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If the oceans eventually become too acidified to sustain most marine life and the jellyfish take over, we can at least take solace in the fact that we’ll have an abundant source of renewable energy. GFP (Green Fluorescent Protein), the same protein isolated in Aequorea victoria that earned three researchers the Nobel P... | <urn:uuid:2dc67863-bb73-480a-91d7-8e76fdc4a021> | 3.78125 | 745 | Nonfiction Writing | Science & Tech. | 28.36125 |
In some past blogs I talked about the unfortunate lack of computer resources available to the National Weather Service (NWS), resulting in the U.S. trailing behind many international numerical weather prediction centers. This lack of computer resources undermines the ability of the NWS to run high-resolution weather mo... | <urn:uuid:f5c073df-0b10-4d9a-99b3-0150c5fad785> | 3.0625 | 1,227 | Personal Blog | Science & Tech. | 38.696418 |
Welcome to Matter Anti-Matter, a site about nerd stuff. By day, I'm Head of Community at Kickstarter.
You can also find me here .
Researchers from the Australian National University have announced that they have built a device that can move small particles a meter and a half using only the power of light.
Physicists ha... | <urn:uuid:d3262c4f-9f48-45de-b2df-655309242c20> | 3.5 | 196 | Personal Blog | Science & Tech. | 44.776088 |
On today's Moment of Science, we're talking about the giant weta, a record holder of the insect world that needs our protection.
Giant penguin populations started to decline about twenty five million years ago.
How lancewood tree leaves change to defend against the moa, a flightless bird.
Scientist are studying the ext... | <urn:uuid:b8ca1bb2-50b4-4f95-83be-900b43ba7f3f> | 3.625 | 304 | Content Listing | Science & Tech. | 55.723146 |
In C and C++, you can have 3 ways of write a number: a) decimal b) hexadecimal 3) octal
Posts tagged ‘Data Types’
Windows comes with two types that represent a Boolean variable (TRUE or FALSE.) Both represent FALSE if 0 and TRUE if non-zero.
A union is a memory location that is shared by two or more different types of ... | <urn:uuid:c84b12cb-79e8-4643-8f90-9c8f18ef6c12> | 3.171875 | 166 | Personal Blog | Software Dev. | 49.371154 |
5.1. Morphological Types and Masses of Double Galaxies
In the preceding chapters we have viewed galaxies in pairs as elementary units, ignoring any differences of morphological type. By taking these differences into account we can find new laws concerning the origin and coupled evolution of double galaxies. The first v... | <urn:uuid:c7c6998e-c07f-420d-9f78-c480742c224c> | 3.140625 | 3,258 | Academic Writing | Science & Tech. | 37.494535 |
Mathematics is the study of patterns. Studying pattern is an
opportunity to observe, hypothesise, experiment, discover and
Show that among the interior angles of a convex polygon there
cannot be more than three acute angles.
Can you mark 4 points on a flat surface so that there are only two
different distances between ... | <urn:uuid:6c59fa9b-01ed-40d7-8b24-97b2531c3135> | 4.3125 | 1,748 | Content Listing | Science & Tech. | 71.028344 |
|First half of page.||Second half of page.|
The Regions of Superdeformation
Superdeformed nuclei are beautiful examples of quantum rotors. They have been referred to as "nuclear pulsars" and indeed close analogies have been found between the fast rotation of the nucleus and that of a neutron star! Additionally we have ... | <urn:uuid:d7326750-46d9-4a3a-967b-6ebbbcff5ac0> | 3.453125 | 632 | Academic Writing | Science & Tech. | 22.062236 |
News from the deep: Oceana's crew aboard the Ranger has discovered a previously undocumented coral reef in the Alboran Sea in the high seas of the Mediterranean.
The reef, which is located more than 1,300 feet below the surface and covers over 1 million square feet, is formed primarily by white coral. With this discove... | <urn:uuid:3e22a580-dfa2-41e9-b579-71a94d3ab62b> | 2.84375 | 762 | Content Listing | Science & Tech. | 42.357142 |
A uniform plank of weight 150N and of length 4.0m rests horizontally on two bricks. One of the bricks is at the end of the beam. The other brick is 1.0m from the other end of the plank.
a) Sketch the arrangement and calculate the support force on the plank from each brick
My answer for A was: 50N and 100N.
b) A child s... | <urn:uuid:771a287c-7bed-417a-a485-6b49431f4fc3> | 3.75 | 134 | Q&A Forum | Science & Tech. | 94.200932 |
Publications Home » Finding the Lazy Programmer's Bugs
Traditionally developers and testers created huge numbers of explicit tests, enumerating interesting cases, perhaps biased by what they believe to be the current boundary conditions of the function being tested. Or at least, they were supposed to.
A major step forw... | <urn:uuid:9412937d-588b-475c-9bdb-c95361caa3ca> | 2.71875 | 433 | Academic Writing | Software Dev. | 25.719484 |
The granddaddy solar flare of all time has, until very recently, been regarded as the Carrington Event in 1859, the dawn of the telegraph age. The event was witnessed in real time by British astronomer Richard Christopher Carrington.
"Two patches of intensely bright and white light broke out," he later wrote. Carringto... | <urn:uuid:38bcd5b3-0706-4c8d-a1d9-397cf13c6e5c> | 3.609375 | 813 | Personal Blog | Science & Tech. | 47.635243 |
Normal cloud bottoms are flat.
This is because moist warm air
that rises and cools will condense into water droplets at a specific temperature,
which usually corresponds to a very specific height.
droplets grow, an opaque cloud forms.
Under some conditions, however, cloud pockets can develop that contain large droplets... | <urn:uuid:516791aa-33cd-47da-a502-002f9117febc> | 2.75 | 132 | Knowledge Article | Science & Tech. | 40.633333 |
Soufriere Hills volcano in Montserrat has been active for more than 14 years
Volcano expert Geoff Wadge explains how the International Charter on Space and Major Disasters helped manage a volcanic eruption in Montserrat.
The International Charter on Space and Major Disasters aims to provide timely and targeted satellit... | <urn:uuid:8b32fe22-262c-42f5-b823-c1ddeeb92c36> | 3.53125 | 1,144 | Nonfiction Writing | Science & Tech. | 38.65787 |
At 07:36 AM 10/24/97 PDT, you wrote:
>Pardon my ignorance, but what does the ".db" command to anyway? I don't
think I have seen it mentioned in the "Online Zshell School" thing.
It's define byte, it can define 1 byte, like in
or it can be used to insert a string like
.db "42 is the answer!", 0
Wherever the .db appears,... | <urn:uuid:768c88d3-92da-49eb-bf83-aa106b11f434> | 3.3125 | 285 | Comment Section | Software Dev. | 81.924358 |
Whole Body Ozone Chemistry
In this activity, students will play the roles of various atoms and molecules
to help them better understand the formation and destruction of ozone in the
Ozone, a molecule containing three oxygen atoms, is made when UV light breaks
the bonds of oxygen molecules containing two oxygen atoms in... | <urn:uuid:69e5c287-c622-4996-96ee-9786f4ad9029> | 4.15625 | 2,679 | Tutorial | Science & Tech. | 40.510975 |
401 Argyresthia laevigatella
(Heydenreich, 1851)Wingspan 9-13 mm.
One of the plainer species of Argyresthia, which can be confused with A. glabratella though the latter species is generally slightly smaller.
The two species have different foodplants, laevigatella feeding on larch, usually European larch (Larix decidua)... | <urn:uuid:236f2607-c7d6-4942-836d-7303cc2e4b03> | 2.875 | 161 | Knowledge Article | Science & Tech. | 51.045 |
I am endlessly fascinated by volcanoes — their power, the science behind them, and of course their terrible beauty. I’ve stood on a few (though never an active one — but that’ll happen someday!) and they are among the most amazing geological features on our planet.
In the past few years, we’ve started getting incredibl... | <urn:uuid:c05e0101-7c87-41bf-b607-99b51e7ec2c7> | 3.375 | 516 | Personal Blog | Science & Tech. | 47.597608 |
|Camponotus sp (worker)|
|> 1,000 species|
Carpenter ants are large (.25 to 1 in or 0.64 to 2.5 cm) ants indigenous to many parts of the world. They prefer dead, damp wood in which to build nests. They do not consume it, however, unlike termites. Sometimes carpenter ants will hollow out sections of trees. The most like... | <urn:uuid:c5ac105c-3615-4372-8072-eae077a698e4> | 3.5 | 1,676 | Knowledge Article | Science & Tech. | 45.443013 |
The power of our oceans has long been seen as potential source of energy.
The UK has some of the best wave and tidal resources in the world, but it's only in the last decade that it has become more than a pipe dream. By 2020, the UK could produce 2GW of energy from wave and tidal power - enough to supply 1.4 million ho... | <urn:uuid:3d459e54-6ded-4397-8846-48360d707e1e> | 3.234375 | 258 | Content Listing | Science & Tech. | 51.620648 |
Science news articles about 'development timeline'
... in 1962, the seventh edition of the IISD Sustainable Development Timeline highlights key meetings, events, publications and other milestones that have paved the path toward sustainability ...
NEW HAVEN, Conn., May 12 (UPI) -- A Moroccan fossil trove suggests soft-b... | <urn:uuid:44b2688b-3143-4665-a951-5e6b83337507> | 2.75 | 186 | Content Listing | Science & Tech. | 42.05771 |
Prometheus (Saturn XVI)
Orbit:139,350 km from Saturn
Diameter:91 km (145 x 85 x 62)
Discovered by:S. Collins and others in 1980 from Voyager photos.
Prometheus is the inner shepherd satellite of the F ring.
Prometheus has a number of ridges and valleys and several craters about 20 km in diameter but appears to be less ... | <urn:uuid:b1cf8661-7c9e-418f-b588-cba18d51756b> | 3.84375 | 384 | Knowledge Article | Science & Tech. | 60.202155 |
6.1.1 Ground-Based Selection
Ground-based surveys have used morphological criteria, colour selection and emission line selection. Lists of blue compact galaxies were pioneered by Zwicky, followed by Fairall and others who isolated objects from their anomalous high surface brightness as seen on the Palomar Sky Survey. S... | <urn:uuid:3cd4bda8-d66c-40cc-bc54-5090863c186c> | 3.296875 | 510 | Academic Writing | Science & Tech. | 38.0092 |
I did not write for the Globe and Mail in 1993 let alone about climate!
global av temp (ignoring pinatubo drop) is about 0.2C above 1991 level after 22 yrs – so I was spot on so far!
As you can see, the graph he cites shows 0.5 degrees of warming since he made his prediction, so it seems that he is applying a 0.3 degre... | <urn:uuid:1fef19a5-412b-4b0a-906e-6e4b9e71a418> | 2.8125 | 580 | Personal Blog | Science & Tech. | 64.851355 |
December 2nd, 2010 | Ted Dhillon
Temperatures reached record levels in several regions during 2010, the World Meteorological Organization (WMO) says, confirming the year is likely to be among the warmest three on record. Full article at http://www.bbc.co.uk/news/science-environment-11903397
You can’t argue with those n... | <urn:uuid:a3e968b3-aa04-419e-8602-58e119a5e504> | 2.78125 | 227 | Personal Blog | Science & Tech. | 54.769167 |
"We scientists made a mistake.
We thought that the next cycle was going to be quiet. Some of our data was off by a 20 and that's why we are issuing this alert now. We made a mistake.
The next cycle will be much more serious than we previously thought," said Dr. Michio Kaku, one of the world's leading experts in theoret... | <urn:uuid:24983257-0d5a-4db9-8d64-7c3572acffd2> | 2.71875 | 1,118 | Content Listing | Science & Tech. | 49.976764 |
First there was SETI@home
, allowing the public to help search for artificial radio signals in radio observatory data by donating spare computing time on their PCs. Then Stardust@home
was born, in which people scrutinise images of the Stardust spacecraft's dust collector, in order to help locate valuable bits of space ... | <urn:uuid:b25b715f-1290-45e5-b3fb-57ccc984922f> | 3.484375 | 513 | Personal Blog | Science & Tech. | 38.828122 |
|Feb19-13, 12:58 PM||#1|
Variation in radioactive decay rates
I would like to hear opinions on the variation in decay rates as described by Fischbach and coworkers and how (if at all) this will affect radioemtric dating. Does this phenomenon indeed exist or is it the result of errors in experimental technique?
|Feb19-1... | <urn:uuid:5c2c230e-48d6-4bd1-ac05-bf98ae9dc80c> | 2.71875 | 1,495 | Comment Section | Science & Tech. | 58.938722 |
Head Tilt Mouse
Ever since Mario Capecchi, Martin Evans, and Oliver Smithies created the first knockout mouse in 1989, genetically engineered animals have steadily increased in popularity for all kinds of biology research: simply pick a gene, turn it off in the mouse, and see what happens.
Knockout mice are undoubtedly... | <urn:uuid:e96a63fc-5468-4868-a299-71c29bb6340c> | 3.125 | 483 | Truncated | Science & Tech. | 29.563013 |
In the course of discussing light physics and vision, the question has been asked how the actual location of a planet, say Mars, is determined and if the calculation uses the apparent location as a variable, and if the calculation corrects for the light speed time delay. If we can get an actual formula and brief explan... | <urn:uuid:cd20c3dd-1bea-4162-8a42-4f0455ca37b6> | 3.109375 | 183 | Comment Section | Science & Tech. | 38.158683 |
You are on a carousel with a linear speed , such that
Let denote the tangential component of the Coriolis force exerted on your body at time t and let its magnitude equate 1. Calculate
The normal component of angular velocity is constant.
I have been working on this problem for >6 hours to no avail. I have tried to get... | <urn:uuid:0fd4ac6d-c6b0-459b-8f8e-dcb19207522c> | 2.953125 | 160 | Q&A Forum | Science & Tech. | 48.427861 |
Did you know there were principles of forecasting? I don't mean like the positions of the planets. Which for time spans of tens of thousands of years is fairly mechanical. The kind of forecasting I'm talking about involves events that are less deterministic than the motions of the planets. And yet there are principles.... | <urn:uuid:a604a60e-5844-4deb-8884-738deaac0bad> | 2.734375 | 1,226 | Personal Blog | Science & Tech. | 46.945825 |
When it's hot out, you'll often see dragonflies perched on a stem in the sun with their long bodies (abdomens) sticking straight up towards the sky. It looks like they are doing some sort of insect handstand, but they are really working on thermoregulation, and their strange posture is called obelisking. Not all dragon... | <urn:uuid:e5ecb8ed-9b87-4881-9224-c8e0ef0a73f5> | 3.1875 | 631 | Personal Blog | Science & Tech. | 47.260988 |
Thank you very much
This article is really helpful for me and anyone who are learning JAVA as beginner level like me :-). Again thank you and wish you all the best
Architecture of application
is also attribute to point of view.
Thank you very much.
Ladislav...Architecture of application Hello,
I would like to know your... | <urn:uuid:83321584-1504-4ebd-975c-c8fe45f8decb> | 2.71875 | 445 | Comment Section | Software Dev. | 48.193346 |
This story is in the news again, so I’ve reposted my description of the paper from 3½ years ago. This is an account of the discovery of soft organic tissue within a fossilized dinosaur bone; the thought at the time was that this could actually be preserved scraps of Tyrannosaurus flesh. There is now a good alternative ... | <urn:uuid:e9cee154-7230-40b6-893c-4be0ecf913a0> | 3.109375 | 827 | Personal Blog | Science & Tech. | 34.619502 |
The Dayton Daily News notes an overnight frost quake centered around Darke County, Ohio on February 10, 2011.
The quake, or cryoseism as it’s known in scientific circles, occurs when moisture soaks into the soil and a quick freeze causes a sudden, even violent expansion and contraction. Darke County’s 911 director Bran... | <urn:uuid:f915a223-2f16-4575-920a-7314c29f0ad1> | 2.9375 | 532 | Personal Blog | Science & Tech. | 44.277699 |
How Things Work: Ring Laser Gyros
- By Linda Shiner
- Air & Space magazine, September 2002
(Page 2 of 2)
“What causes the light to stretch? The fact that it had to go farther. Because when it comes back, it has to come back exactly the same way it left,” says Koper. “It has to resonate.”
Sagnac’s counter-rotating beams... | <urn:uuid:8936e879-5612-4376-bb3e-802ae1c42165> | 2.71875 | 392 | Truncated | Science & Tech. | 47.488389 |
Science Fair Project Encyclopedia
Generally, the members of the ectoprocta phylum are colonial aquatic animals (also known as moss animals). Although the individual members are microscopic, colonies can grow up to one foot in length. They can reproduce both sexually and asexually. The Ectoprocta are one of the few clas... | <urn:uuid:2b2604c5-3ad2-49e1-af77-aba6802bdbd3> | 3.265625 | 140 | Knowledge Article | Science & Tech. | 40.590208 |
>> Study Material
>> IIT JEE Physics
>> Electric Current
>> Specific Resistance of Material of wire using Meter Bridge
Specific resistance of the material of a wire using a meter bridge
A known length (L) of a wire is connected in one of the gaps (P) of a metre bridge, while a ‘resistance box’ is inserted into the othe... | <urn:uuid:2fc4d838-8b47-4709-a25b-e09b175a0979> | 3.453125 | 265 | Tutorial | Science & Tech. | 48.238596 |
By Alana Range
Sea level rise — we've heard about it, but what does it actually mean, and how will it affect you, and the community where you live?
Independent research has already predicted that by 2100, sea level may rise by one meter, due to a combination of the melting of land-based ice sheets and the warming ocean... | <urn:uuid:7760ec5b-1ecf-4b2a-a3e9-f94e0e69401c> | 3.84375 | 527 | Knowledge Article | Science & Tech. | 53.180087 |
The left-hand image is a Dawn FC (framing camera) image, which shows the apparent brightness of Vesta’s surface. The right-hand image is based on this apparent brightness image, which has had a color-coded height representation of the topography overlain onto it. The topography is calculated from a set of images that w... | <urn:uuid:9f4d7e57-dcd9-4bec-a312-9241df9bce59> | 3.328125 | 560 | Knowledge Article | Science & Tech. | 43.553212 |
Northern Florida Swamp Snake
Scientific name: Seminatrix pygaea pygaea (COPE 1871)
* Currently accepted name
* scientific names used through time
- Contia pygaea – COPE 1871
- Tropidonotus pygaeus – BOULENGER 1893
- Seminatrix pygaea – DOWLING 1950
- Seminatrix pygaea pygaea – DOWLING 1950
Description: Average adult si... | <urn:uuid:9e5b4ca7-cac7-4388-b143-91f3f0b667cb> | 3.1875 | 561 | Knowledge Article | Science & Tech. | 49.282636 |
The pink and orange gamete bundles that look like caviar eggs but are actually hermaphroditic clusters of eggs and sperm are migrating up the polyps toward the oral cavities, the corals' single, multipurpose orifices. Each night these bundles have been growing and stretching the polyps until they resemble nothing so mu... | <urn:uuid:eb4dfb91-28f7-4483-b5f5-d872e28a83c9> | 3.078125 | 2,707 | Nonfiction Writing | Science & Tech. | 33.307123 |
An object in the icy Kuiper belt has been found orbiting the Sun backwards, compared to most other objects in the solar system. It may help explain the origin of an enigmatic family of comets typified by Comet Halley.
The new object, called 2008 KV42, lies in the Kuiper belt, a ring of icy bodies beyond Neptune. Its or... | <urn:uuid:81765c1a-93bd-4af2-a578-a7ef19b4b549> | 3.5625 | 982 | Comment Section | Science & Tech. | 66.255698 |
More In This Article
Editor's note: This article is the second of a three-part series by John Carey. Part 1, posted on June 28, is "Storm Warning: Extreme Weather Is a Product of Climate Change".
Extreme floods, prolonged droughts, searing heat waves, massive rainstorms and the like don't just seem like they've become ... | <urn:uuid:f5c9014f-f930-4cac-b96a-fd9cfe05f940> | 3.90625 | 845 | Truncated | Science & Tech. | 48.811345 |
Classic blueschists. The slight blue tinge results from the
mineral glaucophane (an amphibole), which here forms the rather stubby needles.
This rock started life as a volcanic rock of basic composition, part of the
old ocean floor of Tethys. Blueschists are comonly thought to be diagnostic
of former subduction zones, ... | <urn:uuid:7ccff102-e7e4-4de6-b10b-f61cb8feb867> | 2.703125 | 105 | Knowledge Article | Science & Tech. | 25.915357 |
Small local hunting communities in Siberia are very distant from any governmental control. Hunted waterbird species, including globally and regionally threatened species, rely for their well-being on the self regulation of remote hunting communities. Interviewed hunters showed a profound knowledge of Baikal Teal, its p... | <urn:uuid:4af1b4a6-217a-415a-a334-090d1d45d197> | 2.71875 | 991 | Content Listing | Science & Tech. | 20.073715 |
Consider the different ways of representing state in Prolog. First, there's the functional way, in which the state of the entire program is passed around from predicate to predicate in the form of additional arguments. Although burdensome, this approach interacts well with backtracking: when a failure occurs, changes t... | <urn:uuid:8e128cc6-f4c2-4913-8e6f-5678787a2a50> | 2.859375 | 538 | Personal Blog | Software Dev. | 45.981311 |
in the constellation Leo
75 million light-years
210 million times the mass of the Sun
Diameter slightly less than the size of the orbit of Jupiter
At first glance, NGC 3608 is an unremarkable galaxy. It is an elliptical galaxy, so it looks like a faint, fuzzy football with no discernible features other than its bright ... | <urn:uuid:51a786cb-392f-4c04-a7df-7ee9b7c8a273> | 4.03125 | 316 | Knowledge Article | Science & Tech. | 59.223116 |
For 20 years, field scientists participating in CI’s Rapid Assessment Program (RAP) have been exploring some of the world’s most abundant, mysterious and threatened tropical ecosystems; to date, they’ve discovered more than 1,300 species new to science. Entomologist and RAP Director Leeanne Alonso describes a day in th... | <urn:uuid:0e823ebf-67db-4685-97bc-c62ade836ded> | 4.25 | 1,352 | Personal Blog | Science & Tech. | 61.283638 |
Firehose-Like Jet Observed In Action
The Chandra images in this montage show the erratic variability of a jet of high energy particles that is associated with the Vela pulsar, a rotating neutron star. These images are part of a series of 13 images made over a period of two and a half years that has been used to make a ... | <urn:uuid:3d4d1b33-2206-490a-80a7-de9df928556a> | 4.0625 | 476 | Knowledge Article | Science & Tech. | 45.825051 |
Test Precisely and Concretely
Although it is important to test for desired, essential behavior rather than incidental behavior of an implementation, this should not be construed or mistaken as an excuse for vague tests. Tests need to be both accurate and precise.
Something of a tried and tested (and testing) classic, s... | <urn:uuid:5638af15-9089-41e3-8bf9-152e66ed676e> | 3.0625 | 743 | Knowledge Article | Software Dev. | 48.274432 |
Date: Sat, 13 Sep 2003 17:40:46 -0400
Author: "Fred Stein"
Subject: Re: Latent Heat
Another way to demonstrate latent heat to students as young as middle school is to heat a beaker of water that contains a large test tube of pure parafin wax until the wax melts completely. Each beaker and tube will contain a thermomete... | <urn:uuid:87c775bf-348b-4606-8ed4-06d6bbc72c98> | 3.1875 | 473 | Comment Section | Science & Tech. | 76.939921 |
The pipes module defines a class to abstract the concept of a pipeline — a sequence of converters from one file to another.
Because the module uses /bin/sh command lines, a POSIX or compatible shell for os.system() and os.popen() is required.
The pipes module defines the following class:
>>> import pipes >>> t=pipes.Te... | <urn:uuid:3c2da9cc-accf-4508-bd7d-e0b686012cb7> | 3.328125 | 286 | Documentation | Software Dev. | 73.624894 |
Appendix A. A model for locating regenerated trees.
The pattern of trees was retained over time by first fitting a statistical model to the empirical tree pattern, and then locating new trees using the fitted model. More specifically, we first analyzed the empirical tree pattern using the K-function for point patterns ... | <urn:uuid:96bee133-0b63-48b9-a27f-51c28996e02f> | 2.703125 | 783 | Academic Writing | Science & Tech. | 63.269383 |
Glories - My Pictures
A glory is a circular disc or ring of light seen at the antisolar point when looking downwards either from an aircraft or a mountain towards cloud or fog. The shadow of the observer appears at the centre of the disc and there are usually coloured fringes resembling those seen in a rainbow. It appe... | <urn:uuid:0279258f-84e6-43ef-aa68-d531505c93ae> | 2.75 | 283 | Personal Blog | Science & Tech. | 58.485681 |
You are hereA "Chembow" Observed in Prince Edward County, Ontario, July 3 2010
A "Chembow" Observed in Prince Edward County, Ontario, July 3 2010
" Have you noticed anything unusual in the sky lately? If you're over 30 or so (as of this writing), you may remember what a clear blue sky looks like. Otherwise, you may not... | <urn:uuid:164d7c5d-f2e4-4bb6-9528-775f802b7d51> | 2.703125 | 280 | Knowledge Article | Science & Tech. | 50.188444 |
Eric Louis Mann, Ph.D.
University of Connecticut, 2005
"As students progress through the educational system their interest in mathematics diminishes. Yet there is an ever increasing need within the workforce for individuals who possess talent in mathematics. The literature suggests that mathematical talent is most ofte... | <urn:uuid:855fedc0-5bb2-41ea-bbf8-dc1c91326015> | 3.28125 | 688 | Academic Writing | Science & Tech. | 21.860254 |
I've come across an example that I can't understand. Can somebody explain what is happening here?
So, I get that if I can get the base to be something that is equal to 1 (mod 3), then I know that the overall answer is also 1 mod 3. What I don't understand is the simplification that is used.
The example just shows one m... | <urn:uuid:db349e74-9f79-4daf-ad30-a2719d52ecfc> | 2.796875 | 139 | Q&A Forum | Science & Tech. | 75.225 |
The reasons you should care about this are laid out better in this video, which explains a lot more of the details:
At 3:26 they nicely explain about the reduced voltage required (which means it's more efficient) of 1.6 Volts instead of 2.3 volts of the 1.2 volts you could potentially recover in a fuel cell.
At 3:55 th... | <urn:uuid:7afedafb-5e27-4eea-a653-fe6101b44119> | 2.734375 | 238 | Personal Blog | Science & Tech. | 73.897273 |
Forams live today in all the world's oceans, but they first appeared in the rock record approximately 525 million years ago. Between that long ago time and today, the size, shape and construction of foram tests changed significantly. Tests might be single-chambered or multi-chambered, right coiling or left coiling, lar... | <urn:uuid:115e44a8-cbf5-45de-86d0-c0ac19333d5c> | 3.84375 | 251 | Knowledge Article | Science & Tech. | 23.306683 |
Like many islands, Hawaii is incredibly dependent on petroleum. It meets 85% of its energy needs by burning petroleum, according to State figures. The distinguishing factor between Hawaii and the continental United States is that Hawaii relies on petroleum for electricity generation. Whereas the US as a whole meets onl... | <urn:uuid:3b649dd8-c21a-4225-9409-a64cfc078ef6> | 3.515625 | 1,517 | Knowledge Article | Science & Tech. | 23.889305 |
Reproducibility forms one of the cornerstones of physics; independent scientists need to corroborate a finding before it's widely accepted in the scientific community.
But sometimes the window of observation only lasts for several hours twice every hundred years or so. That makes reproducibility fairly difficult.
Earli... | <urn:uuid:dcefd9a2-7006-47d9-9d9f-5c5edaf17b40> | 3.875 | 853 | Nonfiction Writing | Science & Tech. | 39.138979 |
Originally published in:
Encyclopedia of Planetary Sciences, edited by J. H. Shirley and R. W. Fainbridge,
905-907, Chapman and Hall, New York, 1997.
Venus is sometimes characterized as Earth's 'twin' because of its close proximity in solar system location (~ 0.72 AU heliocentric distance compared to 1.0 AU) and its si... | <urn:uuid:fe07e68a-b447-49ec-87a0-050c983c99a0> | 4.1875 | 2,674 | Academic Writing | Science & Tech. | 40.174597 |
Science Fair Project Encyclopedia
In astronomy, many stars are referred to simply by catalogue numbers. There are a great many different star catalogues which have been produced for different purposes over the years, and this article covers only some of the more frequently quoted ones. Most of the recent catalogues are... | <urn:uuid:c8568388-1b12-4293-8cda-4a62dca5d8ad> | 3.875 | 2,863 | Knowledge Article | Science & Tech. | 50.714547 |
"There is no joy more intense than that of coming upon a fact that cannot be understood in terms of currently accepted ideas."
What are the stars made of? The answer to this fundamental question of astrophysics was discovered in 1925 by Cecilia Payne and explained in her Ph.D. thesis. Payne showed how to decode the com... | <urn:uuid:2e356855-8533-4ff5-b57c-ba7e5290fee3> | 3.703125 | 1,632 | Knowledge Article | Science & Tech. | 41.04949 |
This case study compares dynamic light scattering to other methods such as transmission electron microscopy and x-ray diffraction for the determination of particle size for Cadmium Selenide...
http://www.azonano.com/article.aspx?ArticleID=1098 | 20 Jan 2005
Researchers have succeeded in fabricating quantum dot sensitiz... | <urn:uuid:9ba317df-7174-419b-82cf-a14558d67148> | 2.828125 | 597 | Content Listing | Science & Tech. | 50.035066 |
Simply begin typing or use the editing tools above to add to this article.
Once you are finished and click submit, your modifications will be sent to our editors for review.
The ultimate purpose of firing is to achieve some measure of bonding of the particles (for strength) and consolidation or reduction in porosity (e... | <urn:uuid:17ac26ec-4668-44bd-9a80-3d16ecf356f0> | 3.359375 | 134 | Knowledge Article | Science & Tech. | 35.477036 |
The first experimental tower to be erected is to be 665 feet high, with 200-foot turbine wheels, and located near Berlin.
- Jun 1932
Seems a bit Rube Goldberg by today's standards. --Ed.
Currents in Upper Air Form Unfailing Source of Power for Windmills of Future
Wind, at the surface of the earth, is proverbially uncer... | <urn:uuid:bd4234cc-e861-476a-a6b6-07f5d86ae77e> | 3.1875 | 185 | Comment Section | Science & Tech. | 50.1825 |
Research Index / Materials Science / Laser System
Our group uses one of the two 10 Hz laser systems at CUOS. At 10 Hertz, a pulse occurs every 0.1 seconds and each pulse in our system lasts for 100 femtoseconds (1 fs = 0.000000000000001 seconds = 1 millionth of a billionth of a second).
The system is Ti:sapphire-based ... | <urn:uuid:dbdd1403-2977-47d0-93cb-471e76879012> | 3.71875 | 3,356 | Knowledge Article | Science & Tech. | 53.48416 |
Animal fact sheets
Think you know a lot about Australian wildlife? See if you can answer the questions below, then check out the fact sheets to see if you were right.
Australian brush turkey
QUESTION: How do brush turkeys keep their eggs warm until they hatch?
QUESTION: Why do magpies sometimes swoop at people during s... | <urn:uuid:ff365952-2cd2-4889-90b1-ced2852a5bc5> | 3.21875 | 637 | Content Listing | Science & Tech. | 69.401913 |
HTML versions of the experiments are added as they are assigned in class. Many have links to other pages that either provide background information or specific information related to techniques involved in the experiment itself, such as how to use an electronic balance correctly.
Exp. 1: The Quality of Laboratory Measu... | <urn:uuid:21b031dd-3d48-4d84-87ce-975285b291e0> | 3.515625 | 315 | Structured Data | Science & Tech. | 45.511535 |
Mutually exclusive events vs Independent events
In regards to probability, are Mutually exclusive events the same as Independent events?
If not, how are they different?
Events [tex]A[/tex] and [tex]B[/tex] are mutually exclusive if [tex]A \cap B = \emptyset,[/tex] which means they cannot both occur. Those events are in... | <urn:uuid:d8fab256-7941-497d-b698-fb38d6290d99> | 2.828125 | 426 | Q&A Forum | Science & Tech. | 69.248508 |
FASM provides a useful macro that saves us having to explicitly declare and initialise a string. Instead of providing a pointer to the variable which contains our string, we can just type in the string itself.
Thus the line that writes to the console becomes
invoke WriteConsole,[outhandle],"Hello World!",12,numwritten,... | <urn:uuid:07a4bb9e-ce86-4b51-82f8-3ee49dfacf29> | 3.125 | 221 | Documentation | Software Dev. | 49.089006 |
|Mineral class||Silicates : Nesosilicates : Zircon - tantalite group.|
|Habitus||Short prismatic dipyramidal crystals or irregular grains.|
|Cleavage||Imperfect, uneven to conchoidal fracture.|
|Color||Colorless, red, brown, yellow, green or gray. Transparent to opaque.|
|Luster||Vitreous, adamantine to greasy.|
|Occur... | <urn:uuid:70de2835-0644-4092-9248-52a244d017bf> | 3.203125 | 285 | Knowledge Article | Science & Tech. | 34.828575 |
NOCTILUCENT CLOUDS: MYSTERY IN THE HIGH ATMOSPHERE
About two years after the catastrophic eruption of Krakatoa in 1885, sky watchers in Europe began seeing splendid displays of clouds in the evening sky that apparently had not been seen before. These wispy filaments of electric blue and white cloud were unique because ... | <urn:uuid:a8b6989b-3bd4-47f1-b80f-219f17ea887b> | 3.5 | 3,294 | Personal Blog | Science & Tech. | 45.144366 |
Simple API for XML
David Megginson, principal of Megginson Technologies, led the development of the Simple API for XML (SAX), a widely-used specification that describes how XML parsers can pass information efficiently from XML documents to software applications. SAX was originally implemented in Java, but is now suppor... | <urn:uuid:d173e415-3323-4e8f-8fdc-a2014d44c488> | 2.953125 | 273 | Knowledge Article | Software Dev. | 23.527426 |
Scientific name: Gavia immer
Length: 27 - 35 inches
Wingspan: around 60 inches
Weight: males larger; anywhere from 3.5 to 17 pounds
Plumage: black, white and gray; darker during the breeding seasons; in winter, evenly gray; mainly distinguished by straight, black (and sharp) bill
Range: mostly found in northern United ... | <urn:uuid:b8545e32-f906-4513-8c97-dea40a9d25b8> | 3.59375 | 580 | Knowledge Article | Science & Tech. | 43.376421 |
Basics of optically pumped astrophysical lasers
Optical (visible and near-IR) astrophysical lasers are pumped by selective photoexcitation performed through a ‘photoexcitation by accidental resonance’ (PAR) process; a process introduced by Kastner and Bhatia. This chapter considers some known examples of PAR and how in... | <urn:uuid:2b4a9ca9-d026-4a8c-b7db-cba766e4e6a4> | 2.84375 | 144 | Truncated | Science & Tech. | 23.820542 |
MAKING WAVES: Waves are the result of wind traveling over water. Imagine a breeze blowing gently across the surface of a lake, creating small waves. The waves arise from the surface tension of water. The molecules on the water's surface hold together and form a sort of 'skin', which makes the surface stretchy, and ther... | <urn:uuid:9a697d21-d08f-4535-b990-421f8d4e37d3> | 4.28125 | 220 | Knowledge Article | Science & Tech. | 35.48847 |
Well we've been discussing air masses over the past few blogs, and yesterday I told you a front is the "front-line" so to speak of these air masses.
Today we'll start learning more about fronts.
Cold fronts, stationary fronts, warm fronts, back door cold fronts, occluded fronts...you may have never realized there are s... | <urn:uuid:60da42b6-c5ef-4caa-9e71-84969bcf18e4> | 3.96875 | 366 | Personal Blog | Science & Tech. | 65.080775 |
- number of column positions of a wide-character code
#include <wchar.h> int wcwidth(wchar_t wc);
The wcwidth() function determines the number of column positions required for the wide character wc. The value of wc must be a character representable as a wchar_t, and must be a wide-character code corresponding to a vali... | <urn:uuid:2047b449-3f3b-4afc-af01-fc201d8a836b> | 2.71875 | 168 | Documentation | Software Dev. | 45.447345 |
Hydrogen (H2) the lightest element, has a gaseous specific gravity of 0.0695 and a boiling point of -423 F (-252.8 C) at atmospheric pressure. It is a colorless, odorless, tasteless, flammable gas found at concentrations of about 0.0001 % in air. Hydrogen is produced by several methods, including steam/methane reformin... | <urn:uuid:810e1255-c5fb-4c71-820b-a8816e24b87f> | 3.578125 | 1,080 | Knowledge Article | Science & Tech. | 52.535418 |
|How to Think Like a Computer Scientist|
source ref: ebookit.html
I haven't said much about it, but it is legal in Java to make more than one assignment to the same variable. The effect of the second assignment is to replace the old value of the variable with a new value.
The output of this program is 57, because the f... | <urn:uuid:77ed1b27-26ad-4f9b-9835-cfa51986056d> | 3.9375 | 2,729 | Documentation | Software Dev. | 52.312219 |
hello.. i do not understand this question was hoping that someone could guide me through this..
A flat circular disc, of radius R, can be modelled as a thin disc of negligible thickness.
It has a surface mass density function given by f(r,0) = k(1-r^2/R^2),
where k is the surface density at the centre and r is the dist... | <urn:uuid:37569ebc-6e9b-4c46-8297-4fe0eff7242c> | 2.9375 | 127 | Q&A Forum | Science & Tech. | 87.238041 |
These researchers are proposing that aircraft can function more efficiently using superconducting turbines, which are powered by superconducting magnets. I'm not kidding you.
A superconducting magnet, however, would be much more efficient and powerful for its size. When chilled to 77 kelvins (–321 degrees Fahrenheit) o... | <urn:uuid:7080780b-dc55-4766-b35c-9cf9465c6b0c> | 3.34375 | 353 | Personal Blog | Science & Tech. | 35.040897 |
Wednesday December 7, 2011 05:55
Before starting php. Important Things
Posted by pradeep as PHP
What is php ?
php is one of the programming languages. It is mostly used in web things.
Many peoples get confused on how to start learning php? If you want to study all theories and be theoritical then that doesnt
entertain.... | <urn:uuid:0773af18-7773-4e0c-a493-f872193803c0> | 2.921875 | 964 | Personal Blog | Software Dev. | 68.852632 |
Learn more physics!
What is heat energy?
Without getting into the picky points about how the words are used
precisely, heat energy is the energy involved in all the little random,
small-scale jigglings of things. For example molecules bounce around
randomly and squish into each other. The motion has kinetic energy and
... | <urn:uuid:d33b4aea-a020-407a-9145-88f5bb9c8cec> | 3.015625 | 104 | Q&A Forum | Science & Tech. | 52.48 |
As the European spacecraft the Beagle (named after Darwin's ship) heads for Mars, scientists are looking at the results of an earlier search for life
on Mars, by the NASA Viking landings in 1976. Former mission scientist Gil Levin says he has evidence proving that we really did find signs of life on
Mars during that mi... | <urn:uuid:90ead99e-3222-4575-8fac-7b6d3b267c6a> | 3.421875 | 268 | Comment Section | Science & Tech. | 45.259536 |
Wasps vs. Beetles: Battle Wages to
In the forests of Wisconsin, a quiet but fierce battle to save the state’s ash tree population has begun. In response to the infestation of invasive emerald ash borers, entomologists from the University of Wisconsin-Madison (UWM) have released hundreds of parasitic wasps to help rid t... | <urn:uuid:6c4e8797-ac2c-41d1-b01f-4409478d8f70> | 3.453125 | 345 | Knowledge Article | Science & Tech. | 46.665587 |
The World Is Involved In Biomass Energy
The entire world is now involved in the production of Biomass Energy. Being able to take products that grow naturally in the environment and turn them into an energy to supply the needs of the industrial world is exciting. Biomass is the nomenclature for organic materials such as... | <urn:uuid:4b5ec647-d6be-478c-b493-68f8a929f3d6> | 3.4375 | 605 | Knowledge Article | Science & Tech. | 36.788071 |
While the tight coupling of the PVM and perl's front-end does cause some problems, there is still a clearly defined intermediate representation (IR) that is generated by perl's front-end. This section discusses that IR.
The perl IR consists of a parse tree. In the context of perl, this IR is commonly referred as the ``... | <urn:uuid:0d518044-68f8-488a-8048-8aa6390afa39> | 3 | 296 | Academic Writing | Software Dev. | 62.198317 |
Increase in Groundwater Use and Sea-Level Rise
As aquifers are pumped out around the world, the water ultimately makes it to the oceans.
Groundwater depletion will soon be as important a factor in contributing to sea-level rise as the melting of glaciers other than those in Greenland and Antarctica, scientists say.
Tha... | <urn:uuid:f7d04256-851e-4089-b990-a7007182c2ac> | 3.5625 | 336 | Truncated | Science & Tech. | 38.813197 |
Wayne Stollings wrote:
They warrant investigation, but without some evidence of mechanism the only uncertainity is whatever one wished to believe. I can believe there is a Martian heat ray being used by a spaceship cloaked from detection and claim uncertainty because I have created it in my mind. There is no evidence t... | <urn:uuid:f9b229bd-f2a1-4d7c-96eb-2f97c53f1fb8> | 2.765625 | 1,176 | Comment Section | Science & Tech. | 48.158288 |
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In the double-slit experiment, without which-path information available, the diffraction pattern is usually shown as an even function with respect to the displacement from the midpoint of the slits: something like sin ay / y. (This is the case in Feynman's lectures, and many others.) The question was posed as to whethe... | <urn:uuid:d019a59c-4489-44f4-8f1e-91ea8c19d81a> | 2.75 | 287 | Comment Section | Science & Tech. | 51.2695 |
Jan. 10, 2013 Chris Martin has bred more than 3,000 hybrid fish in his time as a graduate student in evolution and ecology at UC Davis, a pursuit that has helped him create one of the most comprehensive snapshots of natural selection in the wild and demonstrated a key prediction in evolutionary biology.
"We can see a s... | <urn:uuid:3d6a4f30-3ad5-4082-bf07-07d516899908> | 3.609375 | 731 | Truncated | Science & Tech. | 54.751139 |
Often, a software project will have one or more central repositories, directory trees that contain source code, or derived files, or both. You can eliminate additional unnecessary rebuilds of files by having SCons use files from one or more code repositories to build files in your local build tree.
It's often useful to... | <urn:uuid:e8e1baec-f604-42b7-b95e-be6f22e3410d> | 3.375 | 257 | Documentation | Software Dev. | 21.785135 |
Tantalum: the essentials
Tantalum is a greyish silver, heavy, and very hard metal. When pure, it is ductile and can be drawn into fine wire, which can be used as a filament for evaporating metals such as aluminium. Tantalum is almost completely immune to chemical attack at temperatures below 150°C, and is attacked only... | <urn:uuid:9cde50fe-0429-4800-adcc-c9bdc26a88e3> | 3.359375 | 437 | Knowledge Article | Science & Tech. | 29.158774 |
Simultaneity - Albert Einstein and the Theory of Relativity
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Imagine two observers, one seated in the center of a speeding train car, and another standing on the platform as the train races by. As the center of the car passes the observer o... | <urn:uuid:6f3a5dd6-6c01-432c-b050-202cb176c930> | 3.78125 | 911 | Truncated | Science & Tech. | 42.570217 |