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 |
|---|---|---|---|---|---|
119,096 | I'm working with a site with member accounts. Those accounts can have credits attached (say from a referral incentive, a voucher, or a prize). The credits can then be spent in the site's shop - they're a dollar value in the same currency the site uses.
I am wondering how to handle a user closing their account while it... | 2018/06/27 | [
"https://ux.stackexchange.com/questions/119096",
"https://ux.stackexchange.com",
"https://ux.stackexchange.com/users/30287/"
] | While the existing thoughts here are well, there are legal dimensions that may redefine everything you're thinking about — and complicating #1
Credits, in some states, are like gift cards. The value cannot expire and you cannot just drop it without giving the person a way to transfer it into a 'movable' form - like a ... | Why not throw in a third choice:
*#3* - Close the account and generate a one-time use coupon code with the credit balance value (and e-mail it to the user).
If the user decides to come back he/she can top his/her account up with the coupon code. |
119,096 | I'm working with a site with member accounts. Those accounts can have credits attached (say from a referral incentive, a voucher, or a prize). The credits can then be spent in the site's shop - they're a dollar value in the same currency the site uses.
I am wondering how to handle a user closing their account while it... | 2018/06/27 | [
"https://ux.stackexchange.com/questions/119096",
"https://ux.stackexchange.com",
"https://ux.stackexchange.com/users/30287/"
] | I'll offer another option that hasn't been suggested.
If a user wishes to close their account, just *disable* it rather than deleting it. The account and all of its credits remain intact, but it is locked away somewhere where it is not used or accessed. If the user chooses to come back to the site, they can reactivate... | If a user wants to close their account, assign the credit to the e-mail address.
Whenever they decide to sign up again (same e-mail address), assign this credit back to their account.
Notify them before closing their account. |
119,096 | I'm working with a site with member accounts. Those accounts can have credits attached (say from a referral incentive, a voucher, or a prize). The credits can then be spent in the site's shop - they're a dollar value in the same currency the site uses.
I am wondering how to handle a user closing their account while it... | 2018/06/27 | [
"https://ux.stackexchange.com/questions/119096",
"https://ux.stackexchange.com",
"https://ux.stackexchange.com/users/30287/"
] | Why not throw in a third choice:
*#3* - Close the account and generate a one-time use coupon code with the credit balance value (and e-mail it to the user).
If the user decides to come back he/she can top his/her account up with the coupon code. | First, you have State laws. In some cases you are not allowed to extinguish (read: pocket) stored value, nor are you allowed to have the same effect by "nibbling it down" with monthly, storage or inactivity fees. For instance that applies to pretty much every retail gift card (McDonalds, Target, AMC theaters, etc. Beca... |
119,096 | I'm working with a site with member accounts. Those accounts can have credits attached (say from a referral incentive, a voucher, or a prize). The credits can then be spent in the site's shop - they're a dollar value in the same currency the site uses.
I am wondering how to handle a user closing their account while it... | 2018/06/27 | [
"https://ux.stackexchange.com/questions/119096",
"https://ux.stackexchange.com",
"https://ux.stackexchange.com/users/30287/"
] | I would go with the first Option "Warn the user that closing their account will forfeit their credit" but as you mentioned this might create frustration when it comes to real money, even its only cents.
You can reduce this frustration by donating the money to a charity, therefore you can reinforce your brand image als... | I'll offer another option that hasn't been suggested.
If a user wishes to close their account, just *disable* it rather than deleting it. The account and all of its credits remain intact, but it is locked away somewhere where it is not used or accessed. If the user chooses to come back to the site, they can reactivate... |
14,294 | Plants turn Carbon Dioxide into Oxygen, that is not a greenhouse gas. But Carbon Dioxide is.
Therefore, wouldn't plants cool the area? | 2018/05/29 | [
"https://earthscience.stackexchange.com/questions/14294",
"https://earthscience.stackexchange.com",
"https://earthscience.stackexchange.com/users/13062/"
] | Both mega-annum(Ma) and mega-year(Myr) designate one million years. The distinction is that Ma is used to designate the time before present or geohistoric dates and Myr to designate a duration or span of time. So if you want to say a rock is dated to 10 million years before the present you would use 10 Ma, and if you w... | Annum and year are not the exact same thing. The exact length of a year depends on what exactly you are measuring, whether distance between perihelions, distance between solstices, etc. It also varies because of the gravitation of other planets. These effects are minor, but enough that measuring units of years is trick... |
14,294 | Plants turn Carbon Dioxide into Oxygen, that is not a greenhouse gas. But Carbon Dioxide is.
Therefore, wouldn't plants cool the area? | 2018/05/29 | [
"https://earthscience.stackexchange.com/questions/14294",
"https://earthscience.stackexchange.com",
"https://earthscience.stackexchange.com/users/13062/"
] | **annum (ka, Ma, Ga)**
Time before present. A point of time in the geological past, measured backwards from now. Often, “now” is defined as the year 1950.
**year (kyr, Myr, Gyr)**
A measure of duration, not necessarily age and not necessarily measured from the present time.
**examples**
1. The fossil is dated to 1... | Annum and year are not the exact same thing. The exact length of a year depends on what exactly you are measuring, whether distance between perihelions, distance between solstices, etc. It also varies because of the gravitation of other planets. These effects are minor, but enough that measuring units of years is trick... |
19,635 | How can I remove pimples on my face?
Sometimes these pimples clearly appear on my face.So I can't makeup on any event. You can tell me how can remove it. | 2018/11/27 | [
"https://lifehacks.stackexchange.com/questions/19635",
"https://lifehacks.stackexchange.com",
"https://lifehacks.stackexchange.com/users/26095/"
] | It would be nice to have more information about your problem. Do you have them how often? They're inflamed bumps or white heads? Either way, I suggest you to find a dermatologist. It's the only way you can discover the source of your skin condition. Until then I can give you some advice on skin care:
>
> Previous Car... | Take one piece of garlic and rub it on pimples for two minutes then you will see the 50 % result in just two minutes. |
700,471 | I am trying to understand in a rigorous way why an object falls over when its COM falls outside its base of support.
The following picture illustrates in crude terms why the center-of-mass causes an object to topple.
[](https://i.stack.imgur.com/Pe49... | 2022/03/24 | [
"https://physics.stackexchange.com/questions/700471",
"https://physics.stackexchange.com",
"https://physics.stackexchange.com/users/66165/"
] | First of all electrons have negative charge while positrons have a positive charge so from the start they both have a fixed quantum number attached to them that differentiates them.
Second they never occupy a single state in that process, they literally cease to exist while becoming photons (radiation). In the process... | The answer is that they do not occupy the same state. The state would be defined by them having exactly the same quantum numbers but trivially one of the quantum numbers for these two particles is different: Charge.
Another way to see thins is two phrase the pauli exclusion principle:
Two **identical** Fermions cannot... |
208,691 | I have a dataset of 30 social variables such as Facebook Likes, Posts, Comments, etc. I would like to see if these variables predict Website Views.
MY problem is I only have 3 months of data- or 3 data points. Thus I have a 3 by 30 dataset. My question is, how do I model with such few data points but lots of variable... | 2016/04/21 | [
"https://stats.stackexchange.com/questions/208691",
"https://stats.stackexchange.com",
"https://stats.stackexchange.com/users/107127/"
] | You have insufficient data. Start with the [Rules of thumb for minimum sample size for multiple regression](https://stats.stackexchange.com/questions/10079/rules-of-thumb-for-minimum-sample-size-for-multiple-regression) thread, with thirty variables you would need at least a few hundred samples. With three samples, you... | Yes, as Nick mentions, it is definitely a stretch for using models with assumptions. If you just want to predict, I would suggest that you use nearest neighbor method as a non-parametric method for prediction.
If you have little more points, you can use partial least squares (PLS) if more variables than data points.
... |
10,904 | What happens when I play Procession and use Throne Room as an action card affected by Procession?
Let me give you an example. I have a hand of:
* Procession
* Throne room
* Bridge
* Village
* Silver
I play Throne room within Procession and then:
1. Do I play only one action card in Throne room, e.g. Bridge, and it ... | 2013/01/24 | [
"https://boardgames.stackexchange.com/questions/10904",
"https://boardgames.stackexchange.com",
"https://boardgames.stackexchange.com/users/1731/"
] | The Procession rules state:
>
> If you Procession a Procession, you will play one Action twice, trash
> it, gain an Action card costing more, then play another Action twice,
> trash it, gain an Action card costing more, then trash the Procession
> and gain an Action costing more than it.
>
>
>
There is no reas... | Regardless of whether you throne room your procession, or procession your throne room, you'll play the bridge and village twice if you play them. Some key things to note:
* If you Throne Room first you will play Procession twice, trashing both the village (getting a 4 cost) and bridge ( getting a printed 5 cost card, ... |
220,681 | When I'm riding the horse in Witcher 3, the camera keeps sliding up so that I'm eventually facing downwards, and can barely see what's in front of me. I'm playing the game on PC but with an Xbox 360 controller.
Anyone know why it's doing this, and how I can fix it?
Something I noticed. Normally, on PC, you can switch... | 2015/05/24 | [
"https://gaming.stackexchange.com/questions/220681",
"https://gaming.stackexchange.com",
"https://gaming.stackexchange.com/users/14598/"
] | After some more researching, I found an interesting post on [GameFAQs](http://www.gamefaqs.com/boards/699808-the-witcher-3-wild-hunt/71828230?page=3#35), namely:
>
> I spent a while on this. I searched everything and even fought it once. I had to reread my bestiary to trigger the body burning interaction.
>
>
>
A... | I just completed this quest last night.
It sounds like you did some stuff out of order and maybe that's gummed up the works. When I arrived at the village I had already spoken to the quest giver and then I used witcher senses to discover the diary and pull up the skeleton before entering the well.
You're prompted to ... |
220,681 | When I'm riding the horse in Witcher 3, the camera keeps sliding up so that I'm eventually facing downwards, and can barely see what's in front of me. I'm playing the game on PC but with an Xbox 360 controller.
Anyone know why it's doing this, and how I can fix it?
Something I noticed. Normally, on PC, you can switch... | 2015/05/24 | [
"https://gaming.stackexchange.com/questions/220681",
"https://gaming.stackexchange.com",
"https://gaming.stackexchange.com/users/14598/"
] | I too got bugged up on this quest as I stumbled on the village just exploring. I looted all the buildings and without much thought tried to jump in the well and subsequently found the bracelet. Then spent hours running around in circles trying to find evidence of the wraith after I went and talk to the guy.
Turns out ... | I just completed this quest last night.
It sounds like you did some stuff out of order and maybe that's gummed up the works. When I arrived at the village I had already spoken to the quest giver and then I used witcher senses to discover the diary and pull up the skeleton before entering the well.
You're prompted to ... |
220,681 | When I'm riding the horse in Witcher 3, the camera keeps sliding up so that I'm eventually facing downwards, and can barely see what's in front of me. I'm playing the game on PC but with an Xbox 360 controller.
Anyone know why it's doing this, and how I can fix it?
Something I noticed. Normally, on PC, you can switch... | 2015/05/24 | [
"https://gaming.stackexchange.com/questions/220681",
"https://gaming.stackexchange.com",
"https://gaming.stackexchange.com/users/14598/"
] | After some more researching, I found an interesting post on [GameFAQs](http://www.gamefaqs.com/boards/699808-the-witcher-3-wild-hunt/71828230?page=3#35), namely:
>
> I spent a while on this. I searched everything and even fought it once. I had to reread my bestiary to trigger the body burning interaction.
>
>
>
A... | Hm. I summoned the Noonwraith by burning the corpse, not by returning at noon - seems like your quest might be bugged.
From my journal, it seems that the steps to completion are as follows:
* Ask Odolan about the contract.
* Find the spirit that haunts the well.
* Use your Witcher Senses to examine the well.
* Find ... |
220,681 | When I'm riding the horse in Witcher 3, the camera keeps sliding up so that I'm eventually facing downwards, and can barely see what's in front of me. I'm playing the game on PC but with an Xbox 360 controller.
Anyone know why it's doing this, and how I can fix it?
Something I noticed. Normally, on PC, you can switch... | 2015/05/24 | [
"https://gaming.stackexchange.com/questions/220681",
"https://gaming.stackexchange.com",
"https://gaming.stackexchange.com/users/14598/"
] | I too got bugged up on this quest as I stumbled on the village just exploring. I looted all the buildings and without much thought tried to jump in the well and subsequently found the bracelet. Then spent hours running around in circles trying to find evidence of the wraith after I went and talk to the guy.
Turns out ... | Hm. I summoned the Noonwraith by burning the corpse, not by returning at noon - seems like your quest might be bugged.
From my journal, it seems that the steps to completion are as follows:
* Ask Odolan about the contract.
* Find the spirit that haunts the well.
* Use your Witcher Senses to examine the well.
* Find ... |
220,681 | When I'm riding the horse in Witcher 3, the camera keeps sliding up so that I'm eventually facing downwards, and can barely see what's in front of me. I'm playing the game on PC but with an Xbox 360 controller.
Anyone know why it's doing this, and how I can fix it?
Something I noticed. Normally, on PC, you can switch... | 2015/05/24 | [
"https://gaming.stackexchange.com/questions/220681",
"https://gaming.stackexchange.com",
"https://gaming.stackexchange.com/users/14598/"
] | After some more researching, I found an interesting post on [GameFAQs](http://www.gamefaqs.com/boards/699808-the-witcher-3-wild-hunt/71828230?page=3#35), namely:
>
> I spent a while on this. I searched everything and even fought it once. I had to reread my bestiary to trigger the body burning interaction.
>
>
>
A... | I too got bugged up on this quest as I stumbled on the village just exploring. I looted all the buildings and without much thought tried to jump in the well and subsequently found the bracelet. Then spent hours running around in circles trying to find evidence of the wraith after I went and talk to the guy.
Turns out ... |
220,681 | When I'm riding the horse in Witcher 3, the camera keeps sliding up so that I'm eventually facing downwards, and can barely see what's in front of me. I'm playing the game on PC but with an Xbox 360 controller.
Anyone know why it's doing this, and how I can fix it?
Something I noticed. Normally, on PC, you can switch... | 2015/05/24 | [
"https://gaming.stackexchange.com/questions/220681",
"https://gaming.stackexchange.com",
"https://gaming.stackexchange.com/users/14598/"
] | After some more researching, I found an interesting post on [GameFAQs](http://www.gamefaqs.com/boards/699808-the-witcher-3-wild-hunt/71828230?page=3#35), namely:
>
> I spent a while on this. I searched everything and even fought it once. I had to reread my bestiary to trigger the body burning interaction.
>
>
>
A... | You have to enter the well to retrieve the bracelet. It's almost right where you land after jumping down. Use your Witcher sense - the red object is likely to be the whole left arm, climb up some where cross over the other pond and swim all the way the other end to surface up. Swim quickly as you'll run out of breathe ... |
220,681 | When I'm riding the horse in Witcher 3, the camera keeps sliding up so that I'm eventually facing downwards, and can barely see what's in front of me. I'm playing the game on PC but with an Xbox 360 controller.
Anyone know why it's doing this, and how I can fix it?
Something I noticed. Normally, on PC, you can switch... | 2015/05/24 | [
"https://gaming.stackexchange.com/questions/220681",
"https://gaming.stackexchange.com",
"https://gaming.stackexchange.com/users/14598/"
] | After some more researching, I found an interesting post on [GameFAQs](http://www.gamefaqs.com/boards/699808-the-witcher-3-wild-hunt/71828230?page=3#35), namely:
>
> I spent a while on this. I searched everything and even fought it once. I had to reread my bestiary to trigger the body burning interaction.
>
>
>
A... | to stop the disappearing use the sign that sets the trap. the wraith will turn to human form. read this in the diary, found after looting the near by houses. I cannot find the ingredient for the potion that should be taking before fighting the wraith.In the bestiary, when clicking on the wraith, there's a drop down tha... |
220,681 | When I'm riding the horse in Witcher 3, the camera keeps sliding up so that I'm eventually facing downwards, and can barely see what's in front of me. I'm playing the game on PC but with an Xbox 360 controller.
Anyone know why it's doing this, and how I can fix it?
Something I noticed. Normally, on PC, you can switch... | 2015/05/24 | [
"https://gaming.stackexchange.com/questions/220681",
"https://gaming.stackexchange.com",
"https://gaming.stackexchange.com/users/14598/"
] | I too got bugged up on this quest as I stumbled on the village just exploring. I looted all the buildings and without much thought tried to jump in the well and subsequently found the bracelet. Then spent hours running around in circles trying to find evidence of the wraith after I went and talk to the guy.
Turns out ... | You have to enter the well to retrieve the bracelet. It's almost right where you land after jumping down. Use your Witcher sense - the red object is likely to be the whole left arm, climb up some where cross over the other pond and swim all the way the other end to surface up. Swim quickly as you'll run out of breathe ... |
220,681 | When I'm riding the horse in Witcher 3, the camera keeps sliding up so that I'm eventually facing downwards, and can barely see what's in front of me. I'm playing the game on PC but with an Xbox 360 controller.
Anyone know why it's doing this, and how I can fix it?
Something I noticed. Normally, on PC, you can switch... | 2015/05/24 | [
"https://gaming.stackexchange.com/questions/220681",
"https://gaming.stackexchange.com",
"https://gaming.stackexchange.com/users/14598/"
] | I too got bugged up on this quest as I stumbled on the village just exploring. I looted all the buildings and without much thought tried to jump in the well and subsequently found the bracelet. Then spent hours running around in circles trying to find evidence of the wraith after I went and talk to the guy.
Turns out ... | to stop the disappearing use the sign that sets the trap. the wraith will turn to human form. read this in the diary, found after looting the near by houses. I cannot find the ingredient for the potion that should be taking before fighting the wraith.In the bestiary, when clicking on the wraith, there's a drop down tha... |
73,838 | I am planning to buy a bench drill (something like [that one](http://uk.farnell.com/jsp/search/productdetail.jsp?sku=1075578)) to make small hole, 0.5-1.0 mm.
I recently used a Bosh drill and 1mm steel drill bit to make a hole on a FP4 fiberglass board, but the drill bit broke on the second hole drilling process.
N... | 2013/06/23 | [
"https://electronics.stackexchange.com/questions/73838",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/23393/"
] | Whatever size drill press you use, from a small Dremel press mount to a floor-standing shop drill press, you want to make sure that the chuck does not wobble. I originally used a cheap benchtop drill press, but the chuck wobbles about 1/64" (.4 mm), which is inadequate for most PCB drilling.
 (cost about 5 EUR). It feels like it can stay sharp forever. In my experience it was like new with over 500 holes. I have broke few drill bits as well... |
73,838 | I am planning to buy a bench drill (something like [that one](http://uk.farnell.com/jsp/search/productdetail.jsp?sku=1075578)) to make small hole, 0.5-1.0 mm.
I recently used a Bosh drill and 1mm steel drill bit to make a hole on a FP4 fiberglass board, but the drill bit broke on the second hole drilling process.
N... | 2013/06/23 | [
"https://electronics.stackexchange.com/questions/73838",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/23393/"
] | Whatever size drill press you use, from a small Dremel press mount to a floor-standing shop drill press, you want to make sure that the chuck does not wobble. I originally used a cheap benchtop drill press, but the chuck wobbles about 1/64" (.4 mm), which is inadequate for most PCB drilling.
) to make small hole, 0.5-1.0 mm.
I recently used a Bosh drill and 1mm steel drill bit to make a hole on a FP4 fiberglass board, but the drill bit broke on the second hole drilling process.
N... | 2013/06/23 | [
"https://electronics.stackexchange.com/questions/73838",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/23393/"
] | I have exactly same PROXXON bench drill at home. Most of the times I drill with [0.65mm HAM 380](http://www.ham-tools.com/fileadmin/templates_ham/Download/HAM_Prima.pdf) (cost about 5 EUR). It feels like it can stay sharp forever. In my experience it was like new with over 500 holes. I have broke few drill bits as well... | Whatever the material, make sure you use a drill press to make the holes. Without a drill press, the slightest bump will break the drill. That is probably what happened in your case. That is specially true for carbide drill bits, that are really brittle.
As a hobbist, I use a Dremel Workstation 220 (drill press adapte... |
3,506,125 | I remember reading that Jacobi once said:
>
> If Cauchy says he proved something, you can be 50% sure that he actually did. If Gauss says he proved something, you can be mostly sure that he actually did. But if (insert name) says he proved something, then you can be 100% sure that he actually did.
>
>
>
Does som... | 2020/01/12 | [
"https://math.stackexchange.com/questions/3506125",
"https://math.stackexchange.com",
"https://math.stackexchange.com/users/-1/"
] | I suppose that you have [this quotation](http://mathshistory.st-andrews.ac.uk/Quotations/Jacobi.html) in mind:
>
> “Dirichlet alone, not I, nor Cauchy, nor Gauss knows what a completely rigorous mathematical proof is. Rather we learn it first from him. When Gauss says that he has proved something, it is very clear; w... | The original is in a letter from Jacobi to Alexander von Humboldt dated December 21, 1846:
>
> Dirichlet allein, nicht ich, nicht Cauchy, nicht Gauß, weiß, was ein
> vollkommen strenger Beweis ist, sondern wir lernen es erst von ihm.
> Wenn Gauß sagt, er habe etwas bewiesen, so ist es mir sehr
> wahrscheinlich, we... |
385,993 | I'm a bit annoyed by this. Someone has decided to start a vote-to-close as duplicate on a canonical Q&A that I created:
[What does "possible lossy conversion" mean and how do I fix it?](https://stackoverflow.com/questions/51632152/what-does-possible-lossy-conversion-mean-and-how-do-i-fix-it)
Not only that, but they a... | 2019/06/12 | [
"https://meta.stackoverflow.com/questions/385993",
"https://meta.stackoverflow.com",
"https://meta.stackoverflow.com/users/139985/"
] | Just wait for the close vote to expire. It's a single user and a single vote.
If the question actually got closed, then we'd have to discuss if that's appropriate and if you should reopen yourself. But since it's only one vote, we can ignore it, and hope the vote expires, which probably will happen (most votes on old ... | Since the question you asked is in fact a duplicate of the question it is proposed as a duplicate as, you should confirm the closure of the question, and not vote to reopen a question that is in fact a duplicate.
That you "wanted to create a canonical" doesn't make your question not a duplicate. That your question wa... |
385,993 | I'm a bit annoyed by this. Someone has decided to start a vote-to-close as duplicate on a canonical Q&A that I created:
[What does "possible lossy conversion" mean and how do I fix it?](https://stackoverflow.com/questions/51632152/what-does-possible-lossy-conversion-mean-and-how-do-i-fix-it)
Not only that, but they a... | 2019/06/12 | [
"https://meta.stackoverflow.com/questions/385993",
"https://meta.stackoverflow.com",
"https://meta.stackoverflow.com/users/139985/"
] | It was a valid duplicate suggestion.
However, the question that you created as a canonical is a better question with a better answer, and it is long-standing convention that the *best* question be kept as the “main” question. Duplicate closure need not take the age of the question into account.
Therefore, I have clos... | Just wait for the close vote to expire. It's a single user and a single vote.
If the question actually got closed, then we'd have to discuss if that's appropriate and if you should reopen yourself. But since it's only one vote, we can ignore it, and hope the vote expires, which probably will happen (most votes on old ... |
385,993 | I'm a bit annoyed by this. Someone has decided to start a vote-to-close as duplicate on a canonical Q&A that I created:
[What does "possible lossy conversion" mean and how do I fix it?](https://stackoverflow.com/questions/51632152/what-does-possible-lossy-conversion-mean-and-how-do-i-fix-it)
Not only that, but they a... | 2019/06/12 | [
"https://meta.stackoverflow.com/questions/385993",
"https://meta.stackoverflow.com",
"https://meta.stackoverflow.com/users/139985/"
] | It was a valid duplicate suggestion.
However, the question that you created as a canonical is a better question with a better answer, and it is long-standing convention that the *best* question be kept as the “main” question. Duplicate closure need not take the age of the question into account.
Therefore, I have clos... | Since the question you asked is in fact a duplicate of the question it is proposed as a duplicate as, you should confirm the closure of the question, and not vote to reopen a question that is in fact a duplicate.
That you "wanted to create a canonical" doesn't make your question not a duplicate. That your question wa... |
6,115 | I want to photograph some local gigs to build up a portfolio. Has anyone any tips on what kit, and techniques would give the best results? The gigs would be mostly rock bands.
Here's my kit:
* Nikon D70S
* AFS Nikkor DX 18-70mm 3.5-4.5
* Tamron 70-300mm 4-5.6
Any help most appreciated,
Jonesy | 2010/12/28 | [
"https://photo.stackexchange.com/questions/6115",
"https://photo.stackexchange.com",
"https://photo.stackexchange.com/users/2533/"
] | Given the equipment you have listed, I would say an entire kit replacement might be in order. The Nikon D70s looks like a decent DSLR, however it does not have the greatest high-ISO performance. Higher ISO capability with low noise would be a huge boon for photographing concerts (which tend to be quite dark.) Something... | You're not going to have much fun with those variable aperture lenses unless you're in really well lit venues. Wide apertures rule in gig photography.
For smaller venues, a 50mm f/1.8 will get you started for about £100. Next step would be a 24-70mm f/2.8 to give you a bit more flexibility (doesn't have to be Nikon - ... |
6,115 | I want to photograph some local gigs to build up a portfolio. Has anyone any tips on what kit, and techniques would give the best results? The gigs would be mostly rock bands.
Here's my kit:
* Nikon D70S
* AFS Nikkor DX 18-70mm 3.5-4.5
* Tamron 70-300mm 4-5.6
Any help most appreciated,
Jonesy | 2010/12/28 | [
"https://photo.stackexchange.com/questions/6115",
"https://photo.stackexchange.com",
"https://photo.stackexchange.com/users/2533/"
] | Given the equipment you have listed, I would say an entire kit replacement might be in order. The Nikon D70s looks like a decent DSLR, however it does not have the greatest high-ISO performance. Higher ISO capability with low noise would be a huge boon for photographing concerts (which tend to be quite dark.) Something... | I have a Canon 50D and at ISO 1600 with my Canon 17-55mm f/2.8 IS USM lens I can barely push it beyond 1/80th to get enough light in for most of the venues I shoot at (most aren't amazingly well lit, that's for sure).
The unfortunate problem I face is that ISO 1600 is really as far as I'm aesthetically allowing myself... |
6,115 | I want to photograph some local gigs to build up a portfolio. Has anyone any tips on what kit, and techniques would give the best results? The gigs would be mostly rock bands.
Here's my kit:
* Nikon D70S
* AFS Nikkor DX 18-70mm 3.5-4.5
* Tamron 70-300mm 4-5.6
Any help most appreciated,
Jonesy | 2010/12/28 | [
"https://photo.stackexchange.com/questions/6115",
"https://photo.stackexchange.com",
"https://photo.stackexchange.com/users/2533/"
] | You're not going to have much fun with those variable aperture lenses unless you're in really well lit venues. Wide apertures rule in gig photography.
For smaller venues, a 50mm f/1.8 will get you started for about £100. Next step would be a 24-70mm f/2.8 to give you a bit more flexibility (doesn't have to be Nikon - ... | I have a Canon 50D and at ISO 1600 with my Canon 17-55mm f/2.8 IS USM lens I can barely push it beyond 1/80th to get enough light in for most of the venues I shoot at (most aren't amazingly well lit, that's for sure).
The unfortunate problem I face is that ISO 1600 is really as far as I'm aesthetically allowing myself... |
716,826 | ### Duplicate
>
> [C# && SMS Tags](https://stackoverflow.com/questions/tagged/c%23%20sms)
>
>
>
I am working in the .net framework 1.1 .. from my application i need to send a SMS to a mobile. Is it possible? | 2009/04/04 | [
"https://Stackoverflow.com/questions/716826",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/63213/"
] | There are alot of SMS-gateway services for bulk-sms senders. All of them provide a (custom) API. Ususaly you just craft a special HTTP request. These API's can be used in any language, so .net as well.
Each carrier has its own rates, so do some price comparison. I don't know in which country you are (something Scandi... | If you need to send a SMS to a phone, you'll probably need the services of a [SMS gateway](http://en.wikipedia.org/wiki/SMS_gateway). However, if the volume of messages you need to send is not that high and you can foot the cost per SMS yourself, you could look at how to use your phone as a modem over USB or COM and se... |
716,826 | ### Duplicate
>
> [C# && SMS Tags](https://stackoverflow.com/questions/tagged/c%23%20sms)
>
>
>
I am working in the .net framework 1.1 .. from my application i need to send a SMS to a mobile. Is it possible? | 2009/04/04 | [
"https://Stackoverflow.com/questions/716826",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/63213/"
] | There are alot of SMS-gateway services for bulk-sms senders. All of them provide a (custom) API. Ususaly you just craft a special HTTP request. These API's can be used in any language, so .net as well.
Each carrier has its own rates, so do some price comparison. I don't know in which country you are (something Scandi... | You will need to use an HTTP API that will enable you to send sms from your application. Something like <http://sms.yuboto.com/http-api> |
86,749 | The last couple of wheels I've built have been all from reused parts. One was to convert my unicycle from 24" to 20" largely as an experiment, and the one that I'm currently working on is for the junk bike I keep near work.
For the unicycle wheel, I found my spokes were about 1mm too long nominal, plus measuring error... | 2022/11/28 | [
"https://bicycles.stackexchange.com/questions/86749",
"https://bicycles.stackexchange.com",
"https://bicycles.stackexchange.com/users/7309/"
] | The washers need to fit the rim. If the part of your rim where the spoke holes are, i.e. where the washers will sit, is not flat, your washers will sit on two points rather than on a flat face. As a result, the forces from the spokes are entering the rim via these points. This will either deform your rim, or your washe... | The best way is not to use washers at all, save your money for a threading tool, it's about the same price. Perhaps from an online hobby shop where they make very small bolts. [It may be difficult to find a 1.7mm one](https://www.google.com/search?q=spoke%20threading%20die&tbm=isch&ved=2ahUKEwjQ2efzw9H7AhVDnRoKHcaEBjUQ... |
86,749 | The last couple of wheels I've built have been all from reused parts. One was to convert my unicycle from 24" to 20" largely as an experiment, and the one that I'm currently working on is for the junk bike I keep near work.
For the unicycle wheel, I found my spokes were about 1mm too long nominal, plus measuring error... | 2022/11/28 | [
"https://bicycles.stackexchange.com/questions/86749",
"https://bicycles.stackexchange.com",
"https://bicycles.stackexchange.com/users/7309/"
] | The washers need to fit the rim. If the part of your rim where the spoke holes are, i.e. where the washers will sit, is not flat, your washers will sit on two points rather than on a flat face. As a result, the forces from the spokes are entering the rim via these points. This will either deform your rim, or your washe... | #1: Do not use a die on spokes. They are rolled...Spoke rollers are not cheap, but it's the only way to make spokes that last.
#2: Washers, especially varying amounts of washers between spokes is not a good idea. You'll have wheel wobble when you go past ~30 km/h.
#3: Using washers is legit in some cases. In fact, so... |
86,749 | The last couple of wheels I've built have been all from reused parts. One was to convert my unicycle from 24" to 20" largely as an experiment, and the one that I'm currently working on is for the junk bike I keep near work.
For the unicycle wheel, I found my spokes were about 1mm too long nominal, plus measuring error... | 2022/11/28 | [
"https://bicycles.stackexchange.com/questions/86749",
"https://bicycles.stackexchange.com",
"https://bicycles.stackexchange.com/users/7309/"
] | This is a really short answer:
I use brass washers in this type of scenario which deform to the rim shape and the nipple. This was the recommended type of washer in one of the books I read when learning the subject, possibly Brandt's book or another similar.
The wheels where I have had to do this have built up nicely... | The best way is not to use washers at all, save your money for a threading tool, it's about the same price. Perhaps from an online hobby shop where they make very small bolts. [It may be difficult to find a 1.7mm one](https://www.google.com/search?q=spoke%20threading%20die&tbm=isch&ved=2ahUKEwjQ2efzw9H7AhVDnRoKHcaEBjUQ... |
86,749 | The last couple of wheels I've built have been all from reused parts. One was to convert my unicycle from 24" to 20" largely as an experiment, and the one that I'm currently working on is for the junk bike I keep near work.
For the unicycle wheel, I found my spokes were about 1mm too long nominal, plus measuring error... | 2022/11/28 | [
"https://bicycles.stackexchange.com/questions/86749",
"https://bicycles.stackexchange.com",
"https://bicycles.stackexchange.com/users/7309/"
] | This is a really short answer:
I use brass washers in this type of scenario which deform to the rim shape and the nipple. This was the recommended type of washer in one of the books I read when learning the subject, possibly Brandt's book or another similar.
The wheels where I have had to do this have built up nicely... | #1: Do not use a die on spokes. They are rolled...Spoke rollers are not cheap, but it's the only way to make spokes that last.
#2: Washers, especially varying amounts of washers between spokes is not a good idea. You'll have wheel wobble when you go past ~30 km/h.
#3: Using washers is legit in some cases. In fact, so... |
86,749 | The last couple of wheels I've built have been all from reused parts. One was to convert my unicycle from 24" to 20" largely as an experiment, and the one that I'm currently working on is for the junk bike I keep near work.
For the unicycle wheel, I found my spokes were about 1mm too long nominal, plus measuring error... | 2022/11/28 | [
"https://bicycles.stackexchange.com/questions/86749",
"https://bicycles.stackexchange.com",
"https://bicycles.stackexchange.com/users/7309/"
] | The best way is not to use washers at all, save your money for a threading tool, it's about the same price. Perhaps from an online hobby shop where they make very small bolts. [It may be difficult to find a 1.7mm one](https://www.google.com/search?q=spoke%20threading%20die&tbm=isch&ved=2ahUKEwjQ2efzw9H7AhVDnRoKHcaEBjUQ... | #1: Do not use a die on spokes. They are rolled...Spoke rollers are not cheap, but it's the only way to make spokes that last.
#2: Washers, especially varying amounts of washers between spokes is not a good idea. You'll have wheel wobble when you go past ~30 km/h.
#3: Using washers is legit in some cases. In fact, so... |
158,981 | How exactly do you pronounce "Asshai" from A Song of Ice and Fire? I always pronounced it "ash-shy" but one of my friends says that it's "ass-high". Can anyone tell me the correct pronunciation? | 2017/05/07 | [
"https://scifi.stackexchange.com/questions/158981",
"https://scifi.stackexchange.com",
"https://scifi.stackexchange.com/users/80885/"
] | In audiobooks, *Asshai* is pronounced as **ASH-eye** or **a-SHY**, depending on the narrator's accent.
In the HBO's show *Game of Thrones*, it is pronounced as **uh-SHY**.
For your reference, you may check these pronunciation guides:
* [A Wiki of Ice and Fire (Pronunciation Guide)](https://awoiaf.westeros.org/index.... | Characters in the TV show pronounce it *ass-shy* or *ah-shy*. |
158,981 | How exactly do you pronounce "Asshai" from A Song of Ice and Fire? I always pronounced it "ash-shy" but one of my friends says that it's "ass-high". Can anyone tell me the correct pronunciation? | 2017/05/07 | [
"https://scifi.stackexchange.com/questions/158981",
"https://scifi.stackexchange.com",
"https://scifi.stackexchange.com/users/80885/"
] | Consult with the following table:
| Source | IPA | Pronunciation |
| --- | --- | --- |
| HBO | [ə'ʃaɪ] | ə-shy |
| Roy Dotrice (Audio books narrator) | [a'ʃaɪ] | a-shy |
| John Lee (Audio book narrator for AFFC) | ['aʃaɪ] | ash-eye |
You can refer to [this answer](https://linguistics.stackexchange.com/questions/9261/... | Characters in the TV show pronounce it *ass-shy* or *ah-shy*. |
158,981 | How exactly do you pronounce "Asshai" from A Song of Ice and Fire? I always pronounced it "ash-shy" but one of my friends says that it's "ass-high". Can anyone tell me the correct pronunciation? | 2017/05/07 | [
"https://scifi.stackexchange.com/questions/158981",
"https://scifi.stackexchange.com",
"https://scifi.stackexchange.com/users/80885/"
] | However you like
================
George R. R. Martin has never been one for pronunciations and has said a few times that you can pronounce anything however you like.
>
> *Favorite character?*
>
>
> GRRM : Tyrion in Ice and Fire. Abner Marsh in Fevre Dream.
>
>
> *Glad to hear you pronounce the names*
>
>
> GR... | Characters in the TV show pronounce it *ass-shy* or *ah-shy*. |
158,981 | How exactly do you pronounce "Asshai" from A Song of Ice and Fire? I always pronounced it "ash-shy" but one of my friends says that it's "ass-high". Can anyone tell me the correct pronunciation? | 2017/05/07 | [
"https://scifi.stackexchange.com/questions/158981",
"https://scifi.stackexchange.com",
"https://scifi.stackexchange.com/users/80885/"
] | In audiobooks, *Asshai* is pronounced as **ASH-eye** or **a-SHY**, depending on the narrator's accent.
In the HBO's show *Game of Thrones*, it is pronounced as **uh-SHY**.
For your reference, you may check these pronunciation guides:
* [A Wiki of Ice and Fire (Pronunciation Guide)](https://awoiaf.westeros.org/index.... | However you like
================
George R. R. Martin has never been one for pronunciations and has said a few times that you can pronounce anything however you like.
>
> *Favorite character?*
>
>
> GRRM : Tyrion in Ice and Fire. Abner Marsh in Fevre Dream.
>
>
> *Glad to hear you pronounce the names*
>
>
> GR... |
158,981 | How exactly do you pronounce "Asshai" from A Song of Ice and Fire? I always pronounced it "ash-shy" but one of my friends says that it's "ass-high". Can anyone tell me the correct pronunciation? | 2017/05/07 | [
"https://scifi.stackexchange.com/questions/158981",
"https://scifi.stackexchange.com",
"https://scifi.stackexchange.com/users/80885/"
] | Consult with the following table:
| Source | IPA | Pronunciation |
| --- | --- | --- |
| HBO | [ə'ʃaɪ] | ə-shy |
| Roy Dotrice (Audio books narrator) | [a'ʃaɪ] | a-shy |
| John Lee (Audio book narrator for AFFC) | ['aʃaɪ] | ash-eye |
You can refer to [this answer](https://linguistics.stackexchange.com/questions/9261/... | However you like
================
George R. R. Martin has never been one for pronunciations and has said a few times that you can pronounce anything however you like.
>
> *Favorite character?*
>
>
> GRRM : Tyrion in Ice and Fire. Abner Marsh in Fevre Dream.
>
>
> *Glad to hear you pronounce the names*
>
>
> GR... |
248,907 | This was a question given to me by an English tutor. I was asked to choose between the Present Perfect Simple, or the Present Perfect Continuous for of the verb.
-> *"We \_\_\_\_\_\_\_\_\_\_\_\_ on the next actions to take before engaging them." (verb: decide)*
To me, the past simple was correct because of the time ... | 2020/05/29 | [
"https://ell.stackexchange.com/questions/248907",
"https://ell.stackexchange.com",
"https://ell.stackexchange.com/users/80658/"
] | You use different ways to describe different things. Each of the four ways you said are correct in the right situation. So insisting that only one can be used is daft.
Continuous vs simple is about whether the action took place over an extended time (and whether that is important to express). If I ask what you have b... | >
> We \_\_\_\_\_\_\_\_\_\_\_\_ on the next actions to take before engaging them.
>
>
>
You indicated that the simple past seems correct to you because the time marker at the end of the model sentence is in the past. Based on this sentence alone, I have no reason to agree with you.
>
> We **will decide** on t... |
248,907 | This was a question given to me by an English tutor. I was asked to choose between the Present Perfect Simple, or the Present Perfect Continuous for of the verb.
-> *"We \_\_\_\_\_\_\_\_\_\_\_\_ on the next actions to take before engaging them." (verb: decide)*
To me, the past simple was correct because of the time ... | 2020/05/29 | [
"https://ell.stackexchange.com/questions/248907",
"https://ell.stackexchange.com",
"https://ell.stackexchange.com/users/80658/"
] | You use different ways to describe different things. Each of the four ways you said are correct in the right situation. So insisting that only one can be used is daft.
Continuous vs simple is about whether the action took place over an extended time (and whether that is important to express). If I ask what you have b... | You say:
>
> I was asked to choose between the Present Perfect Simple, or the Present Perfect Continuous for of the verb.
>
>
>
Then you say:
>
> To me, the past simple was correct because of the time marker at the end of the sentence also being in the past, indicating the action completed:
>
>
>
Past simpl... |
158,951 | I have a Gmail filter that applies a label ('OTPs') to certain incoming messages. They accumulate and I want to keep most for only a couple of days.
I can eliminate them manually by performing a search (e.g. 'older\_than:2d label:OTPs -label:GST') and then deleting the results, but I want to automate this process usin... | 2021/09/10 | [
"https://webapps.stackexchange.com/questions/158951",
"https://webapps.stackexchange.com",
"https://webapps.stackexchange.com/users/282455/"
] | Unfortunately, generally it is not possible to split shapes that way. | I use Inkscape for most custom shapes. I found [this tutorial](https://www.youtube.com/watch?v=oG2eqeZp9KU "How to Split Shapes - Inkscape Tutorial") on how to create your shape in Inkscape. Then you can just save it and add it to your diagram.
I haven't done anything like that, but here is an example of merging multi... |
206,677 | I know how weird this question sounds and how the answer to it is probably **NO** at first glance, but I don't know enough about octaoxygen and oxygen to be 100% sure about the answer being **NO** and honestly, I have some hope (not much) about the answer to this question being **YES** due to the inmense size of the un... | 2021/07/05 | [
"https://worldbuilding.stackexchange.com/questions/206677",
"https://worldbuilding.stackexchange.com",
"https://worldbuilding.stackexchange.com/users/86736/"
] | Different fine structure constant
---------------------------------
It [has been reported](https://www.sciencedaily.com/releases/2010/09/100909004112.htm) that the [fine structure constant](https://en.wikipedia.org/wiki/Fine-structure_constant) varies throughout the universe. The fine structure constant affects things... | Octaoxygen forms from oxygen at [a pressure of ten gigapascals](https://en.wikipedia.org/wiki/Octaoxygen), or a pressure equal to 10,000 standard atmospheres. ~~Since atmospheric pressure is directly related to gravity, you would need an oxygen-rich atmosphere on a planet with gravity 10,000 times stronger than that of... |
206,677 | I know how weird this question sounds and how the answer to it is probably **NO** at first glance, but I don't know enough about octaoxygen and oxygen to be 100% sure about the answer being **NO** and honestly, I have some hope (not much) about the answer to this question being **YES** due to the inmense size of the un... | 2021/07/05 | [
"https://worldbuilding.stackexchange.com/questions/206677",
"https://worldbuilding.stackexchange.com",
"https://worldbuilding.stackexchange.com/users/86736/"
] | Different fine structure constant
---------------------------------
It [has been reported](https://www.sciencedaily.com/releases/2010/09/100909004112.htm) that the [fine structure constant](https://en.wikipedia.org/wiki/Fine-structure_constant) varies throughout the universe. The fine structure constant affects things... | It won't be a planet. There can be no celestial bodies at 10.000 earth mass, with room temperature at the surface. Jupiter has about 800 Earth masses and an object 3-4 times Jupiter mass would become a dwarf star, burning deuterium. Pressure is in the right order, but the surface is too hot to accommodate the O8. I thi... |
206,677 | I know how weird this question sounds and how the answer to it is probably **NO** at first glance, but I don't know enough about octaoxygen and oxygen to be 100% sure about the answer being **NO** and honestly, I have some hope (not much) about the answer to this question being **YES** due to the inmense size of the un... | 2021/07/05 | [
"https://worldbuilding.stackexchange.com/questions/206677",
"https://worldbuilding.stackexchange.com",
"https://worldbuilding.stackexchange.com/users/86736/"
] | It won't be a planet. There can be no celestial bodies at 10.000 earth mass, with room temperature at the surface. Jupiter has about 800 Earth masses and an object 3-4 times Jupiter mass would become a dwarf star, burning deuterium. Pressure is in the right order, but the surface is too hot to accommodate the O8. I thi... | Octaoxygen forms from oxygen at [a pressure of ten gigapascals](https://en.wikipedia.org/wiki/Octaoxygen), or a pressure equal to 10,000 standard atmospheres. ~~Since atmospheric pressure is directly related to gravity, you would need an oxygen-rich atmosphere on a planet with gravity 10,000 times stronger than that of... |
187,107 | For example take positive edge triggered D flip flop.If input (D) changes from 1 to 0 at the same time when clock pulse goes from 0 to 1(positive edge of clock pulse), what will be the output (Q).Will it be 1 or 0?
[](https://i.stack.imgur.com/PyglI.p... | 2015/08/24 | [
"https://electronics.stackexchange.com/questions/187107",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/82453/"
] | Look in the datasheet for the flipflop, and there will be two specs that address this issue: *Setup time* and *hold time*. The setup time is how long the input data needs to be held fixed before the clock, and hold time is how long it needs to remain fixed after the clock. If either of these specs is violated, then the... | Just like @BrianDrummond said.
In the datasheet will there be some specifications of how much time the data must be constant before the clock pulse to be accepted as a new value.
Here is a video about: Digital Logic - Propagation Delay, Setup, and Hold times
<https://youtu.be/g8lRqQ-IfYw> |
187,107 | For example take positive edge triggered D flip flop.If input (D) changes from 1 to 0 at the same time when clock pulse goes from 0 to 1(positive edge of clock pulse), what will be the output (Q).Will it be 1 or 0?
[](https://i.stack.imgur.com/PyglI.p... | 2015/08/24 | [
"https://electronics.stackexchange.com/questions/187107",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/82453/"
] | Look in the datasheet for the flipflop, and there will be two specs that address this issue: *Setup time* and *hold time*. The setup time is how long the input data needs to be held fixed before the clock, and hold time is how long it needs to remain fixed after the clock. If either of these specs is violated, then the... | If the input to the D-flipflop violates the set-up time and arrives too close to rising edge of the clock, the flip flop will either enter a metastable state (and so the output of flip flip will be at an intermediate level for some indeterminate period time ) or will enter a long delay state where the transition at the... |
22,944 | This is really bothering me for a long time,
because the math is easy to do, but it's still unintuitive for me.
I understand the "law of the lever" and I can do the math and
use the torques, or conservation of energy. or whatever...
And I can see that a lever can amplify a force you apply to it
if you apply a force o... | 2012/03/28 | [
"https://physics.stackexchange.com/questions/22944",
"https://physics.stackexchange.com",
"https://physics.stackexchange.com/users/6743/"
] | Even though @Noah's answer provides some insight, I would have to disagree with the statement that "the bonds on the short side are distorted more". The "net" distortion is probably the same on each side.
I will provide a similar figure to @Noah's. There are two black rectangles, that would represent the two weights, ... | I take dmckee's answer to be flawed because it doesn't mention the earth.
At the coarsest level, the earth accelerates down while the large object accelerates up. At the level of Newtonian mechanics, every action has an equal and opposite reaction.
In more detail, the center of mass of the earth, the fulcrum, the lev... |
22,944 | This is really bothering me for a long time,
because the math is easy to do, but it's still unintuitive for me.
I understand the "law of the lever" and I can do the math and
use the torques, or conservation of energy. or whatever...
And I can see that a lever can amplify a force you apply to it
if you apply a force o... | 2012/03/28 | [
"https://physics.stackexchange.com/questions/22944",
"https://physics.stackexchange.com",
"https://physics.stackexchange.com/users/6743/"
] | I agree with Benjamin Franz that the ball-and-spring model of a solid is helpful and that when a solid exerts a contact force the bonds between the atoms are distorted in that region. If you take a beam, clamp down its ends, and then apply a force to it off-center, the bonds on the short side are distorted more than th... | Even though @Noah's answer provides some insight, I would have to disagree with the statement that "the bonds on the short side are distorted more". The "net" distortion is probably the same on each side.
I will provide a similar figure to @Noah's. There are two black rectangles, that would represent the two weights, ... |
22,944 | This is really bothering me for a long time,
because the math is easy to do, but it's still unintuitive for me.
I understand the "law of the lever" and I can do the math and
use the torques, or conservation of energy. or whatever...
And I can see that a lever can amplify a force you apply to it
if you apply a force o... | 2012/03/28 | [
"https://physics.stackexchange.com/questions/22944",
"https://physics.stackexchange.com",
"https://physics.stackexchange.com/users/6743/"
] | I agree with Benjamin Franz that the ball-and-spring model of a solid is helpful and that when a solid exerts a contact force the bonds between the atoms are distorted in that region. If you take a beam, clamp down its ends, and then apply a force to it off-center, the bonds on the short side are distorted more than th... | I take dmckee's answer to be flawed because it doesn't mention the earth.
At the coarsest level, the earth accelerates down while the large object accelerates up. At the level of Newtonian mechanics, every action has an equal and opposite reaction.
In more detail, the center of mass of the earth, the fulcrum, the lev... |
22,944 | This is really bothering me for a long time,
because the math is easy to do, but it's still unintuitive for me.
I understand the "law of the lever" and I can do the math and
use the torques, or conservation of energy. or whatever...
And I can see that a lever can amplify a force you apply to it
if you apply a force o... | 2012/03/28 | [
"https://physics.stackexchange.com/questions/22944",
"https://physics.stackexchange.com",
"https://physics.stackexchange.com/users/6743/"
] | Even though @Noah's answer provides some insight, I would have to disagree with the statement that "the bonds on the short side are distorted more". The "net" distortion is probably the same on each side.
I will provide a similar figure to @Noah's. There are two black rectangles, that would represent the two weights, ... | It is all relative to the pivot point in the lever, and to energy expended, not the force applied.
If the pivot point is one quarter of the levers length, from the bottom of the lever, and you apply a force F, to the top of lever, to move the top through adistance D, the result will be that the bottom of the lever will... |
6,923,002 | I am getting these strange white package icons in my testing project. From what I've seen @ <http://jamie.ideasasylum.com/images/icons.pdf>, they signal "empty packages", but I don't know why.
My `src/` folder is set is includedin the build path, so... | 2011/08/03 | [
"https://Stackoverflow.com/questions/6923002",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/130758/"
] | This is most likely because you have chosen hierarchical package views. The hierarchical package view will show empty package icons for packages without any classes.
Switching to flat package views will allow Eclipse to display only packages... | Create at least one class in the 'empty' package 'white package' and refresh the project, the color should change to Golden.
When Package does not contain any class, then the color is white. |
77,666 | We are thinking of patching our new network rack using 0,15m cables due to costs and cable management requirements. There will be around 400-500 connections using this cable length and we will be using Dell enterprise equipment (switches). I found a vendor selling certified cables for CAT6a.
My question is in regards ... | 2022/01/24 | [
"https://networkengineering.stackexchange.com/questions/77666",
"https://networkengineering.stackexchange.com",
"https://networkengineering.stackexchange.com/users/51429/"
] | **Note:**
If the cables goes into a patch panel, the cable length is equal to the sum of the cable lengths on each side of the patch panel. | Most known vendors now have length detection on their switch/router firmware which adjusts signaling power and timing accordingly. Based on years of experience, I believe you'll have little to zero issues working with short cables in compact server rooms.
It is still a good policy to stick to ratified cables, anyhow. |
9,771,397 | I'm using Windows. I have installed Visual C# 2010, mono and MonoDevelop. I know that MonoDevelop can use either Microsoft's compiler or mono's compiler. How do I check which compiler is used by MonoDevelop? And how do I change it to other one? | 2012/03/19 | [
"https://Stackoverflow.com/questions/9771397",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/1209766/"
] | You can see and change the active runtime for the current solution using the *Project->Active Runtime* menu, or the active configuration picker in the toolbar. These options will be invisible if you do not have any alternate runtimes installed.
Note that these two places to set it are slightly inconsistent - the toolb... | In addition, depending on which .NET frameworks you have installed, you can check the *Runtime* section at *Help -> Info -> Details* to see which version of the .NET framework MonoDevelop is running on. This seems to impact which .NET compiler is used if you select *Microsoft .NET*.
I am still figuring out how to chan... |
114,201 | I'm running a **custom RPG** (based on the universe of Boktai, an old GBA game) with a group of six players.
We are pretty far into the campaign and the players are getting pretty close to face the final boss, who is an invoker-type wizard. He previously unleashed ghouls and cockatrixes, and I thought about him summon... | 2018/01/26 | [
"https://rpg.stackexchange.com/questions/114201",
"https://rpg.stackexchange.com",
"https://rpg.stackexchange.com/users/41440/"
] | ### If you're using dice, this is a roughly 50-50 fight
With the same statistics and abilities, and randomness in the form of Dice, cards, or something else, you have a roughly 50% chance of a TPK, and nearly guaranteed at least one player will die. This is probably way above the normal encounter guidelines for any sy... | I see several inherent problems with cloning a party. Don't get me wrong, the *psychological* value would be awesome. And it may create battlefield confusion and force the party to keep their battle line tight. *But:*
* As far as game mechanics, you would have 5 independently thinking players, against a DM controlling... |
114,201 | I'm running a **custom RPG** (based on the universe of Boktai, an old GBA game) with a group of six players.
We are pretty far into the campaign and the players are getting pretty close to face the final boss, who is an invoker-type wizard. He previously unleashed ghouls and cockatrixes, and I thought about him summon... | 2018/01/26 | [
"https://rpg.stackexchange.com/questions/114201",
"https://rpg.stackexchange.com",
"https://rpg.stackexchange.com/users/41440/"
] | I see several inherent problems with cloning a party. Don't get me wrong, the *psychological* value would be awesome. And it may create battlefield confusion and force the party to keep their battle line tight. *But:*
* As far as game mechanics, you would have 5 independently thinking players, against a DM controlling... | I'm looking at this from an old-school wargaming type perspective than an RPG one; there, having the 'generals' being able to co-ordinate actions rather too unrealistically is an old problem.
So, what I suggest you do is to make some short tactical rules to cover this encounter. One simple approach would be to have wr... |
114,201 | I'm running a **custom RPG** (based on the universe of Boktai, an old GBA game) with a group of six players.
We are pretty far into the campaign and the players are getting pretty close to face the final boss, who is an invoker-type wizard. He previously unleashed ghouls and cockatrixes, and I thought about him summon... | 2018/01/26 | [
"https://rpg.stackexchange.com/questions/114201",
"https://rpg.stackexchange.com",
"https://rpg.stackexchange.com/users/41440/"
] | The copies have a significant disadvantage
------------------------------------------
This will be dependent on how magic and summoning work in your setting, but since you marked this question as System agnostic I'll be giving some different ways to do this:
* **The copies disappear if the summoner dies/loses concent... | The way I see it - without knowing details about how your RPG works balancing-wise etc. - you have the following options (I'll be using D&D 5e terms when giving examples - just translate that into your respective game):
* make the **clones significantly less powerful than their PC counterparts**:
+ this should be obv... |
114,201 | I'm running a **custom RPG** (based on the universe of Boktai, an old GBA game) with a group of six players.
We are pretty far into the campaign and the players are getting pretty close to face the final boss, who is an invoker-type wizard. He previously unleashed ghouls and cockatrixes, and I thought about him summon... | 2018/01/26 | [
"https://rpg.stackexchange.com/questions/114201",
"https://rpg.stackexchange.com",
"https://rpg.stackexchange.com/users/41440/"
] | The way I see it - without knowing details about how your RPG works balancing-wise etc. - you have the following options (I'll be using D&D 5e terms when giving examples - just translate that into your respective game):
* make the **clones significantly less powerful than their PC counterparts**:
+ this should be obv... | I'm looking at this from an old-school wargaming type perspective than an RPG one; there, having the 'generals' being able to co-ordinate actions rather too unrealistically is an old problem.
So, what I suggest you do is to make some short tactical rules to cover this encounter. One simple approach would be to have wr... |
114,201 | I'm running a **custom RPG** (based on the universe of Boktai, an old GBA game) with a group of six players.
We are pretty far into the campaign and the players are getting pretty close to face the final boss, who is an invoker-type wizard. He previously unleashed ghouls and cockatrixes, and I thought about him summon... | 2018/01/26 | [
"https://rpg.stackexchange.com/questions/114201",
"https://rpg.stackexchange.com",
"https://rpg.stackexchange.com/users/41440/"
] | [As Randomorph has already noted,](https://rpg.stackexchange.com/a/114207) a perfectly balanced fight between two parties with the exact same traits and abilities should result in a 50% chance of the PCs losing (and, presumably, being killed). Assuming that's not what you want, you'll need to give the clones some signi... | **Do it in stages**
Number each player (1-6) and roll a six-sided die. Fist two players rolled are the characters the Wizard will summon. Do this in stage until all copies are defeated.
Also, decide before whether the copies can or can't leave behind loot.
PS- If you prefer, you can do the copies in sets of three, t... |
114,201 | I'm running a **custom RPG** (based on the universe of Boktai, an old GBA game) with a group of six players.
We are pretty far into the campaign and the players are getting pretty close to face the final boss, who is an invoker-type wizard. He previously unleashed ghouls and cockatrixes, and I thought about him summon... | 2018/01/26 | [
"https://rpg.stackexchange.com/questions/114201",
"https://rpg.stackexchange.com",
"https://rpg.stackexchange.com/users/41440/"
] | I see several inherent problems with cloning a party. Don't get me wrong, the *psychological* value would be awesome. And it may create battlefield confusion and force the party to keep their battle line tight. *But:*
* As far as game mechanics, you would have 5 independently thinking players, against a DM controlling... | I recently did something similar. Instead of full clones they were copies of a fragment of the soul. I gave them the general abilities and had them fight well, but they all had a flat health and no matter what ability they cast, the damage was a flat amount of necrotic. So an exploding fireball was still a low hit. Why... |
114,201 | I'm running a **custom RPG** (based on the universe of Boktai, an old GBA game) with a group of six players.
We are pretty far into the campaign and the players are getting pretty close to face the final boss, who is an invoker-type wizard. He previously unleashed ghouls and cockatrixes, and I thought about him summon... | 2018/01/26 | [
"https://rpg.stackexchange.com/questions/114201",
"https://rpg.stackexchange.com",
"https://rpg.stackexchange.com/users/41440/"
] | The copies have a significant disadvantage
------------------------------------------
This will be dependent on how magic and summoning work in your setting, but since you marked this question as System agnostic I'll be giving some different ways to do this:
* **The copies disappear if the summoner dies/loses concent... | [As Randomorph has already noted,](https://rpg.stackexchange.com/a/114207) a perfectly balanced fight between two parties with the exact same traits and abilities should result in a 50% chance of the PCs losing (and, presumably, being killed). Assuming that's not what you want, you'll need to give the clones some signi... |
114,201 | I'm running a **custom RPG** (based on the universe of Boktai, an old GBA game) with a group of six players.
We are pretty far into the campaign and the players are getting pretty close to face the final boss, who is an invoker-type wizard. He previously unleashed ghouls and cockatrixes, and I thought about him summon... | 2018/01/26 | [
"https://rpg.stackexchange.com/questions/114201",
"https://rpg.stackexchange.com",
"https://rpg.stackexchange.com/users/41440/"
] | I see several inherent problems with cloning a party. Don't get me wrong, the *psychological* value would be awesome. And it may create battlefield confusion and force the party to keep their battle line tight. *But:*
* As far as game mechanics, you would have 5 independently thinking players, against a DM controlling... | **Do it in stages**
Number each player (1-6) and roll a six-sided die. Fist two players rolled are the characters the Wizard will summon. Do this in stage until all copies are defeated.
Also, decide before whether the copies can or can't leave behind loot.
PS- If you prefer, you can do the copies in sets of three, t... |
114,201 | I'm running a **custom RPG** (based on the universe of Boktai, an old GBA game) with a group of six players.
We are pretty far into the campaign and the players are getting pretty close to face the final boss, who is an invoker-type wizard. He previously unleashed ghouls and cockatrixes, and I thought about him summon... | 2018/01/26 | [
"https://rpg.stackexchange.com/questions/114201",
"https://rpg.stackexchange.com",
"https://rpg.stackexchange.com/users/41440/"
] | ### If you're using dice, this is a roughly 50-50 fight
With the same statistics and abilities, and randomness in the form of Dice, cards, or something else, you have a roughly 50% chance of a TPK, and nearly guaranteed at least one player will die. This is probably way above the normal encounter guidelines for any sy... | I'm looking at this from an old-school wargaming type perspective than an RPG one; there, having the 'generals' being able to co-ordinate actions rather too unrealistically is an old problem.
So, what I suggest you do is to make some short tactical rules to cover this encounter. One simple approach would be to have wr... |
114,201 | I'm running a **custom RPG** (based on the universe of Boktai, an old GBA game) with a group of six players.
We are pretty far into the campaign and the players are getting pretty close to face the final boss, who is an invoker-type wizard. He previously unleashed ghouls and cockatrixes, and I thought about him summon... | 2018/01/26 | [
"https://rpg.stackexchange.com/questions/114201",
"https://rpg.stackexchange.com",
"https://rpg.stackexchange.com/users/41440/"
] | I recently did something similar. Instead of full clones they were copies of a fragment of the soul. I gave them the general abilities and had them fight well, but they all had a flat health and no matter what ability they cast, the damage was a flat amount of necrotic. So an exploding fireball was still a low hit. Why... | I'm looking at this from an old-school wargaming type perspective than an RPG one; there, having the 'generals' being able to co-ordinate actions rather too unrealistically is an old problem.
So, what I suggest you do is to make some short tactical rules to cover this encounter. One simple approach would be to have wr... |
703,182 | I'm trying to connect to my Raspberry Pi, which is behind a router and a firewall. My PC (running linux) is also behind a router and firewall. Both firewalls only allow the ports you would need for basic internet surfing (80, 443, ...). I'd even prefer the connection to look like 'normal' packets going through the rout... | 2014/01/17 | [
"https://superuser.com/questions/703182",
"https://superuser.com",
"https://superuser.com/users/197386/"
] | So eventually I solved it myself.
What I used was [yaler.net](http://yaler.net). Their documentation is good enough. They state that their tunnel won't be blocked by (most) firewalls, so it is perfect.
Of course, there may be other comparable relay services, but this one works like a charm for me (and it's free).
BT... | SSH can be tunneled over plenty of 'basic internet surfing' protocols including
* [HTTP(S)](http://dag.wiee.rs/howto/ssh-http-tunneling/)
* [DNS](http://aripollak.com/sshoverdns/)
Alternatively you could just set your raspberry pi's ssh server to listen on port 80 if your firewalls are port based and basic connectivi... |
510,632 | Is there a formula to calculate the dangerousness of amps, and volts?
like watts, for example. *Watts = Volts x Amps*. Generally speaking, you could say wattage takes into account volts, and amps.
I am working on a robot. And am using high power motors. I don't want to learn the hard way, by getting shocked.
I need a... | 2020/07/15 | [
"https://electronics.stackexchange.com/questions/510632",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/-1/"
] | NEC code puts a voltage limit of exposed conductors at 48 VDC or 34 VAC sinewave. Current is more of a hot-wire issue, not a shock issue.
Volts times amps is watts, so if not a shock hazard it could be a burn hazard.
A 25 watt solder iron will burn you as it is confined resistive heat. In this case the volts and amps t... | Dangerous to YOU, and dangerous to circuits.
Changes in Magnetic fields---when you or your circuits are near that field.
Example: a long straight wire carrying high currents with rapid changes in current, near your PCB. Any "closed path", even if part of path is Ground and part of the path is analog sensor traces or ... |
27,133,314 | I wonder what is the best way(if possible) to separate app into multiple independent parts.
For example if you have 3 separate units that do different stuff, and you may have 2 different apps that combine 2/3 of this parts, how would you do it?
I'm coming from windows background, where in Visual Studio, you can have... | 2014/11/25 | [
"https://Stackoverflow.com/questions/27133314",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/1642126/"
] | I looked at your site ([sytpp.github.io](http://sytpp.github.io/), right?) and everything seems to be set up correctly. When I look at the Network requests in Chrome dev tools, I can verify that hits are being sent to Google Analytics.
If this is a new Google Analytics account, you probably just need to wait 24-48 hou... | I just installed google analytics on my skinny bones jekyll site, and it took two days for it to start working.
The confounding part is that Google Analytics has a tracker on their site saying something like "not tracking data". It even gave a time, down to the second, that it claimed it last checked for data. Even t... |
24,626 | I am currently looking in various Arduino.
I'd like to build a very specific device:
I'd like to have a lamp (using a RGB LED (already have one)) that can change the color (or do custom routines like blinking etc...).
But these specifications must be met:
* Battery powered (so all items must use minimum power)
* Wi... | 2012/01/05 | [
"https://electronics.stackexchange.com/questions/24626",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/7376/"
] | Based off of your two specifications of
>
> Battery powered (so all items must use minimum power)
>
>
> WiFi enabled
>
>
>
I would recommend not going with an Arduino at all as it will be much more difficult to meet the minimum power requirement. In order to minimize your power you will need to look into spinni... | The Arduino Uno should meet your needs. You might want to look into the [xbee](http://www.ladyada.net/make/xbee/) shield. |
24,626 | I am currently looking in various Arduino.
I'd like to build a very specific device:
I'd like to have a lamp (using a RGB LED (already have one)) that can change the color (or do custom routines like blinking etc...).
But these specifications must be met:
* Battery powered (so all items must use minimum power)
* Wi... | 2012/01/05 | [
"https://electronics.stackexchange.com/questions/24626",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/7376/"
] | There are some really nice (and $6 cheap) Bluetooth UART modules which might be a much cheaper alternative if you are more interested in being wireless, than specifically using Wi-Fi. I use these (http://www.ebay.com/itm/190433073764) with Arduino and they are very easy to get fired up. As Cornbread Ninja suggests, Xbe... | The Arduino Uno should meet your needs. You might want to look into the [xbee](http://www.ladyada.net/make/xbee/) shield. |
34,565 | **What is this weed and how do I kill it without killing the grass?**
I've tried different brands of the usual spectrum herbicide that kills everything but doesn't kill grass, and everything - like clover, dandelions, etc - does die, but not this stuff. And I've tried the herbicide triclopyr, made for chickweed, etc.,... | 2017/07/17 | [
"https://gardening.stackexchange.com/questions/34565",
"https://gardening.stackexchange.com",
"https://gardening.stackexchange.com/users/18252/"
] | It does look like wild violets, and they are difficult to eradicate, but triclopyr, or any other lawn weedkiller that purports to kill these, is much more effective used in autumn, see here <https://www.thespruce.com/get-rid-of-wild-violets-in-the-lawn-2132476>
Even so, you may need to be as persistent as the violets ... | Should have you look at this site I am posting on Henbit to see if you think this is the same plant; look for opposite leaves, two leaves coming from the same joint on the stem...
How much of your lawn has this growing in it? Lawn management practices are far superior to pesticides. How low do you cut your grass, how ... |
76,508 | Say if I had one GPIO pin. Could I connect it to another pin on a different Pi and have it pick up the first pin's signal as input? Would I need to connect both Pi's ground pins to each other? | 2017/12/15 | [
"https://raspberrypi.stackexchange.com/questions/76508",
"https://raspberrypi.stackexchange.com",
"https://raspberrypi.stackexchange.com/users/64115/"
] | It can be done several ways. You can connect GPIO pins as simple IO, or use the pins with UART capabilities for a serial connection (essentially like using a null modem), or use the pins with I2C capabilities for a master-slave serial bus arrangement. I'm sure there are other methods as well.
For a simple GPIO example... | Yes, you can connect a Pi GPIO to another Pi's GPIO.
As you say you do also need to connect the grounds (so they both agree about the levels).
One GPIO should be set as an output, the other should be set as an input.
(If both are incorrectly set as outputs with one high and one low that becomes a possibly damaging s... |
10,449 | The passing of Carrie Fisher has hit a lot of science fiction fans hard; obviously, her character was a significant part of the popularity of one of the best science fiction movie franchises in history.
As we are a Q&A site, the best way (IMO) for us to remember Carrie Fisher is to highlight some of those awesome ques... | 2016/12/29 | [
"https://scifi.meta.stackexchange.com/questions/10449",
"https://scifi.meta.stackexchange.com",
"https://scifi.meta.stackexchange.com/users/2816/"
] | I pick this question's top answer:
[Is there really "No Underwear In Space?"](https://scifi.stackexchange.com/q/112767/31178)
The quote in question is how Carrie came to her famous "drowned in moonlight, strangled by her own bra" obituary line.
The current top answer by @CHEESE also features a hand drawn red circle... | My previous nomination was intended mainly to draw attention to an interesting *question*. For an excellent *answer* to a question which is surely of interest to many Star Wars fans, how about:
[Did Luke or Leia ever feel romantic attraction to each other?](https://scifi.stackexchange.com/a/120964/31394)
Possibly inc... |
10,449 | The passing of Carrie Fisher has hit a lot of science fiction fans hard; obviously, her character was a significant part of the popularity of one of the best science fiction movie franchises in history.
As we are a Q&A site, the best way (IMO) for us to remember Carrie Fisher is to highlight some of those awesome ques... | 2016/12/29 | [
"https://scifi.meta.stackexchange.com/questions/10449",
"https://scifi.meta.stackexchange.com",
"https://scifi.meta.stackexchange.com/users/2816/"
] | Despite not being into Star Wars, I enjoyed the answers to this question:
[Why does Leia's accent change during A New Hope?](https://scifi.stackexchange.com/q/2903/31394)
I'm nominating it for a memorial bounty because it makes a connection between **Carrie Fisher IRL** (which is who we're commemorating) and **events... | My previous nomination was intended mainly to draw attention to an interesting *question*. For an excellent *answer* to a question which is surely of interest to many Star Wars fans, how about:
[Did Luke or Leia ever feel romantic attraction to each other?](https://scifi.stackexchange.com/a/120964/31394)
Possibly inc... |
9,043 | If I share a calendar with someone else and we end up with clashing events, how can I tell who "got there first"? | 2010/11/08 | [
"https://webapps.stackexchange.com/questions/9043",
"https://webapps.stackexchange.com",
"https://webapps.stackexchange.com/users/2226/"
] | There's no way to do that via the web interface. If you're happy to get down and dirty with the the [Calendar Data API](https://developers.google.com/google-apps/calendar/), then you can get the creation and last-modified timestamps from any event in any of the calendars you're subscribed to. | If you have another email address, add that to the event and send the invite. This will create the .ics file. Open the .ics file on any text editor and search for "CREATED:". |
9,043 | If I share a calendar with someone else and we end up with clashing events, how can I tell who "got there first"? | 2010/11/08 | [
"https://webapps.stackexchange.com/questions/9043",
"https://webapps.stackexchange.com",
"https://webapps.stackexchange.com/users/2226/"
] | There's no way to do that via the web interface. If you're happy to get down and dirty with the the [Calendar Data API](https://developers.google.com/google-apps/calendar/), then you can get the creation and last-modified timestamps from any event in any of the calendars you're subscribed to. | You can now do this without writing any code by using the web version of the calendar API:
<https://developers.google.com/apis-explorer/#p/calendar/v3/calendar.events.get>
1. Go to the calendar event in question in "edit" view.
2. Go to "More Actions" and then "Troubleshooting Info".
3. Copy the event ID (eid=...).
*... |
9,043 | If I share a calendar with someone else and we end up with clashing events, how can I tell who "got there first"? | 2010/11/08 | [
"https://webapps.stackexchange.com/questions/9043",
"https://webapps.stackexchange.com",
"https://webapps.stackexchange.com/users/2226/"
] | You can locate the date created and date modified for an event by examining the .ics file for the calendar with a text editor. Download the .ics file for your calendar from calendar.google.com > Settings > Import & Export> Export | You can now do this without writing any code by using the web version of the calendar API:
<https://developers.google.com/apis-explorer/#p/calendar/v3/calendar.events.get>
1. Go to the calendar event in question in "edit" view.
2. Go to "More Actions" and then "Troubleshooting Info".
3. Copy the event ID (eid=...).
*... |
9,043 | If I share a calendar with someone else and we end up with clashing events, how can I tell who "got there first"? | 2010/11/08 | [
"https://webapps.stackexchange.com/questions/9043",
"https://webapps.stackexchange.com",
"https://webapps.stackexchange.com/users/2226/"
] | You can now do this without writing any code by using the web version of the calendar API:
<https://developers.google.com/apis-explorer/#p/calendar/v3/calendar.events.get>
1. Go to the calendar event in question in "edit" view.
2. Go to "More Actions" and then "Troubleshooting Info".
3. Copy the event ID (eid=...).
*... | If you have another email address, add that to the event and send the invite. This will create the .ics file. Open the .ics file on any text editor and search for "CREATED:". |
422,942 | Most controller/processor come with PWM output and integrated standalone DAC module....
My need is to generate 50/60Hz analog signal for testing purpose! Which would be the good choice PWM DAC or Standalone DAC?
Better in terms of:
\* Simple electronics
\* Simple coding
\* Quality signals (lesser distortion)
\* Sine ... | 2019/02/18 | [
"https://electronics.stackexchange.com/questions/422942",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/213183/"
] | Given the MCU\_PWM\_DAC has electro-static-discharge protection diodes on the (inputs and) outputs of the MCU, your signal will always have MCU\_CLOCK and MCU\_program\_related spikes and trash that are non-random.
Use this filter on the "DAC"
[simulate this circuit]... | I'm assuming that a Sinewave output is required here.
Any primitive DAC you implement will work fine but will likely be noisy unless a fair bit of design is carried out to filter it etc.
All things considered the PWM DAC you implement yourself is likely to be much noisier than a standalone one - purely for the reas... |
10,470 | When the sun is out after a rain, I can see what appears to be steam rising off a wooden bridge nearby. I'm pretty sure this is water turning into a gas.
However, I thought water had to reach 100 degrees C to be able to turn into a gas.
Is there an edge case, for small amounts of water perhaps, that allows it to evap... | 2011/05/27 | [
"https://physics.stackexchange.com/questions/10470",
"https://physics.stackexchange.com",
"https://physics.stackexchange.com/users/3751/"
] | Evaporation is a different process to boiling. The first is a surface effect that can happen at any temperature, while the latter is a bulk transformation that only happens when the conditions are correct.
Technically the water is not turning into a gas, but random movement of the surface molecules allows some of them... | Steam rising from a warm bridge is vaprization of water. Boiling water is vaporization of water. Getting cooled down by a breeze after a sweaty workout is vaporization of water. All result in the same phase change with the same latent heat of vaporization of 540 cal./gram, which is a very powerful cooling effect.
Boil... |
10,470 | When the sun is out after a rain, I can see what appears to be steam rising off a wooden bridge nearby. I'm pretty sure this is water turning into a gas.
However, I thought water had to reach 100 degrees C to be able to turn into a gas.
Is there an edge case, for small amounts of water perhaps, that allows it to evap... | 2011/05/27 | [
"https://physics.stackexchange.com/questions/10470",
"https://physics.stackexchange.com",
"https://physics.stackexchange.com/users/3751/"
] | Evaporation is a different process to boiling. The first is a surface effect that can happen at any temperature, while the latter is a bulk transformation that only happens when the conditions are correct.
Technically the water is not turning into a gas, but random movement of the surface molecules allows some of them... | Below "boiling point" (not always 100C), water can exist in both gas and liquid phase, and has a temperature-dependent vapour pressure, which represents a point of equilibrium between liquid water wanting to evaporate and water vapour wanting to condense. When liquid water meets dry air, it is not in equilibrium; water... |
10,470 | When the sun is out after a rain, I can see what appears to be steam rising off a wooden bridge nearby. I'm pretty sure this is water turning into a gas.
However, I thought water had to reach 100 degrees C to be able to turn into a gas.
Is there an edge case, for small amounts of water perhaps, that allows it to evap... | 2011/05/27 | [
"https://physics.stackexchange.com/questions/10470",
"https://physics.stackexchange.com",
"https://physics.stackexchange.com/users/3751/"
] | Below "boiling point" (not always 100C), water can exist in both gas and liquid phase, and has a temperature-dependent vapour pressure, which represents a point of equilibrium between liquid water wanting to evaporate and water vapour wanting to condense. When liquid water meets dry air, it is not in equilibrium; water... | Steam rising from a warm bridge is vaprization of water. Boiling water is vaporization of water. Getting cooled down by a breeze after a sweaty workout is vaporization of water. All result in the same phase change with the same latent heat of vaporization of 540 cal./gram, which is a very powerful cooling effect.
Boil... |
2,339 | Lego says I can I use the new software to program old NXT bricks:
>
> Q: Is EV3 backwards compatible with NXT hardware?
>
>
> A: Yes. You can program your NXT intelligent brick using the new EV3 software. However not all software features are supported by the NXT intelligent Brick. You cannot program your EV3 progr... | 2013/08/29 | [
"https://bricks.stackexchange.com/questions/2339",
"https://bricks.stackexchange.com",
"https://bricks.stackexchange.com/users/2919/"
] | EV3 has no support for the Light Sensor, just the Color sensor. There is a Raw Sensor that can be used to create a Light Sensor MyBlock. That MyBlock can then be used to create the various WaitFor, Loop, and Switch blocks using the Logic form of those blocks.
Then there is the calibration problem. The Color Sensor blo... | EV3 software cannot connect to the NXT 2.0 brick through Bluetooth, only by USB. One can only hope that this is a bug and will be fixed. |
342,099 | ---
Hi, i am currently working on BLDC motor controller (ESC without Back EMF), i want to know what is the max and the min delay time to switch between the 6 steps to control the speed of the motor . I am using atmega328p (with quartz 16MHZ).
Motor : Turnigy 2627 Brushless Outrunner 3800kv ( 12 v and P = 260 w ) | 2017/11/27 | [
"https://electronics.stackexchange.com/questions/342099",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/162647/"
] | Brushes do wear back and like all conductors are rated in ohms/unit length. However, the resistance of the brushes is trivial compared to the resistance of the coils.
Here is an interesting document that lists [typical brushes](http://www.argointl.com/wp-content/uploads/2014/03/necp-How_to_Select_Brushes_for_Motors_an... | In addition to the answer by Trevor, fundamentally it's not the resistance of the carbon brushes that limits the current. It's the resistance of the windings, and then the back EMF created once the motor is spinning.
Which means that most of the other questions don't apply.
A few small sparks from a motor is normal. ... |
28,625 | I am looking for an Android app you could use to list sentences like you can in Google Keep and then select any sentence and press a button to have it spoken out.
This could also among other things helpful for a deaf or unable to speak person (eg. on a trip who could write but had a really bad accent) convey what the... | 2016/02/08 | [
"https://softwarerecs.stackexchange.com/questions/28625",
"https://softwarerecs.stackexchange.com",
"https://softwarerecs.stackexchange.com/users/20089/"
] | There is an app called [YASFA](https://f-droid.org/repository/browse/?fdid=com.yasfa.views) on F-Droid that lets you write some predefined words or sentences and upon clicking them it plays them out.
The app also comes with some predefined words that are useful for people in their daily life.
You can write your own s... | [SynWrite](http://uvviewsoft.com/) text editor has plugin "Speech": install it in AddonsManager. Then select any text block and call plugin.
And you can put call to "speech" at toolbar. Make toolbar item.
It uses Windows API for it. |
346,620 | Do you know any idiom that would be a counterpart of Russian "помер Никодим, ну и х\*й с ним" (Nikodim has died and so be it [and nobody gives a s\*\*t about it])? I came up with a Yoda-like verse "dead and gone cares no one" but I am looking for a real British saying if it exists. | 2016/09/03 | [
"https://english.stackexchange.com/questions/346620",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/194633/"
] | I think the colloquial expression is ***dead and buried***. It sort of implies *forgotten*.
We, perhaps, use it less for people, than in a metaphorical sense for things we are glad to see the back of.
*By the time our Prime Minister arrives home from China the Hinckley Point project may be **dead and buried***.
This... | Possibly *died in obscurity* is closer to the intended meaning, although it is not exactly the same. |
354,411 | I'm trying to magnetize various objects, such that they take on a strong magnetic field.
Theoretically, magnetism is caused by aligning electrons such that they stay more or less in the same place.
If i heat the electrons, they're more energetic, and thus likely won't be in the same place. But could i theoretically... | 2017/08/29 | [
"https://physics.stackexchange.com/questions/354411",
"https://physics.stackexchange.com",
"https://physics.stackexchange.com/users/100335/"
] | The object is not 0 dimensional. Only a thin line of points lies along the line of 0 incidence angle. The rest of the object is slightly off that line, making the incident angle nonzero. This causes refraction and can make objects appear closer or farther than they are. | Let's say you only have one eye open and you're directly in front of the object. The thing is, your pupil has some size to it. Rays that enter are not only leaving the medium surrounding the object at 0 degrees. Your lens must change shape for the rays entering the edges of the pupil to form an image on your retina, an... |
9,745,518 | I've designed and implemented a neural network in Java and need to test it with large amounts of data that I have. My laptop is unfortunately too weak for that. Is there a way to run this task online somewhere for free or a small fee? | 2012/03/16 | [
"https://Stackoverflow.com/questions/9745518",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/338825/"
] | You could try [Ubuntu in the cloud](https://try.cloud.ubuntu.com/) - if you like it and need more than one hour, you can rent instances on Amazon EC2. | Well, there are some sites offering "**cloud computing**". Sounds like you'd want to rent yourself some CPU time on a cloud.
Or you could do some benchmarking on your code and see if you can get it fast enough to run on your PC. |
491,092 | The idea of automatic memory management has gained big support with new programming languages. I'm interested if concepts exists for automatic management of other resources like files, network-sockets etc.? | 2009/01/29 | [
"https://Stackoverflow.com/questions/491092",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/21005/"
] | For single threaded applications, the pattern of a resource being available for the extent of a block of code, with clean-up at the end, exists in several languages. Examples are the use of [RAII](http://en.wikipedia.org/wiki/Resource_acquisition_is_initialization) in C++, or [with-open-file](http://www.lispworks.com/d... | One of the reasons we can automatically manage memory allocation now is we have so much of it.
Back in the days when memory was tight you had to squeeze the most out of every bite the system had.
Other resouces such as file handles and sockets are far fewer, and still need to be handled by hand (pun intended).
Consi... |
491,092 | The idea of automatic memory management has gained big support with new programming languages. I'm interested if concepts exists for automatic management of other resources like files, network-sockets etc.? | 2009/01/29 | [
"https://Stackoverflow.com/questions/491092",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/21005/"
] | For single threaded applications, the pattern of a resource being available for the extent of a block of code, with clean-up at the end, exists in several languages. Examples are the use of [RAII](http://en.wikipedia.org/wiki/Resource_acquisition_is_initialization) in C++, or [with-open-file](http://www.lispworks.com/d... | Object persistence and caching subsystems can be considered an automatic allocation of files and resources. If you apply a caching subsystem to a network connection you don't have to care about file opening, file deleting, and so on.
A way to manage automatically network connection could be done in parallel computing... |
37,998 | I'm working on a bike where the right shifter was not working and I replaced it. it's a 7 gear cassette and the problem now is that the rear derailleur would not shift down past 3. When I manually I moved it down it stays there. It does shift back up all the way to 7. Shift down and it stops a 3 even though the shifter... | 2016/04/03 | [
"https://bicycles.stackexchange.com/questions/37998",
"https://bicycles.stackexchange.com",
"https://bicycles.stackexchange.com/users/22720/"
] | Detach the cable at the derailleur and see where the derailleur sits. If its not in line with the lowest cog you need to adjust the lower limit screw. This is usually marked with an L. Screw it out until the top jockey wheel of the derialleur is precisely in line with the smallest cog. Reattach the cable with shifter o... | It may be that the there is either grit in the derailleur, a burr in the metal, or maybe the spring has been over stretched. If it is the last it may be from a time when something was pressing on the mech that stretched the spring out too far. It wouldn't mean that the spring wouldn't pull all the way back to its norma... |
37,998 | I'm working on a bike where the right shifter was not working and I replaced it. it's a 7 gear cassette and the problem now is that the rear derailleur would not shift down past 3. When I manually I moved it down it stays there. It does shift back up all the way to 7. Shift down and it stops a 3 even though the shifter... | 2016/04/03 | [
"https://bicycles.stackexchange.com/questions/37998",
"https://bicycles.stackexchange.com",
"https://bicycles.stackexchange.com/users/22720/"
] | Detach the cable at the derailleur and see where the derailleur sits. If its not in line with the lowest cog you need to adjust the lower limit screw. This is usually marked with an L. Screw it out until the top jockey wheel of the derialleur is precisely in line with the smallest cog. Reattach the cable with shifter o... | **Check if your B-tension screw should be screwed in further (clockwise)**
If you can shift up (to slower gears) fine then it is likely that cable tension is OK.
Then, if you have already checked that there is no unreasonable friction in the system:
* detach cable outer casing and move it around manually to feel if ... |
37,998 | I'm working on a bike where the right shifter was not working and I replaced it. it's a 7 gear cassette and the problem now is that the rear derailleur would not shift down past 3. When I manually I moved it down it stays there. It does shift back up all the way to 7. Shift down and it stops a 3 even though the shifter... | 2016/04/03 | [
"https://bicycles.stackexchange.com/questions/37998",
"https://bicycles.stackexchange.com",
"https://bicycles.stackexchange.com/users/22720/"
] | It may be that the there is either grit in the derailleur, a burr in the metal, or maybe the spring has been over stretched. If it is the last it may be from a time when something was pressing on the mech that stretched the spring out too far. It wouldn't mean that the spring wouldn't pull all the way back to its norma... | **Check if your B-tension screw should be screwed in further (clockwise)**
If you can shift up (to slower gears) fine then it is likely that cable tension is OK.
Then, if you have already checked that there is no unreasonable friction in the system:
* detach cable outer casing and move it around manually to feel if ... |
38,950 | I've always read that the great benefit of 401k's and IRA's are the compounding of interest.
My entire 401k invests in a S&P index fund and I make semi-monthly contributions and there is one annual profit sharing deposit from my employer.
So, how exactly is my 401k compounding if it doesn't earn interest? | 2014/10/21 | [
"https://money.stackexchange.com/questions/38950",
"https://money.stackexchange.com",
"https://money.stackexchange.com/users/836/"
] | During the course of the year, the S&P individual stocks will have some dividends. Not every last stock but a good number of them. Enough that the average dividend for the S&P has been about 2% recently.
So if the S&P index goes up, say 10%, an S&P fund should go up closer to 12%.
For a fund holder, you'd normally s... | You might be confusing two different things.
An advantage of investing over a long term is the compounding of *returns*. Those returns can be interest, dividends, or capital gains. The mix between them depends on what you invest it and how you invest in it. This advantage applies whether your investment is in a taxabl... |
36,748,966 | I am familiar with SSIS for basic tasks, but in this case I am looking for some guidance around calling a web service in multiple threads. I have a large record set coming through my data flow, and for each record I need to call out to a web service and retrieve a value based on existing data in the row. The value retu... | 2016/04/20 | [
"https://Stackoverflow.com/questions/36748966",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/6230340/"
] | You are looking for the [Balanced Data Distributor](https://msdn.microsoft.com/en-us/library/jj191628.aspx). It is designed for situations like this. Similar in concept to Tab's suggestion of a Conditional Split but instead of you guessing at how to equally distribute the load, the BDD will detect backpressure in outpu... | You could use a conditional split to separate your data into multiple dataflow threads and put a call to the webservice on each of the threads.
You can't do it internally in a single script component. A script component receives one row at a time, and can't hold a row in memory and get the next row.
EDIT: I have veri... |
8,883 | I wrote [this question](https://serverfault.com/questions/801017/how-can-i-point-my-businesss-domain-name-to-my-businesss-facebook-page) 24 hours ago and amazingly, no less than FIVE of the mods put it "on hold." Apparently I wasn't specific enough in pointing out that this was a BUSINESS QUESTION.
I appropriately ad... | 2016/09/05 | [
"https://meta.serverfault.com/questions/8883",
"https://meta.serverfault.com",
"https://meta.serverfault.com/users/131455/"
] | I think most of the regulars contributing on Meta can see the [revision history of your question](https://serverfault.com/posts/801017/revisions) but for completeness sake the original question I cast the fifth and final close vote on:
>
> *I own a domain and have a web hosting package at Network Solutions. I'd like ... | >
> I thought the reaction to my question was a little over-the-top (a simple comment requesting clarification would have sufficed), so my reaction to the reaction was likewise.
>
>
>
Questions are easily closed and easily reopened. If a question has problems, putting it on hold until these problems are resolved i... |
5,970,451 | We're using Infragistics WPF v9.2 and MVVM
I'd like to track the currently selected row from the XamDataGrid as a property in the view model but I'm struggling to see how this is done. It looks like ActiveDataItem property would be the way to go but it doesn't appear to be on the WPF v9.2 grid. | 2011/05/11 | [
"https://Stackoverflow.com/questions/5970451",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/749459/"
] | The ActiveDataItem property would allow you to bind what is the active record to a property in your VeiwModel but wouldn't give you the actual selection of the XamDataGrid. For this you would need to use a custom behavior. The following link has examples of this for some of the Infragistics Silverlight controls and you... | if you can, pls upgrade to 10.3.
had the same pain of trying to get WPF UltraGrid to work with MVVM with older 9 version.
v10.3 version is much easier and better integrated with MVVM.
not sure if upgrade costs money, we had sitewide license |
760,819 | I have a very simple program written in 5 min that opens a sever socket and loops through the request and prints to the screen the bytes sent to it.
I then tried to benchmark how many connections I can hammer it with to try to find out how many concurrent users I can support with this program.
On another machine (wh... | 2009/04/17 | [
"https://Stackoverflow.com/questions/760819",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/79567/"
] | The quick answer is 2^16 TCP ports, 64K.
The issues with system imposed limits is a configuration issue, already touched upon in previous comments.
The internal implications to TCP is not so clear (to me). Each port requires memory for it's instantiation, goes onto a list and needs network buffers for data in transit... | You might wanna check out /etc/security/limits.conf |
760,819 | I have a very simple program written in 5 min that opens a sever socket and loops through the request and prints to the screen the bytes sent to it.
I then tried to benchmark how many connections I can hammer it with to try to find out how many concurrent users I can support with this program.
On another machine (wh... | 2009/04/17 | [
"https://Stackoverflow.com/questions/760819",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/79567/"
] | Is your server single-threaded? If so, what polling / multiplexing function are you using?
Using select() does not work beyond the hard-coded maximum file descriptor limit set at compile-time, which is hopeless (normally 256, or a few more).
poll() is better but you will end up with the scalability problem with a lar... | You might wanna check out /etc/security/limits.conf |
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