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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Just been two smaller ones off cali coast I believe, a 5 and a 6.
The depth where the earthquake begins to rupture. This depth may be relative to mean sea-level or the average elevation of the seismic stations which provided arrival-time data for the earthquake location. The choice of reference depth is dependent on th... | <urn:uuid:aa478ab7-62af-4638-9ef6-c35c5ad07d20> | 2.859375 | 165 | Comment Section | Science & Tech. | 42.432978 |
ENDANGERED SPECIES ACT PROFILE
PROTECTION STATUS: Not listed
RANGE: McCleary Canyon and Sawmill Canyon in the Santa Rita Mountains; a single population in the Dragoon Mountains
THREATS: Mining, livestock grazing, recreation, drought and global climate change
POPULATION TREND: Only four populations of this orchid were e... | <urn:uuid:9dacac29-b851-44e2-8ec6-4c08ea591123> | 2.75 | 114 | Structured Data | Science & Tech. | 24.767749 |
Chandra Discovers Light Echo from the Milky Way's Black Hole
This set of Chandra images shows evidence for a light echo generated by the Milky Way's supermassive black hole, a.k.a. Sagittarius A* (pronounced "A-star"). Astronomers believe a mass equivalent to the planet Mercury was devoured by the black hole about 50 y... | <urn:uuid:1ba901e4-915c-44d4-bc6a-b5b0fbe127af> | 3.828125 | 435 | Knowledge Article | Science & Tech. | 45.645045 |
Unbeknownst to the Russians, their drill had mingled with the uppermost reaches of one of the largest freshwater lakes in the world; a pristine pocket of liquid whose ecosystem was separated from the rest of the Earth millions of years ago. As for what sort of organisms might lurk in that exotic environment today, no o... | <urn:uuid:187ddee5-07af-4003-8910-6d407079f00c> | 3.90625 | 1,050 | Nonfiction Writing | Science & Tech. | 26.434348 |
A gas cloud weighing a million times the mass of the Sun is hurtling towards the Milky Way galaxy and is set to trigger stellar fireworks after it collides in 20 to 40 million years. A ring of stars in the Sun's neighbourhood may be the signature of a previous cloud's impact.
The cloud is made mostly of hydrogen gas an... | <urn:uuid:cec170b0-14f6-4a9c-828b-f60857d3d3cc> | 3.609375 | 2,354 | Comment Section | Science & Tech. | 59.328754 |
Ornate Chorus Frog
Scientific Name: Pseudacris ornata
Description: A stout species and the largest chorus frog species in the southeast, reaching a maximum length of 1.6 in. This species displays a variety of background colors including gray, brown, reddish-brown, and even bright green. All individuals exhibit bold dar... | <urn:uuid:9db10ac0-7c76-4f35-8400-69febc94a417> | 3.265625 | 781 | Knowledge Article | Science & Tech. | 51.719682 |
|Feb4-13, 10:58 AM||#1|
1. The problem statement, all variables and given/known data
You have two identical tiny conducting spheres: sphere A carries positive charge qA, and sphere B carries negative charge qB. First the spheres are placed distance d = 0.404 m apart, and they attract each other with a force F1 = 0.748 ... | <urn:uuid:9d6826f1-e07f-4952-97b1-8de43c9a3911> | 3.5625 | 369 | Comment Section | Science & Tech. | 67.720588 |
GET and POST
When defining the method a web browser should use to send variables to the page specified by your action, you either use GET or POST. Both send variables across to a page, but they do so in different ways.
GET sends its variables in the URL of your visitors' web browsers, which makes it easy to see what wa... | <urn:uuid:7c1cee9b-b4df-4a34-abf6-03aac99e4737> | 3.125 | 394 | Tutorial | Software Dev. | 51.274032 |
Farnsworth: These are the dark matter engine I invented. They allow my starship to travel between galaxies in mere hours.
Cubert: That's impossible. You can't go faster than the speed of light.
Farnsworth: Of course not. That's why scientists increased the speed of light in 2208.
--Futurama, "A Clone of My Own"
We may ... | <urn:uuid:3affdeae-ecde-4920-a643-ee58f53241a3> | 3.625 | 1,254 | Comment Section | Science & Tech. | 51.215729 |
Porites is a genus of stony coral; they are SPS (Small Polyp Stony) corals. They are characterised by a finger-like morphology. Members of this genus have widely spaced calices, a well-developed wall reticulum and are bilaterally symmetrical. Porites, particularly Porites lutea, often form microatolls.Corals of the gen... | <urn:uuid:4e29f72b-ca10-4eef-a34a-1914900bdbd0> | 2.8125 | 434 | Knowledge Article | Science & Tech. | 55.171884 |
Ionizing & Non-Ionizing Radiation
Ionizing & Non-Ionizing Radiation
Radiation having a wide range of energies form the electromagnetic spectrum, which is illustrated below. The spectrum has two major divisions:
Radiation that has enough energy to move atoms in a molecule around or cause them to vibrate, but not enough ... | <urn:uuid:9c49f8b8-e4a2-4085-916b-5acbbad16bb2> | 3.953125 | 679 | Knowledge Article | Science & Tech. | 31.781358 |
According to the third law of motion, you van't have an mass move in a particular direction unless there is a proportional opposite mass/acceleration ratio in the opposite direction.
No-one has been able to provide a convincing argument otherwise, but the best one to date is Shawyer's EM Drive. He claims some fancy rel... | <urn:uuid:27f23cc4-268f-4370-ba43-e29cbe9f1324> | 3.203125 | 282 | Q&A Forum | Science & Tech. | 42.922355 |
Neutrons and atoms
Neutrons are found in the nuclei of all atoms that are heavier than hydrogen. The chemical behavior of an element is determined by the electronic structure bound to the nucleus, and it is the number of protons in the nucleus that determine the nuclear charge which is balanced, for the atom, by the nu... | <urn:uuid:19445782-cb35-40b3-b720-f5eb08f8a48a> | 4.625 | 499 | Knowledge Article | Science & Tech. | 39.482674 |
Juno (space probe)
Juno (also Jupiter polar orbiters) is a planned space probe of NASA, which is to study the giant planet Jupiter from a polar orbit at least one year long. It is after new Horizons the second space probe of the new Frontiers of program of NASA and may thus at the most 700 million US Dollar cost. The p... | <urn:uuid:ecfb5889-e5a4-42f5-ae58-085a769a5aa4> | 3.46875 | 802 | Knowledge Article | Science & Tech. | 38.016987 |
Asian Elephants: Threats and Solutions
The Asian elephant once roamed from the Tigris and Euphrates rivers in western Asia as far east as China's Yangtze River. No longer. Now a highly endangered species, it has been eliminated from western Asia completely, from substantial parts of the Indian subcontinent and Southeas... | <urn:uuid:060f83b7-2007-4bc5-8124-965c7d6ad571> | 3.625 | 2,271 | Knowledge Article | Science & Tech. | 35.595211 |
Q: What's wrong with casting malloc's return value?
A: Suppose that you call malloc but forget to #include <stdlib.h>. The compiler is likely to assume that malloc is a function returning int, which is of course incorrect, and will lead to trouble. Now, if your call to malloc is of the form
char *p = malloc(10);the com... | <urn:uuid:8490e35c-2575-4450-a221-35c7de4da8b2> | 3 | 325 | Q&A Forum | Software Dev. | 65.112251 |
An Aerial-Hawking Bat Uses Stealth Echolocation to Counter Moth Hearing
An Aerial-Hawking Bat Uses Stealth Echolocation to Counter Moth HearingAn Aerial-Hawking Bat Uses Stealth Echolocation to Counter Moth Hearing
Current Biology, Volume 20, Issue 17,
Publication Date 19 August 2010
Copyright © 2010 Elsevier Ltd All r... | <urn:uuid:210b2a23-c05e-42a6-b5cc-a310f0a6626b> | 3.09375 | 489 | Academic Writing | Science & Tech. | 25.557057 |
What are clouds and why does it rain?
Key Stage 3, Geography, QCA Scheme of work
Unit 10.3 Weather patterns over Europe (Year 8)
At Key Stage 2 students learnt the basic water cycle, this is adding to and building upon this work.
By the end of the lesson:
- All students will know that water moves within the hydrologica... | <urn:uuid:d7fa2e5d-707c-4e9a-b692-fa4d45b78bfe> | 3.765625 | 277 | Tutorial | Science & Tech. | 51.453132 |
Springs and Cedar Trees
Country: United States
Date: July 2008
We recently discovered some natural springs on our land
that we were told by some "old timers" were there. We discovered a
small amounts of water forming at the head of a canyon at some small
holes in the side of the cliff. Rumor is that these springs once ... | <urn:uuid:3f7b466a-aad7-4673-8b52-85afe0e2d6da> | 3.203125 | 328 | Q&A Forum | Science & Tech. | 54.67186 |
Night-time View of Aurora
January 15, 2013
Overnight on October 4-5, 2012, a mass of energetic particles from the atmosphere of the Sun were flung out into space, a phenomenon known as a coronal mass ejection. Three days later, the storm from the Sun stirred up the magnetic field around Earth and produced gorgeous disp... | <urn:uuid:bfa6428e-9783-4ba9-86e9-da5fc0641905> | 4 | 360 | Truncated | Science & Tech. | 26.815466 |
In this section, you will learn how to use 'Pointer' function in C.
C provides a special feature of pointer to a function. As you know that every function defined in C language have a base address attached to it. This base address acts as an entering point into that function. This address can be stored in a pointer kno... | <urn:uuid:47f1ebb5-69cc-41ec-a4f9-d44f54a32075> | 4.28125 | 253 | Tutorial | Software Dev. | 59.741225 |
versión On-line ISSN 0717-6643
CRISCI, Jorge Víctor. Signs of the times: biodiversity, systematics and education. Gayana Bot. [online]. 2006, vol.63, n.1, pp. 106-114. ISSN 0717-6643. doi: 10.4067/S0717-66432006000100006.
Biodiversity is the variety and variability of living things and of the ecosystem that they consti... | <urn:uuid:3d625fe8-cddd-49e2-8493-6d052236b187> | 2.921875 | 227 | Academic Writing | Science & Tech. | 55.340606 |
A fascinating phenomenon with a forbidding name (parametric down conversion) occurs in certain crystals. A single photon enters, but two emerge. There are myriad pair combinations; but in each case, the sum of the total energy and momentum of the two output photons exactly equals those of the single input photon.
Param... | <urn:uuid:112d60db-3558-403b-96ff-5056142e0593> | 2.984375 | 118 | Truncated | Science & Tech. | 30.4845 |
Functional Prog: ML
Functions in ML
A function is a computation that maps an input domain to
an ouput range
In math, the function of a line of slope 2 and y-intercept 3 is f(x)
= 2*x + 3
x is an identifier which takes on values in the domain of the
function - we call x a parameter of the function f
For a given value of... | <urn:uuid:788681b8-8b18-4726-bd1e-691bb5f34ad2> | 4 | 1,465 | Documentation | Software Dev. | 54.168404 |
Are Hurricanes Becoming Stronger and More Frequent?
Hurricanes can be the deadliest, strongest, and costliest storms in the world and they have been more severe than usual in recent years, causing an amazing amount of damage to coastal towns and cities. In 2004, a record number of hurricanes affected Florida and typhoo... | <urn:uuid:415b4782-00bb-48ea-bb79-1d1ca10b127d> | 3.421875 | 635 | Knowledge Article | Science & Tech. | 50.030415 |
Basic Molecular Biology
The Central Dogma
Alright, we’ve described the basic players in molecular biology: DNA, RNA, and proteins. What they do is this:
Here’s what’s going on: You have the Genome which is one or more really big double-stranded DNA molecule within every cell. Every cell has at least one genomic DNA. Hu... | <urn:uuid:1319bb11-c666-4330-a6f4-189302fe2754> | 3.84375 | 2,367 | Tutorial | Science & Tech. | 39.92728 |
When people travel they remember their trip in different ways. Most of us have a camera, some make notes in a journal, while others make entries through social networking venues. If you are a botanical researcher you go one step further and mark your voyage of discovery with pressed plants. Images of the landscapes, co... | <urn:uuid:fa2655e1-1636-4df6-a552-011eb714c026> | 3.96875 | 859 | Personal Blog | Science & Tech. | 47.326326 |
Instead of a small-scale field test, Cao and Caldeira decided to model iron fertilization using the ocean GCM from Lawrence Livermore National Laboratory. To account for uncertainties, they chose to calculate an upper bound on iron fertilization rather than a most likely scenario. That is, they maxed out phytoplankton ... | <urn:uuid:222a326f-3b16-412b-9f5f-db6dee5312a9> | 3.296875 | 553 | Personal Blog | Science & Tech. | 33.206208 |
Date of this Version
Of 14 species of freshwater fishes held in cages in one or more of 13 alkaline lakes and ponds in Nebraska, few species survived more than a month where carbonate alkalinity, mostly as compounds of Na2C03 and KC03, was above 300 mg/liter. Of the 14 species tested, Sacramento perch (Archoplites inte... | <urn:uuid:5e152803-2f5b-4893-8715-dafb7a9e000d> | 2.765625 | 197 | Academic Writing | Science & Tech. | 26.305523 |
where = last term of the series = .
Let be distinct constants, and be a polynomial of degree less than . Then
and is the -th derivative of (§1.4(iii)).
If are positive integers and , then there exist polynomials , , such that
To find the polynomials , , multiply both sides by the denominator of the left-hand side and e... | <urn:uuid:fecc39ab-951f-4a7d-a130-c1645559a059> | 2.921875 | 164 | Q&A Forum | Science & Tech. | 57.416071 |
Being struck by lightning is a dangerous and scary experience and can even be fatal. Sometimes, the electrical discharge can leave a tattoo-like marking or scar known as a Lichtenberg figure. The patterns created are known to be examples of fractals.
Lichtenberg figures are branching electric discharges that sometimes ... | <urn:uuid:ec7574c9-e37a-4eff-b876-2934191c682f> | 2.984375 | 127 | Personal Blog | Science & Tech. | 28.332333 |
How to Fight Global Warming
From Larry West, former About.com Guide
8 of 10
Plant a Tree
Every tree you plant pays dividends for years to come.
If you have the means to plant a tree, start digging. During photosynthesis, trees and other plants absorb carbon dioxide and give off oxygen. A single tree will absorb approxi... | <urn:uuid:01558f76-47cb-4d2d-a9b1-9fa0472bb504> | 3.25 | 131 | Tutorial | Science & Tech. | 42.081667 |
February 10, 2006
No evidence that methane releases triggered global warming at end of last ice age
Methane escaping from the sea floor to the atmosphere has been a popular suspect for causing rapid climate changes during and at the end of the last ice age. But new data derived from a Greenland ice core have delivered ... | <urn:uuid:6817f7e9-ac93-4a5c-9dc3-2fe0741b482c> | 3.703125 | 290 | Personal Blog | Science & Tech. | 28.196394 |
Quasar lensing helps to solves astrophysical puzzles in various ways, but one of its most beautiful applications is probably the determination of the Hubble parameter H0.
3.1. The Time-delay Method
In 1964, the Norwegian astronomer Sjur Refsdal proposed an original method (Refsdal 1964) to use gravitational lensing as ... | <urn:uuid:23df9dcc-3da4-4f5a-89f4-eaf115b95e1b> | 4.0625 | 688 | Academic Writing | Science & Tech. | 43.650682 |
A fascinating article in Livescience reveals the answer to a century-old zoological mystery: what do y-larvae grow up to become? Discovered in 1899, y-larvae are clearly young crustaceans but their adult stage could not be determined. While this in itself was perplexing, the newly discovered answer is even more startli... | <urn:uuid:77915bf1-cf74-4557-9ca9-96be085b104b> | 3.84375 | 258 | Personal Blog | Science & Tech. | 34.7625 |
Part of twisted.spread.jelly View Source View In Hierarchy
|Method||prepare||(internal) Create a list for persisting an object to. This will allow backreferences to be made internal to the object. (circular references).|
|Method||preserve||(internal) Mark an object's persistent list for later referral.|
|Method||jelly_... | <urn:uuid:cfcb2509-4548-41ea-801f-3853d14253d0> | 2.890625 | 546 | Documentation | Software Dev. | 46.997903 |
Learn more physics!
what is the stucture of a photon?
- ali (age moeeni)
The photon has no known structure. Maybe at some extremely small distance scale there's some sort of string structure, but that's way past what anybody can measure or even predict theoretically.
What the photon does have is properties:
Boson stati... | <urn:uuid:e460cd6e-45a1-47eb-8137-e96c8f536f73> | 2.75 | 115 | Q&A Forum | Science & Tech. | 44.821389 |
Science subject and location tags
Articles, documents and multimedia from ABC Science
Monday, 17 October 2011
Climate change is reducing the size of many animal and plant species, according to a new study.
Monday, 26 September 2011
A new study has found circadian rhythms control volatile gas emissions from plants, shed... | <urn:uuid:b3055132-023d-4cb1-bdaa-1917fcda8403> | 2.734375 | 513 | Content Listing | Science & Tech. | 33.547038 |
Science subject and location tags
Articles, documents and multimedia from ABC Science
Wednesday, 22 May 2013
The Earth's ever-shifting geology is affecting the diversity of coral reefs across the Indian and Pacific oceans.
Friday, 19 April 2013
Antarctica's abrupt deep freeze around 34 million years ago caused a plankt... | <urn:uuid:43e54f0c-1fa4-4fc0-8a43-f80bcf98ecfb> | 2.71875 | 515 | Content Listing | Science & Tech. | 37.235805 |
What Are Stingrays?
What do stingrays look like? How do they behave? What do you need to know about Stingrays?
What do they look like?
Stingrays are flat creatures that to many observers may not even appear to be alive. They typically look like doormats. They are usually fairly large (typically, they reach about three-... | <urn:uuid:c6b170f6-317c-441c-936f-abcc81c1939a> | 3.609375 | 309 | Knowledge Article | Science & Tech. | 59.950136 |
Can large wind farms tweak weather downwind?
(Page 2 of 2)
The short take: After a variety of calculations, they find that large assemblages of 2.5 megawatt land-based turbines in the right regions would meet more than 40 times the world's current electricity needs. And that's with turbines running at no more than 20 p... | <urn:uuid:d0ee8b5e-86a8-4de5-b87e-39d87593c9f6> | 3.203125 | 660 | Truncated | Science & Tech. | 44.778996 |
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Learn HTML 5 - HTML5 Tutorial
Hypertext Markup Language HTML 5 uses the combined technologies of HTML 4.01, DOC Level 2 HTML, and XHTML to generate web pages. The new language is designed to reduce dependency on proprietary RIA technologies for the generation of animated pictures s... | <urn:uuid:4f33b8fe-2eea-4e28-99c4-d1ad666470b4> | 3.640625 | 582 | Tutorial | Software Dev. | 51.352681 |
A linked list is a dynamic data structure used to hold a linearly arranged (typically unordered) collection of data. The simplest variation will be just a "head" pointer referencing the first node in the list. Nodes are declared to contain a data portion and a "next" pointer to the succeeding node on the list. If the n... | <urn:uuid:8790962d-c4b0-4f47-a219-09ec22103bc0> | 3.359375 | 571 | Personal Blog | Software Dev. | 58.966272 |
The yellowtail damselfish (scientific name: Microspathodon chrysurus) is a member of the damselfish family (Family Pomacentridae) that lives on coral reefs in the Western Atlantic Ocean and the Caribbean Sea.
Yellowtail damselfish. Source: Florent Charpin/www.reefguide.org
Juvenile yellowtail damselfish. Source: Kathy ... | <urn:uuid:0c199067-d484-441a-99c8-d0a419597df9> | 4.125 | 645 | Knowledge Article | Science & Tech. | 37.460331 |
Homogeneous and stable magnetic nanofluids containing γ-Fe2O3 nanoparticles were prepared using a two-step method, and their thermal transport properties were investigated. Thermal conductivities of the nanofluids were measured to be higher than that of base fluid, and the enhanced values increase with the volume fract... | <urn:uuid:d493a4ca-59e9-4947-8764-d1ce6f6cc27e> | 2.8125 | 4,214 | Academic Writing | Science & Tech. | 55.232792 |
|Jan17-09, 12:40 PM||#1|
Fluid Dynamics: Using Bernoulli's equation and Volume Flow Rate
1. The problem statement, all variables and given/known data
Water flowing out of a 15.0mm -diameter faucet fills a 1.50 L bottle in 5.00s. At what distance below the faucet has the water stream narrowed to 10 mm in diameter?
2. Re... | <urn:uuid:c2761adb-7a87-4069-9280-e77247fae99b> | 2.8125 | 509 | Comment Section | Science & Tech. | 93.651724 |
by Shauna, 10th Grade, Coastal Studies for Girls
Recently, the students of Coastal Studies for Girls, our marine science teacher, and one of our resident assistants visited the Bowdoin College Marine Laboratory
. Upon walking through the doors of the little building hidden in the woods, we were greeted with multiple to... | <urn:uuid:a2a43947-67b5-499d-8734-23c8083c3dfc> | 3.078125 | 546 | Personal Blog | Science & Tech. | 51.28826 |
MATERIAL METAMORPHOSIS: When heated, biodegradable shape-memory polymer transforms from a temporary shape (top) to its parent shape (bottom) within 20 seconds. Image: © 2001 National Academy of Sciences, U.S.A.
Special plastic materials able to change shape in response to temperature may soon find applications in a var... | <urn:uuid:7cebaafc-f543-4e9f-a427-1545185c86fa> | 3.734375 | 289 | Knowledge Article | Science & Tech. | 29.569328 |
Modern Day Heroes: Conservationists can preserve diversity of life on Earth by applying up-to-date scientific knowledge to help solve environmental problems. Here’s how: they work to protect ecosystems, plants and animals, and they promote efficient use of renewable resources to reduce pollution. There are many differe... | <urn:uuid:c96c2826-e16b-49ad-b70f-9ff18085bba9> | 4.0625 | 284 | Knowledge Article | Science & Tech. | 23.247752 |
Sea level rise. Desertification. Ocean acidification. Climategate. Permafrost. Greenland ice sheet. Hockey stick. The language of global climate change can be overwhelming. Every year, as we learn more about the ways that human activity fundamentally alter global processes, the subject becomes even broader and more com... | <urn:uuid:860247b5-974a-4bfa-af4c-97f9496a55f9> | 2.765625 | 120 | Truncated | Science & Tech. | 22.768795 |
| Olivine, more commonly known as peridot, is a beautiful green mineral. Most of the time olivine is used by jewelers. Occasionally it is ground into a dust and is used to cover the inside of iron molds to keep the liquid metal hot. It is also the birth stone for the month of August. Olivine is a silicate meaning it is... | <urn:uuid:8f5fbcfc-eef9-4ba4-a5a5-3733ea2ef66c> | 3.359375 | 591 | Knowledge Article | Science & Tech. | 62.96875 |
Paper chromatography is one method for testing the purity
of compounds and identifying substances. Paper chromatography
is a useful technique because it is relatively quick and requires
small quantities of material.
A paper chromatography experiment.
Separations in paper chromatography involve the same principles as th... | <urn:uuid:ed0afbf9-3eed-48b5-b603-275c67c5b266> | 3.65625 | 987 | Tutorial | Science & Tech. | 50.804345 |
This picture illustrates the concepts "atomic mass" and "atomic number". The carbon atom (14C) nucleus on the top has 6 protons plus 8 neutrons, giving it an atomic number of 6 (the number of protons) and an atomic mass (protons plus neutrons) of 14. Tritium (3H), an isotope of hydrogen, is shown on the bottom. It has ... | <urn:uuid:0a5633bf-40bd-49a8-aa4f-de15692d5c79> | 3.1875 | 122 | Truncated | Science & Tech. | 63.993727 |
Coming out of the Dark Ages, man believed the Earth was flat, and that the heavens revolved around the Earth. Evidence that contradicted these assumptions was ignored until the weight of evidence became so heavy that the comfortable assumption was eroded. How could such a theory as the flat Earth even evolve? To man to... | <urn:uuid:1a745ceb-8a31-4fd3-80a9-ad33c1780b4a> | 3.203125 | 1,110 | Personal Blog | Science & Tech. | 51.756375 |
Science Fair Project Encyclopedia
- For other uses of this word, see Quartz (disambiguation).
|Chemical formula (or Composition)||Silica (silicon dioxide, SiO2)|
|Color||Clear (if no impurities); also see Varieties|
|Crystal habit||6-sided prism ending in 6-sided pyramid (typical)|
|Mohs Scale hardness||7 - lower in im... | <urn:uuid:6749b975-2a64-461a-8ab2-90d7670f400e> | 3.203125 | 1,173 | Knowledge Article | Science & Tech. | 32.046711 |
Mike Breen and Annette Emerson
Public Awareness Officers
paoffice at ams.org
"We are in the midst of math all the time."
This from Dr. Kathy Mann Koepke of the National Institutes of Health. She's quoted by Lauran Neergaard, an Associated Press medical writer, in a March 26, 2013 AP release about the importance of very... | <urn:uuid:0f086491-e34f-4008-81a0-6d1f5ad1fe96> | 3.171875 | 1,904 | Content Listing | Science & Tech. | 47.177534 |
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
2004 July 18
Explanation: Andromeda is the nearest major galaxy to our own Milky Way Galaxy. Our Galaxy is thought to look much like Andromeda. Toge... | <urn:uuid:1faeaa81-8409-4ac8-9e19-6a32c4ec6310> | 3.75 | 249 | Knowledge Article | Science & Tech. | 49.251745 |
The Delegation Pattern is a technique where an object's behavior (public methods) is implemented by delegating responsibility to one or more associated objects.
Groovy allows the traditional style of applying the delegation pattern, e.g. see Replace Inheritance with Delegation.
Implement Delegation Pattern using Expand... | <urn:uuid:88b373fb-523a-4ed9-8443-f36cdde4351c> | 3.359375 | 327 | Documentation | Software Dev. | 27.526743 |
THE fgets AND fputs STATEMENTS
These are useful for reading and writing entire lines of data to/from a file. If buffer is a pointer to a character array and n is the maximum number of characters to be stored, then
fgets (buffer, n, input_file);
will read an entire line of text (max chars = n) into buffer until the newl... | <urn:uuid:38204260-6e26-406b-8a72-4d3cbee1816b> | 4.15625 | 203 | Documentation | Software Dev. | 61.639288 |
Major Section: PROGRAMMING
See binary-* for multiplication and see unary-/ for reciprocal.
/ represents division as follows:
(/ x y)represents the same term as
(* x (/ y))which is really
(binary-* x (unary-/ y)).Also note that
/represents reciprocal as follows:
(/ x)expands to
/is a Common Lisp macro. See any Common Li... | <urn:uuid:a4896f13-e3ed-41a9-9927-a856cbe52437> | 3.140625 | 99 | Documentation | Software Dev. | 39.060568 |
Inertia-dominated deltas are considered to be an uncommon dominance for deltas. They are associated with high flow velocities and large amounts of turbulence. As shown in the figure above, sediments are deposited close to the main flow of the channel as it enters the basin. In other words, the deposition of sediments i... | <urn:uuid:d6db405c-0643-462f-9937-9a8b393b0930> | 2.890625 | 102 | Knowledge Article | Science & Tech. | 28.688654 |
Sometimes, as the Earth orbits the Sun, it comes between the Sun and the
Moon. When this happens, the Earth throws a dark shadow across the Moon.
This is known as an eclipse of the Moon, or a lunar eclipse.|
Sometimes, the Moon passes between the Earth and the Sun. The Moon blocks
the light of the Sun and a shadow of t... | <urn:uuid:c307931a-06e2-47a1-9db3-302c0109946d> | 3.921875 | 374 | Knowledge Article | Science & Tech. | 65.118359 |
In analytical chemistry
Analytical chemistry is the study of the separation, identification, and quantification of the chemical components of natural and artificial materials. Qualitative analysis gives an indication of the identity of the chemical species in the sample and quantitative analysis determines the amount o... | <urn:uuid:dd08a69d-7967-434b-9d44-a49cc1c373d7> | 3.34375 | 1,986 | Knowledge Article | Science & Tech. | 31.465304 |
Free online HTML tutorial about how to code an image for your Web page with examples of image codes. The picture (image) codes are useful for gif images, jpg images, bitmap images and others.
[Web Images, Introduction to Images
[Related Links and Image Maps
Images are ignored by non-graphical
. An image "tag" is used i... | <urn:uuid:be12329f-28d8-4399-bbb2-c069749b10f6> | 2.9375 | 3,515 | Tutorial | Software Dev. | 58.684372 |
Saltcedar (Tamarix spp.) has impacted many native plant communities in the western United States and has become a significant problem on many national wildlife refuges including the Kern and Pixley National Wildlife Refuges. The Kern Refuge has a significant infestation of saltcedar with approximately thirty percent of... | <urn:uuid:5438045a-f150-4cdf-88cd-c5aa7b37c42e> | 3.46875 | 2,048 | Knowledge Article | Science & Tech. | 41.463517 |
This experiment is designed to measure the adsorption characteristics of nitrogen molecules on activated charcoal particles maintained at liquid nitrogen temperature. The basic outline and theory of this experiment can be found in Experiment 26 of Garland and Shoemaker.
This experiment also incorporates a specific web-... | <urn:uuid:4e4670c3-574c-4e5c-a9fd-e610151f3112> | 3.921875 | 1,311 | Tutorial | Science & Tech. | 40.864704 |
chem ! help!
.A balloon is filled with 14 L of gas at 302 K. What is its temperature in Kelvin when the volume expands to 20 L? Round to the nearest whole number. Don't forget the units. my teacher explained it but im still lost please help
please help Solve for h in U= mgh. Please show steps.
find the LCM of 15ef and ... | <urn:uuid:9f522be0-4f75-44fb-a57e-81d3ad7d247c> | 2.6875 | 630 | Q&A Forum | Science & Tech. | 104.247472 |
A designator is an object that denotes another object.
Where a parameter of an operator is described as a designator, the description of the operator is written in a way that assumes that the value of the parameter is the denoted object; that is, that the parameter is already of the denoted type. (The specific nature o... | <urn:uuid:c5aa95a8-0143-43d7-92f9-d3e7fd5e3073> | 3.25 | 499 | Documentation | Software Dev. | 25.128756 |
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Microbes generate electricity while clea... | <urn:uuid:e9608f1e-48b0-46f5-b1a3-b01cc004e12d> | 3.09375 | 701 | Comment Section | Science & Tech. | 21.484366 |
Mechanics: Momentum and Collisions
Momentum and Collisions: Audio Guided Solution
Cassie has just finished her session on the trampoline during PE. As she prepares to exit the trampoline, her vertical momentum is reduced by a series of three resistive impulses with the bounce mat. Just prior to this series of impulses,... | <urn:uuid:5dba4595-5b35-4c86-939a-278c1efb6135> | 3.265625 | 371 | Tutorial | Science & Tech. | 62.026667 |
QNX Developer Support
Count the bytes in a UTF-8 character
#include <utf8.h> int utf8len( const char *s, size_t n );
- A pointer to a UTF-8 character.
- The maximum number of bytes to count.
The utf8str() function counts the number of bytes in the UTF-8 character pointed to by s, to a maximum of n bytes, if n is nonzer... | <urn:uuid:5742037e-60e7-4f04-8919-7d4f4c86c27d> | 2.96875 | 382 | Documentation | Software Dev. | 68.849073 |
The Antarctic ice sheets drain from the continent interior to the ocean via fast flowing ice streams. As the ice within these streams moves, it erodes and modifies the bed over which it travels. Some of the eroded material is trapped within the ice as mineral and rock fragments and transported into the ocean as iceberg... | <urn:uuid:d14df512-d6e8-4836-8fbe-73a7626bcbda> | 3.765625 | 269 | Knowledge Article | Science & Tech. | 41.863218 |
Geothermal power is the use of geothermal heat for electricity generation.
It is often referred to as a form of renewable energy, but because the heat at any location can eventually be depleted it technically may not be strictly renewable.
For more information about the topic Geothermal power, read the full article at ... | <urn:uuid:723cff34-b103-415c-bdc2-198352851378> | 2.859375 | 96 | Knowledge Article | Science & Tech. | 20.156 |
Quantum mechanics permits the existence of unique correlations, or entanglement, between individual particles. For a pair of entangled photons, this means that performing a measurement on one photon appears to affect the state of the other. The ability of entangled particles to act in concert is preserved even when the... | <urn:uuid:ea5f7915-61e5-4540-bbe0-03180c1cc70d> | 2.9375 | 322 | Academic Writing | Science & Tech. | 21.089256 |
Online annual reports (since 1999) documenting hydrologic data for Pennsylvania gathered from USGS surface water and ground water data-collection networks and information on ordering paper copies of previous years.
Congress asked us (in the Energy Independence and Security Act of 2007) to figure out how to assess the e... | <urn:uuid:22144703-3c3e-424b-8232-b553b893e81a> | 2.859375 | 265 | Content Listing | Science & Tech. | 21.95274 |
This is a drawing of the interior of Jupiter's moon Ganymede.
Click on image for full size
How do we know what the inside of a Planet or Moon is like?
You may wonder how it is that scientists know what the inside of a planet is like.
The interior of a moon or planet can be closely determined from spacecraft navigation ... | <urn:uuid:8e017730-5049-4b8b-87b4-6038e32995d9> | 4.1875 | 658 | Knowledge Article | Science & Tech. | 58.676109 |
Honey bees (or honeybees) are a subset of bees in the genus Apis, primarily distinguished by the production and storage of honey and the construction of perennial, colonial nests out of wax. Honey bees are the only extant members of the tribe Apini, all in the genus Apis. Currently, there are only seven recognised spec... | <urn:uuid:6d7d79a0-b556-4fc7-ac27-05b348231db0> | 2.71875 | 485 | Content Listing | Science & Tech. | 46.186628 |
Introduction to Recombinant Genetics- Biology 350
Chapter Review - Phage isolation
Background on bacteriophages
Bacteriophages can serve as a source of cloned DNA.
Two types of bacteriophages are commonly used, the lambda phage and the M13 family of phages.
The lambda phage can exist as a prophage (integrated into bact... | <urn:uuid:249b26df-c0d5-429c-8b86-12d31c41a9b7> | 3.703125 | 564 | Tutorial | Science & Tech. | 32.288226 |
November 2012 Weather and Its Impacts on Missouri
Commercial Agriculture/University of Missouri Extension
Seasonable temperatures and dry weather prevailed across the Show Me State in November. Preliminary data indicates the average statewide temperature was just shy of 45°F, or less than one degree above normal for th... | <urn:uuid:42cd5e4a-d7b4-4e84-842f-d00edac2da31> | 2.78125 | 524 | Knowledge Article | Science & Tech. | 42.827952 |
Clients of the X Window System specify the visual attributes of graphical output primitives by using graphics contexts. A graphics context is a set of graphical attribute values such as foreground color, font, line style, and so forth. Like a window, a graphics context is another kind of X server resource which is crea... | <urn:uuid:3af729ea-8aed-4fd0-8df9-2dd309a85481> | 2.703125 | 349 | Documentation | Software Dev. | 38.489733 |
[March 24, 11:10 p.m.: Apologies for the blog silence and slow comment moderation. I'm camped on a beach with Pace University students making a film about efforts to balance fishing with marine conservation. ]
The seasonal rains called monsoons matter enormously to human affairs, from the Indian subcontinent to the Ame... | <urn:uuid:5693569e-8580-437f-8cbe-c39e334e7768> | 3 | 533 | Personal Blog | Science & Tech. | 29.08634 |
Odin is a Swedish satellite working in two disciplines; astrophysics and aeronomy, and it was named after god Odin. Within the field of astrophysics, Odin is used in the study of star formation. When used for aeronomical observations, it is the ozone layer depletion and effects of global warming that are explored.
Odin... | <urn:uuid:8c796f5c-7f4c-4965-9c26-05654d0b0117> | 3.65625 | 230 | Knowledge Article | Science & Tech. | 29.172543 |
Gopinathan, C P (1971) Seasonal abundance of phytoplankton in the Cochin backwater. Journal of the Marine Biological Association of India, 14 (2). pp. 568-577.
Qualitative and quantitative studies on phytoplankton of the Cochin Backwater showed that about 120 species of phytoplankters (excluding nanoplankton) commonly ... | <urn:uuid:2d0f7a62-7639-49b1-864f-cd1b915567f6> | 3.03125 | 295 | Academic Writing | Science & Tech. | 39.788235 |
Skip to Main Content
Poyang Lake, which has a high level of biomass, is the largest freshwater lake in China with an area of about 3,000km2. Its wetland ecosystem has a significant impact on China's environment change. In order to investigate the biomass information of Poyang Lake wetland plants, the characteristics of... | <urn:uuid:532996ae-ce7d-43c3-af40-fdca415a002f> | 2.890625 | 281 | Academic Writing | Science & Tech. | 45.259068 |
Ada is a modern programming language designed for large, long-lived applications – and embedded systems in particular – where reliability and efficiency are essential.
The WG9 committee, after discussions with the ARG and with members of the Ada community, has instructed the ARG to complete the Amendment to Ada 2005 so... | <urn:uuid:e87b32d9-2f6e-42e9-a8ef-01d6fdc5a9fe> | 3.125 | 388 | Content Listing | Software Dev. | 28.961935 |
Atlantic Lobsters, Homarus americanus
Taxonomy Animalia Arthropoda Malacostraca Decapoda Nephropidae Homarus americanus
Description & Behavior
Of the 30-odd types of clawed lobsters worldwide, Atlantic lobsters, Homarus americanus (H. Milne Edwards, 1837), most closely resembles Homarus gammarus, a related European spe... | <urn:uuid:471e8214-7e34-4022-a288-406004af6ab5> | 3.78125 | 1,679 | Knowledge Article | Science & Tech. | 45.034497 |
Sighting in a Rifle
Library Home || Primary || Math Fundamentals || Pre-Algebra ||
Algebra || Geometry || Discrete Math || Trig/Calc
|Geometry, difficulty level 3. Analyze the given target of four shots, and tell me how far to move the scope on my rifle so that the group of shots will be centered around the bull's-eye.... | <urn:uuid:f5aa0b3a-d40c-4d8a-8285-9fc63882e0dd> | 3.078125 | 145 | Content Listing | Science & Tech. | 43.280102 |
I'm new here and I'm soooo happy I found this forum where people can help me!
I'm in 12th grade and I'm a pre-calc student.
There are two problems that are due tomorrow before 8:30 AM.
I have wasted maybe 5 pieces of paper trying to figure out the first problem.
Here it goes, and I pray someone is here to guide me!!
Th... | <urn:uuid:7eaaf6fa-5125-4ba3-be82-6ce893885d13> | 3.234375 | 269 | Comment Section | Science & Tech. | 90.983034 |
This article for the young and old talks about the origins of our number system and the important role zero has to play in it.
Using balancing scales what is the least number of weights needed
to weigh all integer masses from 1 to 1000? Placing some of the
weights in the same pan as the object how many are needed?
This... | <urn:uuid:6936ac26-3e3e-4775-ac49-2ee8e350fbc0> | 3.53125 | 175 | Content Listing | Science & Tech. | 50.926094 |
Introduction to My Submarine Ocean Explorer
Welcome to My Submarine Ocean Explorer! Come see exciting creatures and features found in the ocean. You will see videos from NOAA Office of Ocean Exploration and Research (NOAA OER) expeditions and you can find more information about the creatures and features in text and ph... | <urn:uuid:2ccfcec4-4e80-4f65-a7ba-a89416b4e5c6> | 3.015625 | 252 | Tutorial | Science & Tech. | 38.120899 |
A home from home: Five planets that could host life
It's one of the big questions: Are we alone on this blue marble or is there life elsewhere in the cosmos? To shed some light, astronomers are searching for habitable worlds circling far-off stars.
A team has now published updated evidence for a planet that could be th... | <urn:uuid:352909c7-b0e3-46fe-8b47-07b17ff0b1a2> | 2.921875 | 1,668 | Content Listing | Science & Tech. | 51.64821 |
Common Lisp the Language, 2nd Edition
There are several variables whose values are streams used by many functions in the Lisp system. These variables and their uses are listed here. By convention, variables that are expected to hold a stream capable of input have names ending with -input, and variables that are expecte... | <urn:uuid:2c01ba96-55f9-421b-b432-d136d86bb7c7> | 3.296875 | 1,210 | Documentation | Software Dev. | 46.783656 |
The images from cameras and sensors on the latest satellite watching the sun are a dramatic reminder of the awesome power of the star that warms our planet. They show clouds of magnetized gas big enough to engulf the Earth breaking away from the outermost layer of the sun’s atmosphere. These coronal mass ejections (CME... | <urn:uuid:4fadbacb-adc4-4c8c-8ae5-abfc85eca44d> | 3.765625 | 1,048 | Truncated | Science & Tech. | 41.134194 |
Modern web pages are written in a language known as Extended Hypertext Markup Language or XHTML. Pages written only for older browsers are written in HTML or Hypertext Markup Language. The XHTML and HTML languages are almost identical but have slight syntax differences, as noted below. Both XHTML and HTML are "markup l... | <urn:uuid:cbd9aea4-b8dc-46c1-8362-9494579c4579> | 4.53125 | 1,480 | Tutorial | Software Dev. | 65.189791 |
Earth was so hot 2,000 years ago that the Romans grew grapes in Northern England.
How did the Romans grow grapes in northern England? Perhaps because it was warmer than we thought.
A study suggests the Britain of 2,000 years ago experienced a lengthy period of hotter summers than today.
German researchers used data fro... | <urn:uuid:170aa5a8-38e2-42c3-aac9-3c8a3bf11d5a> | 4.0625 | 585 | Personal Blog | Science & Tech. | 46.583079 |
MVC1 was a first generation approach that used JSP pages and the JavaBeans component architecture to implement the MVC architecture for the Web. HTTP requests are sent to a JSP page that implements Controller logic and calls out to the Model for data to update the View. This approach combines Controller and View functi... | <urn:uuid:4534d0fa-733c-446a-b714-1ea4398eea1e> | 3.296875 | 216 | Q&A Forum | Software Dev. | 43.725669 |
Researchers in Japan are trying to get a rise out of viewers with an experimental chair that makes your arm hairs stand on end.Read More
Ramesh Raskar presents femto-photography, a new type of imaging so fast it visualizes the world one trillion frames per second, so detailed it shows light itself in motion. This techn... | <urn:uuid:17b906da-b735-4752-ba80-8bf9991e9d7e> | 2.8125 | 487 | Content Listing | Science & Tech. | 44.016873 |
Type: New Feature
Resolution: Won't Fix
Affects Version/s: 2.1.M0, 2.4-M2
Fix Version/s: 2.7-M3
NetCDF (network Common Data Form) is an interface for array-oriented data access and a library that provides an implementation of the interface. The netCDF library also defines a machine-independent format for representing s... | <urn:uuid:7619d274-111f-409f-b897-1e7b3b747e1f> | 3.03125 | 388 | Comment Section | Software Dev. | 48.236429 |
From Math Images
Basic DescriptionThe method was first used to approximate π by Georges-Louis Leclerc, the Comte de Buffon, in 1777. Buffon posed the Buffon's Needle problem and offered the first experiment where he threw breadsticks over his shoulder and counted how often the crossed lines on his tiled floor.
Subseque... | <urn:uuid:7f5d809f-c07e-4309-b12d-eee50f4a7fc5> | 3.859375 | 881 | Tutorial | Science & Tech. | 45.735248 |
Loosely speaking, a number describing the ability of a transparent material such as glass, plastic, liquid or crystal, to bend (refract) light. More technically, the ratio of the velocity of light in a vacuum compared to the velocity of light in a given medium.
The refractive index of a vacuum is 1 (by definition) and ... | <urn:uuid:fe1ebd89-cabd-4766-82b1-e06b853b73a0> | 3.671875 | 219 | Knowledge Article | Science & Tech. | 53.891183 |