qid int64 1 74.7M | question stringlengths 12 33.8k | date stringlengths 10 10 | metadata list | response_j stringlengths 0 115k | response_k stringlengths 2 98.3k |
|---|---|---|---|---|---|
4,637 | I am trying to find the audio book version of the Steve Erikson series. Were these audio books ever created? If they exist, where can I find them?I can't find them at any major online audio book store. | 2011/07/22 | [
"https://scifi.stackexchange.com/questions/4637",
"https://scifi.stackexchange.com",
"https://scifi.stackexchange.com/users/2432/"
] | first 3 books in the malazan book of the fallen series were released consecutively each month right after the release of Forge of Darkness: Kharkanas Trilogy, Book 1. I assume the next 3 would be released when book 2 of the kharkanas trilogy(working title Fall of Light ) is released. | I'd say they're too long to justify the production costs...900-1100 pages per book? A dozen or so books? You'd have to reach full-on mega bestseller status for that to happen. |
4,637 | I am trying to find the audio book version of the Steve Erikson series. Were these audio books ever created? If they exist, where can I find them?I can't find them at any major online audio book store. | 2011/07/22 | [
"https://scifi.stackexchange.com/questions/4637",
"https://scifi.stackexchange.com",
"https://scifi.stackexchange.com/users/2432/"
] | There is an audio book for [Gardens of the Moon](http://rads.stackoverflow.com/amzn/click/B009L65JEG).
And here is one for [The Deadhouse Gates](http://rads.stackoverflow.com/amzn/click/B00BJOGMY4).
And here is one for the [Crippled God](http://rads.stackoverflow.com/amzn/click/B011AZMLF0).
All the books in between also have audiobooks.
There are even audiobooks for related novels, such as [Night of Knives](http://rads.stackoverflow.com/amzn/click/B01E4G7GYS).
It appears that they are all free with an Audible trial, so that might be the best way to listen to them. | I'd say they're too long to justify the production costs...900-1100 pages per book? A dozen or so books? You'd have to reach full-on mega bestseller status for that to happen. |
28,665 | I am aiming to create a heat map of Census tracts in Georgia based on population. I have all of the data - the population for each census tract in Georgia.
I've been able to create the heat map successfully by importing a census tract shapefile and following this tutorial: <http://qgis.spatialthoughts.com/2012/03/using-tabular-data-in-qgis.html>
However I am stuck on how to add a nice looking map layer underneath which will show common geographical features - highways, cities, water courses etc. I have tried importing OSM data from cloudmade but there is far too much detail. The map is supposed to be fairly high level but the shapefiles from there show every single road. I am trying to replace MS MapPoint (no 2010 census tracts). The functionality I am trying to get would allow for different levels of detail depending on how far I zoom. Generally just showing major roads / cities etc. I don't mind if this is automatic or manual.
Could anyone point me in the right direction? | 2012/07/02 | [
"https://gis.stackexchange.com/questions/28665",
"https://gis.stackexchange.com",
"https://gis.stackexchange.com/users/8575/"
] | Some options:
1. Use the [OpenLayers Plugin](https://plugins.qgis.org/plugins/openlayers_plugin/). This plugin allows you to use Google, Bing or OSM's tiles as background image.
2. Create a custom vector style similar to Google or OSM. [Underdark](https://gis.stackexchange.com/users/187/underdark) made a series of post on how to do this with OSM data using the [New Symbology Rule based rendering](http://underdark.wordpress.com/2011/09/16/google-maps-styled-road-maps-in-qgis/). She even provided the [qml in github.](https://github.com/anitagraser/QGIS-resources/) | The OpenLayers Plugin is intended to provide numerous background maps in Qgis such as Google Maps or Terrain. Anyway, sometimes Google is not suitable for your needs, because its style [conflicts](http://spatialityblog.com/2010/05/21/thoughts-about-google-map-styles/) with your overlays.
For this reason, I managed to tweak the OpenLayers Plugin in order to [load Google Maps styled](http://gistncase.blogspot.co.uk/2014/02/how-to-add-google-maps-styled-layer-in.html), allowing you to display your own customized Google Maps just as the other Google layers.
Be aware that Google tiles resolution is quite poor for printing. |
28,665 | I am aiming to create a heat map of Census tracts in Georgia based on population. I have all of the data - the population for each census tract in Georgia.
I've been able to create the heat map successfully by importing a census tract shapefile and following this tutorial: <http://qgis.spatialthoughts.com/2012/03/using-tabular-data-in-qgis.html>
However I am stuck on how to add a nice looking map layer underneath which will show common geographical features - highways, cities, water courses etc. I have tried importing OSM data from cloudmade but there is far too much detail. The map is supposed to be fairly high level but the shapefiles from there show every single road. I am trying to replace MS MapPoint (no 2010 census tracts). The functionality I am trying to get would allow for different levels of detail depending on how far I zoom. Generally just showing major roads / cities etc. I don't mind if this is automatic or manual.
Could anyone point me in the right direction? | 2012/07/02 | [
"https://gis.stackexchange.com/questions/28665",
"https://gis.stackexchange.com",
"https://gis.stackexchange.com/users/8575/"
] | Some options:
1. Use the [OpenLayers Plugin](https://plugins.qgis.org/plugins/openlayers_plugin/). This plugin allows you to use Google, Bing or OSM's tiles as background image.
2. Create a custom vector style similar to Google or OSM. [Underdark](https://gis.stackexchange.com/users/187/underdark) made a series of post on how to do this with OSM data using the [New Symbology Rule based rendering](http://underdark.wordpress.com/2011/09/16/google-maps-styled-road-maps-in-qgis/). She even provided the [qml in github.](https://github.com/anitagraser/QGIS-resources/) | **QuickMapServices** plugin will give you LOTS of base maps. More info:
<https://nextgis.com/blog/quickmapservices/>
<https://opengislab.com/blog/2018/4/15/add-basemaps-in-qgis-30> |
28,665 | I am aiming to create a heat map of Census tracts in Georgia based on population. I have all of the data - the population for each census tract in Georgia.
I've been able to create the heat map successfully by importing a census tract shapefile and following this tutorial: <http://qgis.spatialthoughts.com/2012/03/using-tabular-data-in-qgis.html>
However I am stuck on how to add a nice looking map layer underneath which will show common geographical features - highways, cities, water courses etc. I have tried importing OSM data from cloudmade but there is far too much detail. The map is supposed to be fairly high level but the shapefiles from there show every single road. I am trying to replace MS MapPoint (no 2010 census tracts). The functionality I am trying to get would allow for different levels of detail depending on how far I zoom. Generally just showing major roads / cities etc. I don't mind if this is automatic or manual.
Could anyone point me in the right direction? | 2012/07/02 | [
"https://gis.stackexchange.com/questions/28665",
"https://gis.stackexchange.com",
"https://gis.stackexchange.com/users/8575/"
] | The OpenLayers Plugin is intended to provide numerous background maps in Qgis such as Google Maps or Terrain. Anyway, sometimes Google is not suitable for your needs, because its style [conflicts](http://spatialityblog.com/2010/05/21/thoughts-about-google-map-styles/) with your overlays.
For this reason, I managed to tweak the OpenLayers Plugin in order to [load Google Maps styled](http://gistncase.blogspot.co.uk/2014/02/how-to-add-google-maps-styled-layer-in.html), allowing you to display your own customized Google Maps just as the other Google layers.
Be aware that Google tiles resolution is quite poor for printing. | **QuickMapServices** plugin will give you LOTS of base maps. More info:
<https://nextgis.com/blog/quickmapservices/>
<https://opengislab.com/blog/2018/4/15/add-basemaps-in-qgis-30> |
137,975 | *Harry Potter and the Cursed Child* is marketed as
>
> The eighth story. Nineteen years later.
>
>
>
In big block caps on the back of the book.
The front cover also proclaims
>
> Based on an original new story by
>
>
> **J.K. Rowling**
>
>
> John Tiffany & Jack Thorne
>
>
> A new play by Jack Thorne
>
>
>
With Rowling's name being very much more prominent.
But it's very clear that Rowling didn't actually write the play.
So, do we have anything more concrete than "based on an original new story", do we know how much she had to do with the plot and the development of the characters, and the big reveals like
>
> Delphi being Voldemort's daughter.
>
>
> | 2016/08/14 | [
"https://scifi.stackexchange.com/questions/137975",
"https://scifi.stackexchange.com",
"https://scifi.stackexchange.com/users/46027/"
] | It would appear that JKR *co-authored* the play's story (which presumably includes character creation) but Jack Thorne wrote the actual play. Consultation was held at each stage of the play's development, with Jack Thorne was responsible for the actual dialogue with John Tiffany responsible for the staging. JKR would provide extensive notes but doesn't seem to have done rewrites.
>
> **You both share story credit with J. K. Rowling. How did it work having three writers in the mix?**
>
>
> **John Tiffany**: *Jo Rowling was incredibly generous. I met her first, and I already had a soft spot for her because she used to write
> in the cafe of the Traverse Theater in Edinburgh when I was the
> director. It was only after the first book came out that I realized it
> had been her, nursing one cappuccino for four hours. When we met to
> talk about the play, she asked, “What do you think the Harry Potter
> stories are about?” I said, “Learning to deal with death and grief.”
> There was something in her eye — I thought, we didn’t say it’s about
> transformation or magic or flying on brooms, and we’re on the right
> track.*
>
>
> **Thorne:** *We all met in Edinburgh and as the day developed, we knew we would take the epilogue of “Harry Potter and the Deathly Hallows”
> as a starting point.*
>
>
> **Tiffany:** *All the seeds are there; we start with that scene in the train station. Am I allowed to say that? Anyway, it was clear that she
> was going to let us take those characters and have our own ideas.*
>
>
> **Callender:** *Of course, Jack came to the table with an encyclopedic knowledge of Harry, so that helped.*
>
>
> **Thorne:** *All right, I’m a nerd. With abandonment issues.*
>
>
> **Q. Did you really sketch out the whole arc of the story in that first meeting?**
>
>
> **Thorne:** ***Yes, but then it took about six months to really map the whole thing out. Every time it was like taking a big step forward, one
> or two small ones back. Jo would say, “This feels right, this
> doesn’t.”***
>
>
> **Tiffany:** *There are parts of the story, which when we first conceived them, I didn’t think she would let us do, but she never
> hesitated. It is one thing to let us continue the story, another to
> let us unravel the canon.*
>
>
> [Why J. K. Rowling Endorsed ‘Harry Potter and the Cursed Child’ for the Stage](http://www.nytimes.com/2016/06/06/theater/why-jk-rowling-endorsed-harry-potter-and-the-cursed-child-for-the-stage.html?_r=0)
>
>
>
and
>
> *John Tiffany explains: **"We didn’t start writing the play – or Jack
> didn’t – until we’d agreed on what that story was."** Jack Thorne then
> started on writing the script that is soon to be published in
> (script)book form.*
>
>
> [“I didn’t want to let fans down”: J.K. Rowling, John Tiffany and Jack Thorne on Creating ‘Cursed Child’](http://www.the-leaky-cauldron.org/2016/06/12/i-didnt-want-to-let-fans-down-j-k-rowling-john-tiffany-and-jack-thorne-on-creating-cursed-child/)
>
>
>
and
>
> ***The three of them set the plot that day in J.K. Rowling’s writing
> room. They strung together the narrative then and there in notebooks
> and then Jack and John flew back to London to get started.***
>
>
> *‘We talked a lot, which was really helpful,’ says Jack, when I ask him
> about the task of writing dialogue for Harry Potter. ‘I read the books
> over and over and then tried to write things down on paper...’ He
> sighs. ‘Ah, it’s awesome, I mean, it’s so much fun.’*
>
>
> [Pottermore: Cursed Child creatives on collaborating with J.K. Rowling](https://www.pottermore.com/features/cursed-child-creatives-on-collaborating-with-jk-rowling)
>
>
> | Based on what Rowling has said in interviews, it would seem that the original idea was created by Jack Thorne, John Tiffany, Sonia Friedman, and Colin Callender before Rowling was even involved. Like by most of the other licensed works Rowling was on the creative team and had veto power, but her main contribution seems to be sharing her pre-existing notes on the next-generation with the creative team.
**Rowling originally had not wanted to make a stage adaptation. Producers Sonia Friedman and Colin Callender came up with the idea for The Cursed Child and successfully pitched it to Rowling.**
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> *Over the years I have received countless approaches about turning Harry Potter into a theatrical production, but **Sonia and Colin’s vision** was the only one that really made sense to me, and which had the sensitivity, intensity and intimacy I thought appropriate for bringing Harry's story to the stage. After a year in gestation it is exciting to see this project moving on to the next phase. I’d like to thank Warner Bros. for their continuing support in this project.*
>
> ([J.K. Rowling Announcement - December 20, 2013](https://www.facebook.com/JKRowling/posts/490670751041546))
>
>
>
>
> **You also announced that you're going to collaborate on a theatre production.**
>
>
> **J.K. Rowling**: *Yes that was **a really interesting idea that Sonia Friedman came up with.** I've been so resistant for a long time about theatre productions. Quite a few people wanted to do a Harry Potter musical. I didn't really see Harry as a musical so we said no to all of that, but Sonia came along with a very thoughtful, very interesting idea. I'm quite excited about that.*
>
> ([J.K. Rowling: Author and Philanthropist. Wonderland Magazine, February/March 2014, p 184.](http://www.jkrowling.co.uk/uploads/documents/en_GB-press-wonderland-interview-1392395003.png))
>
>
>
>
> **Why a play? Was it J. K. Rowling’s idea?**
>
>
> **Sonia Friedman:** ***It was absolutely Colin’s and my idea.*** We knew that many other producers had approached her and she had rejected their pitches. But that’s because they were all ideas about musicals or arena spectacles. **We went to her with the simple idea of a straight play.** We were clear we didn’t want to adapt a novel, and **we suggested exploring how Harry, an orphan, would cope as an adult and a parent.**
>
>
> **Colin Callender:** *We went up to Edinburgh four years ago and sat in a boardroom and talked about fathers and parenting for a while. We said we felt she had created a fully dimensional world, and there were things about the characters she hadn’t revealed. We didn’t hear anything for a bit, then got the call to say, “Let’s go to the next stage.”*
>
> ([NY Times - Why J. K. Rowling Endorsed ‘Harry Potter and the Cursed Child’ for the Stage](https://www.nytimes.com/2016/06/06/theater/why-jk-rowling-endorsed-harry-potter-and-the-cursed-child-for-the-stage.html))
>
>
>
>
> ***She [Sonia Friedman] had been in tears when she knocked on J K Rowling’s door in Edinburgh, readying to make the big pitch***; her father had lived in the neighbouring street. “I’d been thinking, ‘If only my dad were alive now, perhaps he’d finally be proud of me’. So, I talked a lot about him when we first met. We didn’t talk about merchandise and box-office. I talked about what I wanted an audience to feel. **I said, ‘I think this needs to be about a dad who doesn’t know how to be a dad’.**”
>
>
> *The rest is theatrical history, still in the making. So, what next? The show will get a Broadway incarnation next year but Friedman says she won’t be “settled until we have 10 productions around the world”. Will it be like a blockbuster musical? “Yes, but it’s a play, and seven hours in the theatre, so we have to get it right.”*
>
> ([The Telegraph - Cursed Child mastermind Sonia Friedman: 'I was in tears when I met JK Rowling'](http://www.telegraph.co.uk/theatre/playwrights/sonia-friedman-tears-met-jk-rowling/))
>
>
>
>
> *Speaking at the opening gala of Harry Potter And The Cursed Child in the West End, the author said **finally agreeing to go ahead with a stage show** had been a "daunting" prospect.*
>
>
> *She said: **"I think I've had probably three offers a week for the past decade to do either a musical or a play or an ice show or an opera - you name it, I've been asked to do it."***
>
>
> *She said **meeting producer Sonia Friedman** - whose credits include The Book Of Mormon and Funny Girl - **convinced her that "this is the one".***
>
> ([Sky News - Rowling Rejected Hundreds Of Potter Spin-Offs](http://news.sky.com/story/rowling-rejected-hundreds-of-potter-spin-offs-10517425))
>
>
>
>
> **Sonia Friedman:** *She had no intention of doing a theater show, but we **when explained what we wanted to do, and how we were going to do it, she seemed to be fine.***
>
>
> **Colin Calindar:** *You know, **we didn't talk story**, we didn't talk about plot.*
>
> ([Harry Potter and the Cursed Child Premiere - Rebecca Williams reports](https://www.youtube.com/watch?v=zVouImJMFYU))
>
>
>
>
> **John Tiffany:** ***I was approached by Sonia and Colin***, and they told me that they'd been to meet with Jo, and Jo had given them the okay to move forward with the idea of putting Harry onstage and exploring the adult Harry, and specifically looking at what happened to somebody who'd had the childhood that Harry had, and how he then became a parent, a father himself.
>
> ([Extended transcript: J.K. Rowling and the creative team behind "Cursed Child"](https://www.cbsnews.com/news/extended-transcript-j-k-rowling-and-the-creative-team-behind-harry-potter-and-the-cursed-child/))
>
>
>
>
> ***It was Ms. Friedman and Mr. Callender who, six years ago, brought the idea of a play to Ms. Rowling,*** even though she had consistently rebuffed proposals to create stage versions of her novels. “Most of the ideas were about musicals, which I don’t love,” Ms. Rowling said, “or redoing the books on stage. I wasn’t interested in doing Harry in every medium.”
>
>
> ***Their proposition was different. They suggested*** extending the story and creating a new work, which intrigued Ms. Rowling.
>
>
> *“We talked about loss, fear, bereavement, what it’s like to try to make a family when your own is poor or nonexistent,” she said. “I was really interested in making something more reflective than had been possible in the films. I don’t think we ever deviated from those themes.”*
>
> ([NY Times - How Much Magic Can ‘Harry Potter and the Cursed Child’ Make on Broadway?](https://mobile.nytimes.com/2018/02/21/theater/harry-potter-and-the-cursed-child-jk-rowling.html))
>
>
>
>
> *For ten years I said no to proposals to adapt Harry for the stage, usually as a musical, and using the existing books. So when I met producers Sonia Friedman and Colin Callender, I wasn’t sure what I was going to hear. I only knew that they wanted to do something new, which was intriguing, because I had no desire to go endlessly back over old ground.*
>
> (["Answers to Questions", jkrowling.com, may 30 2018](https://www.jkrowling.com/opinions/answers-to-questions/))
>
>
>
**The general idea for the play was then thought out by director Jack Tiffany and writer John Thorne with Rowling's help. Thorne did all the writing, with Rowling merely approving it.**
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> **What changed your mind?**
>
>
> **J.K. Rowling:** *Meeting Sonya Friedman, Jack Thorne and John Tiffany changed my mind.*
> *I knew there was other material there, I gave it all to them and they've turned out the play.*
>
> ([BBC News - JK Rowling: I did say 'never say never' for Harry Potter](http://www.bbc.com/news/entertainment-arts-36932417))
>
>
>
>
> *His [Jack Thorne's] involvement in Potter came through Let the Right One In’s director, John Tiffany, and the producer Sonia Friedman, who recommended Thorne to J K Rowling. **Tiffany and Thorne trooped off to see Rowling and find what new material they could develop for Thorne to script.** They came up with the idea of a sequel tracking the adventures of Harry’s son Albus and his best friend, Scorpius Malfoy.*
>
>
> Thorne had long been a Potter addict and his anxiety about treading on such hallowed ground was assuaged by Rowling’s involvement. “I had a big advantage – **my first reader was John, and my second was Jo.** If you’ve got the person out of whose head these characters came, then you go, **‘OK, I can make some choices. If they’re the wrong ones, she’ll say.’** And she did. I’m pretty sure I could have been fired at any time.”
>
> ([NewStatesman - From Harry Potter to Jimmy Savile: Jack Thorne on the darkness that defines his dramas](http://www.newstatesman.com/culture/music-theatre/2017/05/harry-potter-jimmy-savile-jack-thorne-darkness-defines-his-dramas))
>
>
>
>
> *I would love to be with you tonight to accept this award alongside my co-collaborators, but something else was happening in the Wizarding World on the other side of the Atlantic. **I am incredibly proud of*** Harry Potter and the Cursed Child, *but Jack Thorne and John Tiffany must take all credit for shaping and crafting it from the very very first story into something very special. My endless thanks to them.*
>
> ([Rowling's statement at the 2016 ES Theatre Awards](https://twitter.com/StandardEnts/status/797930607573512193))
>
>
>
>
> *I told John and Jack what I thought had happened to Harry, Ron and Hermione in later years, explained how focused I was on Harry’s son Albus, who’d been given the burden of not one, but three legendary names, and together we created **the story that Jack wrote.***
>
> (["Answers to Questions", jkrowling.com, may 30 2018](https://www.jkrowling.com/opinions/answers-to-questions/))
>
>
>
**Rowling did not do any of the writing herself**
-------------------------------------------------
>
> ***She was clear from the beginning that she was not a playwright and wouldn’t write it***, and that she would only do it if we found a playwright she approved.
>
> ([NY Times - Why J. K. Rowling Endorsed ‘Harry Potter and the Cursed Child’ for the Stage](https://www.nytimes.com/2016/06/06/theater/why-jk-rowling-endorsed-harry-potter-and-the-cursed-child-for-the-stage.html))
>
>
>
>
> **Jack Thorne**: *I'm stuck - and this is the point when I normally e-mail you!*
>
>
> **J.K. Rowling**: *And I say 'oh God, I had that problem in Goblet', fail to offer any decent solution and you do it!*
>
> ([Twitter - @jk\_rowling](https://twitter.com/jk_rowling/status/614555744688603136))
>
>
>
>
> Just to say that this a show actually written by an awful lot of people. A lot of people who you have seen come up tonight, a lot you haven’t. I feel very, very privileged to be apart of it. **Thank you Sonia, thank you Collin, thank you, thank you, John Tiffany.**
>
> ([Jack Thorne - 2017 Oliver Awards](https://www.youtube.com/watch?v=ZwRd9g69ZsA))
>
>
>
>
> **The ideas for the books came from you. The ideas for the movies came from the books. This was extending the story into the future. Who did that? Which of the three of you was most responsible for the storyline as it weaves its way into the future?**
>
>
> **J.K. Rowling:** *The developing the story, I think, was very collaborative between the three of us. I, for obvious reasons, had power of veto over everything. I could say, "No, that didn't happen." But no, it was the three of us. **But the play is Jack's play. Jack did the writing. Jack did the heavy lifting.** And he did it beautifully. And I couldn't be happier.*
>
> ([Extended transcript: J.K. Rowling and the creative team behind "Cursed Child"](https://www.cbsnews.com/news/extended-transcript-j-k-rowling-and-the-creative-team-behind-harry-potter-and-the-cursed-child/))
>
>
>
>
> ***What in Mr. Thorne’s writing had surprised her?*** Ms. Rowling pointed to the way he had imagined the character of Scorpius Malfoy.
>
>
> “He is such a beautiful character, and in many ways the emotional heart of the play,” she said. “And such an amazing foil for Albus, who is tortured and self-involved.”
>
> ([NY Times - How Much Magic Can ‘Harry Potter and the Cursed Child’ Make on Broadway?](https://mobile.nytimes.com/2018/02/21/theater/harry-potter-and-the-cursed-child-jk-rowling.html))
>
>
> |
943 | We all love [Software Recommendations Stack Exchange](http://softwarerecs.stackexchange.com), but there is a whole world of people out there who need answers to their questions and don't even know that this site exists. When they arrive from Google, what will their first impression be? Let's try to look at this site through the eyes of someone who's never seen it before, and see how we stack up against the rest of the 'Net.
The [Site Self-Evaluation review queue](https://softwarerecs.stackexchange.com/review/site-eval) is open and populated with 10 questions that were asked and answered in the last quarter.
Run a few Google searches to see how easy they are to find and compare the answers we have with the information available on other sites.
Rating the questions is only a part of the puzzle, though. Do you see a pattern of questions that should have been closed but are not? Questions or answers that could use an edit? Anything that's going really well? **Post an answer below to share your thoughts** and discuss these questions and the site's health with your fellow users! | 2014/08/18 | [
"https://softwarerecs.meta.stackexchange.com/questions/943",
"https://softwarerecs.meta.stackexchange.com",
"https://softwarerecs.meta.stackexchange.com/users/-1/"
] | Final Results
=============
* [Eclipse plugin to add "open the current folder in a file browser" feature](https://softwarerecs.stackexchange.com/questions/9681/eclipse-plugin-to-add-open-the-current-folder-in-a-file-browser-feature)
**Net Score: 11** (Excellent: 12, Satisfactory: 14, Needs Improvement: 1)
---
* [Super-lightweight cloud based text editor](https://softwarerecs.stackexchange.com/questions/9794/super-lightweight-cloud-based-text-editor)
**Net Score: 8** (Excellent: 8, Satisfactory: 19, Needs Improvement: 0)
---
* [Find dead code in a C program by runtime analysis](https://softwarerecs.stackexchange.com/questions/7176/find-dead-code-in-a-c-program-by-runtime-analysis)
**Net Score: 5** (Excellent: 8, Satisfactory: 14, Needs Improvement: 3)
---
* [Send a file to Google Search by Image search from the Windows Explorer context menu](https://softwarerecs.stackexchange.com/questions/7396/send-a-file-to-google-search-by-image-search-from-the-windows-explorer-context-m)
**Net Score: 4** (Excellent: 9, Satisfactory: 13, Needs Improvement: 5)
---
* [Tool for drawing diagrams](https://softwarerecs.stackexchange.com/questions/9739/tool-for-drawing-diagrams)
**Net Score: 3** (Excellent: 7, Satisfactory: 21, Needs Improvement: 4)
---
* [Free program to remove hidden files from USB sticks](https://softwarerecs.stackexchange.com/questions/9914/free-program-to-remove-hidden-files-from-usb-sticks)
**Net Score: 1** (Excellent: 5, Satisfactory: 19, Needs Improvement: 4)
---
* [Changing the transparency of a program's window(s) whenever I start it](https://softwarerecs.stackexchange.com/questions/7565/changing-the-transparency-of-a-programs-windows-whenever-i-start-it)
**Net Score: -4** (Excellent: 3, Satisfactory: 14, Needs Improvement: 7)
---
* [Database/Scripting Language suggestion for a project involving heavy inserts?](https://softwarerecs.stackexchange.com/questions/7474/database-scripting-language-suggestion-for-a-project-involving-heavy-inserts)
**Net Score: -6** (Excellent: 5, Satisfactory: 5, Needs Improvement: 11)
---
* [Easy Web interface development framework](https://softwarerecs.stackexchange.com/questions/7318/easy-web-interface-development-framework)
**Net Score: -6** (Excellent: 3, Satisfactory: 16, Needs Improvement: 9)
---
* [Skype replacement for text chatting](https://softwarerecs.stackexchange.com/questions/7219/skype-replacement-for-text-chatting)
**Net Score: -12** (Excellent: 6, Satisfactory: 6, Needs Improvement: 18)
--- | There are lots of questions on SO about recommending the 'best' software for a purpose which are closed. Some may not be suitable for softwarerecs, but regarding those that are, they should be migrated here. |
6,096 | I recently saved my library of kindle ebooks onto a flash drive (I got my nephew to do it for me). I have the file saved on my desktop now and it's quite a few books (10 gigs). Now I have windows 8 and have the kindle app but have not the slightest idea on how to save all these books to the kindle app locally, without using the internet. The books are in a folder format of Author - titles - data.
So I have 1 folder called Kindle, in this folder i have countless folders of the names of all the authors I have and in each of those the titles of the books by that author and in that I have the data for that specific book which is 3 different files; a '.opf' , '.mobi' and a '.jpg'. Now these I presume are the cover the book itself and the mobile version?
Anyways I really would just like to copy this file locally so that I can browse my books on the kindle app. | 2015/08/25 | [
"https://ebooks.stackexchange.com/questions/6096",
"https://ebooks.stackexchange.com",
"https://ebooks.stackexchange.com/users/5163/"
] | In Calibre, the Add books menu choice has several options. One is:
"Add books from directories, including sub-directories (Multiple books per directory, assumes every ebook file is a different book): Allows you to choose a directory. The directory and all its sub-directories are scanned recursively and any ebooks found are added to the library. calibre assumes that each directory contains many books. All ebook files with the same name in a directory are assumed to be the same book in different formats. Ebooks with different names are added as different books."
If you ***point to the folder*** and use that Add option, it will do them all,see this:
[](https://i.stack.imgur.com/Lrykr.png) | I believe you are wanting to read these Kindle books on your PC, right?
I use the fantastic and free application called Calibre Reader.
You can get it at:
<http://calibre-ebook.com/>
It's very easy to intall and manage. Once you start it you can just tell it where your books are and it will import them all from the disk location. |
190,311 | I don't understand why it's "**take** a photo". Why *take*? Is there any rule for this? | 2014/08/14 | [
"https://english.stackexchange.com/questions/190311",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/88213/"
] | If we go back to painting we have words and expressions that offer the very same relationship between painter and subject. For example to 'capture a likeness'.
Then let's go back to earlier, to the word 'draw'. To draw means to pull. To draw a horse and cart. To take from one place to another. To withdraw money from one account to another.
This idea is the same in other languages. A portrait in Italian for example is 'ritratto', trarre (traere) means to pull/draw. The etymology of portrait would suggest it also means to take a likeness from where it is towards you now.
Interestingly how also photos were often initially viewed as 'stealing' part of you.
All in all, when we talk about reproducing what we see via pencil, paint or photo we are taking it from it is to where we are now. | There are only two verbs one can use in regards of using a camera to produce an image - 'take' and 'make'.
'Make' has am implied meaning of investing some effort - as in 'make dinner'.
'Take' feels more effortless.
Some years ago, photos were actually 'made' because it involved film processing, while now we just 'take' them. |
190,311 | I don't understand why it's "**take** a photo". Why *take*? Is there any rule for this? | 2014/08/14 | [
"https://english.stackexchange.com/questions/190311",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/88213/"
] | In addition to the point made by Ronan, I think *take* belongs to the group of verbs that are semantically empty and are often christened *delexical verbs*. We often like to represent actions as nouns, often for maintaining an easy rhythm in speech.
So we 'take a walk', 'have/take a bath', 'have a read', 'have a look', 'take a dip', 'give a shove', 'give a laugh', 'make a promise' and so on.
In other words, don't think too much of the meaning of the verbs there! | If we go back to painting we have words and expressions that offer the very same relationship between painter and subject. For example to 'capture a likeness'.
Then let's go back to earlier, to the word 'draw'. To draw means to pull. To draw a horse and cart. To take from one place to another. To withdraw money from one account to another.
This idea is the same in other languages. A portrait in Italian for example is 'ritratto', trarre (traere) means to pull/draw. The etymology of portrait would suggest it also means to take a likeness from where it is towards you now.
Interestingly how also photos were often initially viewed as 'stealing' part of you.
All in all, when we talk about reproducing what we see via pencil, paint or photo we are taking it from it is to where we are now. |
190,311 | I don't understand why it's "**take** a photo". Why *take*? Is there any rule for this? | 2014/08/14 | [
"https://english.stackexchange.com/questions/190311",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/88213/"
] | You can actually ***make*** photos as well, although ***to take*** a photo is more prevalent.
There are people on the Photography sub-site of StackExchange that determine their use based on what sort of action they are performing, noting subtle differences between to make and to take. See [Does a photographer take pictures or make pictures?](https://photo.stackexchange.com/questions/5936/does-a-photographer-take-pictures-or-make-pictures). | There are only two verbs one can use in regards of using a camera to produce an image - 'take' and 'make'.
'Make' has am implied meaning of investing some effort - as in 'make dinner'.
'Take' feels more effortless.
Some years ago, photos were actually 'made' because it involved film processing, while now we just 'take' them. |
190,311 | I don't understand why it's "**take** a photo". Why *take*? Is there any rule for this? | 2014/08/14 | [
"https://english.stackexchange.com/questions/190311",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/88213/"
] | It seems to be an extension of taking notes.
From "The Language of Photography"
<http://www.source.ie/issues/issues2140/issue22/is22artlanpho.html>
>
> *To photograph* exists alongside *to take a photograph*, *to take a picture*, and so on. This is an extension of a broad meaning of *take* 'to obtain or set down', as in *taking* notes or statements, 'to set down or get in writing'; more directly, it is an extension of a use recorded from the 17th century onwards in structures such as *taking pictures*, *likenesses*, or *portraits* 'to obtain or get a picture'. The specific photographic use seems to have driven out uses in relation to pictorial art - nowadays, we paint, draw, or produce portraits, and make or do drawings - so that *taking a picture* can only refer to photography.
>
>
> | A Chinese perspective:
In Chinese, one verb/noun can have totally different meanings. "take a photo" in Chinese is "拍照", "拍" means clap, "照" means "photo". In some province in China people say "捏一张" which also means "take a photo". "捏" means "pinch", "一张" means "one piece".
So, what I want to say is, sometimes an existing verb may be 'borrowed' to invent a new meaning. The existing meaning no longer suitable in new phrase.
Sometime the verb is not important, it just picked make a noun become a verb or action. |
190,311 | I don't understand why it's "**take** a photo". Why *take*? Is there any rule for this? | 2014/08/14 | [
"https://english.stackexchange.com/questions/190311",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/88213/"
] | Photography is about capturing the state of some photons within a moment (well, a very brief period of time). Once captured, the information about that state can be taken with you and reproduced anywhere. "Taking a photo" amounts to collecting information from the environment and carrying it away, i.e. literally the act of taking.
Peter provides some good examples of how "take" can be used in other scenarios where such reasoning doesn't make sense (I certainly don't carry a tub around with me whenever I "take a bath") but I think in this case, a literal meaning can and should be inferred.
I think my answer might be similar to Ronan's, but not enough to be a comment on that answer. | There are only two verbs one can use in regards of using a camera to produce an image - 'take' and 'make'.
'Make' has am implied meaning of investing some effort - as in 'make dinner'.
'Take' feels more effortless.
Some years ago, photos were actually 'made' because it involved film processing, while now we just 'take' them. |
190,311 | I don't understand why it's "**take** a photo". Why *take*? Is there any rule for this? | 2014/08/14 | [
"https://english.stackexchange.com/questions/190311",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/88213/"
] | If we go back to painting we have words and expressions that offer the very same relationship between painter and subject. For example to 'capture a likeness'.
Then let's go back to earlier, to the word 'draw'. To draw means to pull. To draw a horse and cart. To take from one place to another. To withdraw money from one account to another.
This idea is the same in other languages. A portrait in Italian for example is 'ritratto', trarre (traere) means to pull/draw. The etymology of portrait would suggest it also means to take a likeness from where it is towards you now.
Interestingly how also photos were often initially viewed as 'stealing' part of you.
All in all, when we talk about reproducing what we see via pencil, paint or photo we are taking it from it is to where we are now. | A Chinese perspective:
In Chinese, one verb/noun can have totally different meanings. "take a photo" in Chinese is "拍照", "拍" means clap, "照" means "photo". In some province in China people say "捏一张" which also means "take a photo". "捏" means "pinch", "一张" means "one piece".
So, what I want to say is, sometimes an existing verb may be 'borrowed' to invent a new meaning. The existing meaning no longer suitable in new phrase.
Sometime the verb is not important, it just picked make a noun become a verb or action. |
190,311 | I don't understand why it's "**take** a photo". Why *take*? Is there any rule for this? | 2014/08/14 | [
"https://english.stackexchange.com/questions/190311",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/88213/"
] | It seems to be an extension of taking notes.
From "The Language of Photography"
<http://www.source.ie/issues/issues2140/issue22/is22artlanpho.html>
>
> *To photograph* exists alongside *to take a photograph*, *to take a picture*, and so on. This is an extension of a broad meaning of *take* 'to obtain or set down', as in *taking* notes or statements, 'to set down or get in writing'; more directly, it is an extension of a use recorded from the 17th century onwards in structures such as *taking pictures*, *likenesses*, or *portraits* 'to obtain or get a picture'. The specific photographic use seems to have driven out uses in relation to pictorial art - nowadays, we paint, draw, or produce portraits, and make or do drawings - so that *taking a picture* can only refer to photography.
>
>
> | If we go back to painting we have words and expressions that offer the very same relationship between painter and subject. For example to 'capture a likeness'.
Then let's go back to earlier, to the word 'draw'. To draw means to pull. To draw a horse and cart. To take from one place to another. To withdraw money from one account to another.
This idea is the same in other languages. A portrait in Italian for example is 'ritratto', trarre (traere) means to pull/draw. The etymology of portrait would suggest it also means to take a likeness from where it is towards you now.
Interestingly how also photos were often initially viewed as 'stealing' part of you.
All in all, when we talk about reproducing what we see via pencil, paint or photo we are taking it from it is to where we are now. |
190,311 | I don't understand why it's "**take** a photo". Why *take*? Is there any rule for this? | 2014/08/14 | [
"https://english.stackexchange.com/questions/190311",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/88213/"
] | You can actually ***make*** photos as well, although ***to take*** a photo is more prevalent.
There are people on the Photography sub-site of StackExchange that determine their use based on what sort of action they are performing, noting subtle differences between to make and to take. See [Does a photographer take pictures or make pictures?](https://photo.stackexchange.com/questions/5936/does-a-photographer-take-pictures-or-make-pictures). | A Chinese perspective:
In Chinese, one verb/noun can have totally different meanings. "take a photo" in Chinese is "拍照", "拍" means clap, "照" means "photo". In some province in China people say "捏一张" which also means "take a photo". "捏" means "pinch", "一张" means "one piece".
So, what I want to say is, sometimes an existing verb may be 'borrowed' to invent a new meaning. The existing meaning no longer suitable in new phrase.
Sometime the verb is not important, it just picked make a noun become a verb or action. |
190,311 | I don't understand why it's "**take** a photo". Why *take*? Is there any rule for this? | 2014/08/14 | [
"https://english.stackexchange.com/questions/190311",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/88213/"
] | It seems to be an extension of taking notes.
From "The Language of Photography"
<http://www.source.ie/issues/issues2140/issue22/is22artlanpho.html>
>
> *To photograph* exists alongside *to take a photograph*, *to take a picture*, and so on. This is an extension of a broad meaning of *take* 'to obtain or set down', as in *taking* notes or statements, 'to set down or get in writing'; more directly, it is an extension of a use recorded from the 17th century onwards in structures such as *taking pictures*, *likenesses*, or *portraits* 'to obtain or get a picture'. The specific photographic use seems to have driven out uses in relation to pictorial art - nowadays, we paint, draw, or produce portraits, and make or do drawings - so that *taking a picture* can only refer to photography.
>
>
> | You can actually ***make*** photos as well, although ***to take*** a photo is more prevalent.
There are people on the Photography sub-site of StackExchange that determine their use based on what sort of action they are performing, noting subtle differences between to make and to take. See [Does a photographer take pictures or make pictures?](https://photo.stackexchange.com/questions/5936/does-a-photographer-take-pictures-or-make-pictures). |
190,311 | I don't understand why it's "**take** a photo". Why *take*? Is there any rule for this? | 2014/08/14 | [
"https://english.stackexchange.com/questions/190311",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/88213/"
] | Photography is about capturing the state of some photons within a moment (well, a very brief period of time). Once captured, the information about that state can be taken with you and reproduced anywhere. "Taking a photo" amounts to collecting information from the environment and carrying it away, i.e. literally the act of taking.
Peter provides some good examples of how "take" can be used in other scenarios where such reasoning doesn't make sense (I certainly don't carry a tub around with me whenever I "take a bath") but I think in this case, a literal meaning can and should be inferred.
I think my answer might be similar to Ronan's, but not enough to be a comment on that answer. | A Chinese perspective:
In Chinese, one verb/noun can have totally different meanings. "take a photo" in Chinese is "拍照", "拍" means clap, "照" means "photo". In some province in China people say "捏一张" which also means "take a photo". "捏" means "pinch", "一张" means "one piece".
So, what I want to say is, sometimes an existing verb may be 'borrowed' to invent a new meaning. The existing meaning no longer suitable in new phrase.
Sometime the verb is not important, it just picked make a noun become a verb or action. |
2,102,159 | Is Perl a good option for writing (possibly and partially) platform independent desktop applications? I know there are interesting widget libraries like [GTK2 Perl](http://gtk2-perl.sourceforge.net/) and [wxWidgets](http://www.wxwidgets.org/) but I'm not familiar with development on Windows.
Is it possible to write a good application with Perl and those tools, maybe embedding everything needed to avoid asking the user to install external (and probably non conventional for many) libraries? Are there examples of this kind of apps around? | 2010/01/20 | [
"https://Stackoverflow.com/questions/2102159",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/148968/"
] | Sort of. You can certainly write Perl scripts that provide a Tk GUI that will work on any platform, and you can even package the libraries they need to work with PAR to put together an application that will run anywhere with an appropriate version of perl installed without requiring the end use to install a bunch of stuff from CPAN to get it to work.
However, an application that will run anywhere *without* requiring an existing perl installation (and it's probably not safe to assume the average Windows user will have perl) isn't really viable. One solution would be to distribute an "everywhere but Windows" version that simply uses PAR to include the necessary libraries, and a PAR::Packer-built version for Windows, which would be a fully-functional .exe including the perl interpreter and the libraries.
EDIT: following daotoad's response, it does appear that ActiveState's PerlApp can build cross-platform binaries for for Windows, Mac OS X, Linux, Solaris, and AIX; I haven't tried this but if it works as advertised it would seem to meet your requirements. | Check out [PAR](http://par.perl.org) (available via CPAN) with respect to your bundling requirement.
Consider having a look at [Padre](http://padre.perlide.org) for an example of a complex application written in perl using [Wx](http://search.cpan.org/dist/Wx).
So yes. All of your requirements are achievable, including portability. |
2,102,159 | Is Perl a good option for writing (possibly and partially) platform independent desktop applications? I know there are interesting widget libraries like [GTK2 Perl](http://gtk2-perl.sourceforge.net/) and [wxWidgets](http://www.wxwidgets.org/) but I'm not familiar with development on Windows.
Is it possible to write a good application with Perl and those tools, maybe embedding everything needed to avoid asking the user to install external (and probably non conventional for many) libraries? Are there examples of this kind of apps around? | 2010/01/20 | [
"https://Stackoverflow.com/questions/2102159",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/148968/"
] | My employer uses [ActiveState's PerlApp](http://www.activestate.com/perl_dev_kit/) to produce executable versions of our apps with great success.
We tested PAR and PerlApp before selecting our packaging method. At that time, PerlApp had faster load times. Several versions of each tool have come and gone since then, so I would recommend testing with each before selecting a tool.
Executable packaging has been very effective for us.
There are a few portability issues issues with Perl, but if you pay attention to [perlport](http://perldoc.perl.org/perlport.html), it's easy to avoid most issues. Our biggest problems are always with Win32. From time to time, some simple thing will require stupid, bizarre work-arounds or digging into Win32 API for a platform specific hack.
We have used both Wx and Tk guis.
[Frozen Bubble](http://www.frozen-bubble.org/) is a well known and widely available app you can look at. | Check out [PAR](http://par.perl.org) (available via CPAN) with respect to your bundling requirement.
Consider having a look at [Padre](http://padre.perlide.org) for an example of a complex application written in perl using [Wx](http://search.cpan.org/dist/Wx).
So yes. All of your requirements are achievable, including portability. |
2,102,159 | Is Perl a good option for writing (possibly and partially) platform independent desktop applications? I know there are interesting widget libraries like [GTK2 Perl](http://gtk2-perl.sourceforge.net/) and [wxWidgets](http://www.wxwidgets.org/) but I'm not familiar with development on Windows.
Is it possible to write a good application with Perl and those tools, maybe embedding everything needed to avoid asking the user to install external (and probably non conventional for many) libraries? Are there examples of this kind of apps around? | 2010/01/20 | [
"https://Stackoverflow.com/questions/2102159",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/148968/"
] | Check out [PAR](http://par.perl.org) (available via CPAN) with respect to your bundling requirement.
Consider having a look at [Padre](http://padre.perlide.org) for an example of a complex application written in perl using [Wx](http://search.cpan.org/dist/Wx).
So yes. All of your requirements are achievable, including portability. | I am working on the module `XUL::Gui` on [CPAN](http://search.cpan.org/dist/XUL-Gui/), which uses Firefox to display cross platform gui apps from Perl. It is under development, but stable, and may be complete enough for your needs. You can build your gui in HTML and/or XUL (the Mozilla gui language that Firefox itself is written in), and then style everything with CSS. Let me know if you have any feature requests. |
2,102,159 | Is Perl a good option for writing (possibly and partially) platform independent desktop applications? I know there are interesting widget libraries like [GTK2 Perl](http://gtk2-perl.sourceforge.net/) and [wxWidgets](http://www.wxwidgets.org/) but I'm not familiar with development on Windows.
Is it possible to write a good application with Perl and those tools, maybe embedding everything needed to avoid asking the user to install external (and probably non conventional for many) libraries? Are there examples of this kind of apps around? | 2010/01/20 | [
"https://Stackoverflow.com/questions/2102159",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/148968/"
] | Sort of. You can certainly write Perl scripts that provide a Tk GUI that will work on any platform, and you can even package the libraries they need to work with PAR to put together an application that will run anywhere with an appropriate version of perl installed without requiring the end use to install a bunch of stuff from CPAN to get it to work.
However, an application that will run anywhere *without* requiring an existing perl installation (and it's probably not safe to assume the average Windows user will have perl) isn't really viable. One solution would be to distribute an "everywhere but Windows" version that simply uses PAR to include the necessary libraries, and a PAR::Packer-built version for Windows, which would be a fully-functional .exe including the perl interpreter and the libraries.
EDIT: following daotoad's response, it does appear that ActiveState's PerlApp can build cross-platform binaries for for Windows, Mac OS X, Linux, Solaris, and AIX; I haven't tried this but if it works as advertised it would seem to meet your requirements. | I am working on the module `XUL::Gui` on [CPAN](http://search.cpan.org/dist/XUL-Gui/), which uses Firefox to display cross platform gui apps from Perl. It is under development, but stable, and may be complete enough for your needs. You can build your gui in HTML and/or XUL (the Mozilla gui language that Firefox itself is written in), and then style everything with CSS. Let me know if you have any feature requests. |
2,102,159 | Is Perl a good option for writing (possibly and partially) platform independent desktop applications? I know there are interesting widget libraries like [GTK2 Perl](http://gtk2-perl.sourceforge.net/) and [wxWidgets](http://www.wxwidgets.org/) but I'm not familiar with development on Windows.
Is it possible to write a good application with Perl and those tools, maybe embedding everything needed to avoid asking the user to install external (and probably non conventional for many) libraries? Are there examples of this kind of apps around? | 2010/01/20 | [
"https://Stackoverflow.com/questions/2102159",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/148968/"
] | My employer uses [ActiveState's PerlApp](http://www.activestate.com/perl_dev_kit/) to produce executable versions of our apps with great success.
We tested PAR and PerlApp before selecting our packaging method. At that time, PerlApp had faster load times. Several versions of each tool have come and gone since then, so I would recommend testing with each before selecting a tool.
Executable packaging has been very effective for us.
There are a few portability issues issues with Perl, but if you pay attention to [perlport](http://perldoc.perl.org/perlport.html), it's easy to avoid most issues. Our biggest problems are always with Win32. From time to time, some simple thing will require stupid, bizarre work-arounds or digging into Win32 API for a platform specific hack.
We have used both Wx and Tk guis.
[Frozen Bubble](http://www.frozen-bubble.org/) is a well known and widely available app you can look at. | I am working on the module `XUL::Gui` on [CPAN](http://search.cpan.org/dist/XUL-Gui/), which uses Firefox to display cross platform gui apps from Perl. It is under development, but stable, and may be complete enough for your needs. You can build your gui in HTML and/or XUL (the Mozilla gui language that Firefox itself is written in), and then style everything with CSS. Let me know if you have any feature requests. |
159,004 | What is the origin of this phrase? Does this also apply in case of other professions?
Like the goldsmith's children have no jewels or the baker's children don't eat cake? | 2014/03/21 | [
"https://english.stackexchange.com/questions/159004",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/1241/"
] | The oldest version of a proverb with a similar meaning (i.e. one doesn't always benefit from the product of their trade) is to be found in the Bible, [Luke 4:23](http://www.kingjamesbibleonline.org/Luke-4-23/)
>
> Physician, heal thyself. Whatsoever we have heard done at Capernaum, do also here in thine own country.
>
>
>
The *Oxford Dictionary of Proverbs* gives - as Jim already stated - 1546 for the first mention of
>
> But who is wurs shod, than the shoemakers wyfe, With shops full of newe shapen shoes all hir lyfe?
>
> [1546 J. Heywood Dialogue of Proverbs i. xi. E1V]
>
>
>
With reference to the cobbler this proverb exists also in French :
>
> *Les cordonniers sont les plus mal chaussés*.
>
>
>
with a first quote by Montaigne : *Quand nous veoyons un homme mal chaussé, nous disons que ce n'est pas merveille s'il est chaussetier* in his *Essais* (which he started writing in 1572, i.e. after first mention in English)
In German:
>
> *Die Kinder des Schusters haben die schlechtesten Schuhe*.
>
>
>
Similar proverbs are found in Spanish ([*En casa de herrero, cuchillo de palo*](http://mx.answers.yahoo.com/question/index?qid=20071013111109AAV7y8y) "In a blacksmith's home, knives are wooden"). In Chinese "the lady who sells fans fans herself with her hands", in Arabic, "at the potter's house water is served in a broken jug". \*
\* I don't speak these languages and I haven't found the original sayings, I can only quote from a book on proverbs I have in French. | There are many variations on this cobbler proverb, but [here is the oldest I can find](http://www.answers.com/topic/the-shoemaker-s-son-always-goes-barefoot), reported to be from [John Heywood's *Proverbs*](http://www.bartleby.com/100/115.77.html) part i chapter xi, published in 1546 (and quoted later by [Richard Graves](http://en.wikipedia.org/wiki/Richard_Graves) in *The Spiritual Quixote*, published in 1773):
>
> But who is wurs shod, than the shoemakers wyfe, With shops full of newe shapen shoes all hir lyfe?
>
>
>
A couple of similar quotes are:
*A plumber's house always has a dripping tap.*
*A blacksmith's home only has wooden spoons.* |
159,004 | What is the origin of this phrase? Does this also apply in case of other professions?
Like the goldsmith's children have no jewels or the baker's children don't eat cake? | 2014/03/21 | [
"https://english.stackexchange.com/questions/159004",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/1241/"
] | There are many variations on this cobbler proverb, but [here is the oldest I can find](http://www.answers.com/topic/the-shoemaker-s-son-always-goes-barefoot), reported to be from [John Heywood's *Proverbs*](http://www.bartleby.com/100/115.77.html) part i chapter xi, published in 1546 (and quoted later by [Richard Graves](http://en.wikipedia.org/wiki/Richard_Graves) in *The Spiritual Quixote*, published in 1773):
>
> But who is wurs shod, than the shoemakers wyfe, With shops full of newe shapen shoes all hir lyfe?
>
>
>
A couple of similar quotes are:
*A plumber's house always has a dripping tap.*
*A blacksmith's home only has wooden spoons.* | I have seen interpretations of this proverb that focus on a possible altruistic or industrious dimension to its meaning. That, for example, the shoemaker is too busy to attend to his children. perhaps overworked to make even more basic ends meet.
I'm less sure and would rather concur with the above meaning. It's a great phrase as it succinctly describes a conundrum of the human psyche. |
159,004 | What is the origin of this phrase? Does this also apply in case of other professions?
Like the goldsmith's children have no jewels or the baker's children don't eat cake? | 2014/03/21 | [
"https://english.stackexchange.com/questions/159004",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/1241/"
] | The oldest version of a proverb with a similar meaning (i.e. one doesn't always benefit from the product of their trade) is to be found in the Bible, [Luke 4:23](http://www.kingjamesbibleonline.org/Luke-4-23/)
>
> Physician, heal thyself. Whatsoever we have heard done at Capernaum, do also here in thine own country.
>
>
>
The *Oxford Dictionary of Proverbs* gives - as Jim already stated - 1546 for the first mention of
>
> But who is wurs shod, than the shoemakers wyfe, With shops full of newe shapen shoes all hir lyfe?
>
> [1546 J. Heywood Dialogue of Proverbs i. xi. E1V]
>
>
>
With reference to the cobbler this proverb exists also in French :
>
> *Les cordonniers sont les plus mal chaussés*.
>
>
>
with a first quote by Montaigne : *Quand nous veoyons un homme mal chaussé, nous disons que ce n'est pas merveille s'il est chaussetier* in his *Essais* (which he started writing in 1572, i.e. after first mention in English)
In German:
>
> *Die Kinder des Schusters haben die schlechtesten Schuhe*.
>
>
>
Similar proverbs are found in Spanish ([*En casa de herrero, cuchillo de palo*](http://mx.answers.yahoo.com/question/index?qid=20071013111109AAV7y8y) "In a blacksmith's home, knives are wooden"). In Chinese "the lady who sells fans fans herself with her hands", in Arabic, "at the potter's house water is served in a broken jug". \*
\* I don't speak these languages and I haven't found the original sayings, I can only quote from a book on proverbs I have in French. | I have seen interpretations of this proverb that focus on a possible altruistic or industrious dimension to its meaning. That, for example, the shoemaker is too busy to attend to his children. perhaps overworked to make even more basic ends meet.
I'm less sure and would rather concur with the above meaning. It's a great phrase as it succinctly describes a conundrum of the human psyche. |
188,141 | I wish to use Mapbox SDK for iOS and Android apps (mapbox-gl) for rendering of maps that I host myself (that conform to <https://github.com/mapbox/vector-tile-spec>). I went through their pricing and it didn't mention anything about hosting your own maps.
In this scenario - do you still need to comply to their pricing and you are restricted to 50000 mobile users/month if you don't pay? | 2016/04/05 | [
"https://gis.stackexchange.com/questions/188141",
"https://gis.stackexchange.com",
"https://gis.stackexchange.com/users/57506/"
] | I have a similar problem. I want use openmaptiles + mapbox-gl-js for free without licence key. The licenceconditionen on mapbox page is not very clear. So I asked mapbox directly.
I asked:
I want ask you, in what architecture we can use it for free. I’m not sure but I think, if we host self the tilesserver, then we can use Mapbox GL JS for free.
It’s right?
The answer from mapbox:
Yes, that is correct! If you self host your tiles, and only use Mapbox GL JS, then you do not require a license | I can't speak for Mapbox, but generally their approach is their software is free and open source, and their platform costs money to use. You can host your own data, styles etc on your own servers for free. Just remember that these things would use their platform, and hence cost money:
* Using Mapbox Streets vector tiles
* Using APIs such as routing or Surface.
* Hosting your own data on Mapbox
* Using Mapbox-created styles such as Mapbox Outdoors. |
117,861 | Can I write the following?
>
> One of the seagulls spotted a fish and dove after it, but came up **empty-handed**
>
>
>
If not, what other word I can use to replace **empty-handed**? | 2013/06/28 | [
"https://english.stackexchange.com/questions/117861",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/4070/"
] | It is most definitely acceptable to use the phrase **empty-handed** to describe animals.
Even if the animal you're referring to has no hands, the phrase **empty-handed** is understood to mean "having acquired nothing." | I don't see why you shouldn't use **empty-pawed** instead. It's about as accurate as empty-handed, but cuter. |
117,861 | Can I write the following?
>
> One of the seagulls spotted a fish and dove after it, but came up **empty-handed**
>
>
>
If not, what other word I can use to replace **empty-handed**? | 2013/06/28 | [
"https://english.stackexchange.com/questions/117861",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/4070/"
] | It is most definitely acceptable to use the phrase **empty-handed** to describe animals.
Even if the animal you're referring to has no hands, the phrase **empty-handed** is understood to mean "having acquired nothing." | Gulls have webbed feet with small talons. Empty-taloned or empty-clawed appears to be a reasonable description. |
117,861 | Can I write the following?
>
> One of the seagulls spotted a fish and dove after it, but came up **empty-handed**
>
>
>
If not, what other word I can use to replace **empty-handed**? | 2013/06/28 | [
"https://english.stackexchange.com/questions/117861",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/4070/"
] | It is most definitely acceptable to use the phrase **empty-handed** to describe animals.
Even if the animal you're referring to has no hands, the phrase **empty-handed** is understood to mean "having acquired nothing." | You can write simply *came up empty* to indicate that its attempt was unsuccessful. (see [m-w.com's definition](http://www.merriam-webster.com/dictionary/come%20up), below item 6.)
As pointed out in comments, "dropped itself into the water" sounds a bit off. I would suggest something more like this:
>
> One of the seagulls spotted a fish and dove after it, but came up empty.
>
>
> |
117,861 | Can I write the following?
>
> One of the seagulls spotted a fish and dove after it, but came up **empty-handed**
>
>
>
If not, what other word I can use to replace **empty-handed**? | 2013/06/28 | [
"https://english.stackexchange.com/questions/117861",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/4070/"
] | Gulls have webbed feet with small talons. Empty-taloned or empty-clawed appears to be a reasonable description. | I don't see why you shouldn't use **empty-pawed** instead. It's about as accurate as empty-handed, but cuter. |
117,861 | Can I write the following?
>
> One of the seagulls spotted a fish and dove after it, but came up **empty-handed**
>
>
>
If not, what other word I can use to replace **empty-handed**? | 2013/06/28 | [
"https://english.stackexchange.com/questions/117861",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/4070/"
] | You can write simply *came up empty* to indicate that its attempt was unsuccessful. (see [m-w.com's definition](http://www.merriam-webster.com/dictionary/come%20up), below item 6.)
As pointed out in comments, "dropped itself into the water" sounds a bit off. I would suggest something more like this:
>
> One of the seagulls spotted a fish and dove after it, but came up empty.
>
>
> | I don't see why you shouldn't use **empty-pawed** instead. It's about as accurate as empty-handed, but cuter. |
158,344 | I'm working on a project where a device I'm using has [this thermistor](http://www.mouser.com/ProductDetail/Murata-Electronics/NCP15WF104F03RC/?qs=kjWkd8aTHsoJoqil5OufVQ%3D%3D), a Murata NCP15WF104F03RC, to measure the temperature of the device itself. This is a surface mount thermistor. The implementation of my project requires ambient temperature sensing, and comparing the two temperatures.
I figured the easiest way to do this would be to use the same thermistor for ambient temperature sensing, as they would have the same thermal resistance curves and other relevant characteristics, which would probably help with precision of comparison.
Are there any glaring flaws with this design decision? | 2015/03/05 | [
"https://electronics.stackexchange.com/questions/158344",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/24135/"
] | I do it all the time. I like the way it forms nice smooth 135 degree angles trace to pad, pretty much no chance of having etchant traps. On the other hand, you need to be careful. Depending on the component size, having traces come off pads asymmetrically can prevent them from centering during reflow. I've never had a problem with this with anything 0603 or larger. 0402 and smaller, you better think really hard before doing it. It helps to keep your solder mask as tight as board house tolerances will allow. | No, it's fine. Just make sure that if the pad is rectangular rather than square, then the trace still comes out if the corner. Very sharp corners (internal or external) are bad.
Also, make sure your clearances to other pads/traces are OK. |
158,344 | I'm working on a project where a device I'm using has [this thermistor](http://www.mouser.com/ProductDetail/Murata-Electronics/NCP15WF104F03RC/?qs=kjWkd8aTHsoJoqil5OufVQ%3D%3D), a Murata NCP15WF104F03RC, to measure the temperature of the device itself. This is a surface mount thermistor. The implementation of my project requires ambient temperature sensing, and comparing the two temperatures.
I figured the easiest way to do this would be to use the same thermistor for ambient temperature sensing, as they would have the same thermal resistance curves and other relevant characteristics, which would probably help with precision of comparison.
Are there any glaring flaws with this design decision? | 2015/03/05 | [
"https://electronics.stackexchange.com/questions/158344",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/24135/"
] | I do it all the time. I like the way it forms nice smooth 135 degree angles trace to pad, pretty much no chance of having etchant traps. On the other hand, you need to be careful. Depending on the component size, having traces come off pads asymmetrically can prevent them from centering during reflow. I've never had a problem with this with anything 0603 or larger. 0402 and smaller, you better think really hard before doing it. It helps to keep your solder mask as tight as board house tolerances will allow. | You may want to consider some other changes though. Here is one example:
**moderator note:** I would agree that this is more of a comment than an answer. But Michael needed to post images (and image is worth many words), so this had to be posted as an answer. |
6,076,816 | We have a very simple function (We look something up from a third party database and return an answer. It's literally five lines of code.) We would like to offload this task from our main server because we expect a high volume of traffic for this one function and would like to optimize it.
We are thinking about testing the promise of many cloud/PaaS providers, where they handle scaling and performance responsibilities.
We're most interested in Rails environments, but are curious to hear experiences from others about any company in the space.
Here are the PaaS companies we found that supports Rails:
1) Heroku
2) DotCloud
3) Duostack
Questions:
1) Do you know of other Rails-specific companies? Also feel free to list non-Rails companies since we're interested in following other companies in case they eventually provide Rails support.
2) How has your experience been with these companies? | 2011/05/20 | [
"https://Stackoverflow.com/questions/6076816",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/144088/"
] | Foreword and disclaimer: I work for DotCloud; so the following might be biased. You've been warned.
**DotCloud** could be interesting for you if you like the following features:
* run something else than Ruby (what about some Django or Pylons code talking with your SQL DB? Or even some PHP blog like WordPress or Drupal, using the same user authentication database?)
* experiment with databases like Redis or MongoDB, or background ruby workers, without paying for add-ons
* SSH access, crontab access (without requiring an add-on)
* cheaper workers (I didn't come up with this one; some of our users coming from the Heroku world told us that workers were insanely expensive there)
**Duostack** is indeed very nice if you want to mix specifically Rails and Node.js. I've been told that they had awesome auto-configuration facilities.
Finally, if you only plan to do Rails and nothing else, ever, you might as well stick with **Heroku** since they've been in that business for a while, and are probably more mature than the first two of the batch.
*Shameless plug:* DotCloud is offering a beta test drive; so if you want to see what it looks like, just subscribe to the beta and you will be quickly enough be able to see for yourself. Heroku has a free tier as well. | You could add EngineYard in the mix - but i'd be inclined to use Heroku as my first choice, Dotcloud second (it's a newish product, and is very good but still in development) |
6,076,816 | We have a very simple function (We look something up from a third party database and return an answer. It's literally five lines of code.) We would like to offload this task from our main server because we expect a high volume of traffic for this one function and would like to optimize it.
We are thinking about testing the promise of many cloud/PaaS providers, where they handle scaling and performance responsibilities.
We're most interested in Rails environments, but are curious to hear experiences from others about any company in the space.
Here are the PaaS companies we found that supports Rails:
1) Heroku
2) DotCloud
3) Duostack
Questions:
1) Do you know of other Rails-specific companies? Also feel free to list non-Rails companies since we're interested in following other companies in case they eventually provide Rails support.
2) How has your experience been with these companies? | 2011/05/20 | [
"https://Stackoverflow.com/questions/6076816",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/144088/"
] | You could add EngineYard in the mix - but i'd be inclined to use Heroku as my first choice, Dotcloud second (it's a newish product, and is very good but still in development) | Just stumbled upon the question. There are similar ones around here. The problem is also: The PaaS scene is changing very quickly. New vendors are popping in every week or so.
Nowadays OpenShift from Red Hat might also be mentioned here as a Ruby PaaS.
*OFFTOPIC + shameless plug*: I have compiled a list of PHP PaaS here: <http://blog.fortrabbit.com/comparing-cloud-hosting-platforms/> |
6,076,816 | We have a very simple function (We look something up from a third party database and return an answer. It's literally five lines of code.) We would like to offload this task from our main server because we expect a high volume of traffic for this one function and would like to optimize it.
We are thinking about testing the promise of many cloud/PaaS providers, where they handle scaling and performance responsibilities.
We're most interested in Rails environments, but are curious to hear experiences from others about any company in the space.
Here are the PaaS companies we found that supports Rails:
1) Heroku
2) DotCloud
3) Duostack
Questions:
1) Do you know of other Rails-specific companies? Also feel free to list non-Rails companies since we're interested in following other companies in case they eventually provide Rails support.
2) How has your experience been with these companies? | 2011/05/20 | [
"https://Stackoverflow.com/questions/6076816",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/144088/"
] | Foreword and disclaimer: I work for DotCloud; so the following might be biased. You've been warned.
**DotCloud** could be interesting for you if you like the following features:
* run something else than Ruby (what about some Django or Pylons code talking with your SQL DB? Or even some PHP blog like WordPress or Drupal, using the same user authentication database?)
* experiment with databases like Redis or MongoDB, or background ruby workers, without paying for add-ons
* SSH access, crontab access (without requiring an add-on)
* cheaper workers (I didn't come up with this one; some of our users coming from the Heroku world told us that workers were insanely expensive there)
**Duostack** is indeed very nice if you want to mix specifically Rails and Node.js. I've been told that they had awesome auto-configuration facilities.
Finally, if you only plan to do Rails and nothing else, ever, you might as well stick with **Heroku** since they've been in that business for a while, and are probably more mature than the first two of the batch.
*Shameless plug:* DotCloud is offering a beta test drive; so if you want to see what it looks like, just subscribe to the beta and you will be quickly enough be able to see for yourself. Heroku has a free tier as well. | Just stumbled upon the question. There are similar ones around here. The problem is also: The PaaS scene is changing very quickly. New vendors are popping in every week or so.
Nowadays OpenShift from Red Hat might also be mentioned here as a Ruby PaaS.
*OFFTOPIC + shameless plug*: I have compiled a list of PHP PaaS here: <http://blog.fortrabbit.com/comparing-cloud-hosting-platforms/> |
6,076,816 | We have a very simple function (We look something up from a third party database and return an answer. It's literally five lines of code.) We would like to offload this task from our main server because we expect a high volume of traffic for this one function and would like to optimize it.
We are thinking about testing the promise of many cloud/PaaS providers, where they handle scaling and performance responsibilities.
We're most interested in Rails environments, but are curious to hear experiences from others about any company in the space.
Here are the PaaS companies we found that supports Rails:
1) Heroku
2) DotCloud
3) Duostack
Questions:
1) Do you know of other Rails-specific companies? Also feel free to list non-Rails companies since we're interested in following other companies in case they eventually provide Rails support.
2) How has your experience been with these companies? | 2011/05/20 | [
"https://Stackoverflow.com/questions/6076816",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/144088/"
] | Foreword and disclaimer: I work for DotCloud; so the following might be biased. You've been warned.
**DotCloud** could be interesting for you if you like the following features:
* run something else than Ruby (what about some Django or Pylons code talking with your SQL DB? Or even some PHP blog like WordPress or Drupal, using the same user authentication database?)
* experiment with databases like Redis or MongoDB, or background ruby workers, without paying for add-ons
* SSH access, crontab access (without requiring an add-on)
* cheaper workers (I didn't come up with this one; some of our users coming from the Heroku world told us that workers were insanely expensive there)
**Duostack** is indeed very nice if you want to mix specifically Rails and Node.js. I've been told that they had awesome auto-configuration facilities.
Finally, if you only plan to do Rails and nothing else, ever, you might as well stick with **Heroku** since they've been in that business for a while, and are probably more mature than the first two of the batch.
*Shameless plug:* DotCloud is offering a beta test drive; so if you want to see what it looks like, just subscribe to the beta and you will be quickly enough be able to see for yourself. Heroku has a free tier as well. | If you want more control over your app/servers or want to run it on any cloud or your own infrastructure without having to download/deploy anything, you can try Cloud 66 ([www.cloud66.com](http://www.cloud66.com))
Disclaimer: I work for Cloud 66 |
6,076,816 | We have a very simple function (We look something up from a third party database and return an answer. It's literally five lines of code.) We would like to offload this task from our main server because we expect a high volume of traffic for this one function and would like to optimize it.
We are thinking about testing the promise of many cloud/PaaS providers, where they handle scaling and performance responsibilities.
We're most interested in Rails environments, but are curious to hear experiences from others about any company in the space.
Here are the PaaS companies we found that supports Rails:
1) Heroku
2) DotCloud
3) Duostack
Questions:
1) Do you know of other Rails-specific companies? Also feel free to list non-Rails companies since we're interested in following other companies in case they eventually provide Rails support.
2) How has your experience been with these companies? | 2011/05/20 | [
"https://Stackoverflow.com/questions/6076816",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/144088/"
] | Foreword and disclaimer: I work for DotCloud; so the following might be biased. You've been warned.
**DotCloud** could be interesting for you if you like the following features:
* run something else than Ruby (what about some Django or Pylons code talking with your SQL DB? Or even some PHP blog like WordPress or Drupal, using the same user authentication database?)
* experiment with databases like Redis or MongoDB, or background ruby workers, without paying for add-ons
* SSH access, crontab access (without requiring an add-on)
* cheaper workers (I didn't come up with this one; some of our users coming from the Heroku world told us that workers were insanely expensive there)
**Duostack** is indeed very nice if you want to mix specifically Rails and Node.js. I've been told that they had awesome auto-configuration facilities.
Finally, if you only plan to do Rails and nothing else, ever, you might as well stick with **Heroku** since they've been in that business for a while, and are probably more mature than the first two of the batch.
*Shameless plug:* DotCloud is offering a beta test drive; so if you want to see what it looks like, just subscribe to the beta and you will be quickly enough be able to see for yourself. Heroku has a free tier as well. | A lot has changed on the scene since this question was asked. We recently looked into these services and settled on Heroku, but even more recently decided to continue managing my own deployments directly on EC2. Here are some points not mentioned in the other answers.
### Heroku
* Now supports much more than just ruby
* Has really great-looking support for PostgreSQL
* Uses LXC for process containers, like DotCloud
### DotCloud
* Is now Docker, and is putting a lot of manpower into developing [docker.io](http://docker.io)
* Doesn't have a free tier any more
I'm not sure if DotCloud is using Docker internally or not, since the docs say explicitly it isn't production-ready yet.
Our decision to stick with plain EC2 was motivated by the fact that it's cheaper and affords a lot more flexibility. For example, we use local-only http servers behind our public server to do some of our request processing, which doesn't really fit into the PaaS models out there. We would have had to reimplement all our back-end components as redis workers, and pay for them as additional dynos. The fact that Amazon RDS now supports PostgreSQL was also a compelling factor. Incidentally, Amazon has a full-stack PaaS offering as well, [Elastic Beanstalk](https://aws.amazon.com/elasticbeanstalk/). |
6,076,816 | We have a very simple function (We look something up from a third party database and return an answer. It's literally five lines of code.) We would like to offload this task from our main server because we expect a high volume of traffic for this one function and would like to optimize it.
We are thinking about testing the promise of many cloud/PaaS providers, where they handle scaling and performance responsibilities.
We're most interested in Rails environments, but are curious to hear experiences from others about any company in the space.
Here are the PaaS companies we found that supports Rails:
1) Heroku
2) DotCloud
3) Duostack
Questions:
1) Do you know of other Rails-specific companies? Also feel free to list non-Rails companies since we're interested in following other companies in case they eventually provide Rails support.
2) How has your experience been with these companies? | 2011/05/20 | [
"https://Stackoverflow.com/questions/6076816",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/144088/"
] | If you want more control over your app/servers or want to run it on any cloud or your own infrastructure without having to download/deploy anything, you can try Cloud 66 ([www.cloud66.com](http://www.cloud66.com))
Disclaimer: I work for Cloud 66 | Just stumbled upon the question. There are similar ones around here. The problem is also: The PaaS scene is changing very quickly. New vendors are popping in every week or so.
Nowadays OpenShift from Red Hat might also be mentioned here as a Ruby PaaS.
*OFFTOPIC + shameless plug*: I have compiled a list of PHP PaaS here: <http://blog.fortrabbit.com/comparing-cloud-hosting-platforms/> |
6,076,816 | We have a very simple function (We look something up from a third party database and return an answer. It's literally five lines of code.) We would like to offload this task from our main server because we expect a high volume of traffic for this one function and would like to optimize it.
We are thinking about testing the promise of many cloud/PaaS providers, where they handle scaling and performance responsibilities.
We're most interested in Rails environments, but are curious to hear experiences from others about any company in the space.
Here are the PaaS companies we found that supports Rails:
1) Heroku
2) DotCloud
3) Duostack
Questions:
1) Do you know of other Rails-specific companies? Also feel free to list non-Rails companies since we're interested in following other companies in case they eventually provide Rails support.
2) How has your experience been with these companies? | 2011/05/20 | [
"https://Stackoverflow.com/questions/6076816",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/144088/"
] | A lot has changed on the scene since this question was asked. We recently looked into these services and settled on Heroku, but even more recently decided to continue managing my own deployments directly on EC2. Here are some points not mentioned in the other answers.
### Heroku
* Now supports much more than just ruby
* Has really great-looking support for PostgreSQL
* Uses LXC for process containers, like DotCloud
### DotCloud
* Is now Docker, and is putting a lot of manpower into developing [docker.io](http://docker.io)
* Doesn't have a free tier any more
I'm not sure if DotCloud is using Docker internally or not, since the docs say explicitly it isn't production-ready yet.
Our decision to stick with plain EC2 was motivated by the fact that it's cheaper and affords a lot more flexibility. For example, we use local-only http servers behind our public server to do some of our request processing, which doesn't really fit into the PaaS models out there. We would have had to reimplement all our back-end components as redis workers, and pay for them as additional dynos. The fact that Amazon RDS now supports PostgreSQL was also a compelling factor. Incidentally, Amazon has a full-stack PaaS offering as well, [Elastic Beanstalk](https://aws.amazon.com/elasticbeanstalk/). | Just stumbled upon the question. There are similar ones around here. The problem is also: The PaaS scene is changing very quickly. New vendors are popping in every week or so.
Nowadays OpenShift from Red Hat might also be mentioned here as a Ruby PaaS.
*OFFTOPIC + shameless plug*: I have compiled a list of PHP PaaS here: <http://blog.fortrabbit.com/comparing-cloud-hosting-platforms/> |
475,056 | When inspecting the boards from electronics made in 1980s and earlier, one distinct feature is the extensive use of axial, electrolytic capacitors as power supply filter. Axial ceramic decoupling capacitors were used as well, to a lesser extent.
For example, this is a C64 motherboard.
[](https://i.stack.imgur.com/kmiKD.jpg)
Source: [Wikimedia Common](https://commons.wikimedia.org/wiki/File:C64_ASSY_NO_250425_motherboard_1984.jpg), by Gona.eu, license: CC BY-SA 3.0
This is a Tektronix 1720 vectorscope board.
[](https://i.stack.imgur.com/ZotIv.jpg)
Source: [Flickr](https://www.flickr.com/photos/qu1j0t3/26227821248/in/photolist-FXEruC-246GvGP-aqt7A-23ciWBv-pPokFc-qfZ3Js-CPE5n-21Nv7Xj-226SGjr-26kptAt-6nHnUL-q9dyX7-qqMduP-253heQR-q9nfJ4-YARsiH-qqMcKT-qov5kh-ptMXEL-q9kGc4-qrCffE-pu2oST-qov5yU-q9dCJf-ptMW7q-ptMXQ5-qqMcLp-pMpFrD-q9kF9x-pMbzrj-ptMXyo-q9kEYc-ptMYRU-ptN1EJ-qov5T1-qov7DL-qov7mw-q9dAaY-pu2tpt-q9etBC-q9dDFq-2i5QLWL-q9es8W-q9nbdk-q9kFND-q9naAP-ptMWNL-ptMYdu-ptMY9S-q9es23/), by Toby Thain, license: CC BY-NC 2.0
However, although they are still being manufactured, it seems that axial capacitors largely disappeared in most devices since the 90s. Almost none of electronic devices we commonly see have a single axial capacitor. And it's certain that one is going to find something similar to this in a modern device...
[](https://i.stack.imgur.com/nL8w3.jpg)
Source: [Wikimedia Common](https://commons.wikimedia.org/wiki/File:Tektronix_MDO4000_Teardown_(15845729350).jpg), by Dave Jones from Australia, license: CC BY 2.0
Question
--------
**Why did Axial Capacitors Fall Out of Use in the Industry?** I can imagine that axial capacitors were optimized for point-to-point wiring back in the pre-PCB era, not PCB assembly, and that the introduction of SMT was another shot. But it was just my imagination, backed by nothing. **What were the exact sequence of events and/or rationale that led to the disuse of axial capacitors?** | 2020/01/07 | [
"https://electronics.stackexchange.com/questions/475056",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/130447/"
] | PCB area.
Axials pre-dated PCBs, their construction was ideal for wiring to tag strips and valve bases, and they were adopted for PCBs because that's what was available.
Example of tag strip construction below.
(There WERE radial caps in the valve days : they were generally designed for chassis mounting via a ring clamp, and had tags rather than wire leads. The round object bottom centre is the base of one such capacitor)
[](https://i.stack.imgur.com/vWoSE.jpg)
It's actually quite surprising they lasted as long as they did alongside radials, into the 1980s.
Radials use much less PCB space, and standing axials on end is a poor compromise, with a long exposed lead (or the added assembly step of sleeving it) as well as being much less robust. | Probably the most important reason is difficulties in automated assembly;
[Wikipedia mentions this](https://en.wikipedia.org/wiki/Through-hole_technology#Axial_and_radial_leads). |
475,056 | When inspecting the boards from electronics made in 1980s and earlier, one distinct feature is the extensive use of axial, electrolytic capacitors as power supply filter. Axial ceramic decoupling capacitors were used as well, to a lesser extent.
For example, this is a C64 motherboard.
[](https://i.stack.imgur.com/kmiKD.jpg)
Source: [Wikimedia Common](https://commons.wikimedia.org/wiki/File:C64_ASSY_NO_250425_motherboard_1984.jpg), by Gona.eu, license: CC BY-SA 3.0
This is a Tektronix 1720 vectorscope board.
[](https://i.stack.imgur.com/ZotIv.jpg)
Source: [Flickr](https://www.flickr.com/photos/qu1j0t3/26227821248/in/photolist-FXEruC-246GvGP-aqt7A-23ciWBv-pPokFc-qfZ3Js-CPE5n-21Nv7Xj-226SGjr-26kptAt-6nHnUL-q9dyX7-qqMduP-253heQR-q9nfJ4-YARsiH-qqMcKT-qov5kh-ptMXEL-q9kGc4-qrCffE-pu2oST-qov5yU-q9dCJf-ptMW7q-ptMXQ5-qqMcLp-pMpFrD-q9kF9x-pMbzrj-ptMXyo-q9kEYc-ptMYRU-ptN1EJ-qov5T1-qov7DL-qov7mw-q9dAaY-pu2tpt-q9etBC-q9dDFq-2i5QLWL-q9es8W-q9nbdk-q9kFND-q9naAP-ptMWNL-ptMYdu-ptMY9S-q9es23/), by Toby Thain, license: CC BY-NC 2.0
However, although they are still being manufactured, it seems that axial capacitors largely disappeared in most devices since the 90s. Almost none of electronic devices we commonly see have a single axial capacitor. And it's certain that one is going to find something similar to this in a modern device...
[](https://i.stack.imgur.com/nL8w3.jpg)
Source: [Wikimedia Common](https://commons.wikimedia.org/wiki/File:Tektronix_MDO4000_Teardown_(15845729350).jpg), by Dave Jones from Australia, license: CC BY 2.0
Question
--------
**Why did Axial Capacitors Fall Out of Use in the Industry?** I can imagine that axial capacitors were optimized for point-to-point wiring back in the pre-PCB era, not PCB assembly, and that the introduction of SMT was another shot. But it was just my imagination, backed by nothing. **What were the exact sequence of events and/or rationale that led to the disuse of axial capacitors?** | 2020/01/07 | [
"https://electronics.stackexchange.com/questions/475056",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/130447/"
] | My recollection of that era was that the **selection**, **size** and **price** of axial leaded electrolytic capacitors was not competitive, so I used radial lead caps in some cases where axial leaded would have been better (production had to lay them down and add a dab of adhesive). You could not find low-leakage caps, for example.
Some parts, such as those used in crossover networks, may have been more popular in axial, but I was not involved that area at the time.
That was probably a side effect of demand. The radial types just take up significantly less PCB space.
Both were available in tape and reel or ammo box so I don't think automation was the issue. | Probably the most important reason is difficulties in automated assembly;
[Wikipedia mentions this](https://en.wikipedia.org/wiki/Through-hole_technology#Axial_and_radial_leads). |
475,056 | When inspecting the boards from electronics made in 1980s and earlier, one distinct feature is the extensive use of axial, electrolytic capacitors as power supply filter. Axial ceramic decoupling capacitors were used as well, to a lesser extent.
For example, this is a C64 motherboard.
[](https://i.stack.imgur.com/kmiKD.jpg)
Source: [Wikimedia Common](https://commons.wikimedia.org/wiki/File:C64_ASSY_NO_250425_motherboard_1984.jpg), by Gona.eu, license: CC BY-SA 3.0
This is a Tektronix 1720 vectorscope board.
[](https://i.stack.imgur.com/ZotIv.jpg)
Source: [Flickr](https://www.flickr.com/photos/qu1j0t3/26227821248/in/photolist-FXEruC-246GvGP-aqt7A-23ciWBv-pPokFc-qfZ3Js-CPE5n-21Nv7Xj-226SGjr-26kptAt-6nHnUL-q9dyX7-qqMduP-253heQR-q9nfJ4-YARsiH-qqMcKT-qov5kh-ptMXEL-q9kGc4-qrCffE-pu2oST-qov5yU-q9dCJf-ptMW7q-ptMXQ5-qqMcLp-pMpFrD-q9kF9x-pMbzrj-ptMXyo-q9kEYc-ptMYRU-ptN1EJ-qov5T1-qov7DL-qov7mw-q9dAaY-pu2tpt-q9etBC-q9dDFq-2i5QLWL-q9es8W-q9nbdk-q9kFND-q9naAP-ptMWNL-ptMYdu-ptMY9S-q9es23/), by Toby Thain, license: CC BY-NC 2.0
However, although they are still being manufactured, it seems that axial capacitors largely disappeared in most devices since the 90s. Almost none of electronic devices we commonly see have a single axial capacitor. And it's certain that one is going to find something similar to this in a modern device...
[](https://i.stack.imgur.com/nL8w3.jpg)
Source: [Wikimedia Common](https://commons.wikimedia.org/wiki/File:Tektronix_MDO4000_Teardown_(15845729350).jpg), by Dave Jones from Australia, license: CC BY 2.0
Question
--------
**Why did Axial Capacitors Fall Out of Use in the Industry?** I can imagine that axial capacitors were optimized for point-to-point wiring back in the pre-PCB era, not PCB assembly, and that the introduction of SMT was another shot. But it was just my imagination, backed by nothing. **What were the exact sequence of events and/or rationale that led to the disuse of axial capacitors?** | 2020/01/07 | [
"https://electronics.stackexchange.com/questions/475056",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/130447/"
] | Single-sided PCBs frequently required the use of wire links to bridge over other tracks on the board. With a suitable circuit layout, the use of axial capacitors (rather than radial) could be used to allow tracks to cross each other, removing the need to use a separate wire link. Axial resistors offer the same capability, of course.
With double (and multilayer) PCBs, it's possible to cross tracks with the use of vias between PCB layers instead. This doesn't need the placement and fitting of any through-hole components, so the flexibility offered by axial capacitors was reduced somewhat.
Axial capacitors also have a disadvantage of having a large footprint on the PCB. A radial capacitor needs far less space. Take this photo of a PC motherboard as an example; how much more space would be needed for these capacitors if axial ones had been used instead of radial?
[](https://i.stack.imgur.com/VowF2.jpg) | Probably the most important reason is difficulties in automated assembly;
[Wikipedia mentions this](https://en.wikipedia.org/wiki/Through-hole_technology#Axial_and_radial_leads). |
475,056 | When inspecting the boards from electronics made in 1980s and earlier, one distinct feature is the extensive use of axial, electrolytic capacitors as power supply filter. Axial ceramic decoupling capacitors were used as well, to a lesser extent.
For example, this is a C64 motherboard.
[](https://i.stack.imgur.com/kmiKD.jpg)
Source: [Wikimedia Common](https://commons.wikimedia.org/wiki/File:C64_ASSY_NO_250425_motherboard_1984.jpg), by Gona.eu, license: CC BY-SA 3.0
This is a Tektronix 1720 vectorscope board.
[](https://i.stack.imgur.com/ZotIv.jpg)
Source: [Flickr](https://www.flickr.com/photos/qu1j0t3/26227821248/in/photolist-FXEruC-246GvGP-aqt7A-23ciWBv-pPokFc-qfZ3Js-CPE5n-21Nv7Xj-226SGjr-26kptAt-6nHnUL-q9dyX7-qqMduP-253heQR-q9nfJ4-YARsiH-qqMcKT-qov5kh-ptMXEL-q9kGc4-qrCffE-pu2oST-qov5yU-q9dCJf-ptMW7q-ptMXQ5-qqMcLp-pMpFrD-q9kF9x-pMbzrj-ptMXyo-q9kEYc-ptMYRU-ptN1EJ-qov5T1-qov7DL-qov7mw-q9dAaY-pu2tpt-q9etBC-q9dDFq-2i5QLWL-q9es8W-q9nbdk-q9kFND-q9naAP-ptMWNL-ptMYdu-ptMY9S-q9es23/), by Toby Thain, license: CC BY-NC 2.0
However, although they are still being manufactured, it seems that axial capacitors largely disappeared in most devices since the 90s. Almost none of electronic devices we commonly see have a single axial capacitor. And it's certain that one is going to find something similar to this in a modern device...
[](https://i.stack.imgur.com/nL8w3.jpg)
Source: [Wikimedia Common](https://commons.wikimedia.org/wiki/File:Tektronix_MDO4000_Teardown_(15845729350).jpg), by Dave Jones from Australia, license: CC BY 2.0
Question
--------
**Why did Axial Capacitors Fall Out of Use in the Industry?** I can imagine that axial capacitors were optimized for point-to-point wiring back in the pre-PCB era, not PCB assembly, and that the introduction of SMT was another shot. But it was just my imagination, backed by nothing. **What were the exact sequence of events and/or rationale that led to the disuse of axial capacitors?** | 2020/01/07 | [
"https://electronics.stackexchange.com/questions/475056",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/130447/"
] | Probably the most important reason is difficulties in automated assembly;
[Wikipedia mentions this](https://en.wikipedia.org/wiki/Through-hole_technology#Axial_and_radial_leads). | One very important reason is when a long lead reach between pcb points is necessary. Probably not seen much today,but in the days of transistor radios this was quite common. |
475,056 | When inspecting the boards from electronics made in 1980s and earlier, one distinct feature is the extensive use of axial, electrolytic capacitors as power supply filter. Axial ceramic decoupling capacitors were used as well, to a lesser extent.
For example, this is a C64 motherboard.
[](https://i.stack.imgur.com/kmiKD.jpg)
Source: [Wikimedia Common](https://commons.wikimedia.org/wiki/File:C64_ASSY_NO_250425_motherboard_1984.jpg), by Gona.eu, license: CC BY-SA 3.0
This is a Tektronix 1720 vectorscope board.
[](https://i.stack.imgur.com/ZotIv.jpg)
Source: [Flickr](https://www.flickr.com/photos/qu1j0t3/26227821248/in/photolist-FXEruC-246GvGP-aqt7A-23ciWBv-pPokFc-qfZ3Js-CPE5n-21Nv7Xj-226SGjr-26kptAt-6nHnUL-q9dyX7-qqMduP-253heQR-q9nfJ4-YARsiH-qqMcKT-qov5kh-ptMXEL-q9kGc4-qrCffE-pu2oST-qov5yU-q9dCJf-ptMW7q-ptMXQ5-qqMcLp-pMpFrD-q9kF9x-pMbzrj-ptMXyo-q9kEYc-ptMYRU-ptN1EJ-qov5T1-qov7DL-qov7mw-q9dAaY-pu2tpt-q9etBC-q9dDFq-2i5QLWL-q9es8W-q9nbdk-q9kFND-q9naAP-ptMWNL-ptMYdu-ptMY9S-q9es23/), by Toby Thain, license: CC BY-NC 2.0
However, although they are still being manufactured, it seems that axial capacitors largely disappeared in most devices since the 90s. Almost none of electronic devices we commonly see have a single axial capacitor. And it's certain that one is going to find something similar to this in a modern device...
[](https://i.stack.imgur.com/nL8w3.jpg)
Source: [Wikimedia Common](https://commons.wikimedia.org/wiki/File:Tektronix_MDO4000_Teardown_(15845729350).jpg), by Dave Jones from Australia, license: CC BY 2.0
Question
--------
**Why did Axial Capacitors Fall Out of Use in the Industry?** I can imagine that axial capacitors were optimized for point-to-point wiring back in the pre-PCB era, not PCB assembly, and that the introduction of SMT was another shot. But it was just my imagination, backed by nothing. **What were the exact sequence of events and/or rationale that led to the disuse of axial capacitors?** | 2020/01/07 | [
"https://electronics.stackexchange.com/questions/475056",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/130447/"
] | PCB area.
Axials pre-dated PCBs, their construction was ideal for wiring to tag strips and valve bases, and they were adopted for PCBs because that's what was available.
Example of tag strip construction below.
(There WERE radial caps in the valve days : they were generally designed for chassis mounting via a ring clamp, and had tags rather than wire leads. The round object bottom centre is the base of one such capacitor)
[](https://i.stack.imgur.com/vWoSE.jpg)
It's actually quite surprising they lasted as long as they did alongside radials, into the 1980s.
Radials use much less PCB space, and standing axials on end is a poor compromise, with a long exposed lead (or the added assembly step of sleeving it) as well as being much less robust. | My recollection of that era was that the **selection**, **size** and **price** of axial leaded electrolytic capacitors was not competitive, so I used radial lead caps in some cases where axial leaded would have been better (production had to lay them down and add a dab of adhesive). You could not find low-leakage caps, for example.
Some parts, such as those used in crossover networks, may have been more popular in axial, but I was not involved that area at the time.
That was probably a side effect of demand. The radial types just take up significantly less PCB space.
Both were available in tape and reel or ammo box so I don't think automation was the issue. |
475,056 | When inspecting the boards from electronics made in 1980s and earlier, one distinct feature is the extensive use of axial, electrolytic capacitors as power supply filter. Axial ceramic decoupling capacitors were used as well, to a lesser extent.
For example, this is a C64 motherboard.
[](https://i.stack.imgur.com/kmiKD.jpg)
Source: [Wikimedia Common](https://commons.wikimedia.org/wiki/File:C64_ASSY_NO_250425_motherboard_1984.jpg), by Gona.eu, license: CC BY-SA 3.0
This is a Tektronix 1720 vectorscope board.
[](https://i.stack.imgur.com/ZotIv.jpg)
Source: [Flickr](https://www.flickr.com/photos/qu1j0t3/26227821248/in/photolist-FXEruC-246GvGP-aqt7A-23ciWBv-pPokFc-qfZ3Js-CPE5n-21Nv7Xj-226SGjr-26kptAt-6nHnUL-q9dyX7-qqMduP-253heQR-q9nfJ4-YARsiH-qqMcKT-qov5kh-ptMXEL-q9kGc4-qrCffE-pu2oST-qov5yU-q9dCJf-ptMW7q-ptMXQ5-qqMcLp-pMpFrD-q9kF9x-pMbzrj-ptMXyo-q9kEYc-ptMYRU-ptN1EJ-qov5T1-qov7DL-qov7mw-q9dAaY-pu2tpt-q9etBC-q9dDFq-2i5QLWL-q9es8W-q9nbdk-q9kFND-q9naAP-ptMWNL-ptMYdu-ptMY9S-q9es23/), by Toby Thain, license: CC BY-NC 2.0
However, although they are still being manufactured, it seems that axial capacitors largely disappeared in most devices since the 90s. Almost none of electronic devices we commonly see have a single axial capacitor. And it's certain that one is going to find something similar to this in a modern device...
[](https://i.stack.imgur.com/nL8w3.jpg)
Source: [Wikimedia Common](https://commons.wikimedia.org/wiki/File:Tektronix_MDO4000_Teardown_(15845729350).jpg), by Dave Jones from Australia, license: CC BY 2.0
Question
--------
**Why did Axial Capacitors Fall Out of Use in the Industry?** I can imagine that axial capacitors were optimized for point-to-point wiring back in the pre-PCB era, not PCB assembly, and that the introduction of SMT was another shot. But it was just my imagination, backed by nothing. **What were the exact sequence of events and/or rationale that led to the disuse of axial capacitors?** | 2020/01/07 | [
"https://electronics.stackexchange.com/questions/475056",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/130447/"
] | PCB area.
Axials pre-dated PCBs, their construction was ideal for wiring to tag strips and valve bases, and they were adopted for PCBs because that's what was available.
Example of tag strip construction below.
(There WERE radial caps in the valve days : they were generally designed for chassis mounting via a ring clamp, and had tags rather than wire leads. The round object bottom centre is the base of one such capacitor)
[](https://i.stack.imgur.com/vWoSE.jpg)
It's actually quite surprising they lasted as long as they did alongside radials, into the 1980s.
Radials use much less PCB space, and standing axials on end is a poor compromise, with a long exposed lead (or the added assembly step of sleeving it) as well as being much less robust. | Single-sided PCBs frequently required the use of wire links to bridge over other tracks on the board. With a suitable circuit layout, the use of axial capacitors (rather than radial) could be used to allow tracks to cross each other, removing the need to use a separate wire link. Axial resistors offer the same capability, of course.
With double (and multilayer) PCBs, it's possible to cross tracks with the use of vias between PCB layers instead. This doesn't need the placement and fitting of any through-hole components, so the flexibility offered by axial capacitors was reduced somewhat.
Axial capacitors also have a disadvantage of having a large footprint on the PCB. A radial capacitor needs far less space. Take this photo of a PC motherboard as an example; how much more space would be needed for these capacitors if axial ones had been used instead of radial?
[](https://i.stack.imgur.com/VowF2.jpg) |
475,056 | When inspecting the boards from electronics made in 1980s and earlier, one distinct feature is the extensive use of axial, electrolytic capacitors as power supply filter. Axial ceramic decoupling capacitors were used as well, to a lesser extent.
For example, this is a C64 motherboard.
[](https://i.stack.imgur.com/kmiKD.jpg)
Source: [Wikimedia Common](https://commons.wikimedia.org/wiki/File:C64_ASSY_NO_250425_motherboard_1984.jpg), by Gona.eu, license: CC BY-SA 3.0
This is a Tektronix 1720 vectorscope board.
[](https://i.stack.imgur.com/ZotIv.jpg)
Source: [Flickr](https://www.flickr.com/photos/qu1j0t3/26227821248/in/photolist-FXEruC-246GvGP-aqt7A-23ciWBv-pPokFc-qfZ3Js-CPE5n-21Nv7Xj-226SGjr-26kptAt-6nHnUL-q9dyX7-qqMduP-253heQR-q9nfJ4-YARsiH-qqMcKT-qov5kh-ptMXEL-q9kGc4-qrCffE-pu2oST-qov5yU-q9dCJf-ptMW7q-ptMXQ5-qqMcLp-pMpFrD-q9kF9x-pMbzrj-ptMXyo-q9kEYc-ptMYRU-ptN1EJ-qov5T1-qov7DL-qov7mw-q9dAaY-pu2tpt-q9etBC-q9dDFq-2i5QLWL-q9es8W-q9nbdk-q9kFND-q9naAP-ptMWNL-ptMYdu-ptMY9S-q9es23/), by Toby Thain, license: CC BY-NC 2.0
However, although they are still being manufactured, it seems that axial capacitors largely disappeared in most devices since the 90s. Almost none of electronic devices we commonly see have a single axial capacitor. And it's certain that one is going to find something similar to this in a modern device...
[](https://i.stack.imgur.com/nL8w3.jpg)
Source: [Wikimedia Common](https://commons.wikimedia.org/wiki/File:Tektronix_MDO4000_Teardown_(15845729350).jpg), by Dave Jones from Australia, license: CC BY 2.0
Question
--------
**Why did Axial Capacitors Fall Out of Use in the Industry?** I can imagine that axial capacitors were optimized for point-to-point wiring back in the pre-PCB era, not PCB assembly, and that the introduction of SMT was another shot. But it was just my imagination, backed by nothing. **What were the exact sequence of events and/or rationale that led to the disuse of axial capacitors?** | 2020/01/07 | [
"https://electronics.stackexchange.com/questions/475056",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/130447/"
] | PCB area.
Axials pre-dated PCBs, their construction was ideal for wiring to tag strips and valve bases, and they were adopted for PCBs because that's what was available.
Example of tag strip construction below.
(There WERE radial caps in the valve days : they were generally designed for chassis mounting via a ring clamp, and had tags rather than wire leads. The round object bottom centre is the base of one such capacitor)
[](https://i.stack.imgur.com/vWoSE.jpg)
It's actually quite surprising they lasted as long as they did alongside radials, into the 1980s.
Radials use much less PCB space, and standing axials on end is a poor compromise, with a long exposed lead (or the added assembly step of sleeving it) as well as being much less robust. | One very important reason is when a long lead reach between pcb points is necessary. Probably not seen much today,but in the days of transistor radios this was quite common. |
475,056 | When inspecting the boards from electronics made in 1980s and earlier, one distinct feature is the extensive use of axial, electrolytic capacitors as power supply filter. Axial ceramic decoupling capacitors were used as well, to a lesser extent.
For example, this is a C64 motherboard.
[](https://i.stack.imgur.com/kmiKD.jpg)
Source: [Wikimedia Common](https://commons.wikimedia.org/wiki/File:C64_ASSY_NO_250425_motherboard_1984.jpg), by Gona.eu, license: CC BY-SA 3.0
This is a Tektronix 1720 vectorscope board.
[](https://i.stack.imgur.com/ZotIv.jpg)
Source: [Flickr](https://www.flickr.com/photos/qu1j0t3/26227821248/in/photolist-FXEruC-246GvGP-aqt7A-23ciWBv-pPokFc-qfZ3Js-CPE5n-21Nv7Xj-226SGjr-26kptAt-6nHnUL-q9dyX7-qqMduP-253heQR-q9nfJ4-YARsiH-qqMcKT-qov5kh-ptMXEL-q9kGc4-qrCffE-pu2oST-qov5yU-q9dCJf-ptMW7q-ptMXQ5-qqMcLp-pMpFrD-q9kF9x-pMbzrj-ptMXyo-q9kEYc-ptMYRU-ptN1EJ-qov5T1-qov7DL-qov7mw-q9dAaY-pu2tpt-q9etBC-q9dDFq-2i5QLWL-q9es8W-q9nbdk-q9kFND-q9naAP-ptMWNL-ptMYdu-ptMY9S-q9es23/), by Toby Thain, license: CC BY-NC 2.0
However, although they are still being manufactured, it seems that axial capacitors largely disappeared in most devices since the 90s. Almost none of electronic devices we commonly see have a single axial capacitor. And it's certain that one is going to find something similar to this in a modern device...
[](https://i.stack.imgur.com/nL8w3.jpg)
Source: [Wikimedia Common](https://commons.wikimedia.org/wiki/File:Tektronix_MDO4000_Teardown_(15845729350).jpg), by Dave Jones from Australia, license: CC BY 2.0
Question
--------
**Why did Axial Capacitors Fall Out of Use in the Industry?** I can imagine that axial capacitors were optimized for point-to-point wiring back in the pre-PCB era, not PCB assembly, and that the introduction of SMT was another shot. But it was just my imagination, backed by nothing. **What were the exact sequence of events and/or rationale that led to the disuse of axial capacitors?** | 2020/01/07 | [
"https://electronics.stackexchange.com/questions/475056",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/130447/"
] | My recollection of that era was that the **selection**, **size** and **price** of axial leaded electrolytic capacitors was not competitive, so I used radial lead caps in some cases where axial leaded would have been better (production had to lay them down and add a dab of adhesive). You could not find low-leakage caps, for example.
Some parts, such as those used in crossover networks, may have been more popular in axial, but I was not involved that area at the time.
That was probably a side effect of demand. The radial types just take up significantly less PCB space.
Both were available in tape and reel or ammo box so I don't think automation was the issue. | One very important reason is when a long lead reach between pcb points is necessary. Probably not seen much today,but in the days of transistor radios this was quite common. |
475,056 | When inspecting the boards from electronics made in 1980s and earlier, one distinct feature is the extensive use of axial, electrolytic capacitors as power supply filter. Axial ceramic decoupling capacitors were used as well, to a lesser extent.
For example, this is a C64 motherboard.
[](https://i.stack.imgur.com/kmiKD.jpg)
Source: [Wikimedia Common](https://commons.wikimedia.org/wiki/File:C64_ASSY_NO_250425_motherboard_1984.jpg), by Gona.eu, license: CC BY-SA 3.0
This is a Tektronix 1720 vectorscope board.
[](https://i.stack.imgur.com/ZotIv.jpg)
Source: [Flickr](https://www.flickr.com/photos/qu1j0t3/26227821248/in/photolist-FXEruC-246GvGP-aqt7A-23ciWBv-pPokFc-qfZ3Js-CPE5n-21Nv7Xj-226SGjr-26kptAt-6nHnUL-q9dyX7-qqMduP-253heQR-q9nfJ4-YARsiH-qqMcKT-qov5kh-ptMXEL-q9kGc4-qrCffE-pu2oST-qov5yU-q9dCJf-ptMW7q-ptMXQ5-qqMcLp-pMpFrD-q9kF9x-pMbzrj-ptMXyo-q9kEYc-ptMYRU-ptN1EJ-qov5T1-qov7DL-qov7mw-q9dAaY-pu2tpt-q9etBC-q9dDFq-2i5QLWL-q9es8W-q9nbdk-q9kFND-q9naAP-ptMWNL-ptMYdu-ptMY9S-q9es23/), by Toby Thain, license: CC BY-NC 2.0
However, although they are still being manufactured, it seems that axial capacitors largely disappeared in most devices since the 90s. Almost none of electronic devices we commonly see have a single axial capacitor. And it's certain that one is going to find something similar to this in a modern device...
[](https://i.stack.imgur.com/nL8w3.jpg)
Source: [Wikimedia Common](https://commons.wikimedia.org/wiki/File:Tektronix_MDO4000_Teardown_(15845729350).jpg), by Dave Jones from Australia, license: CC BY 2.0
Question
--------
**Why did Axial Capacitors Fall Out of Use in the Industry?** I can imagine that axial capacitors were optimized for point-to-point wiring back in the pre-PCB era, not PCB assembly, and that the introduction of SMT was another shot. But it was just my imagination, backed by nothing. **What were the exact sequence of events and/or rationale that led to the disuse of axial capacitors?** | 2020/01/07 | [
"https://electronics.stackexchange.com/questions/475056",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/130447/"
] | Single-sided PCBs frequently required the use of wire links to bridge over other tracks on the board. With a suitable circuit layout, the use of axial capacitors (rather than radial) could be used to allow tracks to cross each other, removing the need to use a separate wire link. Axial resistors offer the same capability, of course.
With double (and multilayer) PCBs, it's possible to cross tracks with the use of vias between PCB layers instead. This doesn't need the placement and fitting of any through-hole components, so the flexibility offered by axial capacitors was reduced somewhat.
Axial capacitors also have a disadvantage of having a large footprint on the PCB. A radial capacitor needs far less space. Take this photo of a PC motherboard as an example; how much more space would be needed for these capacitors if axial ones had been used instead of radial?
[](https://i.stack.imgur.com/VowF2.jpg) | One very important reason is when a long lead reach between pcb points is necessary. Probably not seen much today,but in the days of transistor radios this was quite common. |
18,569,011 | I have a shopping cart application that contains users, accounts, orders, order lines etc entities.
Many of my entities belong to the account entity e.g. an account has many orders, an order has many order lines and an order line has as many-to-many shipments relationship. The account also has many users who can view the account's child entities.
The documentation recommends keeping entity groups no larger than a single user's worth of data: <https://developers.google.com/appengine/docs/python/datastore/entities>
I'm concerned that an entity group for an account could grow to a size which becomes unscalable. An account could grow to 100,000 orders with hundreds of thousands of child entities.
I have two questions:
1.) If I don't use ancestors do I simply have to accept that if one user edits an entity it may not be updated for a few seconds?
2.) If I do use ancestors, what will happen if an account has many users all creating/editing/deleting within the same entity group throughout the day? Will some transactions get blocked? | 2013/09/02 | [
"https://Stackoverflow.com/questions/18569011",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/2739023/"
] | Seems like the entity group here should be the order plus its items, not the account.
There is a limit of one update per second per entity group, so if you defined the group at the account level and you do have multiple users updating a single user constantly, some will fail. That's much less likely to happen if you define it as the order.
I would however strongly recommend that you do use an entity group for the order itself. You definitely wouldn't want there to be possible discrepancies in what the user sees - or worse, pays for - within a single order.
The only issue with doing things this way is that a new order might not be shown in the list of orders for an account immediately after it is created. To get round that you might use memcache, or potentially have a separate entity storing the list of orders for the user with a manually-specified key that you can get directly rather than querying - eg using the customer's account number as the key name. Since gets are guaranteed to be consistent, this would always be up to date. | 1. Yes, but eventual consistency affects only queries. If you edit the data and then GET it, the changes will be visible.
2. No, there is no mention of size limitations or transaction blocking on entity groups mentioned in the docs. The limitation that applies is write throughput per entity group: docs state a limit of 1 write/second per entity group (in practice I see about 5 writes/sec). But this should not be an issue if you design your entity group to be per-user. |
32,744 | In *Edge of Tomorrow* we learn from Cage's and Rita's experience, that when covered in the Alpha's blood, one can inherit the aliens' ability to reset the day.
The sub-question is - when this occurs, do the mimics retain the ability? If so, in my opinion Cage was lucky he changed his route after his first death, since the Alpha would remember how it got killed and adapt accordingly. The fact that the aliens had a lot more experience using this technique could mean that the "early", untrained Cage would be quickly drained of his blood still on the battlefield.
But - when trained and sufficiently experienced - what would happen if he decided to attack one of the Alphas again - for their blood, to "infect" others with the power, for example Rita or his pals from J Squad? Was it possible to create even a whole unit of day-resetting soldiers? Cage knew the location of at least two Alphas - the first one he killed with the claymore, and the second at the dam.
Could the Alphas still be confronted in their original locations? If so - is it possible to kill one Alpha multiple times (my guess is that it would adapt its strategy to not get killed or simply do not go in the location it got killed - that means if they still had their power)? Would it be a risk worth taking? | 2015/03/31 | [
"https://movies.stackexchange.com/questions/32744",
"https://movies.stackexchange.com",
"https://movies.stackexchange.com/users/20075/"
] | We are constantly told that Cage has become the Alpha. At no point in the loops, do we see the Alpha on the beach again. Further more, when Cage kills the Omega, absorbing it's blood and power, the Omega does not survive the reset. So we can logically assume that that Alpha didn't survive it either.
Cage could not fight that same Alpha as it no longer exists in time. Cage became that Alpha.
The second Alpha is very remote, and since it was a trap, there is no reason for Cage to ever travel all the way to Germany from France again. If he could take that Alphas power is debatable but not addressed in the film.
But the film does state that J Squad must "take one for the team" and let themselves die by the Alphas hand, otherwise they risk killing it and the Mimic resetting and learning what they planned. The risk is massive, and there would be no guarantee one of them getting the Alpha Blood Power on them before the reset.
As for the Mimic learning from the events, we can see they do not, from one to the next loop. It takes a unknown amount of loops for them to catch on, unlike Cage whom learns immediately. | Allow me to explain what seems most likely to me:
At the moment at which the day is reset, the day that was in progress ceases to exist. So, assuming that some subjects perish upon contact with the blood of the alpha, which is obviously corrosive and venomous, at the moment the first subject reset the day, the other subjects would cease to exist and only the first to die would retain the power. If no subjects perish, all I can assume is that each subject will simultaneously live through a string of days in which all other subjects had not yet received the power...
...but that's confusing, so I'm most likely wrong. |
32,744 | In *Edge of Tomorrow* we learn from Cage's and Rita's experience, that when covered in the Alpha's blood, one can inherit the aliens' ability to reset the day.
The sub-question is - when this occurs, do the mimics retain the ability? If so, in my opinion Cage was lucky he changed his route after his first death, since the Alpha would remember how it got killed and adapt accordingly. The fact that the aliens had a lot more experience using this technique could mean that the "early", untrained Cage would be quickly drained of his blood still on the battlefield.
But - when trained and sufficiently experienced - what would happen if he decided to attack one of the Alphas again - for their blood, to "infect" others with the power, for example Rita or his pals from J Squad? Was it possible to create even a whole unit of day-resetting soldiers? Cage knew the location of at least two Alphas - the first one he killed with the claymore, and the second at the dam.
Could the Alphas still be confronted in their original locations? If so - is it possible to kill one Alpha multiple times (my guess is that it would adapt its strategy to not get killed or simply do not go in the location it got killed - that means if they still had their power)? Would it be a risk worth taking? | 2015/03/31 | [
"https://movies.stackexchange.com/questions/32744",
"https://movies.stackexchange.com",
"https://movies.stackexchange.com/users/20075/"
] | We are constantly told that Cage has become the Alpha. At no point in the loops, do we see the Alpha on the beach again. Further more, when Cage kills the Omega, absorbing it's blood and power, the Omega does not survive the reset. So we can logically assume that that Alpha didn't survive it either.
Cage could not fight that same Alpha as it no longer exists in time. Cage became that Alpha.
The second Alpha is very remote, and since it was a trap, there is no reason for Cage to ever travel all the way to Germany from France again. If he could take that Alphas power is debatable but not addressed in the film.
But the film does state that J Squad must "take one for the team" and let themselves die by the Alphas hand, otherwise they risk killing it and the Mimic resetting and learning what they planned. The risk is massive, and there would be no guarantee one of them getting the Alpha Blood Power on them before the reset.
As for the Mimic learning from the events, we can see they do not, from one to the next loop. It takes a unknown amount of loops for them to catch on, unlike Cage whom learns immediately. | From what I understand, the Alphas do not retain the ability to reset the day and the Omega can no longer remember what happened anymore. Whenever Cage died, he activated the Omega's automatic response to reset the day, but only Cage would remember what had happened. I think that the Omega may have sensed that it was losing control because Alphas may have been getting killed without the day being reset. But the director left it pretty ambiguous about how the Omega knew it was losing control. I think it may have just set up the trap at the dam already, and just tried to send out the fake visions to whatever else was connected to its mind, even though it couldn't pinpoint where that entity (Cage) was. If it could have pinpointed Cage, I assume it would have just found Cage and taken his blood as soon as he landed on the beach the second time.
I think that since the Alphas didn't have the power anymore, it wouldn't be able for anyone else to get the power from their blood. Maybe if Cage bled a lot on someone it would work - we know Rita tried to pass it on to others, but she never said whether she tried bleeding on other people. We only know that she tried sex. If indeed the power could be passed on, I would think that the power would only be possessed by one person at a time. It seems like only one being can have the power at a time, since once Cage acquired it the Mimic collective was no longer in control of it (beyond automatic responses triggered by Cage). But a lot is left unexplained, this part is just speculation. |
32,744 | In *Edge of Tomorrow* we learn from Cage's and Rita's experience, that when covered in the Alpha's blood, one can inherit the aliens' ability to reset the day.
The sub-question is - when this occurs, do the mimics retain the ability? If so, in my opinion Cage was lucky he changed his route after his first death, since the Alpha would remember how it got killed and adapt accordingly. The fact that the aliens had a lot more experience using this technique could mean that the "early", untrained Cage would be quickly drained of his blood still on the battlefield.
But - when trained and sufficiently experienced - what would happen if he decided to attack one of the Alphas again - for their blood, to "infect" others with the power, for example Rita or his pals from J Squad? Was it possible to create even a whole unit of day-resetting soldiers? Cage knew the location of at least two Alphas - the first one he killed with the claymore, and the second at the dam.
Could the Alphas still be confronted in their original locations? If so - is it possible to kill one Alpha multiple times (my guess is that it would adapt its strategy to not get killed or simply do not go in the location it got killed - that means if they still had their power)? Would it be a risk worth taking? | 2015/03/31 | [
"https://movies.stackexchange.com/questions/32744",
"https://movies.stackexchange.com",
"https://movies.stackexchange.com/users/20075/"
] | We are constantly told that Cage has become the Alpha. At no point in the loops, do we see the Alpha on the beach again. Further more, when Cage kills the Omega, absorbing it's blood and power, the Omega does not survive the reset. So we can logically assume that that Alpha didn't survive it either.
Cage could not fight that same Alpha as it no longer exists in time. Cage became that Alpha.
The second Alpha is very remote, and since it was a trap, there is no reason for Cage to ever travel all the way to Germany from France again. If he could take that Alphas power is debatable but not addressed in the film.
But the film does state that J Squad must "take one for the team" and let themselves die by the Alphas hand, otherwise they risk killing it and the Mimic resetting and learning what they planned. The risk is massive, and there would be no guarantee one of them getting the Alpha Blood Power on them before the reset.
As for the Mimic learning from the events, we can see they do not, from one to the next loop. It takes a unknown amount of loops for them to catch on, unlike Cage whom learns immediately. | I'll try to give you an answer from my understanding of the movie:
* I do not think that the aliens knew right away that Cage got the ability, his visions leading him to the trap in the damn did not occur after killed the Alpha.
* Alphas are the strongest type, Cage was lucky to kill one (well, it was in the script) so killing one again is harder avoiding them and coping on it's own.
* The idea it's to kill the "brain", killing an Alpha would reset the day, there is no logical point in going after them.
* And your idea of having more people with the power to reset the day has some flaws: there is a chance that the Alpha wins and Cage looses his ability, there will always be a weaker person in the team that will reset the day even if others can continue...
Hope this helps you. |
32,744 | In *Edge of Tomorrow* we learn from Cage's and Rita's experience, that when covered in the Alpha's blood, one can inherit the aliens' ability to reset the day.
The sub-question is - when this occurs, do the mimics retain the ability? If so, in my opinion Cage was lucky he changed his route after his first death, since the Alpha would remember how it got killed and adapt accordingly. The fact that the aliens had a lot more experience using this technique could mean that the "early", untrained Cage would be quickly drained of his blood still on the battlefield.
But - when trained and sufficiently experienced - what would happen if he decided to attack one of the Alphas again - for their blood, to "infect" others with the power, for example Rita or his pals from J Squad? Was it possible to create even a whole unit of day-resetting soldiers? Cage knew the location of at least two Alphas - the first one he killed with the claymore, and the second at the dam.
Could the Alphas still be confronted in their original locations? If so - is it possible to kill one Alpha multiple times (my guess is that it would adapt its strategy to not get killed or simply do not go in the location it got killed - that means if they still had their power)? Would it be a risk worth taking? | 2015/03/31 | [
"https://movies.stackexchange.com/questions/32744",
"https://movies.stackexchange.com",
"https://movies.stackexchange.com/users/20075/"
] | We are constantly told that Cage has become the Alpha. At no point in the loops, do we see the Alpha on the beach again. Further more, when Cage kills the Omega, absorbing it's blood and power, the Omega does not survive the reset. So we can logically assume that that Alpha didn't survive it either.
Cage could not fight that same Alpha as it no longer exists in time. Cage became that Alpha.
The second Alpha is very remote, and since it was a trap, there is no reason for Cage to ever travel all the way to Germany from France again. If he could take that Alphas power is debatable but not addressed in the film.
But the film does state that J Squad must "take one for the team" and let themselves die by the Alphas hand, otherwise they risk killing it and the Mimic resetting and learning what they planned. The risk is massive, and there would be no guarantee one of them getting the Alpha Blood Power on them before the reset.
As for the Mimic learning from the events, we can see they do not, from one to the next loop. It takes a unknown amount of loops for them to catch on, unlike Cage whom learns immediately. | IIRC the thing is different: Alphas are very important to the Omega. So: whenever an Alpha is killed, the omega resets the day to prevent that from happening. It will then send the Alpha somewhere else, so that it cannot be killed again.
I think, that was the explanation at the end of the movie why the "task force" was not allowed to kill an Alpha when chasing the Omega, because otherwise the day would be reset and the Omega would move away.
Unfortunately I cannot tell, if it is possible to "infect" multiple persons with the "reset" ability by covering them with blood of an Alpha and killing them instantly thereafter, as it is not stated anywhere in the movie.
Sorry for my english, I am not a native speaker... |
87,398 | So, I know you can create a shortcut to an administrator-level command prompt (as described in [this question](https://superuser.com/questions/74564/on-win7-is-there-a-command-prompt-line-that-can-start-cmd-as-an-administrator "this question")), but what I'm seeing is that whenever I use such a shortcut, it always drops me into c:\windows\system32\ path.
I've tried specifying that shortcut's properties to set the "start in" path I need, but to no avail. It seems any time I run **cmd.exe** "As Administrator," it completely disregards the shortcut's paths and sticks to c:\windows\system32\
Any suggestions on how to get Windows 7 to respect the shortcut's "start in" path? | 2009/12/24 | [
"https://superuser.com/questions/87398",
"https://superuser.com",
"https://superuser.com/users/22575/"
] | Easiest option I have found is to add a registry key. Run the following from an elevated command prompt:
REG ADD "HKLM\SOFTWARE\Microsoft\Command Processor" /v AutoRun /t REG\_SZ /d "CD /D C:\"
NOTE: Close the command prompt afterwards and reopen and it will change to the root of the C drive.
This will work for all users.
Alternatively adding to current user works too (put it in a logon script, startup folder etc) but this would be dynamic of course. | If you are running a \*.bat file through a shortcut marked with "run as administrator" you can change to the folder of the \*.bat file by adding in the beginning of the \*.bat file the following row: cd %~dp0 |
4,253,903 | Python Cookbook 2nd edition is updated for Python 2.4. Is it still ok to study the book using Python version 2.5 or 2.6? | 2010/11/23 | [
"https://Stackoverflow.com/questions/4253903",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/395676/"
] | It depends on what you want to learn out of the book.
Let me guess that you are a newbie. If you are not new to programming (probably you are not, you are in SO), then the 2.4 cookbook will be fine. There would be a few changes in the later versions to catch up with, the ones that simplify code and introduce new idioms and help you do things in a better/cleaner way, but you can pick them up later on.
If you are new to programming, then may be you should pick up something more recent. It is important to pick up clean coding habits and know your community's idioms. | Well you can always start with Byte of Python OpenSource Doument Small Precise and to the Point Description. here the link :
Regards |
4,253,903 | Python Cookbook 2nd edition is updated for Python 2.4. Is it still ok to study the book using Python version 2.5 or 2.6? | 2010/11/23 | [
"https://Stackoverflow.com/questions/4253903",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/395676/"
] | It depends on what you want to learn out of the book.
Let me guess that you are a newbie. If you are not new to programming (probably you are not, you are in SO), then the 2.4 cookbook will be fine. There would be a few changes in the later versions to catch up with, the ones that simplify code and introduce new idioms and help you do things in a better/cleaner way, but you can pick them up later on.
If you are new to programming, then may be you should pick up something more recent. It is important to pick up clean coding habits and know your community's idioms. | I would say yes. There have been a few big changes since 2.4, but most if not all of the Cookbook will still apply. It also gives you a good idea of idiomatic python. |
4,253,903 | Python Cookbook 2nd edition is updated for Python 2.4. Is it still ok to study the book using Python version 2.5 or 2.6? | 2010/11/23 | [
"https://Stackoverflow.com/questions/4253903",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/395676/"
] | Python 2.4 is too old. In my opinion it will worth the time and money to find a more recent resource, especially if your time is limited. More recent books will also cover changes in the libraries, including advances in python web app development, which I don't expect to find in aged resources. Especially for a cookbook, which includes solutions to common problems, being up-to-dated is important.
May I also say that Python is now in version 3, where major changes have been introduced. It will be beneficial to study Python 3, even if you are only planning to use 2.x versions. A great online resource is of course [Dive into Python](http://diveintopython3.org/). | Well you can always start with Byte of Python OpenSource Doument Small Precise and to the Point Description. here the link :
Regards |
4,253,903 | Python Cookbook 2nd edition is updated for Python 2.4. Is it still ok to study the book using Python version 2.5 or 2.6? | 2010/11/23 | [
"https://Stackoverflow.com/questions/4253903",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/395676/"
] | Python 2.4 is too old. In my opinion it will worth the time and money to find a more recent resource, especially if your time is limited. More recent books will also cover changes in the libraries, including advances in python web app development, which I don't expect to find in aged resources. Especially for a cookbook, which includes solutions to common problems, being up-to-dated is important.
May I also say that Python is now in version 3, where major changes have been introduced. It will be beneficial to study Python 3, even if you are only planning to use 2.x versions. A great online resource is of course [Dive into Python](http://diveintopython3.org/). | I would say yes. There have been a few big changes since 2.4, but most if not all of the Cookbook will still apply. It also gives you a good idea of idiomatic python. |
4,253,903 | Python Cookbook 2nd edition is updated for Python 2.4. Is it still ok to study the book using Python version 2.5 or 2.6? | 2010/11/23 | [
"https://Stackoverflow.com/questions/4253903",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/395676/"
] | It depends on what you want to learn out of the book.
Let me guess that you are a newbie. If you are not new to programming (probably you are not, you are in SO), then the 2.4 cookbook will be fine. There would be a few changes in the later versions to catch up with, the ones that simplify code and introduce new idioms and help you do things in a better/cleaner way, but you can pick them up later on.
If you are new to programming, then may be you should pick up something more recent. It is important to pick up clean coding habits and know your community's idioms. | Sure, although 2.4 is pretty old now -- not too much has changed, and what has, you can review in the [What's New in Python](http://docs.python.org/whatsnew/index.html) series. |
4,253,903 | Python Cookbook 2nd edition is updated for Python 2.4. Is it still ok to study the book using Python version 2.5 or 2.6? | 2010/11/23 | [
"https://Stackoverflow.com/questions/4253903",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/395676/"
] | Python 2.4 is too old. In my opinion it will worth the time and money to find a more recent resource, especially if your time is limited. More recent books will also cover changes in the libraries, including advances in python web app development, which I don't expect to find in aged resources. Especially for a cookbook, which includes solutions to common problems, being up-to-dated is important.
May I also say that Python is now in version 3, where major changes have been introduced. It will be beneficial to study Python 3, even if you are only planning to use 2.x versions. A great online resource is of course [Dive into Python](http://diveintopython3.org/). | I find it's a useful reference and still use it. It's full of good general tips and advice much of which still applies to the newer versions of Python. That said, I'd save money and get a used copy.
I found an online version here: <http://flylib.com/books/en/2.9.1.2/1/> |
4,253,903 | Python Cookbook 2nd edition is updated for Python 2.4. Is it still ok to study the book using Python version 2.5 or 2.6? | 2010/11/23 | [
"https://Stackoverflow.com/questions/4253903",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/395676/"
] | Python 2.4 is too old. In my opinion it will worth the time and money to find a more recent resource, especially if your time is limited. More recent books will also cover changes in the libraries, including advances in python web app development, which I don't expect to find in aged resources. Especially for a cookbook, which includes solutions to common problems, being up-to-dated is important.
May I also say that Python is now in version 3, where major changes have been introduced. It will be beneficial to study Python 3, even if you are only planning to use 2.x versions. A great online resource is of course [Dive into Python](http://diveintopython3.org/). | Sure, although 2.4 is pretty old now -- not too much has changed, and what has, you can review in the [What's New in Python](http://docs.python.org/whatsnew/index.html) series. |
4,253,903 | Python Cookbook 2nd edition is updated for Python 2.4. Is it still ok to study the book using Python version 2.5 or 2.6? | 2010/11/23 | [
"https://Stackoverflow.com/questions/4253903",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/395676/"
] | Sure, although 2.4 is pretty old now -- not too much has changed, and what has, you can review in the [What's New in Python](http://docs.python.org/whatsnew/index.html) series. | Well you can always start with Byte of Python OpenSource Doument Small Precise and to the Point Description. here the link :
Regards |
4,253,903 | Python Cookbook 2nd edition is updated for Python 2.4. Is it still ok to study the book using Python version 2.5 or 2.6? | 2010/11/23 | [
"https://Stackoverflow.com/questions/4253903",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/395676/"
] | I find it's a useful reference and still use it. It's full of good general tips and advice much of which still applies to the newer versions of Python. That said, I'd save money and get a used copy.
I found an online version here: <http://flylib.com/books/en/2.9.1.2/1/> | Well you can always start with Byte of Python OpenSource Doument Small Precise and to the Point Description. here the link :
Regards |
4,253,903 | Python Cookbook 2nd edition is updated for Python 2.4. Is it still ok to study the book using Python version 2.5 or 2.6? | 2010/11/23 | [
"https://Stackoverflow.com/questions/4253903",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/395676/"
] | It depends on what you want to learn out of the book.
Let me guess that you are a newbie. If you are not new to programming (probably you are not, you are in SO), then the 2.4 cookbook will be fine. There would be a few changes in the later versions to catch up with, the ones that simplify code and introduce new idioms and help you do things in a better/cleaner way, but you can pick them up later on.
If you are new to programming, then may be you should pick up something more recent. It is important to pick up clean coding habits and know your community's idioms. | I find it's a useful reference and still use it. It's full of good general tips and advice much of which still applies to the newer versions of Python. That said, I'd save money and get a used copy.
I found an online version here: <http://flylib.com/books/en/2.9.1.2/1/> |
172,631 | I'm in a small business of hosting my clients' websites, and a lot of times they ask me to create one from scratch. I'm no designer, but I can code CSS/HTML, AJAX, PHP. However, I'm *not* willing to create sites from scratch, knowing how much is involved.
In the past, I've tried using design templates, but they proved to be inefficient - customers would request changes and I'd be unable to assist them, since I didn't write the template. Customers themselves would not be able to make changes.
So, the question is: **Is there web-based software that allows for easy creation of custom websites, with skins/layouts/templates? It should allow non-technical person to add content and make basic modifications.** I've seen a few websites use [Wordpress](http://codex.wordpress.org/Getting_Started_with_WordPress) for that purpose, but don't know if it's a good choice. | 2008/10/05 | [
"https://Stackoverflow.com/questions/172631",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/18406/"
] | If it has to be dead easy, then look at something like Joomla. If you want a bit more control, try Drupal. I think that both will suit you better than WordPress if my hunch is right. | No, Joomla is huge and heavy, is not a reliable solution. I recommend you [Movable Type](http://www.movabletype.org/). It's written in PERL but have native support for multi-sites and multi-domains. Which is kinda cool :) Also, You can try [Expression Engine](http://expressionengine.com/) whch also have some nice features for multi-domain users with one setup.
Anyhow, the best solution is to build a custom solution for this, but of course, you won't be only a hosting company anymore :D |
172,631 | I'm in a small business of hosting my clients' websites, and a lot of times they ask me to create one from scratch. I'm no designer, but I can code CSS/HTML, AJAX, PHP. However, I'm *not* willing to create sites from scratch, knowing how much is involved.
In the past, I've tried using design templates, but they proved to be inefficient - customers would request changes and I'd be unable to assist them, since I didn't write the template. Customers themselves would not be able to make changes.
So, the question is: **Is there web-based software that allows for easy creation of custom websites, with skins/layouts/templates? It should allow non-technical person to add content and make basic modifications.** I've seen a few websites use [Wordpress](http://codex.wordpress.org/Getting_Started_with_WordPress) for that purpose, but don't know if it's a good choice. | 2008/10/05 | [
"https://Stackoverflow.com/questions/172631",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/18406/"
] | If it has to be dead easy, then look at something like Joomla. If you want a bit more control, try Drupal. I think that both will suit you better than WordPress if my hunch is right. | I think you are basically looking for a CMS. Now the problem is that there a so many CMS'es out there that it can be overwhelming to pick one. Another thing I've noticed over the years is that with the vast amount of CMS systems to pick from there is a lot of personal taste involved. To pick the one that suits you best you need to try out a bunch of them. I suggest you head over to [CMSMatrix](http://www.cmsmatrix.org/) and browse through the assortment and familiarize yourself with some of them.
(PS: Don't forget to try out [Drupal](http://www.drupal.org)) |
172,631 | I'm in a small business of hosting my clients' websites, and a lot of times they ask me to create one from scratch. I'm no designer, but I can code CSS/HTML, AJAX, PHP. However, I'm *not* willing to create sites from scratch, knowing how much is involved.
In the past, I've tried using design templates, but they proved to be inefficient - customers would request changes and I'd be unable to assist them, since I didn't write the template. Customers themselves would not be able to make changes.
So, the question is: **Is there web-based software that allows for easy creation of custom websites, with skins/layouts/templates? It should allow non-technical person to add content and make basic modifications.** I've seen a few websites use [Wordpress](http://codex.wordpress.org/Getting_Started_with_WordPress) for that purpose, but don't know if it's a good choice. | 2008/10/05 | [
"https://Stackoverflow.com/questions/172631",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/18406/"
] | If it has to be dead easy, then look at something like Joomla. If you want a bit more control, try Drupal. I think that both will suit you better than WordPress if my hunch is right. | I've used Wordpress for a very simple site which proved a right decision for it. You can check out that site at: [Chhobi.net](http://www.chhobi.net). If you don't have many complex requirements, I think Wordpress is not a bad idea. If you need to expand the site later on, and add different functionality (like forums, gallery, polls, etc.) you better go for a proper CMS solution like Joomla, Drupal, and likewise. |
172,631 | I'm in a small business of hosting my clients' websites, and a lot of times they ask me to create one from scratch. I'm no designer, but I can code CSS/HTML, AJAX, PHP. However, I'm *not* willing to create sites from scratch, knowing how much is involved.
In the past, I've tried using design templates, but they proved to be inefficient - customers would request changes and I'd be unable to assist them, since I didn't write the template. Customers themselves would not be able to make changes.
So, the question is: **Is there web-based software that allows for easy creation of custom websites, with skins/layouts/templates? It should allow non-technical person to add content and make basic modifications.** I've seen a few websites use [Wordpress](http://codex.wordpress.org/Getting_Started_with_WordPress) for that purpose, but don't know if it's a good choice. | 2008/10/05 | [
"https://Stackoverflow.com/questions/172631",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/18406/"
] | No, Joomla is huge and heavy, is not a reliable solution. I recommend you [Movable Type](http://www.movabletype.org/). It's written in PERL but have native support for multi-sites and multi-domains. Which is kinda cool :) Also, You can try [Expression Engine](http://expressionengine.com/) whch also have some nice features for multi-domain users with one setup.
Anyhow, the best solution is to build a custom solution for this, but of course, you won't be only a hosting company anymore :D | I think you are basically looking for a CMS. Now the problem is that there a so many CMS'es out there that it can be overwhelming to pick one. Another thing I've noticed over the years is that with the vast amount of CMS systems to pick from there is a lot of personal taste involved. To pick the one that suits you best you need to try out a bunch of them. I suggest you head over to [CMSMatrix](http://www.cmsmatrix.org/) and browse through the assortment and familiarize yourself with some of them.
(PS: Don't forget to try out [Drupal](http://www.drupal.org)) |
172,631 | I'm in a small business of hosting my clients' websites, and a lot of times they ask me to create one from scratch. I'm no designer, but I can code CSS/HTML, AJAX, PHP. However, I'm *not* willing to create sites from scratch, knowing how much is involved.
In the past, I've tried using design templates, but they proved to be inefficient - customers would request changes and I'd be unable to assist them, since I didn't write the template. Customers themselves would not be able to make changes.
So, the question is: **Is there web-based software that allows for easy creation of custom websites, with skins/layouts/templates? It should allow non-technical person to add content and make basic modifications.** I've seen a few websites use [Wordpress](http://codex.wordpress.org/Getting_Started_with_WordPress) for that purpose, but don't know if it's a good choice. | 2008/10/05 | [
"https://Stackoverflow.com/questions/172631",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/18406/"
] | No, Joomla is huge and heavy, is not a reliable solution. I recommend you [Movable Type](http://www.movabletype.org/). It's written in PERL but have native support for multi-sites and multi-domains. Which is kinda cool :) Also, You can try [Expression Engine](http://expressionengine.com/) whch also have some nice features for multi-domain users with one setup.
Anyhow, the best solution is to build a custom solution for this, but of course, you won't be only a hosting company anymore :D | I've used Wordpress for a very simple site which proved a right decision for it. You can check out that site at: [Chhobi.net](http://www.chhobi.net). If you don't have many complex requirements, I think Wordpress is not a bad idea. If you need to expand the site later on, and add different functionality (like forums, gallery, polls, etc.) you better go for a proper CMS solution like Joomla, Drupal, and likewise. |
36,716 | Instead, I get white squares. I have no idea if they are used, but I installed "xfonts-intl-chinese" (didn't work). I googled this issue, and there was a lot of talk about some bug in poppler. But, that was so long ago so I should have the more recent version without the bug, right? I'm on Debian if that helps. | 2012/04/17 | [
"https://unix.stackexchange.com/questions/36716",
"https://unix.stackexchange.com",
"https://unix.stackexchange.com/users/13136/"
] | Debian stable runs does not jump to newer versions of packages very quickly.
Poppler Versions:
* Debian Stable: 0.12.4 (2 yrs old)
* Debian Testing/Unstable: 0.16.7 (10 months old)
* Current Release: 0.18.4 (2 months old)
* Bleeding Edge: 0.19.3 (6 days old)
So you may be running to the bug in poppler you found by in your search. I would try the Debian Testing (wheezy) release poppler packages. | Use the Synaptic package manager. Type "cmap-adobe-" in the "Quick Search" text box. In the "Packages List" pane you should see the "gs-cjk-resource", "cmap-adobe-gb1" and "cmap-adobe-cns1" packages. Install those packages. You might have to install the "poppler-data" package also. |
59,737,434 | I have the following scenario:
[](https://i.stack.imgur.com/9hPXa.png)
The **user red** make a http request to one of the three services in the **namespace1**. Somehow in the K8s, it should verify, if the **user red** has a valid certificate for **namespace1** to call services or not. In this case, the **user red** owns the right certificate for the **namespace1**, so it allows to call any services within the **namespace1**. The same rule is also apply for **user blue**.
But when user red try to call services in the **namespace2**, then requests should be rejected, because it does not own the right certificat for **namespace2**.
The question is, it is possible to create namespace certificate in kubernetes. For example, when I have a **certificate A**, then I can only access **namespace1** but not **namespace2**. | 2020/01/14 | [
"https://Stackoverflow.com/questions/59737434",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/1743843/"
] | I think Kubernetes Services don’t offer such features. The authentication should be done in an ingress controller (e.g. nginx-ingress). You just deploy two different ones, one per namespace, with different certificate configuration. | Not exactly what you want but it's possible to do per domain.You can use an ingress controller such as ambassador with [SNI support](https://www.getambassador.io/user-guide/sni/).You supply separate TLS certificates for different domains, instead of using a single TLS certificate for all domains.It is designed to be configured on a per-mapping basis, enabling application developers or service owners to individually manage how their service gets exposed over TLS.
Using SNI instead multiple ingress controller deployments is more scalable because multiple load balancers or IPs for those ingress controllers can be avoided.
The problem with SNI is client library and browser support is limited. |
144,435 | We have a lot of information on our product's detail page.
I want to conduct user testing to learn from the users how they would prioritize and rank the information. I am considering using an unmoderated user testing platform.
My question is: would a card sorting test on the unmoderated platform cover what I'm trying to do, or would there be a better method for testing this? | 2022/09/19 | [
"https://ux.stackexchange.com/questions/144435",
"https://ux.stackexchange.com",
"https://ux.stackexchange.com/users/162024/"
] | [UX Heuristic #1: Visibility of System Status](https://www.nngroup.com/articles/visibility-system-status/) applies here.
>
> Whenever users interact with a system, they need to know whether the
> interaction was successful. Did the system actually catch that button
> press or was it busy with something else and it ignored it? Did the
> item get added to cart? Did the request go through? (One reason users
> have these questions is that they have been burned before by
> technology that didn’t work properly. However, even when the happy day
> of bug-free technology arrives, people will still wonder if they
> really clicked or tapped correctly.)
>
>
> Appropriate feedback for a user action is perhaps the most basic
> guideline of user-interface design. It serves to keep users informed
> of the current status and to allow them to steer the interaction in
> the right direction, without wasting effort.
>
>
>
So yes -- generally, it is a best practice to let a user know that the task they were trying to complete, such as adding a user, was successful.
There are many patterns on how to do this, ranging from very subtle to necessarily intrusive. [Here's another article on selecting the right one.](https://www.nngroup.com/articles/indicators-validations-notifications/) | Adding to Izquierdo's answer, providing a summary for user-added information is one of the [best practices for designing for users with anxiety](https://ukhomeoffice.github.io/accessibility-posters/anxiety):
>
> We can reassure users by giving them the opportunity to check and change their answers before they submit. Without this step, users are less informed which could increase anxiety.
>
>
>
So yes, it is generally just a good practice. |
82,672 | You have an idea of a software/app/webapp/website that you would like to spend some effort and implement. Your idea uses a cloud system to keep things up and you think you could earn some money by distributing your product and charging a **small** one-time fee. But there is a problem: the first thing you realize is that one day that user using your system may eat all the money he gave you with his indirect recurring little spending in the cloud.
How would you do the math to find out if your idea was feasible? | 2011/06/09 | [
"https://softwareengineering.stackexchange.com/questions/82672",
"https://softwareengineering.stackexchange.com",
"https://softwareengineering.stackexchange.com/users/27391/"
] | [uLoops](http://uloops.net), a server-based music creation software for Android, faced the same problem. Until recently, they had a model requiring a monthly payment. That's nice to cover the costs, but honestly, creating music on a smartphone isn't that funny that many people would spend EUR 5,- per month for it.
So recently, they switched to a one-time payment of EUR 10,-
Some people (including my humble self) pay up the 10,-, use the software for some time and then realize that they are not Mozart born again; so they do not cause recurring costs. For heavy users, they found a way to generate more revenue: To save the music on their servers, you need storage; the application comes with a quota of 50MB; once that is used up, users have to buy more storage.
So here is the short answer: **Charge for a byproduct of using the software.** | Sounds like you need to diversify your product plans - you should introduce a pay-as-you-go plan, as well as a prepaid (limited to a certain credit amount) plan.
That should help if not make profit, then at least split even for a while. |
3,765,748 | My app connects to the net and populates a ListView. Sometimes nothing will be returned. What is the best way to notify the user the list is empty?
Some of my own suggestions:
* Show "No Results" in the first ListItem
* Show a new view that says "No Results" | 2010/09/22 | [
"https://Stackoverflow.com/questions/3765748",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/19875/"
] | >
> Show a new view that says "No Results"
>
>
>
This is the correct option. Do not confuse your user by presenting an info message as a list item. They are not the same. | I choose "Show "*No Results" in the first ListItem*".
Because users could connect the "*No Results*" to the *ListItem* directly, while new view leads users to have to accept new thing. |
3,765,748 | My app connects to the net and populates a ListView. Sometimes nothing will be returned. What is the best way to notify the user the list is empty?
Some of my own suggestions:
* Show "No Results" in the first ListItem
* Show a new view that says "No Results" | 2010/09/22 | [
"https://Stackoverflow.com/questions/3765748",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/19875/"
] | ListView allows you to have an alternative view shown when it is empty:
<http://developer.android.com/reference/android/widget/AdapterView.html#setEmptyView(android.view.View)>
In fact, if you use a ListActivity whose layout has a view with android:id="@android:id/empty", it will automatically hook this up for you.
So typically you could put the ListView and your empty view in a FrameLayout, and have the empty view have some nice text centered in its area telling the user there is nothing to show. | >
> Show a new view that says "No Results"
>
>
>
This is the correct option. Do not confuse your user by presenting an info message as a list item. They are not the same. |
3,765,748 | My app connects to the net and populates a ListView. Sometimes nothing will be returned. What is the best way to notify the user the list is empty?
Some of my own suggestions:
* Show "No Results" in the first ListItem
* Show a new view that says "No Results" | 2010/09/22 | [
"https://Stackoverflow.com/questions/3765748",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/19875/"
] | ListView allows you to have an alternative view shown when it is empty:
<http://developer.android.com/reference/android/widget/AdapterView.html#setEmptyView(android.view.View)>
In fact, if you use a ListActivity whose layout has a view with android:id="@android:id/empty", it will automatically hook this up for you.
So typically you could put the ListView and your empty view in a FrameLayout, and have the empty view have some nice text centered in its area telling the user there is nothing to show. | I choose "Show "*No Results" in the first ListItem*".
Because users could connect the "*No Results*" to the *ListItem* directly, while new view leads users to have to accept new thing. |
128,313 | We all know what's a nuclear bomb, but how would a nuclear bomb affect the human body, for example, let's say a nuclear bomb as powerful as The Fatman 1000m away from me, **would I survive the blast?** If not how far would I need to be to survive the blast | 2018/10/23 | [
"https://worldbuilding.stackexchange.com/questions/128313",
"https://worldbuilding.stackexchange.com",
"https://worldbuilding.stackexchange.com/users/56621/"
] | Well, the problem is Fat man was the Nagasaki Bomb, not Hiroshima. You're thinking of Little Boy. Fat man was the more powerful bomb, but Little Boy was the more destructive (mostly due to terrain blocking a large amount of the blast force. Hiroshima was flat coastal land that allowed more destructive forces to go further).
To further emphasis that it really depends on just what is getting hit and when, we need to look at two really amazing incidents in Hiroshima. First, the building known as the Genbaku Dome (A-Bomb Dome) is a pre-Atomic Bomb structure from Hiroshima that is the symbol of the peace memorial. It was directly under the blast of the explosion and stands as it was found by the survivors. We also know that the closest known Hiroshima Survivor was Eizo Numura, a bank teller who was in the building's vault some 170 m from ground zero at the time of detonation. So conditions really depend on where you were and what you were doing when the bomb went off.
For a really good read, TV Tropes has an article (The Deadliest Mushroom) where they discuss what would happen if a Hiroshima style bomb was detonated over Walt Disney Studios in L.A. (We all know this means Bugs said "This Means War" at some point.) | @BUZ Z I recommend you revisit the original "Terminator" movie, c. 1984...the "judgement day" dream sequence is pretty accurate from a first-hand perspective. Tests done by U.S. Defense during the cold war on both human 'volunteers' and animal test subjects, all point to the assumption that being 1000 meters from *any* atomic blast is lethal, death is usually instant as well. |
128,313 | We all know what's a nuclear bomb, but how would a nuclear bomb affect the human body, for example, let's say a nuclear bomb as powerful as The Fatman 1000m away from me, **would I survive the blast?** If not how far would I need to be to survive the blast | 2018/10/23 | [
"https://worldbuilding.stackexchange.com/questions/128313",
"https://worldbuilding.stackexchange.com",
"https://worldbuilding.stackexchange.com/users/56621/"
] | Here's a breakdown of the effects at different distances for a Bomb the size of Fatman:
=======================================================================================
1. 600 m: Buildings completely leveled
2. 1.0 km: Railway cars crushed and blown off tracks
3. 1.4 km: Instantly lethal radiation dose
4. 1.7 km: Complete destruction of a majority buildings
5. 1.8 km: Acute radiation syndrome
6. 2.0 km: Conflagration (within the fireball)
7. 2.5 km: 3rd degree burns (you'll probably live if you're in a typical, non-nuclear bomb shelter)
8. 3.2 km: 2nd degree burns
9. 4.2 km: 1st degree burns
10. 4.7 km: Moderate damage to civilian buildings
Beyond this, your survivability depends on the fallout from the nuclear blast, which depends a lot more on the weather and other factors. | @BUZ Z I recommend you revisit the original "Terminator" movie, c. 1984...the "judgement day" dream sequence is pretty accurate from a first-hand perspective. Tests done by U.S. Defense during the cold war on both human 'volunteers' and animal test subjects, all point to the assumption that being 1000 meters from *any* atomic blast is lethal, death is usually instant as well. |
128,313 | We all know what's a nuclear bomb, but how would a nuclear bomb affect the human body, for example, let's say a nuclear bomb as powerful as The Fatman 1000m away from me, **would I survive the blast?** If not how far would I need to be to survive the blast | 2018/10/23 | [
"https://worldbuilding.stackexchange.com/questions/128313",
"https://worldbuilding.stackexchange.com",
"https://worldbuilding.stackexchange.com/users/56621/"
] | Here's a breakdown of the effects at different distances for a Bomb the size of Fatman:
=======================================================================================
1. 600 m: Buildings completely leveled
2. 1.0 km: Railway cars crushed and blown off tracks
3. 1.4 km: Instantly lethal radiation dose
4. 1.7 km: Complete destruction of a majority buildings
5. 1.8 km: Acute radiation syndrome
6. 2.0 km: Conflagration (within the fireball)
7. 2.5 km: 3rd degree burns (you'll probably live if you're in a typical, non-nuclear bomb shelter)
8. 3.2 km: 2nd degree burns
9. 4.2 km: 1st degree burns
10. 4.7 km: Moderate damage to civilian buildings
Beyond this, your survivability depends on the fallout from the nuclear blast, which depends a lot more on the weather and other factors. | Well, the problem is Fat man was the Nagasaki Bomb, not Hiroshima. You're thinking of Little Boy. Fat man was the more powerful bomb, but Little Boy was the more destructive (mostly due to terrain blocking a large amount of the blast force. Hiroshima was flat coastal land that allowed more destructive forces to go further).
To further emphasis that it really depends on just what is getting hit and when, we need to look at two really amazing incidents in Hiroshima. First, the building known as the Genbaku Dome (A-Bomb Dome) is a pre-Atomic Bomb structure from Hiroshima that is the symbol of the peace memorial. It was directly under the blast of the explosion and stands as it was found by the survivors. We also know that the closest known Hiroshima Survivor was Eizo Numura, a bank teller who was in the building's vault some 170 m from ground zero at the time of detonation. So conditions really depend on where you were and what you were doing when the bomb went off.
For a really good read, TV Tropes has an article (The Deadliest Mushroom) where they discuss what would happen if a Hiroshima style bomb was detonated over Walt Disney Studios in L.A. (We all know this means Bugs said "This Means War" at some point.) |
73,230 | If a user saves the password on the login form, ff3 is putting the saved password in the change password dialoge on the profile page, even though its **not the same input name** as the login. how can I prevent this? | 2008/09/16 | [
"https://Stackoverflow.com/questions/73230",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/-1/"
] | I think that FF autofills fields based on the "name" attribute of the field so that if the password box has the name="password" and the change password box has the same it will fill in the same password in both places.
Try changing the name attribute of one of the boxes. | Some sites have 3 inputs for changing a password, one for re-entering the current password and two for entering the new password. If the re-entering input was first and got auto-filled, it wouldn't be a problem. |
73,230 | If a user saves the password on the login form, ff3 is putting the saved password in the change password dialoge on the profile page, even though its **not the same input name** as the login. how can I prevent this? | 2008/09/16 | [
"https://Stackoverflow.com/questions/73230",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/-1/"
] | I think that FF autofills fields based on the "name" attribute of the field so that if the password box has the name="password" and the change password box has the same it will fill in the same password in both places.
Try changing the name attribute of one of the boxes. | Go in tools->page properties->security on the page you wish to modify. |
10,397 | If someone attacks you with nunchaku, what is the best way to defend yourself? | 2021/02/13 | [
"https://martialarts.stackexchange.com/questions/10397",
"https://martialarts.stackexchange.com",
"https://martialarts.stackexchange.com/users/6750/"
] | I agree with Macaco's answer. Just wanted to chime in with my own thoughts as well.
There are generally five ways to use a nunchuck:
1. For intimidation. Twirling any weapon around is scary to your opponent.
2. Flailing it around. The end of the nunchuck is used to strike your
opponent.
3. Using it as a solid stick instead of a flexible weapon. Usually you grab both sticks and use it like a short baton to thrust, smack, or use in grappling as leverage.
4. Using the chain part to wrap around wrists, ankles, and necks for various effects.
5. Throwing the nunchuck at someone to hurt or distract.
Each of those tactics requires a response.
But assuming we're in the free fighting range (nobody is grappling), and assuming he's flailing it around at you or intends to do so, and assuming you can't or don't want to run, you've got some options.
One counter to a flailing nunchuck is to time the strikes. Nunchuck "twirling" is fast, but like with regular sparring, people are often repetitive. You can see their pattern and time a counter to it. **Half-beat timing** is preferred. That means when you see him start to move, you move to counter. You want to connect with him at a time when he's vulnerable. That would be when he's past half-way into his technique.
So timing is very important, as always, in self-defense. It is perhaps the most important thing. In order to learn the timing, **you have to spar**. There's no way around it. You can't learn timing while doing kata. You have to have someone in front of you actively trying to use that nunchuck on you. For that, you'll want to use practice chucks, which have foam padding. And you yourself should wear goggles and head/face/ear protection. Maybe add some MMA gloves as well, because you can still break fingers even on foam padded chucks.
The other thing to realize about nunchuck fighting is that their power greatly decreases the closer you become to your opponent. So if your timing fails, keep moving towards your opponent and stick to his torso. If he's smart, he'll stop flailing and then will switch to using the chain to wrap around your neck or putting both sticks together and using them like a solid baton to smash down on your head. This is where your grappling skill needs to come in. You need to neutralize the threat of that nunchuck. Don't let go, because as soon as you give him some space, he's going to go back to flailing. And if he's on the ground, your ankles are right there for him to attack.
Here's the thing, though, about grappling someone who has nunchucks: **They also have a knife hidden away.** Or at least, that should be the assumption. You figure if he's so nonchalant about twirling around nunchucks in public, he's got a knife hidden on him. So if you do grapple with him, you're risking him tossing his nunchuck away or letting go of one stick, quickly grabbing out his knife, and stabbing you with it. So that's the risk of grappling in this situation.
Again, you'll need to incorporate this in your sparring to make sure you're aware of this problem and can address it. I can cut to the chase (no pun intended), and say: You will get cut a lot in sparring. It's going to become obvious that you're not very good at this. But the training can still save your life if you ever encounter this situation for real, so keep trying. You may get cut, but maybe the sparring will train you not to get cut in the worst ways.
All of that is for unarmed self-defense against someone with a nunchuck when you can't run away. As always, if you're fighting unarmed against someone who is armed, you may need to improvise a weapon to neutralize his advantage. A shield is appropriate. Pick up a trash can lid or take off your jacket and use it. A long weapon is good to keep him away. Throw stuff at him to disrupt his flow and then rush him. Knives are always good to have on you if you end up grappling. Obviously, a gun is probably the most effective weapon to have.
This is all hypothetical. I don't hear of a lot of nunchuck fights out there. If anything, I sometimes hear about machetes. Sometimes I hear about some crazy guy with a sword, but nunchuck fights are even more rare than that. I think the reason for that is because most people can't use nunchucks effectively. When deciding how to prioritize your training time, this should be pretty low!
Hope that helps. | Just to get the obvious out of the way, your best defense against most attacks is to run and get help, maybe preceding it by delaying the other person by throwing something at them before running.
Outside of that, a lot of the defense will depend on the flexible nature of the nunchaku. I'd say that your first priority is to have something other than your bare hands. Even something flexible like a belt or a scarf held between your hands gives you something to block with. As a flexible weapon, when blocked, the wielder loses some degree of control as it bounces back. If you have a longer weapon, like a broomstick, you can similarly take advantage of the flexible nature of the weapon by going on the attack. It's more difficult to generate enough energy to deflect (and again, upon using the nunchaku to deflect, you lose some control of the weapon for a time). |
19,482,820 | Deadlock - a situation in which two or more competing actions are each waiting for the other to finish, and thus neither ever does.
Indefinite Postponement - to delay indefinitely the scheduling of a process while other processes receive the system's attention
These 2 terms seem very similar. How can I tell them apart? | 2013/10/20 | [
"https://Stackoverflow.com/questions/19482820",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/1061193/"
] | >
> In any system that keeps processes waiting while it makes
> resource-allocation and process scheduling decisions, it is possible
> to delay indefinitely the scheduling of a process while other
> processes receive the system's attention. This situation, variously
> called indefinite postponement, indefinite blocking, or starvation,
> can be as devastating as deadlock
>
>
>
From:
<http://wps.prenhall.com/esm_deitel_os_3/17/4402/1127072.cw/index.html>
Havender’s conditions for deadlock(1968) - 7.2.1
>
> • There is a circular list of processes each wanting a resource owned
> by another in the list.
>
>
> • Resources cannot be shared.
>
>
> • Only the owner can release the resource
>
>
> • A process can hold a resource while
> requesting another
>
>
>
From:
<http://www.cs.auckland.ac.nz/~robert-s/415.340/lectures_1997/lecture35.pdf>
So indefinite postponement causes 1 process to suffer while others continue normally, which can be caused by poor scheduling or other reasons, a situation where the indefinitely postponed process always has a lower priority than all other processes after the same resource. At some later time, it MAY end up with high enough priority to get the resource.
Deadlock results when a process is requesting a resource held by another process. That process (A) will not release the resource until it gets its hands on another resource it is requesting, which incidentally is held by another process (B) which will not release it until it recieves a resource held by another process (C) which will not release it until it gets that resource being held onto by (A). That scenario involved 3 processes, A,B,C; but it could potentially involve any "circle" of 2 or more processes. | If two processes are in deadlock, it is not possible for them to ever do any useful work - because they depend on one another, and neither will ever yield.
If process is postponed indefinitely, it is at least theoretically possible for such process to continue and do some useful work at some time in the future. It could happen if other processes stop abusing resources or simply quit, or if you increase priority of process being indefinitely postponed. |
6,427,620 | I want to set up a SOAP development enviornment. So I can create web services and such. I tried following the docs for the TOMCAT/AXIS/APACHE stuff but it all seemed outdated? Any recommendations, links or resources to good ways to set up an SOAP enviornment? I will be using Eclipse. | 2011/06/21 | [
"https://Stackoverflow.com/questions/6427620",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/411224/"
] | First, you'll need to decide on what container to use, [Apache Axis2](http://Aapche%20Axis2) is a popular choice. You can then go through the [QuickStart guide](http://axis.apache.org/axis2/java/core/docs/quickstartguide.html) to get things up and running quickly. Another popular choice is [Apache CXF](http://cxf.apache.org/).
I know you favor eclipse, but [NetBeans](http://www.netbeans.org/) comes with some example web services packages installed. | Well you need to write your webservice in a development language such as PHP and have it served up to the consumer of your webservice with something like a webserver(apache) |
4,226,017 | I've seen in some examples (e.g. [this][1][1]: <http://www.ibm.com/developerworks/java/library/j-jsf2fu3/>) that subcomponent can see attributes of parent component using 'cc.parent.attrs'. However, it is not work for me. What can be the reason? | 2010/11/19 | [
"https://Stackoverflow.com/questions/4226017",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/430488/"
] | Maybe it is this bug? [JSF issue 1689](http://java.net/jira/browse/JAVASERVERFACES-1689). | you can pass necessary params through tag to the child component, if the param count is not so great. |
4,226,017 | I've seen in some examples (e.g. [this][1][1]: <http://www.ibm.com/developerworks/java/library/j-jsf2fu3/>) that subcomponent can see attributes of parent component using 'cc.parent.attrs'. However, it is not work for me. What can be the reason? | 2010/11/19 | [
"https://Stackoverflow.com/questions/4226017",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/430488/"
] | Maybe it is this bug? [JSF issue 1689](http://java.net/jira/browse/JAVASERVERFACES-1689). | It is a bug 1689 and it is fixed in 2.0.3. |
411,278 | I would like to write the equivalent of "people usually go to a cinema after going to a restaurant and they usually choose the closest cinema to the restaurant" in American English. I think the following could be the answer:
"people usually go to the movies after going to a restaurant and they usually choose the closest movie theater to the restaurant".
but I am not sure since the term "the movies" seems to refer to a known cinema not any cinema. | 2017/09/23 | [
"https://english.stackexchange.com/questions/411278",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/125298/"
] | ***The movies*** is not limited to a specific known cinema or set of cinemas, though it often refers to such when saying someting like “Let’s go to the movies tonight.”. Your recast of the sentence to use ***the movies*** and ***movie theater*** is fine. | People usually go to dinner and a movie. |
43,308 | As a product manager, I am trying to help my development team by setting up boundaries and policies: what browsers to support, what resolution images must be hosted, how many fonts can we use, and general accessibility best practices. These have all been reoccurring points of contention over the last few months, and we agreed that boundaries would help us move forward with less stress, and with more consistency.
In an effort to help the team make an informed decision, I am doing my best to educate myself on these topics. In the past, UX exchange has been a great help for me with general questions outside of my comfort zone.
My question to you:
How did you inform your policy decisions? A browser policy seems easy enough to tackle using Google Analytics data, but non-data backed answers such as retina and accessibility support, seem tough to justify one way or the other, outside of reading industry articles.
Another issue is that of font support. Anything I should educate myself on to make an informed decision here? One side (design) would like as many fonts as possible, the other (development) would like to limit the usage for page weight issues.
While I understand that this forum may contain a UX bias, it would be great to hear if anyone has undertaken a similar tasks, and if the end result was successful. | 2013/08/05 | [
"https://ux.stackexchange.com/questions/43308",
"https://ux.stackexchange.com",
"https://ux.stackexchange.com/users/31576/"
] | Policy decisions regarding development tend to be an ongoing discussion rather than a few rules set in stone. The fluid nature of IT requires a slightly more agile approach than just a PDF with the company's laws.
Wikis
=====
I'd recommend using a [wiki-style framework](https://en.wikipedia.org/wiki/Wiki_software). A lot of developers tend to be familiar enough with that and will want to contribute to it. It's also incredibly easy to update, and will allow for easy searching.
If you're already using project management software, there's a good chance that the [company behind it](http://www.atlassian.com/software) also [offers wiki-type functionality](http://www.redmine.org/) in one (or some) of their products, which might make it fairly easy to implement.
You can assign editing capabilities yourself, so if you still want to do it on your own, at the very least it offers an easy platform to build and maintain your rules and guidelines.
Development frameworks and CMSes
================================
As for the rules themselves, if you're currently working on 100% custom code, it might be worth looking at some CMSes or frameworks to introduce a lot more structure. This shouldn't be a decision made by you exclusively, but it could be something to discuss with your more senior programmers.
There are free, cheap and expensive frameworks, but what they have in common is that they introduce a lot of structure where there might've been little before.
They are, however, by no means the be-all and end-all of web-development, as they require strict adherence to certain rules to be properly set up, maintained and built upon. This requires a fair bit of education.
---
The font issue
==============
The font related question is slightly tricky, and I'd suggest doing some testing yourself.
I'd say a single web-font (hosted by [Typekit](http://typekit.com/), [Google](http://www.google.com/fonts) or the like, I've used both and am pretty satisfied with them) should be doable, but don't make them use it everywhere as there are definite drawbacks UX-wise. They can be slow or impossible to load on some devices and even on desktops they can cause issues regarding loading-times and jerky display. | Dave,
Could I suggest a slightly different approach. Instead of thinking of these are policies, you can look at this in MVP (minimum viable product) terms. That means for example browser support, you could take a decision and just go with the one browser or say webkit based browsers as the focus. Doesn't mean that it'll not work with others, but the effort is focussed on one.
What this approach does is that instead of building policies based on general market data, you are able to build it based on your customers. You are also able to prioritize and focus the effort on most important areas.
Last, this keeps you more agile as policies are more difficult to change. For this you can decide on the next sprint/dev cycle if the product should support something new or start dropping something.
So the question becomes how to get more data from your target users. For this user research is key.. you could send out surveys, observe your customer feedback, reach out to a few customers for more in-depth discussions etc. |
13,274 | Related to [this question](https://politics.stackexchange.com/questions/688/which-us-states-give-proportional-presidential-electoral-college-votes-to-candid).
It seems that the "winner takes all" electoral college vote in most US states heavily undervalues votes from voters in "safe states". During the recent elections several vote trading sites were arranging 2-1 vote swaps between major parties' supporters in safe states and 3rd party supporters in swing states.
It's also very clear that this policy undermines 3rd party candidates.
The question is:
Why do most states have "winner takes all" policy in electoral college representation? | 2016/11/11 | [
"https://politics.stackexchange.com/questions/13274",
"https://politics.stackexchange.com",
"https://politics.stackexchange.com/users/2457/"
] | >
> It's also very clear that this policy undermines 3rd party candidates.
>
>
>
From the perspective of third-party candidates, all states have winner-take-all policies. It's just that two states, Nebraska and Maine, are winner-take-all by congressional district plus two statewide electors.
But I don't know that it matters too much for president. Yes, it means that parties with many voters across many electoral districts have little opportunity to get any electoral votes. But that doesn't really matter. Winning a few electoral votes doesn't mean anything. The Nebraska/Maine system just makes the geographic districts a bit smaller.
The real change that could help third-party candidates at the presidential level would be ranked voting. One of the chief arguments of the main parties against third-parties is that they can cause the less preferred of the two candidates to be elected. With ranked voting, minor candidate votes role over to the major candidates (except in systems like range and approval voting). Regardless, ranked voting of any flavor allows people to vote for third-party candidates with less worry about tactical voting giving a better result.
Now, geographic congressional districts in the House make things much harder for third parties there.
Anyway, to get back to the main thrust of the question.
>
> What's the reason not all US states have proportional electoral college vote?
>
>
>
The majority of the voters of Maine voted for Hillary Clinton. But only three of the electoral votes went for Clinton and one went for Trump. The net margin is only two. That's less than the three electors provided for Trump by Wyoming. Maine's voters would have had more electoral impact if all the electoral votes had gone to one candidate.
Winner-take-all by congressional district may better represent the actual vote, but winner-take-all by state gives the state more influence. Most states pick influence over representation.
The majority of the people in each state are advantaged by the current method, giving them little reason to change. You would pick representation over influence, but most people don't. Especially since other states have picked influence over representation. If New York went proportional, it would reduce its influence to a net eleven votes or thereabouts. Compare to Florida's twenty-nine. So New York would have essentially made Florida two and a half times as impactful as New York.
Some Republicans in Pennsylvania actually tried this for the 2016 presidential election. It wouldn't have changed the result if they had succeeded, but it would have increased Clinton's electoral vote total and reduced Trump's. Note however that it was Democrats who [opposed](http://www.paaflcio.org/?page_id=878) it. Because most of the time, Democrats do better under the winner-take-all system in Pennsylvania.
So to get your system passed, you would probably have to ally with people doing it for selfish reasons. And you'd need to provide them enough cover with your altruistic proposal to let them succeed.
Maine and Nebraska were never particularly influential in the presidential election. So they had less to lose and could concentrate on the gains to be made in representing the actual vote. Larger states have different incentives.
This is a fundamental weakness in democracy. By giving power to the majority, it gives the majority the power to hide or marginalize minority opinions. This was one reason that the United States originally operated under a limited government--to reduce that. Of course, the Great Depression made people feel that it was more important to have national action than principled limitation.
>
> What would it take to change that policy for future elections?
>
>
>
Each state can pick its own policy for how electors are allocated. In most states, this would be as simple as passing a law.
If you really want to look for a policy though, I'd suggest the [National Popular Vote](http://www.nationalpopularvote.com/). If that were in effect, the election would have gone to the popular vote winner (currently projected as Hillary Clinton). That just requires 105 more electoral votes worth of states to join to take effect.
More importantly, the National Popular Vote proposal doesn't make any changes until it has enough support to make a decisive change. So adopting it doesn't cause elections to be lost because it switches votes in between. And it's even more representative than any division of the electoral college would be, as it counts each vote individually and every one affects the vote. In any district-based system, a large number of votes don't affect the final result.
If you want to encourage third-parties, encourage ranked voting, especially proportional voting at the House level. For president, a national law for nonpartisan primaries with ranked voting and electoral fusion would have the maximum effect. So people could be in the Green party and vote for Jill Stein, Bernie Sanders, Hillary Clinton, Gary Johnson, etc. in that order. After Stein and possibly Sanders were eliminated, Clinton would have had the Green nomination as well as the Democratic nomination. People could vote for their first choice first. Given politics though, this might be more realistically achieved through a constitutional convention.
Proportional voting in the electoral college is more representative but less influential. Going by the national popular vote is even more representative and the way that they have the system set up, everyone switches at once. So no loss of influence. | "Winner-take-all" assignment of Electoral College votes is popular because it gives the dominant party the most leverage at national elections, and there is no rule that says states can't do this.
At first, winner-take-all Electoral voting does make sense over proportional voting (also called "the district system"). After all, how dumb would it be for the winners to freely give away up to half-minus-one of the electoral votes to their opponents?
The winner-take-all system is so obvious that there is just no question to many folks. But it would be dumb indeed to overlook the advantages that Maine and Nebraska already enjoy, simply because they use the district system:
1) Maine and Nebraska get [more attention by national candidates](https://abcnews.go.com/Politics/donald-trump-hillary-clinton-campaigning-maine-nebraska/story?id=41102797) than other similar states. You might say that they are *always swing battleground states.* [Political theorists believe that swing states have extra influence on national policy](https://economics.yale.edu/sites/default/files/ma_mclaren_swing_state_04-16.pdf), so any state that wants more *policy influence* today could grab that through proportional voting.
2) The district system would multiply the number of contested electoral votes. So if major candidates do their campaigning all around the country instead of in select battleground states, it is likely that [the winning congressional candidates will be similar to the winning executive](https://www.jstor.org/stable/27552662?seq=1#page_scan_tab_contents), reducing the time that the president will be at odds with congress.
3) Some people think that there are problems with the Electoral College, and wish for it to get replaced entirely. But that would require a change to the US Constitution, which is very difficult: it requires a huge majority of US states to come to agreement! But there is no such need for consensus with "the district system"... any (or every!) state can assign its next round of electoral votes proportionally (or "by district") without a change to the Constitution. |
7,441 | Not sure how to tag this one so feel free to edit and add tags.
When I initially started graduate school my choice for an area of study was quite nebulous. I had only figured out enough to know that I wanted to do some work involving a lot of category theory. So when I applied to schools I figured I could find some interesting topic to work on since almost anything involves category theory. Now I'm a bit more mature and I have a much better perspective and a much better idea of what I would like to do. My question then is how do I go about finding an adviser working in an area I would like to specialize in and if this person is not at my current school what are my possible courses of action? | 2009/12/01 | [
"https://mathoverflow.net/questions/7441",
"https://mathoverflow.net",
"https://mathoverflow.net/users/-1/"
] | Also, I'd be very careful about being sure one knows what one wants to work on. It may seem like that now, but a lot of people do a lot of bouncing around in grad school, keep an open mind, and remember that almost everyone drifts a little bit in their area of specialty. Having an advisor who doesn't do exactly what you want to, even if you do your thesis on their kind of stuff, doesn't mean you'll have to do that forever. | One thing to keep in mind is that if there is no one at your school, you can often either have a local advisor and an advisor elsewhere, just an advisor elsewhere, or have a local advisor who will sign things while you're really talking to someone else.
As far as finding an advisor at your school, go to talks! Professors (at least here at U. Penn) give talks fairly regularly about what they're working on, and if they aren't, you can often email them to ask if they can talk to you about what they do, and then if what they do is like what you're interested in, you can talk to them about being your advisor. Another way to do it is to talk to professors who've taught classes that you've taken, and try to do a reading course with them. |
7,441 | Not sure how to tag this one so feel free to edit and add tags.
When I initially started graduate school my choice for an area of study was quite nebulous. I had only figured out enough to know that I wanted to do some work involving a lot of category theory. So when I applied to schools I figured I could find some interesting topic to work on since almost anything involves category theory. Now I'm a bit more mature and I have a much better perspective and a much better idea of what I would like to do. My question then is how do I go about finding an adviser working in an area I would like to specialize in and if this person is not at my current school what are my possible courses of action? | 2009/12/01 | [
"https://mathoverflow.net/questions/7441",
"https://mathoverflow.net",
"https://mathoverflow.net/users/-1/"
] | I strongly recommend finding a good advisor (someone who you get along with, who has compatible understanding of how hands-on the advisor will be, who will keep you funded, who can get you a postdoc, who actually wants a student etc.) over choosing a particular subfield. There's too little correlation between what you learn about a subject as a starting graduate student and what it's like to do research in that field for you to make decisions on that basis. That said, it's reasonable to narrow your search to broad fields (say "I want to do algebra") because that still allows a huge range of subfields to work in. As long as your tastes are reasonably broad (and if they're not you should work on broadening them) you and your advisor should be able to find something that interests you both for you to work on no matter what your advisor's particular speciality. | One thing to keep in mind is that if there is no one at your school, you can often either have a local advisor and an advisor elsewhere, just an advisor elsewhere, or have a local advisor who will sign things while you're really talking to someone else.
As far as finding an advisor at your school, go to talks! Professors (at least here at U. Penn) give talks fairly regularly about what they're working on, and if they aren't, you can often email them to ask if they can talk to you about what they do, and then if what they do is like what you're interested in, you can talk to them about being your advisor. Another way to do it is to talk to professors who've taught classes that you've taken, and try to do a reading course with them. |
7,441 | Not sure how to tag this one so feel free to edit and add tags.
When I initially started graduate school my choice for an area of study was quite nebulous. I had only figured out enough to know that I wanted to do some work involving a lot of category theory. So when I applied to schools I figured I could find some interesting topic to work on since almost anything involves category theory. Now I'm a bit more mature and I have a much better perspective and a much better idea of what I would like to do. My question then is how do I go about finding an adviser working in an area I would like to specialize in and if this person is not at my current school what are my possible courses of action? | 2009/12/01 | [
"https://mathoverflow.net/questions/7441",
"https://mathoverflow.net",
"https://mathoverflow.net/users/-1/"
] | Here is some advice that my department wrote some years ago for our undergraduate math majors that might be relevant. It takes a rather extreme stance, but this was done purposely to provide counterpoint to the advice usually given to Ph.D. students in math:
[Choosing a Ph.D. program or advisor](http://www.math.poly.edu/reference/advice.phtml) | One thing to keep in mind is that if there is no one at your school, you can often either have a local advisor and an advisor elsewhere, just an advisor elsewhere, or have a local advisor who will sign things while you're really talking to someone else.
As far as finding an advisor at your school, go to talks! Professors (at least here at U. Penn) give talks fairly regularly about what they're working on, and if they aren't, you can often email them to ask if they can talk to you about what they do, and then if what they do is like what you're interested in, you can talk to them about being your advisor. Another way to do it is to talk to professors who've taught classes that you've taken, and try to do a reading course with them. |
7,441 | Not sure how to tag this one so feel free to edit and add tags.
When I initially started graduate school my choice for an area of study was quite nebulous. I had only figured out enough to know that I wanted to do some work involving a lot of category theory. So when I applied to schools I figured I could find some interesting topic to work on since almost anything involves category theory. Now I'm a bit more mature and I have a much better perspective and a much better idea of what I would like to do. My question then is how do I go about finding an adviser working in an area I would like to specialize in and if this person is not at my current school what are my possible courses of action? | 2009/12/01 | [
"https://mathoverflow.net/questions/7441",
"https://mathoverflow.net",
"https://mathoverflow.net/users/-1/"
] | I strongly recommend finding a good advisor (someone who you get along with, who has compatible understanding of how hands-on the advisor will be, who will keep you funded, who can get you a postdoc, who actually wants a student etc.) over choosing a particular subfield. There's too little correlation between what you learn about a subject as a starting graduate student and what it's like to do research in that field for you to make decisions on that basis. That said, it's reasonable to narrow your search to broad fields (say "I want to do algebra") because that still allows a huge range of subfields to work in. As long as your tastes are reasonably broad (and if they're not you should work on broadening them) you and your advisor should be able to find something that interests you both for you to work on no matter what your advisor's particular speciality. | Also, I'd be very careful about being sure one knows what one wants to work on. It may seem like that now, but a lot of people do a lot of bouncing around in grad school, keep an open mind, and remember that almost everyone drifts a little bit in their area of specialty. Having an advisor who doesn't do exactly what you want to, even if you do your thesis on their kind of stuff, doesn't mean you'll have to do that forever. |
7,441 | Not sure how to tag this one so feel free to edit and add tags.
When I initially started graduate school my choice for an area of study was quite nebulous. I had only figured out enough to know that I wanted to do some work involving a lot of category theory. So when I applied to schools I figured I could find some interesting topic to work on since almost anything involves category theory. Now I'm a bit more mature and I have a much better perspective and a much better idea of what I would like to do. My question then is how do I go about finding an adviser working in an area I would like to specialize in and if this person is not at my current school what are my possible courses of action? | 2009/12/01 | [
"https://mathoverflow.net/questions/7441",
"https://mathoverflow.net",
"https://mathoverflow.net/users/-1/"
] | Also, I'd be very careful about being sure one knows what one wants to work on. It may seem like that now, but a lot of people do a lot of bouncing around in grad school, keep an open mind, and remember that almost everyone drifts a little bit in their area of specialty. Having an advisor who doesn't do exactly what you want to, even if you do your thesis on their kind of stuff, doesn't mean you'll have to do that forever. | Here is some advice that my department wrote some years ago for our undergraduate math majors that might be relevant. It takes a rather extreme stance, but this was done purposely to provide counterpoint to the advice usually given to Ph.D. students in math:
[Choosing a Ph.D. program or advisor](http://www.math.poly.edu/reference/advice.phtml) |
7,441 | Not sure how to tag this one so feel free to edit and add tags.
When I initially started graduate school my choice for an area of study was quite nebulous. I had only figured out enough to know that I wanted to do some work involving a lot of category theory. So when I applied to schools I figured I could find some interesting topic to work on since almost anything involves category theory. Now I'm a bit more mature and I have a much better perspective and a much better idea of what I would like to do. My question then is how do I go about finding an adviser working in an area I would like to specialize in and if this person is not at my current school what are my possible courses of action? | 2009/12/01 | [
"https://mathoverflow.net/questions/7441",
"https://mathoverflow.net",
"https://mathoverflow.net/users/-1/"
] | I strongly recommend finding a good advisor (someone who you get along with, who has compatible understanding of how hands-on the advisor will be, who will keep you funded, who can get you a postdoc, who actually wants a student etc.) over choosing a particular subfield. There's too little correlation between what you learn about a subject as a starting graduate student and what it's like to do research in that field for you to make decisions on that basis. That said, it's reasonable to narrow your search to broad fields (say "I want to do algebra") because that still allows a huge range of subfields to work in. As long as your tastes are reasonably broad (and if they're not you should work on broadening them) you and your advisor should be able to find something that interests you both for you to work on no matter what your advisor's particular speciality. | Here is some advice that my department wrote some years ago for our undergraduate math majors that might be relevant. It takes a rather extreme stance, but this was done purposely to provide counterpoint to the advice usually given to Ph.D. students in math:
[Choosing a Ph.D. program or advisor](http://www.math.poly.edu/reference/advice.phtml) |
39,718 | My small group of friends will be wearing masks. But could COVID-19 be spread by eyes/eyelashes touching the eyepiece? If so, what precautions should I take?
I have a small Starblast scope with an Orion E-Series 7-21mm Zoom Eyepiece which "consists of six lens elements, which are fully multi-coated with anti-reflection coatings for bright and clear views, rich in contrast." Would 70% alcohol wipes damage the coating? Would it matter if it's isopropyl alcohol or ethanol alcohol? | 2020/11/07 | [
"https://astronomy.stackexchange.com/questions/39718",
"https://astronomy.stackexchange.com",
"https://astronomy.stackexchange.com/users/36832/"
] | After calling Orion (they were nice to answer the phone on a Saturday), they said they can't say anything about using alcohol but they do have an [optics cleaning kit](https://www.telescope.com/catalog/product.jsp?productId=5825&gclid=EAIaIQobChMIhYfSr6_x7AIVAtvACh3EhQFSEAQYASABEgKR3PD_BwE) to sell.
So I tried to find the ingredient of this cleaning kit, but instead found this, which is [from the skyandtelescope web page](https://skyandtelescope.org/astronomy-resources/caring-for-your-optics/):
>
> For tougher dirt or stains, various lens-cleaning solutions are
> available. Good ones are pure isopropyl alcohol or methyl alcohol
> (methanol), available in drug stores and hardware stores,
> respectively. Standard, diluted isopropyl rubbing alcohol works well
> too and is easier to find, but avoid alcohol preparations with other
> ingredients that may leave stains. Camera shops sell lens-cleaning
> fluids such as Crystal Clear, which is pure methanol, but you can get
> methanol much cheaper in a hardware store. Also available are “lens
> pens” with a soft, retractable, solvent-impregnated cleaning pad.
>
>
> When cleaning lenses, apply fluid to your cleaning pad, not the lens
> itself. You don't want any fluid to seep in around the lens's edges;
> it may carry dissolved gunk to glass surfaces inside and leave stains
> where you can't reach them.
>
>
>
And this [cloudynights web page](https://www.cloudynights.com/articles/cat/articles/how-to/cleaning-eyepieces-r499) supports this information:
>
> The cleaning solution I use is 91% pure isopropyl alcohol. A pint
> bottle is less than two dollars, and is useful to have around the
> house anyway. Q-Tips are the 100% cotton type. They are used to apply
> the cleaning solution, and remove the excess.
>
>
> A word on the alcohol. The 91% pure isopropyl alcohol contains two
> ingredients on the label, alcohol and purified water. Alcohol
> evaporate easily at room temperature, and leaves no residue. Purified
> water will not leave a residue, but will take longer to evaporate.
> Some rubbing alcohols may contain lanolin or other oils to prevent the
> alcohol from excessively drying the skin. These should be avoided.
> Read the label. We want alcohol and water as the only ingredients.
>
>
>
So in conclusion, 90%+ isopropyl alcohol (the other 10% being water) is actually recommended to use on eyepieces *after* dust is removed and if the alcohol is applied to a cleaning material to wipe on the eyepiece, *not directly* onto the eyepiece so that it does not seep through the lens. This is wonderful because alcohol kills any virus and bacteria as a bonus!
What I plan to do will be taping a big piece of Saran wrap that covers the eyepiece, and use a new piece each time. It'll be a big hassle, but I don't have enough time to get the 90% or pure isopropyl alcohol now.
---
Update: The little gathering was a success! I initially had a rubber band to hold the Saran wrap down, but after 2 minutes it got dropped into the grass and couldn't be found. Since I wanted to reduce any wrinkles in the Saran wrap and hold it taut, using tape was not practical, so I ended up using my hands to hold a large sheet of wrap for each family. We saw Jupiter, Saturn, and Mars!
---
Update #2: This is the response from Orion, and they discourage using alcohol, so be cautious, maybe test it on a tiny spot first with a tiny amount.
>
> Original Inquiry: Can I use alcohol
> wipes to disinfect the multi coated Orion E Series 7-21mm Zoom
> eyepiece?
>
>
> Thank you for contacting Orion Telescopes & Binoculars. We do not
> recommend using alcohol wipes on any optics , as this could damage the
> coatings on the lenses. You can on the outside of the lens but not
> anywhere near the glass lens. We would recommend cleaning fluid for
> the lens.
>
>
> <https://www.telescope.com/Orion/Orion-Optics-Cleaning-Fluid-for-Coated-Lenses/rc/2160/p/5810.uts?keyword=fluid>
>
>
> Please do not hesitate to contact us if you have any further questions
> or concerns!
>
>
> Thank you, Leanne Customer Service Orion Telescopes & Binoculars
>
>
> | The Celestron video [#DearCelestron Series - How to Sanitize your Optics](https://youtu.be/xJglihE9-Lk) addresses this nicely.
>
> Product Manager John Riutta (responsible for binoculars, spotting scopes, microscopes, and outdoor electronics at Celestron) demonstrates how to clean your binoculars, telescope, and microscopes between users.
>
>
>
In addition to gloves and masks the demonstrate the use of 75% isopropyl alcohol from a drug store or pharmacy and instruct us not to use anything from the liquor cabinet.
I will note however that where I live if you go to the corner drug store and buy a two (US) dollar 1 liter bottle of alcohol, it is 70% Ethanol!
The alcohol is applied to touch surfaces, how to clean eyepieces, especially the glass, is not shown for the binoculars.
For microscopes and telescopes, a 1:48 mixture of bleach to water is mixed and applied with a cotton swab or bud, including to the eyepieces BUT NOT THE GLASS OPTICAL SURFACES THEMSELVES to avoid risk of degradation of the performance.
That's all that's available here. |
9,187,921 | I have a solid understanding of OOP and its idioms in Java.
Now I am coding in python, and I am in a situation where having multiple inheritance may be useful, however (and this may be due to years of java code), i am reluctant to do it and I am considering using composition instead of inheritance in order to avoid potential conflicts with potential equal method names.
Question is, am i being to strict or too java focused regarding this thing. Or using multiple inheritance in python is not only possible but also encouraged.
Thanks for your time :) | 2012/02/08 | [
"https://Stackoverflow.com/questions/9187921",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/983386/"
] | The question of "inheritance vs. composition" comes down to an attempt to solve the problem of reusable code. You don't want to have duplicated code all over your code, since that's not clean and efficient. Inheritance solves this problem by creating a mechanism for you to have implied features in base classes. Composition solves this by giving you modules and the ability to simply call functions in other classes.
If both solutions solve the problem of reuse, then which one is appropriate in which situations? The answer is incredibly subjective, but I'll give you my three guidelines for when to do which:
1. Avoid multiple inheritance at all costs, as it's too complex to be useful reliably. If you're stuck with it, then be prepared to know the class hierarchy and spend time finding where everything is coming from.
2. Use composition to package up code into modules that is used in many different unrelated places and situations.
3. Use inheritance only when there are clearly related reusable pieces of code that fit under a single common concept, or if you have to because of something you're using.
However, do not be a slave to these rules. The thing to remember about object oriented programming is that it is entirely a social convention programmers have created to package and share code. Because it's a social convention, but one that's codified in Python, you may be forced to avoid these rules because of the people you work with. In that case, find out how they use things and then just adapt to the situation.
More details can be found on: <http://learnpythonthehardway.org/book/ex44.html> | I would still prefer composition to inheritance, whether multiple or single. Really getting into duck typing is a bit like having loads of implicit interfaces everywhere, so you don't even need inheritance (or abstract classes) very much at all in Python. But that's **prefer** composition, not **never use inheritance**. If inheritance (even multiple) is a good fit and composition isn't, then use inheritance. |
6,291,210 | I'm developing a web based application where I need to overlay some color layers over each country or city . I know that I can use Google maps but the problem I have is that the server where we're deploying the app doesn't have access to the internet .
so I need a map component like Google maps which I can use it offline , can any one suggest any component that I can use ? | 2011/06/09 | [
"https://Stackoverflow.com/questions/6291210",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/180260/"
] | You might check out openstreetmap. There you could download the planet.xml file for the whole world or specific files only for the regions you want to serve. Good material can be found also here: www.geofabrik.de
Then you will have to set up your own tileserver, which will crunch png-tiles for the xml-files provided and store all png-maps on your local harddrive.
The tileserver will probably have some web-api also. So your tileserver may run on localhost:8080 or another port, and your website runs maybe on apache on port 80.
Then you would use some web-framework to access your own tileserver. This framework would be
probably <http://openlayers.org/> which can also draw shapes onto maps.
As a tileserver-location, you would add the address to your local installed tileserver. Openlayers will then receive the crunched tiles and do some stuff with it.
So, you have to at least once get some information from the internet (planet.xml) and crunch your data. But be aware that this crunching might take a long time depending on how many countries you want to serve and also these png-files will take a lot of space.
Check out openstreetmap.org how to do all this, including some numbers.
Maybe it is even possible just to download the crunched tiles from openstreetmap and put them in a specific order and fire up a tileserver pointing to these tiles. This would probably much easier.
You cannot download the Google-Maps tiles and serve them in your own tile-server, since there is a license restriction on them.
Greetings,
Jan | You're going to find that difficult because the map data alone could take up several hundred megabytes of space to store. The [OS provides offline mapping](http://www.ordnancesurvey.co.uk/oswebsite/products/os-opendata.html) within the UK which they provide free but it is limited and you'll have to manually integrate it into your site.
Having a web-based application that can't access the internet seems a bit daft to me, surely there's a way around that? |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.