text large_stringlengths 148 17k | id large_stringlengths 47 47 | score float64 2.69 5.31 | tokens int64 36 7.79k | format large_stringclasses 13
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Egg | Larva/Caterpillar |
Pupa | Adult
The primary job of the adult stage is to reproduce—to mate
and lay the eggs that will become the next generation. Monarchs do not mate until
they are three to eight days old. When they mate they remain together from one afternoon
until early the next morning—often up to 16 hours! ... | <urn:uuid:8f7aefda-25ff-48b8-8964-36e5d8dd9383> | 4.03125 | 638 | Knowledge Article | Science & Tech. | 49.609962 |
The El Niño-Southern Oscillation (ENSO)
Floods and mudslides in Ecuador, droughts and wildfires in Australia, and extreme California rainstorms – could all of these events be triggered by the same thing? Yes they can. It’s the El Niño-Southern Oscillation (ENSO), a combination of changes in the ocean and atmosphere tha... | <urn:uuid:2c383a53-d26e-47b1-9d9e-a0aca26530d6> | 4.09375 | 516 | Knowledge Article | Science & Tech. | 43.611016 |
Nuclear Blasts Show Terrifying PowerBy Tony Long
It was 63 years ago today that the United States detonated the very first atomic bomb. Three weeks later, the only two A-bombs dropped in warfare destroyed Hiroshima and Nagasaki, Japan. Many nuclear -- and thermonuclear -- bombs have been tested since. Here are some ima... | <urn:uuid:cec1a346-cc6c-4a90-a5ce-829fa44cc15a> | 3.28125 | 251 | Truncated | Science & Tech. | 52.989705 |
This article was written by Sarah Rich in January 2007. We're republishing it here as part of our month-long editorial retrospective.
For several years, I lived in an apartment in San Francisco where my bedroom window faced directly onto Haight Street. The quietest time of day fell somewhere between the bar-hoppers and... | <urn:uuid:af3d5b80-d697-4d2e-b0a8-33a1b4058920> | 3.0625 | 976 | Nonfiction Writing | Science & Tech. | 29.593924 |
The Australian ghost bat (Macroderma gigas) is one of the largest of all microbats. It is the only carnivorous bat in Australia and is included among a number of species referred to as false vampire bats (see story, page 11). It perches in vegetation, darting down to catch small mammals and reptiles, killing them with ... | <urn:uuid:06259be4-5887-4ec9-aac6-cfd1c3583466> | 3.328125 | 186 | Knowledge Article | Science & Tech. | 50.160884 |
I wrote another column for Discover (the actual magazine), which is now available online. It’s about how far back in cosmological time we can push our knowledge on the basis of actual data, not mere theory.
Of course we literally look back in time every time we peer into a telescope, since it takes time for light to tr... | <urn:uuid:27f3e18b-2e6d-4cd7-8599-8e35e05c1802> | 3.421875 | 488 | Personal Blog | Science & Tech. | 51.161855 |
|Poster: Earth's Energy Budget|
|This NASA poster depicting the Earth's Energy Budget, with Activities, is available at http://science-edu.larc.nasa.gov/energy_budget.|
|Tour of the Electromagnetic Spectrum|
http://missionscience.nasa.gov/ems/index.html This series of eight videos covers an introduction to electromagne... | <urn:uuid:19d0dd65-e23a-4a4f-ba33-7f8d3ccda413> | 3.390625 | 1,123 | Content Listing | Science & Tech. | 30.043464 |
This Article Explain about all the features and characteristics of JAVA language.
JAVA is Simple :
Java is designed to be easy for the professional programmer to learn and use. If you have some programming experience , you will not find java hard to master. In java there are a small number of clearly defined ways to ac... | <urn:uuid:05b02c93-9501-41a5-a82e-46c77e960f1f> | 3.609375 | 357 | Knowledge Article | Software Dev. | 41.27138 |
Chunk:Cascading Style Sheet
A Cascading Style Sheet or CSS is used to control the presentation of an HTML page. For example, a CSS file will often control the font, margins, color, background graphics, and other aspects of a web page's appearance. CSS allows you to separate the content of an HTML page from it's appeara... | <urn:uuid:3a97cd43-c1a9-497f-ba02-676cfec74ced> | 2.75 | 95 | Documentation | Software Dev. | 65.405 |
General Astronomy/Thermal Radiation
All objects emit energy in the form of electromagnetic radiation. As the atoms are shaken by random thermal motion, the moving charge of the electrons causes them to emit a changing electromagnetic field. In general, the cooler the body, the slower the motion of its atoms and molecul... | <urn:uuid:13d5f871-5dfa-42c4-8c9b-0082c7b4f72b> | 4.3125 | 309 | Knowledge Article | Science & Tech. | 33.833155 |
See also the
Dr. Math FAQ:
0.9999 = 1
0 to 0 power
n to 0 power
0! = 1
dividing by 0
Browse High School Number Theory
Stars indicate particularly interesting answers or
good places to begin browsing.
Selected answers to common questions:
Infinite number of primes?
Testing for primality.
What is 'mod'?
- Proof that Sqrt... | <urn:uuid:f2b76cc2-5543-416f-8fd7-1abc476142b2> | 2.703125 | 1,826 | Q&A Forum | Science & Tech. | 86.177688 |
Radioactivity, Temperature, Pressure
Name: Bob B.
Date: Thursday, August 22, 2002
Does the decay rate of U238 vary with temperature and pressure?
Not significantly. U238 decays by emitting an alpha particle (a helium
nucleus). The decay rate is determined almost entirely by the environment
in the nucleus. Temperature a... | <urn:uuid:e45ba026-e068-4132-ace5-59f3b14ffe52> | 3.453125 | 459 | Q&A Forum | Science & Tech. | 45.361778 |
This is a commentary on DOI:10.1029/2003JD003610
Climate and Dynamics
Earthshine and the Earth's albedo: 2. Observations and simulations over 3 years
Article first published online: 29 NOV 2003
Copyright 2003 by the American Geophysical Union.
Journal of Geophysical Research: Atmospheres (1984–2012)
Volume 108, Issue D... | <urn:uuid:5068d491-0d91-43ad-9ba0-a20d4b5b1489> | 3.0625 | 537 | Academic Writing | Science & Tech. | 42.846462 |
A while ago I had a discussion with someone about the speed of an object when it hits the ground. When does an object hit the ground faster:
- When you launch the object to the sky so it can fall down;
- Or when you launch the object to the ground so it doesn't have to deal with much air resistance.
The attraction “The... | <urn:uuid:76a374bf-c10a-4eea-904d-41109c9c57c0> | 2.765625 | 222 | Q&A Forum | Science & Tech. | 65.935 |
NASA: We May Be On the Verge of a “Mini-Maunder” Event.
This week, scientists from the US Solar Observatory and the US Air Force Research Laboratory have discovered – to their great surprise – that the sun’s activity is declining, and that we might experience the lowest solar output we’ve seen since 1645-1715. The Regi... | <urn:uuid:31e9f478-fa4b-41af-a2a0-fc2ede5d057a> | 2.875 | 358 | Personal Blog | Science & Tech. | 43.722261 |
ENABLE TRIGGER (Transact-SQL)
Enables a DML, DDL, or logon trigger.
Enabling a trigger does not re-create it. A disabled trigger still exists as an object in the current database, but does not fire. Enabling a trigger causes it to fire when any Transact-SQL statements on which it was originally programmed are executed.... | <urn:uuid:be19d4a5-71e9-4d8b-9b3c-89e81e910a80> | 2.796875 | 390 | Documentation | Software Dev. | 42.559033 |
It is very hard to even think about the state of early man of earth when he had no home, no instruments or weapons, and no clothes. Man, unlike other living beings, has a more active and functional brain. However, his brain is not the sole factor which has made him far more progressive, advanced and developed than any ... | <urn:uuid:c6c0d91e-42ff-446b-99fb-7682d9d2d558> | 3.28125 | 438 | Knowledge Article | Science & Tech. | 38.095 |
Fascinating article in the Guardian here, which suggests that in order to buy us more time from global warming we should paint everything white?
It sounds simple, but the effect could be dramatic. Study after study has shown that buildings with white roofs stay cooler during the summer. The change reduces the way heat ... | <urn:uuid:319619e5-eb43-4b64-9535-16c9f30d155d> | 2.953125 | 585 | Personal Blog | Science & Tech. | 48.431147 |
References: FORMAT integer printing (p. 388-9)
Edit history: Version 1, Pavel, 10-Jun-87
Version 2, Masinter, 15-Jun-87
There are times when users would like to print out numbers with some punctuation
between groups of digits. The "commachar" argument to the ~D, ~B, ~O, ~X, and
~R FORMAT directives was introduced to fi... | <urn:uuid:05056027-02be-4291-b7f5-6c00f1ec1c1c> | 3.234375 | 749 | Documentation | Software Dev. | 44.968098 |
Diatoms have cell walls made of silica, constructed like pill- or date-boxes, and can be preserved in sediments over many centuries. The structure of the walls can be seen after cells have been treated to remove the organic contents.
Diatom species are usually identified by the shape and patterns of the silica walls. S... | <urn:uuid:40291868-d4bd-43d0-b09c-261261c9a62a> | 3.6875 | 376 | Knowledge Article | Science & Tech. | 62.928748 |
|An alligator lily in Everglades National Park.|
Michael Huston is now involved in a high-stakes project whose ultimate success may depend on whether his ideas about species diversity, ecological modeling, and land-use tradeoffs are proven right or wrong. The Clinton administration has made the restoration of Florida B... | <urn:uuid:9f9ae9ce-324e-4319-bfd3-869c1c468502> | 3.5 | 1,069 | Knowledge Article | Science & Tech. | 26.533819 |
View a collection of video clips and associated information related to projectile motion.PBS Teachers
View a lesson plan on the topic of projectile motion. The lesson plan centers around the physics of juggling and is presented by PBS Teachers.Shockwave Studios
The Projectile Simulator activity from the Shockwave Studi... | <urn:uuid:5978acec-2770-4428-97d0-5802007d2877> | 4 | 1,167 | Tutorial | Science & Tech. | 44.025425 |
|May11-12, 06:00 PM||#1|
Periodic Table/ Elements toxic to one another?
So Arsenic is poisonous to Oxygen based life forms (Humans). What would be poisonous to a Sulfur based life form (if they exsisted)?
|May11-12, 09:34 PM||#2|
There are metallotolerant bacteria, which can tolerate relatively high levels of As and ot... | <urn:uuid:957647e8-5200-48e4-a5e4-a5cb0d9e57eb> | 3 | 361 | Comment Section | Science & Tech. | 43.166788 |
atk.ObjectFactory — the base object class for a factory used to create accessible objects for objects of a specific GType.
This class is the base object class for a factory used to create
an accessible object for a specific GType. The method
is normally called to store in the registry the factory type to be used
to cre... | <urn:uuid:7d36b366-cf12-430d-b292-fd8afe99082e> | 2.765625 | 148 | Documentation | Software Dev. | 37.589138 |
Web edition: January 9, 2013
For years, scientists had assumed that geysers and other types of hot springs spewed water that came from deep inside Earth. Now researchers working at a Philippine volcano have stumbled across an exception. Hot springs flowing into a lake in the volcano’s crater come from a shallow source ... | <urn:uuid:22a313bf-54dc-4918-be39-191009b310a0> | 3.109375 | 83 | Truncated | Science & Tech. | 50.778424 |
It's difficult to think of free oxygen, which makes up 21 percent of earth's atmosphere, as a poisonous gas. Virtually all organisms alive today need oxygen to survive. Even plants, which expel oxygen into the atmosphere, need oxygen to live. There was a time early in earth's history, however, when living organisms not... | <urn:uuid:48edee81-8caa-4634-bd05-9b1b8517ce66> | 3.859375 | 493 | Knowledge Article | Science & Tech. | 35.606667 |
Franklin Fact Archive
Back to Franklin Facts homepage.
Back to TV12
THURSDAY AUGUST 24 - OCEAN TEMPERATURES FROM SPACE: A WEB SITE
Now that we're in hurricane season, forecasters look very carefully at measurements
of ocean temperature. That's because hurricanes generally don't form unless the water's
at least 80oF, an... | <urn:uuid:781d4789-3a8b-417e-8fa2-85a49319b056> | 3.15625 | 209 | Truncated | Science & Tech. | 37.791923 |
Physics is the study of basic properties, materials, and forces in our Universe. Our new physics section will start off with some background material about space, time, and matter. It will also include sections on mechanics, electricity and magnetism, thermal physics, atomic physics and particle physics, and tools for ... | <urn:uuid:33f6a69b-c0a8-4dcc-bf95-03b966be2a93> | 3.6875 | 393 | Content Listing | Science & Tech. | 21.801042 |
A fluxgate magnetometer for measuring magnetic fields.
Image courtesy the Auroral Observatory of the University of Tromso, Norway.
Instruments & Techniques for Space Weather Measurements
How do scientists measure space weather? Let's take a look!
Scientists watch the Sun with special telescopes. Some of the telescopes ... | <urn:uuid:1115609f-006a-4363-8a4a-84535d23f0df> | 4.0625 | 741 | Knowledge Article | Science & Tech. | 38.44187 |
I found this article interesting.
Scientists Clueless over Sun's Effect on Earth
By Robert Roy Britt, LiveScience Senior Writer
posted: 05 May 2005 02:01 pm ET
Share this story
Email While researchers argue whether Earth is getting warmer and if humans are contributing, a heated debate over the global effect of sunligh... | <urn:uuid:7bdb5df9-4eb6-4d45-9346-68e6669c89c4> | 3.421875 | 1,147 | Comment Section | Science & Tech. | 46.000662 |
Heat transfer coefficient
The heat transfer coefficient, in thermodynamics and in mechanical and chemical engineering, is used in calculating the heat transfer, typically by convection or phase transition between a fluid and a solid:
- Q = heat flow in input or lost heat flow , J/s = W
- h = heat transfer coefficient, ... | <urn:uuid:0b25143b-f51f-4198-bfc6-7362a079099e> | 4.03125 | 3,097 | Knowledge Article | Science & Tech. | 36.275179 |
Ocean Temps Reach Record Highs in Northeast
During the first six months of 2012, sea surface temperatures in the Northeast Shelf Large Marine Ecosystem were the highest ever recorded, according to the latest Ecosystem Advisory issued by NOAA’s Northeast Fisheries Science Center (NEFSC). Above-average temperatures were ... | <urn:uuid:faa59d21-6910-4734-bd2a-82ba4c80aec3> | 2.75 | 188 | Truncated | Science & Tech. | 36.672143 |
One of the areas of physics that had been getting a lot of publicity is the area of metametrials/left-handed materials that produces negative index of refraction. The "sexy" aspect of this study is the possibility of "cloaking" an object having such left-handed properties from electromagnetic radiation, even if it is o... | <urn:uuid:79d16225-f865-44bf-b3de-a1cd77a07a1d> | 2.78125 | 387 | Personal Blog | Science & Tech. | 53.586312 |
While not all manmade tunnels are tiled, this type of surface is used for underground roadways and railways all around the world. As it turns out, there are some very good reasons for this.
The main reason why tunnels are tiled is the same reason why most showers are tiled. Smooth ceramic tile is fairly easy to clean b... | <urn:uuid:4a39c95e-b280-49b0-bd3e-c3a2276e7f9a> | 3.0625 | 574 | Knowledge Article | Science & Tech. | 47.300449 |
Weird creatures trapped in a sunless, frigid, briny dungeon deep beneath the ice at Blood Falls — has a nice horror-movie ring to it, doesn’t it? And for microbes, they have quite the exotic back story. They’ve been living in dark pockets of an ancient saltwater lake trapped under the advancing Taylor Glacier in Antarc... | <urn:uuid:cc8ad878-b645-4e39-8b1d-13e2ba3f5942> | 3.734375 | 426 | Personal Blog | Science & Tech. | 39.161667 |
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.
presence in clay minerals
The water adsorbed between layers or in structural channels may further be divided into zeolitic and bound waters. The l... | <urn:uuid:876b3f5b-b0e2-4cb6-803f-998b85de9e9a> | 2.71875 | 141 | Knowledge Article | Science & Tech. | 53.411722 |
Climate Change FAQ's
Latest News on Carbon Conservation
Real-World Climatology: Records and Observations
Signup For E-mail Alerts
Virtual Climate Alerts
World Climate Report Online
||This - the last point of inflection on the curve T (h) and while the lowest temperature region (in the mesopause it can drop to 150 K). F... | <urn:uuid:a01a2bc2-0b07-455b-ac84-da93fcea32b7> | 3.421875 | 487 | Tutorial | Science & Tech. | 47.035666 |
These web pages provide an explanation of forces in accelerating reference frames. Topics include centrifugal force and what is felt in vehicles that are speeding up or slowing down. This is part of "From Stargazers to Starships", an extensive web site that introduces physics and astronomy using topics in space explora... | <urn:uuid:19809dd8-9ae2-4d43-ae99-fb5005a6a26d> | 2.765625 | 174 | Knowledge Article | Science & Tech. | 47.293325 |
Joined: 16 Mar 2004
|Posted: Tue Aug 19, 2008 11:25 am Post subject: Joining up nanocircuits
|Joining up nanocircuits
A team of scientists based in the UK and Germany have covalently bonded strings of porphyrin molecules on a gold surface - a step forward in the quest to develop nano-electronics.
Other researchers have... | <urn:uuid:79ba81ea-8151-4371-bf93-6cb04d44a3c9> | 3.4375 | 610 | Comment Section | Science & Tech. | 29.762666 |
Virus and Cells
Name: Nikki D.
Date: April 2004
Based on the structure of the plasma membrane and
transport mechanisms, how does an airborne virus enter the cell of the
Look up "endocytosis" in a good biology textbook. It's the process where bits of the cell
membrane are pinched off into the interior of the cell. It's ... | <urn:uuid:dc6e799a-239f-4ff6-a7b0-aa43177ac175> | 3.84375 | 273 | Knowledge Article | Science & Tech. | 60.663658 |
By Brendan Borell of Nature magazine
One in five of the world’s invertebrate species are threatened with extinction, according to the latest report from the Zoological Society of London (ZSL).
From the checkerspot butterfly to the giant squid, spineless creatures are thought to represent around 99% of biodiversity on E... | <urn:uuid:6f36e12a-181f-4041-a237-95734a6312de> | 3.6875 | 743 | Truncated | Science & Tech. | 26.492992 |
SVG: Modularized and mobile (1/2) - exploring XML
SVG: Modularized and mobile
Mid-February the W3C released last call drafts of SVG 1.1 and SVG Mobile. SVG 1.1 is a modularized form of SVG 1.0, specified in W3C XML Schema rather than DTDs. By dividing up the functionality of SVG into modules, it facilitates the product... | <urn:uuid:f7c46298-b188-4e3a-91d7-f453f2616e6c> | 2.703125 | 1,001 | Knowledge Article | Software Dev. | 54.959285 |
Bug of the Week
Sowbug (Order Isopoda)
Lots of regional names for these guys: sowbug (Midwest U.S.), pillbug (Great Lakes region and northeast U.S.), potato bug (Great Lakes and Intermountain West), roly-poly (most common to the southeast U.S) and wood louse (scientists).
The crater-like surface being negotiated by the... | <urn:uuid:9414482b-8558-433a-83af-f7723cd47861> | 2.828125 | 738 | Knowledge Article | Science & Tech. | 61.438308 |
Kepler's Supernova, from Wikimedia Commons
We are all made of stardust
I am still mulling over the things we learned and the things we saw at our star party at Leasburg Dam State Park last week. The instructor explained that we actually are made of stardust, because most elements on earth were created in the hearts of ... | <urn:uuid:9801580c-e0e3-4400-a4d1-65eaf1a20338> | 3.046875 | 235 | Personal Blog | Science & Tech. | 58.977518 |
New Horizons mission
New Horizons is a NASA mission to explore Pluto and other distant objects in the Solar System. The spacecraft was launched in 2006 and passed Jupiter in March 2007. As of September 2008 it has passed beyond Saturn's orbit , and is expected to reach Pluto in 2015.
It is the first mission ever launch... | <urn:uuid:24765af6-1c90-47f0-b892-0a3d0836b5e9> | 3.390625 | 105 | Knowledge Article | Science & Tech. | 62.216658 |
Water is H2O. You know that. Well, sometimes water breaks apart into two halves: a hydrogen ion (H+) and a hydroxide ion (OH-). Notice that if you put the hydrogen and hydroxide ions back together, you will restore H2O (2 hydrogen atoms and one oxygen atom). If you go looking around in web pages, you will see that the ... | <urn:uuid:d201724f-9e5d-4323-a858-3bf3cb10aeb1> | 3.671875 | 1,477 | Knowledge Article | Science & Tech. | 64.919325 |
The internal wave structure under the shore fast ice of McMurdo Sound was surveyed. An internal wave is a wave propagating along a density stratification in the water mass. The discontinuity in density is caused by a difference in the temperature or salinity on either side of the boundary surface in the water mass. Pre... | <urn:uuid:908ae599-af9f-4624-a7c0-9b592c41aa1d> | 2.875 | 180 | Knowledge Article | Science & Tech. | 34.023155 |
New Plasma Device Considered The ‘Holy Grail’ Of Energy Generation And Storage
Scientists at the University of Missouri have devised a new way to create and control plasma that could transform American energy generation and storage.
Randy Curry, professor of electrical and computer engineering at the University of Miss... | <urn:uuid:55d8fa5a-6167-45e6-9f3c-69dfd0428570> | 3.578125 | 236 | Truncated | Science & Tech. | 34.47 |
The Idea of Space Exploration
The dream of space travel is an ancient one. The first known description of a flight to the Moon is from an ancient Greek writer, Lucian of Samosata (190 A.D.). He had one of the characters in his, "A True Story" don eagle wings and fly to the Moon in order to learn how the stars came to b... | <urn:uuid:d9821b07-69ee-45f0-b5b5-bda78014224d> | 3.6875 | 673 | Knowledge Article | Science & Tech. | 50.860549 |
Exploring the geoengineering of climate using stratospheric sulfate aerosols: The role of particle size
Article first published online: 26 JAN 2008
Copyright 2008 by the American Geophysical Union.
Geophysical Research Letters
Volume 35, Issue 2, January 2008
How to Cite
2008), Exploring the geoengineering of climate u... | <urn:uuid:68e39b59-88ee-40a9-bc9a-567981d09a04> | 3.03125 | 446 | Academic Writing | Science & Tech. | 28.703125 |
The nice part about science is the ability to retest things as new data and better methods become available. In the case of climate change, new data and updated models are producing increasingly higher warming predictions for the end of this century. MIT joined other entities in retesting their predictions with their I... | <urn:uuid:96add12c-ece6-44d4-8b0e-8d7125382377> | 3.203125 | 853 | Personal Blog | Science & Tech. | 51.231607 |
Agile scrum methodology is a development method for managing projects and application development. Agile methodology is an approach that can help teams tackle the unpredictability of software building when using incremental or itinerant work cadences known as sprints. It was inspired by sequential or waterfall developi... | <urn:uuid:36aef916-d56d-4d21-8a6b-00c5e238c240> | 2.9375 | 992 | Knowledge Article | Software Dev. | 38.558676 |
Welcome to biology-online.org! Please login to access all site features. Create account.
Log me on automatically each visit
| Page history
| Printable version
(Science: zoology) One of the larger divisions of crustacea, so called because the thorax and abdomen are both segmented; Tetradecapoda. It includes the Amphipod... | <urn:uuid:9332aa52-ff5e-492e-9d25-6839d6d7e357> | 3.09375 | 182 | Structured Data | Science & Tech. | 47.003729 |
Problem 11: Incomplete dominance in a dihybrid cross.
Tutorial to help answer the question
In Mendel's experiments, the spherical seed character (SS) is completely dominant over the dented seed character (ss). If the characters for height were incompletely dominant, such that TT are tall, Tt are intermediate and tt are... | <urn:uuid:51a79060-2dd4-4cd1-a2d3-1c6127640b9a> | 3.203125 | 181 | Tutorial | Science & Tech. | 43.185366 |
In its natural state, air is a good insulator. However, if it’s adequately ionized, it can ultimately lead to “corona discharge”. What does that mean and why is it important? Let’s find out.
What’s Involved in Corona Discharge?
Arcing is probably something that you are all familiar with. This is when the electric poten... | <urn:uuid:aaf70fe0-50f6-4230-865d-564972a065ef> | 3.59375 | 910 | Comment Section | Science & Tech. | 36.774786 |
These newcomers wreak havoc by changing, degrading, or displacing native habitat. They may bring disease, and compete directly with wildlife for living space as well as food.
Invasive species move around the world in many ways:
Invasive Species and the Great Lakes
The Great Lakes, one of the greatest freshwater resourc... | <urn:uuid:f91efbdf-a01e-4e50-aec6-b89c6f09a43e> | 3.640625 | 285 | Personal Blog | Science & Tech. | 35.96631 |
Homepage photo of salmon embryo courtesy of Haruka Fujimaki, Mount Holyoke College, Mass., student. The image won 9th place in the Olympus Bioscapes Photomicroscopy Competition and was published in the Dec. 2009 issue of Scientific American.
Already on the brink, Atlantic salmon face a changing climate
Atlantic salmon ... | <urn:uuid:385d6db5-db04-4ad0-87a0-253628c4a1fa> | 3.765625 | 1,071 | Knowledge Article | Science & Tech. | 44.137389 |
RSS is a family of web feed formats used to publish frequently updated content such as blog entries, news headlines or podcasts. An RSS document, which is called a "feed," "web feed," or "channel," contains either a summary of content from an associated web site or the full text. RSS makes it possible for people to kee... | <urn:uuid:f5ac7754-8f2d-418d-a992-e0392c079643> | 2.796875 | 228 | Documentation | Software Dev. | 74.983515 |
Rapid Changes in Oxygen Isotope Content of Ice Cores Caused by Fractionation and Trajectory Dispersion near the Edge of an Ice Shelf
by Larry Vardiman, Ph.D.
Published in Creation Ex Nihilo Technical Journal, volume 11 (part 1), pp. 52–60, 1997.
© 1997 Creation Science Foundation, Ltd. A.C.N. 010 120 304. All Rights Re... | <urn:uuid:d8c92b2f-aa3c-47e9-8624-163892a37289> | 3.21875 | 409 | Academic Writing | Science & Tech. | 37.561615 |
Eventually Linearizable Shared Objects
Shared objects are a useful abstraction in the design of concurrent systems. A concurrent system consists of a collection of sequential processes communicating through shared objects. A shared object can be made tolerant to process failures by storing a copy of the shared object a... | <urn:uuid:ecb66218-bb24-4039-876f-e99667e49999> | 2.703125 | 95 | Knowledge Article | Software Dev. | 20.420819 |
In recent media interviews, I keep getting asked the same question: Where are our hurricanes? Aren't we having a quiet season? It's almost as if, following Katrina and a widespread sense that hurricanes are in some way tied to global warming, the public has come to think that the failure of the former to appear means t... | <urn:uuid:4212150c-b49a-41b3-9a70-298e9d6820fc> | 2.71875 | 604 | Personal Blog | Science & Tech. | 45.393385 |
Frank Jeffrey and Mike Coon, PowerFilm Solar
Chris - One of the problems with conventional solar panels is that they're very heavy. They're also fragile and they're stiff and that means itís very tricky to transport them and to install them. A flexible solar cell that you could roll up and then readily transport would ... | <urn:uuid:35335698-5c62-4a82-8142-70bf6c1cbbfd> | 3.4375 | 1,806 | Audio Transcript | Science & Tech. | 54.349209 |
Salps—transparent organism that range
from 0.5 to five inches long—are the subject of MIT-WHOI Joint Program graduate student Kelly Rakow Sutherland's PhD dissertation. Observing them in their habitat off the Pacific Coast of Panama, she focused on how the creatures balance their food-energy resources, which they use t... | <urn:uuid:29656b01-0474-4ff9-bbf2-11852f5de3e9> | 3.890625 | 227 | Knowledge Article | Science & Tech. | 50.175028 |
US Department of Agriculture, Natural Resources Conservation Service, Soil Survey Division, World Soil Resources
Orange and red show the areas where the risk of human induced desertification is higher. As it can be immediately seen, the most affected areas are along the equator line in Africa. Developing countries such... | <urn:uuid:88f03ca5-b6d8-4463-8959-931fc45f9c18> | 3.515625 | 375 | Content Listing | Science & Tech. | 31.176036 |
This video from the USA is called 6ft Black Rat Snake.
Global Warming Beneficial to Ratsnakes
Jan. 8, 2013 — Speculation about how animals will respond to climate change due to global warming led University of Illinois researcher Patrick Weatherhead and his students to conduct a study of ratsnakes at three different la... | <urn:uuid:2f404efe-a0de-4547-9a2b-88ba9f88264a> | 3.078125 | 176 | Personal Blog | Science & Tech. | 30.446667 |
Leaking Gravity May Explain Cosmic Puzzle
By Sara Goudarzi
Special to SPACE.com
posted: 28 February 2005
WASHINGTON, D.C. - Scientists may not have to go over to the dark side to explain the fate of the universe.
The theory that the accelerated expansion of the universe is caused by mysterious "dark energy" is being ch... | <urn:uuid:15b34fbe-838b-4e47-a5b3-5962e903aec1> | 3.015625 | 660 | Truncated | Science & Tech. | 38.735577 |
Tony Phillips, National Aeronautics and Space Administration, Science@NASA, Marshall Space Flight Center
This audio clip reports on a rare hurricane in the South Atlantic that crashed into the coast of Brazil. Weather satellites have been circling Earth for more than 40 years and during that time they have never before... | <urn:uuid:5738b88e-65df-4202-aff7-1237d8136957> | 3.4375 | 128 | Truncated | Science & Tech. | 34.156054 |
Imagine being able to detect harmful bacteria, viruses, or other contaminants with a simple swipe of a paper towel. Far-fetched as it might sound, such a technology already exists, though it’s not yet on the market.
The so-called “nano napkin” is a napkin made of ultra-fine polymer fibers 100 billionths of a meter (or ... | <urn:uuid:6681d248-54dc-4b06-82ff-2ba8c41bc16b> | 3.921875 | 248 | Knowledge Article | Science & Tech. | 40.183333 |
Ozone Hole Meteorology: 2008 Potential Vorticity
The Antarctic polar vortex acts as a barrier to the exchange of polar and midlatitude air. The potential vorticity (PV) is a conserved quantity that acts as a tracer for motion on an isentropic surface. Plotting contours of PV on an isentropic surface readily shows the e... | <urn:uuid:e1a1c777-6d62-4319-9b32-e7463784faff> | 3.546875 | 376 | Knowledge Article | Science & Tech. | 40.579122 |
Why study the parabola?
The parabola has many applications in real life. For example, radiation enters the parabola in an almost parallel fashion. It is concentrated on a single point where the antenna's receiver is placed. The parabola is a graph of a quadratic function. The quadratic equation is important to real-wor... | <urn:uuid:7f9fd46b-4ed1-4cc1-8357-ee7a4079d8ff> | 3.84375 | 276 | Tutorial | Science & Tech. | 65.032824 |
Solar Eclipses Overview
Solar and lunar eclipses are not independent. For both kinds of eclipse the Sun, Earth and Moon have to be aligned. If the lunar orbit plane did coincide with the ecliptic plane, there would be a lunar eclipse at each Full Moon and a solar eclipse at each New Moon. However, due to the inclinatio... | <urn:uuid:96da5265-177d-414f-b3b3-e564515c6a13> | 4.34375 | 927 | Knowledge Article | Science & Tech. | 50.150405 |
The opinions I more particularly allude to, are those of Berthollet on the Laws of chemical affinity; such as that chemical affinity is proportional to the mass, and that in all chemical unions, there exist insensible gradations in the proportions of the constituent principles. The inconsistence of these opinions, both... | <urn:uuid:2d4f2187-56e3-4ae1-a20e-829d7154dd37> | 2.875 | 1,870 | Academic Writing | Science & Tech. | 37.049559 |
The list of new and emerging technologies enabled by the convergence of nanotechnology, life sciences and information technology is one item longer today following the announcement from the University of Glasgow about inorganic biology.
The project head, Lee Cronin explains that “All life on earth is based on organic b... | <urn:uuid:c3efda46-fcfa-41fd-8da7-14afc5180439> | 2.71875 | 910 | Personal Blog | Science & Tech. | 24.744844 |
Alll I have seen on it says there is no steam involved, simply
mechanical pressure...I'm not sure how the thing works....there was a
guy named Schaeffer in Chicago (now dead) who was using high intensity
mechanical shock pressure applied to water to produce steam.
I have a bit of information on him with a couple of bad... | <urn:uuid:f7ece08b-a42a-4f86-85bf-c4ee521c986d> | 2.71875 | 632 | Comment Section | Science & Tech. | 61.613076 |
Lichens are classified by their fungal components. The name
given to lichens is actually the name of its fungal component. Therefore,
the identity of the photobiont does not determine the taxonomic grouping
of a lichen.
The taxonomic classification of C. coralloides is as follows:
Kingdom: Fungi: have non-motile bodies... | <urn:uuid:c9284b56-9f68-4c4e-ba2d-567b830423fd> | 3.96875 | 1,198 | Knowledge Article | Science & Tech. | 24.872152 |
“It all started when I was about six years old and saw that fantastic tornado in The Wizard of Oz.”
Photo by Carsten Peter, National Geographic
About Tim Samaras
Photo by Carsten Peter, National Geographic
As families scrambled to avoid deadly tornadoes, Tim Samaras raced straight toward them. He careened across the Un... | <urn:uuid:6572ddb0-58cd-4eb9-bc17-f29f4bd43a61> | 2.90625 | 1,175 | Nonfiction Writing | Science & Tech. | 46.97052 |
Applications of Special Relativity
The Twin Paradox
The so-called 'Twin Paradox' is one of the most famous problems in all of science. Fortunately for relativity it is not a paradox at all. As has been mentioned, Special and General Relativity are both self-consistent within themselves and within physics. We will state... | <urn:uuid:5d89dc97-2d70-4685-beae-7c514b2974a3> | 3.984375 | 1,046 | Academic Writing | Science & Tech. | 73.334192 |
Mite is a common name for most members of the subclass Acari, a large, diverse group of tiny ARACHNIDS
that also includes TICKS
. Worldwide, over 40 000 species of mites have been described of an estimated 500 000 to one million; in Canada, about 2500 of an estimated 11 000. Mites may exceed INSECTS
in numbers of indiv... | <urn:uuid:38c8ed50-3567-46bd-97ce-264c58d1798f> | 4.09375 | 917 | Knowledge Article | Science & Tech. | 37.555793 |
Symmetrical Vertical Curves
A symmetrical vertical curve is one in which thehorizontal distance from the PVI to the PVC is equal to the horizontal distance from the PW to the PVT. In other words, l1 equals l2.
The solution of a typical problem dealing with asymmetrical vertical curve will be presented step by step. Ass... | <urn:uuid:90532031-12dd-47fe-a460-158fbced40d5> | 3.8125 | 2,114 | Tutorial | Science & Tech. | 81.169047 |
Convection currents occur within:
Focus Question: What is the source of energy for convection currents
in the geosphere?
Convection currents in the magma drive plate tectonics.
Heat generated from the radioactive decay of elements deep
in the interior of the Earth creates magma (molten rock) in the aesthenosphere.
The ... | <urn:uuid:36c0e833-9e45-411b-a80e-b4f648e91065> | 4.5625 | 593 | Academic Writing | Science & Tech. | 37.022518 |
XML is used in many aspects of web development, often to simplify data storage and sharing.
If you need to display dynamic data in your HTML document, it will take a lot of work to edit the HTML each time the data changes.
With XML, data can be stored in separate XML files. This way you can concentrate on using HTML/CS... | <urn:uuid:9ca95ccd-f377-4e0f-a3dc-d443487735c9> | 3.421875 | 406 | Knowledge Article | Software Dev. | 46.780227 |
I have just returned from an absolutely marvelous visit to the Cayman Islands where I was participating in the Nassau grouper spawning project, called Grouper Moon, which is run jointly by the Cayman Islands Government and REEF (http://www.reef.org/programs/grouper_moon). This species of grouper gather together near th... | <urn:uuid:424e0dad-b7de-4ec2-b233-4a58cd8b0550> | 2.8125 | 383 | Personal Blog | Science & Tech. | 30.048915 |
December 1, 2010
Having already found more than 500 planets circling distant stars, scientists are getting better at understanding what they’re made of. A group led by Jacob Bean at the Harvard-Smithsonian Center for Astrophysics reports in this week’s Nature that they’ve analyzed the atmosphere of a planet only slight... | <urn:uuid:2d11218c-e55f-46e1-bca4-84ac1f68b675> | 3.421875 | 317 | Personal Blog | Science & Tech. | 52.562919 |
Minnesota Flash Floods: 1970-2012
This is a continuation of the book Sixteen Year Study on Minnesota Flash Floods. This document was published in January, 1988 by the Minnesota Department of Natural Resources Division of Waters State Climatology Office and the University of Minnesota Soil Science Department. That study... | <urn:uuid:0d06341f-1617-4cd0-a716-77cdcebd3f4b> | 3.265625 | 215 | Knowledge Article | Science & Tech. | 46.631233 |
Moons of the Solar Systemby Mark Hughes
There are more than 140 known moons throughout our solar system. Most are barren rock, while some have atmospheres, volcanoes, and maybe even oceans of liquid water or methane. Follow this slideshow to learn more about the moons of our solar system.
1 of 10
The moon around Earth ... | <urn:uuid:79a7b89a-e11f-4786-90ee-8e31f65c9c73> | 3.671875 | 198 | Listicle | Science & Tech. | 65.290997 |
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void GB.HashTable.Add ( GB_HASHTABLE hash , const char *key , long len , void *data )
Inserts a data into the hash table.
- hash points at the hash table.
- key is the key associated with the data.
- len is the length of the key.
- data is the data pointer.
T... | <urn:uuid:4d0d868b-cbd7-41e8-9aae-28e1e257f87f> | 2.765625 | 127 | Documentation | Software Dev. | 67.217282 |
Sunday, October 4, 2009
Do Big Earthquakes Cause Tremors Elsewhere?
With the spate of large earthquakes worldwide, some people have asked if large earthquakes can set off smaller earthquakes elsewhere. In short, the answer is yes, but the big earthquakes don't make other earthquakes; they may help trigger earthquakes i... | <urn:uuid:8525bc4f-bbe1-46ef-a776-72cbb5acd77a> | 3.5625 | 318 | Personal Blog | Science & Tech. | 60.3525 |
Why = = (and not just =)
mailund at birc.dk
Wed Oct 22 18:12:22 CEST 2003
On Mon, 20 Oct 2003 00:59:30 +0200, Carlo v. Dango wrote:
>> expression syntax to boot. The original language in the Algol family,
>> Algol 60, used ":=" as the assignment operator as I recall, a tradition
>> followed by Pascal.
>> Frankly, I'd r... | <urn:uuid:8fb31c72-62c8-4f99-8287-e0d0110e6ecc> | 2.953125 | 322 | Comment Section | Software Dev. | 57.81057 |
A member of RSC staff (and Chemistry World fan) recently suggested to me that it’s been 100 years since the idea of solar fuels was born. His evidence? A paper by Italian chemist Giacomo Luigi Ciamician published in Science on 27 September 1912. In it, Ciamician proposes how we might harness the enormous power of the S... | <urn:uuid:2576cc7b-9526-4966-aa0c-5bc18256413c> | 3.65625 | 582 | Personal Blog | Science & Tech. | 39.800953 |
A new supercomputer simulation shows the collision of two neutron stars can naturally produce the magnetic structures thought to power the high-speed particle jets associated with short gamma-ray bursts (GRBs).
A European team working on the LISA Pathfinder mission has completed an extensive series of ground tests on t... | <urn:uuid:a0297073-1899-4679-9603-03c253fbee76> | 2.984375 | 333 | Content Listing | Science & Tech. | 41.73029 |
Worksheet: When Dragons Eat the Sun
1. What city and state did you select?
2. Why are all the things in the sky moving together?
3. What is happening to all the things in the East sky?
4. What is happening to all the things in the West sky? Why?
5. In real life, why can't you see stars and planets during the daytime?
6... | <urn:uuid:0103d2f6-640c-4076-ba97-bc9ad4822fe4> | 3.171875 | 501 | Tutorial | Science & Tech. | 88.710968 |
Comment: 10:50 - 12:11 (01:21)
Source: Annenberg/CPB Resources - Earth Revealed - 11. Evolution Through Time
Keywords: "Dee Trent", life, atmosphere, oxygen, photosynthesis, stromatolite, algae, ozone, "carbon dioxide", "solar radiation", Precambrian, Paleozoic, limestone, ocean, horse, camel, humans, sycamore, "carbon... | <urn:uuid:757ca62f-f9c1-410a-8422-13d358e7fbbb> | 3.75 | 342 | Knowledge Article | Science & Tech. | 20.132222 |
There are more than 200 thousand earthquakes on the map, with data from 1898 to 2003. The Pacific "Ring of Fire" is visible near the center of the image, as is the Mid-Atlantic Ridge on the right.
Most quakes occur on fault lines, but there are instances of quakes happening away from fault lines.
The yellow colors on t... | <urn:uuid:9335cf76-c0ea-46de-be2e-8b1360adab06> | 3 | 137 | Knowledge Article | Science & Tech. | 65.195786 |
Science Fair Project Encyclopedia
Mohs scale of mineral hardness
Mohs' scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer. It was created by the German mineralogist Friedrich Mohs and is one of several definitions of hardness i... | <urn:uuid:f94444cf-35fe-4d61-988a-09b66c771d8d> | 3.859375 | 314 | Knowledge Article | Science & Tech. | 34.851777 |
HomePython Page 3 - Windows Programming in Python: Creating COM Servers
Annotating the Class with Attributes - Python
In an earlier article I discussed accessing COM components from within Python programs. However, I left a question dangling, namely, can COM servers be created in Python, and can they be accessed by app... | <urn:uuid:5e661e71-4578-4644-814f-23cd5862fa9f> | 2.71875 | 404 | Documentation | Software Dev. | 52.150324 |
There are very few ways of conducting experiments without the influence of Earth's gravity. One of these platforms became available on 25 November 2012, when a rocket was launched from the Swedish Esrange Space Center in Kiruna. The high-altitude sounding rocket MAPHEUS-3 (Materialphysikalische Experimente unter Schwer... | <urn:uuid:4bbbd621-61fd-4769-81ee-2c17997a312d> | 3.328125 | 836 | Knowledge Article | Science & Tech. | 30.072752 |
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Global Distribution and Circulation of Water
Ground water is a part of the hydrosphere (Nace, 1960), which includes all of the water of the oceans, rivers, lakes, lower atmosphere, and subterranean en... | <urn:uuid:2e1c2f6b-34c1-4f95-807c-a06657815dae> | 3.765625 | 353 | Knowledge Article | Science & Tech. | 46.517308 |
CHARLES DARWIN's theory of evolution has been the source of much controversy since its publication in 1859, most recently involving the intelligent design (ID) lobby in the US. Now the theory is fuelling another debate, although for once the battle lines have nothing to do with religion.
Instead of pitting God against ... | <urn:uuid:d25ba019-b1f3-44fa-8ab6-62e44463d73f> | 2.96875 | 210 | Truncated | Science & Tech. | 37.871013 |
Inspiration often comes from nature, and Anthony Reale took his from the basking shark, the second largest fish in the sea (after the whale shark). The basking shark is a krill raker, swimming through the sea with its huge mouth open and filtering the tiny organisms from the water. Reale looked at the shark's mouth and... | <urn:uuid:707f9523-24d8-4631-bd2d-2b031858759a> | 2.734375 | 160 | Listicle | Science & Tech. | 45.427727 |
This section tells you how to create a custom formatter for a logger handler. Java provides two types formatter SimpleFormatter and XMLFormatter. But, the java logging package allows for creating a custom formatter through the logger handler. Here you will see custom formatter that means formatter is created by users o... | <urn:uuid:1da57645-6ea6-4a7b-b626-627144fd5edd> | 2.71875 | 238 | Documentation | Software Dev. | 43.866875 |