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Provided by Annie Reisewitz and Jessica Carilli, Scripps Institution of Oceanography, University of California, San Diego
Shared by Mexico, Belize, Guatemala, and Honduras, the Mesoamerican Reef spans over 1,000 km, making it the largest continuous reef in the Western Hemisphere. Portions of the Mesoamerican Reef are W... | <urn:uuid:8067f644-2f17-42ae-9daa-364b0438955e> | 4.15625 | 676 | Knowledge Article | Science & Tech. | 42.321208 |
I’ve been reading about Sedna for the past 45 minutes. It’s a dwarf planet that we know exists in our solar system as a trans-Neptunian object, but it sort of defies our understanding of how solar systems develop and function.
In 2076 it will reach its closest point to the sun along its 11,400 year orbit: about 76 AU (... | <urn:uuid:5772dcce-52ff-4724-a730-3705e71a8703> | 3.109375 | 542 | Personal Blog | Science & Tech. | 58.313795 |
iOS applications use Cocoa classes, and these classes use the Objective-C programming language so one must know Objective-C if he/she does wish to develop iOS apps. We all know shifting from a loss, non-strict programming language might find iOS’s syntax seem strange and difficult. Don’t worry, this strangeness and dif... | <urn:uuid:c64ea1bf-259c-4f92-92da-74a4b21c931c> | 2.984375 | 281 | Tutorial | Software Dev. | 40.418214 |
A fundamental problem studies the number of ways can be written as a sum of positive integers , that is, the number of solutions of
The number of summands is unrestricted, repetition is allowed, and the order of the summands is not taken into account. The corresponding unrestricted partition function is denoted by , an... | <urn:uuid:0199d3e4-5fb9-4c3c-9e8d-25dbcd27e015> | 3.1875 | 555 | Knowledge Article | Science & Tech. | 49.298866 |
Source code: Lib/tokenize.py
The tokenize module provides a lexical scanner for Python source code, implemented in Python. The scanner in this module returns comments as tokens as well, making it useful for implementing “pretty-printers,” including colorizers for on-screen displays.
To simplify token stream handling, a... | <urn:uuid:f5af35e9-65ee-457f-8209-576e8d39af22> | 3.15625 | 1,858 | Documentation | Software Dev. | 70.80885 |
International Code of Nomenclature of Bacteria
||This article needs additional citations for verification. (February 2010)|
The International Code of Nomenclature of Bacteria (ICNB) or Bacteriological Code (BC) governs the scientific names for bacteria, including Archaea . It denotes the rules for naming taxa of bacter... | <urn:uuid:cb73c7c7-bbfd-40bc-82e2-73ca32f30071> | 3.03125 | 382 | Knowledge Article | Science & Tech. | 24.193594 |
Multifocal plane microscopy
||This article may be too technical for most readers to understand. (August 2012)|
Multifocal plane microscopy (MUM) or Multiplane microscopy or Biplane microscopy is a form of light microscopy that allows the tracking of the 3D dynamics in live cells at high temporal and spatial resolution ... | <urn:uuid:7145a46e-ad62-4f69-b551-fc53f533e349> | 3 | 2,312 | Knowledge Article | Science & Tech. | 43.901679 |
The structure of a micro-bat community in relation to gradients of environmental variation in a tropical urban area
Hourigan, C.L., Johnson, C., and Robson, S.K.A. (2006) The structure of a micro-bat community in relation to gradients of environmental variation in a tropical urban area. Urban Ecosystems, 9 (2). pp. 67-... | <urn:uuid:1d3cc0e8-821f-4959-9805-865ca7dbcebb> | 2.78125 | 551 | Academic Writing | Science & Tech. | 33.374548 |
Transactional memory on x86 will come in two flavors:
- Hardware Lock Elision (HLE), which consists of XACQUIRE and XRELEASE instruction prefixes. These can optimistically turn lock regions into transactions. What's the advantage? Well, transactions can execute concurrently, as long as they aren't writing to the same m... | <urn:uuid:17db5c90-1445-4f12-bc7a-d127eb59f891> | 2.8125 | 733 | Personal Blog | Software Dev. | 40.610272 |
Introduction to PHP
PHP (the acronym is "recursive" and refers back to itself--it stands for PHP: Hypertext Preprocessor) is a popular server-side scripting language. The fact that it is "server-side" means that special software on the web server is used each time a page with PHP is processed. This software responds to... | <urn:uuid:5d37ef30-3312-4488-b104-55c3f19a3c07> | 3.65625 | 244 | Knowledge Article | Software Dev. | 54.326438 |
2.11. Electrostatic Energy
The effect of the electrostatic interaction on the binding energies of atomic nuclei relative to free protons and electrons is taken into account in category 6, and the electrostatic contribution to the binding energies of white dwarfs is (in principle) part of category 5. The molecular bindi... | <urn:uuid:17f13d65-f5c5-404f-abbb-bde2cdc67741> | 3.015625 | 317 | Academic Writing | Science & Tech. | 35.652115 |
for National Geographic News
Warp drives may be the stuff of science fiction, but another Star Trek staple appears to be edging toward science fact.
The energy source that enables the starship Enterprise to boldly go where no one has gone before has, according to one controversial new claim, moved much closer to realit... | <urn:uuid:6bec27af-b471-47f1-b8c6-a47ee98792ca> | 3.28125 | 393 | Content Listing | Science & Tech. | 43.43723 |
Alister Doyle / Reuters file
Experts increasingly recognize that ice melting in Antarctica could push up sea levels dramatically higher in coming decades.
By John Roach, NBC News
Melting glaciers in Antarctica and Greenland may push up global sea levels more than 3 feet by the end of this century, according to a scient... | <urn:uuid:c786f10e-24cf-4efa-bd51-5d30ab214311> | 3.53125 | 783 | Truncated | Science & Tech. | 38.787797 |
Physics First: Magnetism and Magnetic Force Units
Magnetic fields can be defined as the regions surrounding a magnet where a moving electric charge will feel a force of attraction or repulsion. Invisible magnetic field lines emerge from the North pole of a magnet and enter the South pole. Field lines can be visualized ... | <urn:uuid:506b5a04-7ccd-4857-991b-d7542507d87d> | 4.46875 | 317 | Content Listing | Science & Tech. | 27.656367 |
SCIENTISTS associated with the Intergovernmental Panel on Climate Change have predicted that by the year 2050, the sea level is likely to rise by 0.3-0.5 m. This is assuming that no effort is made to check greenhouse gas emissions, which heat up the atmosphere and cause the polar ice caps to melt. Using sophisticated c... | <urn:uuid:0edd48ad-1cbd-4ee2-9a37-1e014dbb86ab> | 3.84375 | 296 | Knowledge Article | Science & Tech. | 45.526169 |
|You are here: Home > Dive Into Python > Data-Centric Programming > Finding the path||<< >>|
Python for experienced programmers
When running Python scripts from the command line, it is sometimes useful to know where the currently running script is located on disk.
This is one of those obscure little tricks that is virt... | <urn:uuid:7e0a7105-7fff-453b-885c-3331edbb4a02> | 3.625 | 1,573 | Tutorial | Software Dev. | 66.397919 |
Engineers at the University of Ulster are the first researchers to create diamond nanorods with a diameter as thin as 2.1 nm, which is not only smaller than all the currently reported diamond 1D nanostructures (4-300 nm) but also smaller than the theoretical calculated value (2.7-9 nm) for energetically stable diamond ... | <urn:uuid:f5addd1d-bdf9-45d1-bb3c-15a07693e32c> | 2.75 | 136 | Knowledge Article | Science & Tech. | 56.229082 |
Marbled murrelets typically nest on large mossy beds in complex and biodiversity-rich forests older than 250 years — in other words, old growth. These forests provide a canopy structure for nesting and have to be within a 30 kilometre (km) range of the ocean. These mossy beds must be high up in the canopy and hidden in... | <urn:uuid:6817ccf3-e42c-420b-ab11-4e145f431a53> | 4 | 1,022 | Knowledge Article | Science & Tech. | 70.239763 |
There is probably no day greeted with greater joy and anticipation than the first day of spring -- especially after a Minnesota winter! Sometimes, the only thing that gets us through February is knowing that better days are on the way. But when, exactly, does spring get here?
TV weathermen will tell you that spring sta... | <urn:uuid:020a8ef6-4421-42c9-ae8e-652f81a4237f> | 3.34375 | 447 | Personal Blog | Science & Tech. | 66.94849 |
Mar. 16, 2012 Early snowmelt caused by climate change in the Colorado Rocky Mountains snowballs into two chains of events: a decrease in the number of flowers, which, in turn, decreases available nectar. The result is decline in a population of the Mormon Fritillary butterfly, Speyeria mormonia.
Using long-term data on... | <urn:uuid:77e2eac2-e429-46e2-b9cd-2d5d85afed93> | 3.28125 | 809 | Truncated | Science & Tech. | 32.976725 |
The difference between sleeping and being awake seems simple enough. You know someone is sleeping because his eyes are closed, he’s lying down and inactive, he doesn’t answer your questions, and he might be snoring. People who are awake, on the other hand, have open eyes, can get things done, are responsive to question... | <urn:uuid:0ab5be42-47ce-46c7-846b-6c14b0be9904> | 3.875 | 833 | Knowledge Article | Science & Tech. | 51.770045 |
> The wchar_t is an opaque data type (some says semi-opaque) that you
> shouldn't assume on its representation. You can find various
> UNIX spec and std sources saying that it is an opaque data type, for
> instance, XPG4/4.2/5 that subsumes POSIX.1, ANSI C/ISO C, SVID3 and >System V
> ABI, ... The only things that you ... | <urn:uuid:5850dd5c-bbd4-4632-916a-c1cfb7719a90> | 3.15625 | 381 | Comment Section | Software Dev. | 76.371481 |
Uit Kust Wiki
Versie door Astamoulis op 2 mrt 2009 om 23:23
This is one of the fundamental definitions for comprehending evolution.
A population is a group of individuals of one species that live in the same geographical area at the same time.
Please note that others may also have edited the contents of this article. | <urn:uuid:66596104-4bff-4923-a611-9eb038476331> | 2.6875 | 73 | Knowledge Article | Science & Tech. | 45.065789 |
I am supposed to find all the zeros of a polynomial function
If I synthetically divide a function by all the real zeros, and am left with 1, is that an x value of 1?
Nope! If I understand your question correctly, being "left with 1" means a factor of 1, not a remainder of 1 and not the expression "x−1". For example:
Ma... | <urn:uuid:33921868-ab65-4b3a-bec6-b22aa14458d5> | 3.296875 | 656 | Q&A Forum | Science & Tech. | 100.785161 |
Apache Tomcat Development
Apache Tomcat 6.0
Class Loader HOW-TO
Like many server applications, Tomcat installs a variety of class loaders
(that is, classes that implement
java.lang.ClassLoader) to allow
different portions of the container, and the web applications running on the
container, to have access to different r... | <urn:uuid:8cc7b665-a96a-44a7-9be6-4d8bf1b4a5f2> | 2.890625 | 1,932 | Documentation | Software Dev. | 42.823073 |
Haze is traditionally an atmospheric phenomenon where dust, smoke and other dry particles obscure the clarity of the sky. The World Meteorological Organization manual of codes includes a classification of horizontal obscuration into categories of fog, ice fog, steam fog, mist, haze, smoke, volcanic ash, dust, sand and ... | <urn:uuid:97302598-58d1-4842-a46e-fde436d8f61b> | 4.125 | 976 | Knowledge Article | Science & Tech. | 26.396045 |
when do two names cease to refer to the same string object?
steve at REMOVETHIScyber.com.au
Fri Mar 3 12:19:09 CET 2006
On Thu, 02 Mar 2006 20:45:10 -0500, John Salerno wrote:
> To test this out a wrote a little script as an exercise:
> for num in range(1, 10):
> x = 'c' * num
> y = 'c' * num
> if x is y:
> print 'x an... | <urn:uuid:1a23b567-4222-4e20-af50-63d7af236b52> | 2.859375 | 562 | Comment Section | Software Dev. | 81.560625 |
What is ECOLOGICAL BACKLASHES?
Definition of ecological backlash – Our online dictionary has ecological backlash information from A Dictionary of Ecology dictionary. Encyclopedia.com: English, psychology and medical dictionaries
Best Answer: From several sites: ecological backlash The unexpected and detrimental consequ... | <urn:uuid:d4df34a2-9f11-4bee-9028-f881b32433c5> | 2.96875 | 1,990 | Content Listing | Science & Tech. | 35.019001 |
A Laboratory Manual for X-Ray Powder Diffraction
Illite is essentially a group name for non-expanding, clay-sized, dioctahedral, micaceous minerals. It is structurally similar to muscovite in that its basic unit is a layer composed of two inward-pointing silica tetragonal sheets with a central octahedral sheet. However... | <urn:uuid:522a3f7e-cf52-4d7e-985d-09f9b44e0b28> | 3.65625 | 461 | Knowledge Article | Science & Tech. | 40.135809 |
The effect of phosphite on the sexual reproduction of some annual species of the jarrah (Eucalyptus marginata) forest of southwest Western Australia
Fairbanks, M.M., Hardy, G.E.St.J. and McComb, J.A. (2001) The effect of phosphite on the sexual reproduction of some annual species of the jarrah (Eucalyptus marginata) fo... | <urn:uuid:a3a145fb-e42d-4273-bcb7-03487f548ad8> | 3.015625 | 462 | Academic Writing | Science & Tech. | 47.81185 |
As the space industry continues to cut costs by using lightweight materials and alternative types of energy, it is opening up the possibility that you and I may one day have the opportunity to live in space. The idea of a colony on the moon or Mars might be made possible with new spacecraft technologies being developed... | <urn:uuid:a76c2978-3cf5-46e1-a009-270cd14b3f31> | 3.828125 | 318 | Knowledge Article | Science & Tech. | 40.307787 |
Harbor Seal Decline
INTRO: Harbor seals were once a common sight along Alaska's rocky coast. But since the 1970s, they've all but disappeared in parts of the state. Researchers at the Alaska SeaLife Center in Seward have launched a new study aimed at helping seals recover.
STORY: Harbor seals Atuun, Qilak, Susitna, and... | <urn:uuid:b9cd9305-535f-4b35-bd46-a327002eab48> | 3.0625 | 1,449 | Audio Transcript | Science & Tech. | 55.150214 |
Do other planets have weather? If so, what kind, what planets? (Natalie, Somewhere, USA)
A: Yes, other planets endure weather so harsh that Earth's worst seems balmy. All planets in our solar system, with the exception of Mercury, have an atmosphere and, therefore, weather.
"I'm not sure it's fair to describe Mercury a... | <urn:uuid:0b1b0170-c388-496d-94e0-a3a1e269ff11> | 3.359375 | 1,244 | Nonfiction Writing | Science & Tech. | 50.596414 |
Science Fair Project Encyclopedia
A graphite bomb (also known as the "Blackout Bomb") is a non-lethal weapon used to disable electrical power systems. Graphite bombs work by spreading a cloud of extremely fine carbon fibre wires over electrical components, causing a short-circuit and a disruption of the electrical supp... | <urn:uuid:6828baaf-8677-4349-ab98-2e30b2f4d483> | 3.15625 | 156 | Knowledge Article | Science & Tech. | 49.37561 |
Day 3: Blast matrices and genome
The blast matrix perl script
comparison of multiple organisms. For every organism, it calculates how
proteins are homologous to all organism in the comparison. Including 4
in a single comparison will leave 4 x 4 = 16 cells in the matrix.
The numbers that appear in each square are as fol... | <urn:uuid:359a7f37-d69e-43fd-b2fa-fdb7207d0d74> | 3.15625 | 869 | Tutorial | Science & Tech. | 53.710023 |
In the mid-1800s astronomers discovered from hundreds of sunspot sightings that, when they tabulated and graphed them, their numbers increased and decreased over time in a repeatable cycle. These extremes represent the amplitude of the cycle. We now call this the solar activity cycle or the sunspot cycle. Heinrich Schw... | <urn:uuid:acc3316e-6d25-480b-aea7-0d1ad242cd7a> | 4.25 | 1,702 | Knowledge Article | Science & Tech. | 48.267121 |
Ice Sheets Apparently Can Grow Quickly in Cold Periods
How fast can glaciers and ice sheets expand and shrink in response to rapidly changing climatic conditions? It's a question that scientists have been pondering with particular interest of late, with Greenland's Peterman Glacier calving large amounts of ice two year... | <urn:uuid:5c4ecf41-f63f-4ce8-af10-96deb5126fe0> | 4.125 | 355 | Truncated | Science & Tech. | 41.18125 |
100 Years of Achievement - 100 Years of Heros
On December 17, 1903, two brothers made history by becoming the first humans to fly in a powered aircraft. On July 20, 1969, Neil Armstrong made history by becoming the first human to step on the Moon. On June 21, 2004, civilian astronaut Mike Melvill made history by becomi... | <urn:uuid:ef030833-25b3-4cf1-bf83-2e4a0982505e> | 2.921875 | 198 | Content Listing | Science & Tech. | 58.502065 |
They are referred to as intraterrestrials, organisms that live inside the Earth. Most live beneath the bottom of the oceans. Some live in the tens of meters of mud just beneath the seafloors; others, following fractures in rock, live hundreds of meters down. By some estimates, as much as one-third of the planet's bioma... | <urn:uuid:058a9597-b4a4-454d-b230-d30170ff726d> | 4.1875 | 731 | Knowledge Article | Science & Tech. | 53.660858 |
Read off the coordinates of the point symbolized by the red circle and insert them into the respective text fields. All coordinate values are integer or half-integer.
Click the button "Check" in order to see whether your values were correct. Click the button "Next" in order to try again with another point. You may also... | <urn:uuid:5058ed67-e685-4a47-bb62-45e35fc27a4e> | 2.765625 | 104 | Tutorial | Science & Tech. | 54.192414 |
South African Journal of Science
Print version ISSN 0038-2353
JANION, Charlene et al. Springtail diversity in South Africa. S. Afr. j. sci. [online]. 2011, vol.107, n.11-12, pp. 01-07. ISSN 0038-2353.
Despite their significance in soil ecosystems and their use for investigations of soil ecosystem functioning and in bio... | <urn:uuid:8ee4354b-92b4-45e5-b12b-3f7622140d31> | 3.140625 | 368 | Academic Writing | Science & Tech. | 31.062023 |
Conservation: What's it to you?
My favorite definition of conservation is “the careful utilization of a natural resource in order to prevent depletion” (www.dictionary.com). This definition is critical to our Contract Stewardship program, which offers professionally-trained and experienced staff to assist landowners wi... | <urn:uuid:8ac88dd1-28dd-4c83-bfb8-ffc7c390243d> | 2.96875 | 254 | Truncated | Science & Tech. | 33.984615 |
Researchers have recently proven that a quality of the unseen quantum world called entanglement can happen also at the microscopic level (i.e. the size of stuff in the regular world).
Entanglement is really strange. What happens is that two particles can get mated (how that happens is a bit of a mystery), and then comm... | <urn:uuid:146c2a71-087b-4537-ab36-b3183844eb86> | 2.75 | 490 | Personal Blog | Science & Tech. | 50.929024 |
(HLL) A programming language which provides some level of abstraction above assembly language. These normally use statements consisting of English-like keywords such as "FOR", "PRINT" or "GOTO", where each statement corresponds to several machine language instructions. It is much easier to program in a high-level langu... | <urn:uuid:b4705e47-f8e6-4e87-877a-02096962f865> | 3.6875 | 166 | Knowledge Article | Software Dev. | 21.837846 |
Data Encryption Standard: Part 1
August 31, 2010
The Data Encryption Standard has been one of the most successful ciphers in history, and is still in use today, especially in its Triple DES variant. The Data Encryption Standard is officially described by FIPS 46-3, though if you are not fond of reading algorithm descri... | <urn:uuid:57768dd2-fda0-4564-bc87-d4d4ffc6094b> | 3.21875 | 235 | Tutorial | Software Dev. | 60.199141 |
This programming language may be used to instruct a computer to perform a task.
If you know BCPL, please write code for some of the tasks not implemented in BCPL.
BCPL is a typeless ancestor of C.
BCPL was first implemented at MIT by Martin Richards early in 1967. It was strongly influenced by CPL which was a general p... | <urn:uuid:06597ed8-858b-4f27-910a-f9b97b7cff66> | 3.25 | 204 | Knowledge Article | Software Dev. | 59.948077 |
Dig the well before you are thirsty.
Test-First Development Abstract
Test-first is a cornerstone of XP and should be a mainstay of all Agile methods, including Scrum and Kanban. Originally called test-first programming, larger scale development has required more than just the programming of tests first. The key to test... | <urn:uuid:f279ed04-f8c5-4c64-8f86-5e2c7f1c618c> | 2.9375 | 624 | Knowledge Article | Software Dev. | 42.198322 |
NOAA Teacher at Sea
Aboard R/V Savannah
July 7 – July 18, 2012
Mission: SEFIS Reef Fish Survey
Geographical Location: Atlantic Ocean, off the coasts of Georgia and Florida
Date: July 9, 2012
Latitude: 30 ° 54.55’ N
Longitude: 80 ° 37.36’ W
Air Temperature: 28.5°C (approx. 84°F)
Wind Speed: 6 knots
Wind Direction: from ... | <urn:uuid:f1155bc6-4291-46a5-9e79-ea9122c838d9> | 3.328125 | 910 | Personal Blog | Science & Tech. | 48.018801 |
Water: Climate Change and Water
Water Impacts of Climate Change
Climate change has already altered, and will continue to alter, the water cycle. Impacts include warmer air and water, changes in the amounts and distribution of rainfall and snowfall, more intense rainfall and storms, and sea level rise. This page provide... | <urn:uuid:becb2884-7d17-4a8a-905a-45ac504f5f3a> | 3.78125 | 1,535 | Knowledge Article | Science & Tech. | 28.165254 |
This important, and fairly easy to perform Star Count project is designed as part of an international scientific study to investigate the visual quality of the nighttime sky and to help assess the national and global extent of atmospheric light pollution. It will also help to evaluate the amount of energy wasted throug... | <urn:uuid:764336b5-3314-4e33-a6ae-490358c7688e> | 2.84375 | 100 | Knowledge Article | Science & Tech. | 21.555612 |
I'll first explain what this is.
Common dialog control is a component that allows us to access inbuilt libraries.
If you don't know what these are let me explain it to you with an example.
Open the notepad go to File and click Save As... A window will pop up with a couple
of components (command buttons, combo boxes, et... | <urn:uuid:8e8ba7c2-dac1-42db-8f40-8a366b73813c> | 3.234375 | 478 | Comment Section | Software Dev. | 68.264812 |
What is this strange ring that has been developing on the Sun during
Sunspot 1112, located in the southeast quadrant, has been the source of a
giant filament that is currently stretching 400,000 km across the surface of the
However, today, there appears to be development of a enormous circular
ring which looks to be
li... | <urn:uuid:b066382d-e405-4b61-bfe9-e4bab6b17f59> | 3.046875 | 335 | Personal Blog | Science & Tech. | 43.722298 |
system call operates in exactly the same way as
except for the differences described in this manual page.
If the pathname given in
is relative, then it is interpreted relative to the directory
referred to by the file descriptor
(rather than relative to the current working directory of
the calling process, as is done by... | <urn:uuid:175d0237-69a5-4d0a-a48f-474385fec56e> | 3.234375 | 345 | Documentation | Software Dev. | 36.058894 |
MacMahon's Coloured Cubes
What are Mac Mahon's Coloured Cubes?
MacMahon's cubes are the cubes which develop if you give the six sides
six different colours in all possible combinations.
P.A.MacMahon was an English mathematician and major. He lived from 1854
||The colours are not determined. You can choose any colour. I... | <urn:uuid:c5079a02-91ea-4ba1-b2fe-84fd4387ad38> | 3.703125 | 2,200 | Personal Blog | Science & Tech. | 68.322906 |
24 Electrons on a Sphere
red = 0.7177998 (24)
green = 0.7660127 (24)
blue = 0.7768039 (12)
Notice the 6 square regions and 8 equilateral triangles on the
surface. Also, notice that each vertex is identical, and the
edges are blue, red, red, green, green proceeding clockwise
when viewed from outside the sphere. This is ... | <urn:uuid:1bb99656-b322-4ee8-95e7-d500b70beb5e> | 3.28125 | 179 | Tutorial | Science & Tech. | 65.845146 |
Microscopes are to microbiology what telescopes are to astronomy.
The earliest microscopes were simple instruments consisting of one or more crude glass lenses similar to those used to make early spectacles. The invention of the first true microscope is credited to the Jansen family of Middleburg, Holland, around 1595.... | <urn:uuid:91d505ca-f86b-4116-a9a4-94e217892782> | 3.453125 | 172 | Knowledge Article | Science & Tech. | 32.868293 |
Fraser Darling effect
The Fraser Darling effect, named after Sir Frank Fraser Darling, who proposed it in 1938, is the simultaneous and shortened breeding season that occurs in large colonies of birds.1 This synchronized and accelerated breeding leads to a greater chance of survival for each individual offspring.2 Whil... | <urn:uuid:2e822588-369c-4bc6-a0d4-6b988d4fb13b> | 4.0625 | 414 | Knowledge Article | Science & Tech. | 45.117839 |
Big ideas, with a little twist. Our scientific visionary gives some of Man’s great theories an unscientific going-over
Thermodynamics was discovered by James Clark Maxwell House while he was trying to invent freeze dried instant coffee. Dropping ice cubes into the brew always made it colder rather than producing hot co... | <urn:uuid:f396d98f-69e7-4782-ac50-e697277be4e9> | 2.78125 | 150 | Personal Blog | Science & Tech. | 40.065 |
Predators in the deep
SOME marine animals have warm muscles, they are usually kept warmer than the surrounding water. It’s a useful evolutionary trick which keeps them one step ahead of their prey.
One such fish is tuna, when travelling at speed, it pulls its fins into grooves along the body, giving it a smooth, hydrod... | <urn:uuid:38a9a3c7-30da-4dfe-bf00-0f837115c02e> | 3.5 | 678 | Nonfiction Writing | Science & Tech. | 52.689428 |
Aechmophorus occidentalis—Western Grebe // Podiceps/Podilymbus—Eared/Pied-billed Grebe // Podiceps nigricollis—Eared Grebe // Podilymbus podiceps—Pied-billed Grebe // Tachybaptus dominicus—Least Grebe
Grebes are highly aquatic birds seldom leaving the water except in migration. They are expert divers and resort to divi... | <urn:uuid:2b55fb7a-28c2-4c21-8174-b1c689d924cd> | 3.421875 | 786 | Knowledge Article | Science & Tech. | 44.672049 |
Why are atoms "smashed" in an accelerator? What is learned by that
process? Why doesn't it set off a chain reaction like an atomic bomb?
What is the difference between "smashing" and "fusion"? Since they
dismantled the project here in Texas, I always wondered what was intended
to be learned by such a costly project.
Ac... | <urn:uuid:65626209-f8d5-4116-b50e-7388e4d2c05e> | 3.609375 | 663 | Comment Section | Science & Tech. | 65.540745 |
Astrophysics class - Textbook I use : Quantitative Astronomy, topics in Astronomy by Thomas L. Swihart
The situation: I am revisiting an old take home test that my professor wants me to resubmit. I had left the test in a basement that has flooded this winter and unfortunately I am having a hard time filling in the dama... | <urn:uuid:e82b0568-b5e1-4fa0-ba85-b7d199868380> | 2.6875 | 318 | Comment Section | Science & Tech. | 55.708018 |
datalock() - lock process into memory after allocating data and stack
int datalock(size_t datsiz, size_t stsiz);
datalock() allocates at least datsiz bytes of data space and stsiz
bytes of stack space, then locks the program in memory. The data
space is allocated by malloc() (see malloc(3C)). After the program is
locke... | <urn:uuid:266739f7-c5ae-4053-ba5c-cc3a899b220f> | 2.71875 | 333 | Documentation | Software Dev. | 47.320157 |
Aggregate functions perform a calculation on a set of values and return a single value. With the exception of COUNT, aggregate functions ignore null values. Aggregate functions are often used with the GROUP BY clause of the SELECT statement.
All aggregate functions are deterministic; they return the same value any time... | <urn:uuid:7157c1c6-1bf7-4498-8be2-02d7db78a8cc> | 3.265625 | 152 | Documentation | Software Dev. | 27.201786 |
The most well-known example of a topological phase is a 2D electron gas at low temperatures and in a high-magnetic field, which has a quantized Hall conductance. However, the conducting states on the surface of a 3D topological insulator, while bearing some similarities to those in the 2D case, are a new state of matte... | <urn:uuid:8f44d2f3-a175-4178-8fd1-d11a1ddbef08> | 2.890625 | 1,977 | Academic Writing | Science & Tech. | 53.843212 |
Spelling errors can mean one of two things:
- The person who makes them is not proficient in English, and doesn't take the time to compensate by using appropriate tools (dictionaries, spell checkers, etc.)
- The person who makes them is proficient in English, but doesn't care about spelling at all.
Either is a fairly b... | <urn:uuid:88f010a6-9fe3-4368-b2e0-e3df9740466d> | 2.90625 | 486 | Q&A Forum | Software Dev. | 39.125091 |
The Oracle PL/SQL HAVING clause is used to filter or restrict the groups formed by the GROUP_BY clause. It follows the GROUP_BY clause in the SELECT statement. The HAVING clause can also precede the GROUP_BY clause, but this isn't logical and is not recommended. All grouping is performed (and group functions executed) ... | <urn:uuid:44705bc1-5fc4-48b4-bc4a-9dfe111fdc1b> | 2.84375 | 214 | Documentation | Software Dev. | 46.615448 |
Earth Day 2030: "A new eye blinked open upon the world"
Copyright Ó 2005, by Alec Rawls
Vandenberg AFB—As people across the country watched the northern sky this afternoon, NASA officials gave the final go ahead and the gigantic Demi-Ra sun-reflecting satellite focused its millions of ten-meter by ten-meter reflecting ... | <urn:uuid:5b581869-a8b4-431c-a39f-87eef7294c17> | 2.9375 | 2,150 | Personal Blog | Science & Tech. | 50.448322 |
What do manatees do when the temperature drops? They head for the warm waters that are discharged from power stations, of course!
Florida manatees (Trichechus manatus latirostris) are adapted to water temperatures of 70 degrees F or higher (21 degrees C). Manatees must find warmer waters when the water temperature gets... | <urn:uuid:add0f680-ad57-4e3f-86f7-c36bfe412c56> | 3.5625 | 458 | Personal Blog | Science & Tech. | 48.157778 |
A thought experiment proposed by Erwin Schrödinger
to demonstrate the seemingly absurd character of reality at the level of Quantum Mechanics
. The thought experiment demonstrates quantum indeterminacy.
In Schrödinger's thought experiment, a cat is placed into a steel box with a small sample of radioactive material, a ... | <urn:uuid:87fdb663-ccbd-4f9a-8101-86915a58ecb7> | 3.53125 | 306 | Knowledge Article | Science & Tech. | 46.541297 |
WHAT IS WIND: Wind is a form of solar energy, caused by the uneven warming of the earth's surface. This is why air masses have different temperatures and pressures, and are constantly moving to find a balance. The higher the difference in pressure, the swifter the air moves and the stronger the wind. Mankind has used w... | <urn:uuid:692cb837-2db5-4944-9791-b5f262304697> | 3.59375 | 384 | Knowledge Article | Science & Tech. | 45.317243 |
Thermochemistry and Hess's Law
To measure the enthalpy change of two different reactions in the laboratory.
To use Hess's Law to estimate the enthalpy change for the reaction: 2 Mg (s) + O2 (g) 2 MgO (s)
In this lab, you will carry out the following two reactions to determine the enthalpy change for each:
(a) Mg (s) + ... | <urn:uuid:2d68b23b-01c4-46a6-9208-6941c942728e> | 4.09375 | 1,870 | Tutorial | Science & Tech. | 58.378316 |
The Sun is so far away that it would take the
Space Shuttle seven months to fly there. That's why the Sun, which
is a hundred times the diameter of the Earth, looks so small!
Three hundred years ago, astronomer Edmund Halley found a way to measure
the distance to the Sun and to the planet Venus. Knowing these distances... | <urn:uuid:c1e43733-8e16-4f15-870b-2ee18627e026> | 4.03125 | 239 | Knowledge Article | Science & Tech. | 64.656006 |
September 2, 2010: UN Intergovernmental Panel on Climate Change (IPCC) needs fundamental changes - see Report on InterAcademy Council IPCC Review Website: http://reviewipcc.interacademycouncil.net/. As reported in the press:
- "UN climate experts 'overstated dangers': Keep your noses out of politics, scientists told", ... | <urn:uuid:39278d8a-414a-4972-9eb7-7a96d216dccc> | 2.734375 | 710 | Content Listing | Science & Tech. | 35.380277 |
I think these are two of the most sustainable and cleanest energy sources. I have fantasies of a future where these play a much more major role in how we power the world than they do currently. Surprisingly, a quick search of Cyburbia doesn't turn up much discussion of them. So let's start that here.
Solar comes in two... | <urn:uuid:3380f356-7839-48c9-9fb1-beeff446b38d> | 2.6875 | 441 | Comment Section | Science & Tech. | 61.319432 |
Thank you very much Ms. Sue!!
Can you help me with this problem please... 3y+5(y-3)+8
Thank you Ms. Sue!!!
Can you help me with this problem please... 8x-3(x-5)=30
The quantity of heat that changes the temperature of a mass of a substance is given by , where is the specific heat capacity of the substance. For example, ... | <urn:uuid:c28714dc-4450-4fcb-8f33-3d6f58ca4665> | 3.296875 | 303 | Comment Section | Science & Tech. | 83.02 |
|Figure 1. A portion of Louis Agassiz's 1844 "genealogy of the class of fishes," reproduced from Patterson's 1977 paper on teleostean phylogeny. The figure shows the geological (historical) distribution of various types of fishes. "Agassiz's example shows clearly," Patterson writes (1977:580), "that belief in evolution... | <urn:uuid:7be3758b-4cc6-4fea-bed4-b75afdf10831> | 3.21875 | 128 | Knowledge Article | Science & Tech. | 37.103396 |
Debugging OWL Ontologies using Swoop
What is an Ontology?
Broadly speaking, an ontology is a set of axioms used
to formally define concepts and relations that exist in a
certain domain and assert information about individuals in that domain.
What is OWL? OWL is the de-facto standard for the creation and exchange of ont... | <urn:uuid:db6518ac-08ff-41f9-8996-3aabdf4c9053> | 3.21875 | 2,152 | Academic Writing | Software Dev. | 25.964436 |
National Geographic Atlas of the Ocean: The Deep Frontier by Sylvia A. Earle, National Geographic, £35, ISBN 0792264266
WHEN student Marie Tharp and oceanographer Bruce Heezen began drawing maps of the ocean floor from ships' echo-sounder traces in the 1950s, they created an inspiring image of the hidden face of our pl... | <urn:uuid:80e2d7b2-6c07-4d79-b6e7-3a4a1524ce99> | 3.296875 | 181 | Truncated | Science & Tech. | 47.476414 |
Related Information Links
The Arrhenius Equation
Background reading:Common sense and chemical intuition suggest that the higher the temperature, the faster a given chemical reaction will proceed. Quantitatively this relationship between the rate a reaction proceeds and its temperature is determined by the Arrhenius Equ... | <urn:uuid:0746c54b-2726-4776-9b09-6cba040e2405> | 3.984375 | 278 | Tutorial | Science & Tech. | 41.673448 |
An exponent defines the number of times a number is to
be multiplied by itself. For example, in ab
is the base and b
is multiplied by itself b
In a numerical example, 25
An exponent can also be referred to as a power: a number with an
exponent of 2 is raised to the second power. The following are other terms
related to... | <urn:uuid:0c4ca750-14e3-4814-930f-058dad34c491> | 4.4375 | 1,326 | Tutorial | Science & Tech. | 57.698414 |
Lightning occurs with ALL thunderstorms. An average 54 deaths and approximately 300 injuries occur around the U.S. annually. An estimated 100,000 thunderstorms occur nationwide each year. The southeast Texas area averages 50 to 60 days with thunderstorms per year.
Lightning results from the buildup and discharge of ele... | <urn:uuid:789ba18e-2d42-45d0-971d-6fd0aae3e4f9> | 3.453125 | 844 | Knowledge Article | Science & Tech. | 48.81612 |
In 2010, the Manomet Center for Conservation Sciences released a study of the carbon cycle of biomass. The Center looked at biomass using whole forests, a technique that is rarely used in biomass. Waste wood is the much more common fuel and has a more efficient "carbon profile."
The study itself concluded that biomass ... | <urn:uuid:8302afab-48f3-49b6-8ed6-84352a50351f> | 3 | 498 | Knowledge Article | Science & Tech. | 22.663538 |
Rock and the Rock Cycle
Rocks are always on the move through the rock cycle!
Almost all of the rock that we have on Earth today is made of the same stuff as the rocks that dinosaurs and other ancient life forms walked, crawled or swam over. While the stuff that rocks are made from has stayed the same, the rocks themsel... | <urn:uuid:64181842-885a-4809-8d06-5b8ffaeae3e5> | 3.28125 | 100 | Knowledge Article | Science & Tech. | 59.525837 |
In all my years of teaching and writing about web design, I don’t think I’ve ever seen a topic explode in terms of interest level and passion as quickly as I have with HTML5. Despite the huge amount of interest in the topic, there is still a great deal of confusion about what HTML5 is and how to go about learning it. I... | <urn:uuid:7b9d595d-0bba-489c-a998-792d5de6ccf4> | 3.046875 | 936 | Personal Blog | Software Dev. | 49.939615 |
From data in the links provided below, it appears that current temperature rise of the world ocean would be enough to raise a volume of water more than 100 times greater than Sydney Harbour from freezing to boiling point every day.
World Ocean Heat Content
Graph Credit: Adapted from S. Levitus et al., Geophys. Res. Let... | <urn:uuid:e07ba644-c7ad-4744-8157-06a943ff010f> | 3.46875 | 1,319 | Comment Section | Science & Tech. | 56.054815 |
The definition itself does not make things very clear though. Let us try understand a bit more. So today, suppose you have a web application that you want to deploy on multiple platform, say Android, iPhone, etc. In this app, you want to use one or more of the platform services to obtain some kind of data or carry out ... | <urn:uuid:d9e9bb7a-8252-4dad-af84-9477f06e8b96> | 3.171875 | 1,066 | Tutorial | Software Dev. | 51.334877 |
I need a way to make a program work on only the first computer it is run on, it doesn't need to be very secure but it needs to work. The idea that I came up with is to have the program save the MAC Address (of the first computer it is run on) inside of its own EXE. And then from then on check to see if the MAC Address ... | <urn:uuid:9c296902-575d-4a49-a422-e6d5c68d4641> | 2.984375 | 982 | Comment Section | Software Dev. | 61.352724 |
The basis for this data set is the Normalized Difference Vegetation Index
(NDVI) data set calculated from AVHRR data by Los et al. (1994) following the
work of Tucker et al. (1986). These data were already in the form of a 1 deg.
x 1 deg. monthly composited NDVI data set; i.e., no further single channel
data or geometr... | <urn:uuid:8b3810bd-9eb4-493e-9a1e-75d41461dafe> | 2.890625 | 209 | Knowledge Article | Science & Tech. | 59.473505 |
Life habit: lichenized, lichenicolous, or non-lichenized Thallus: immersed or superficial, often rudimentary but occasionally well developed photobiont: if present, trentepohlioid or coccal green algae Ascomata: rounded, elongate or branched exciple: usually not distinct, often composed of peripheral hyphal structures ... | <urn:uuid:7dc568e8-8474-4e94-8697-6a7f3776cd7e> | 3 | 1,659 | Knowledge Article | Science & Tech. | 23.925375 |
Ask Dr. Math
High School Archive
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See also the
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Stars indicate particularly interesting answers or
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Selected answers to common questions:
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- Why ... | <urn:uuid:fd0f46a0-196e-4fee-8f4d-76714aa513b6> | 2.921875 | 513 | Q&A Forum | Science & Tech. | 80.457499 |
L4 and L5 points are the most stable for a given orbiting celestial body. The only difference is that L4 lies in front of the body while L5 is ahead of it as @tpg quotes it. They are almost the same because both form an equilateral triangle with the bodies. If you sketch both, you'd get a 60 degree angle. These Lagrang... | <urn:uuid:cc2c7c8c-bd15-4487-bb16-702325e8d056> | 2.921875 | 296 | Q&A Forum | Science & Tech. | 61.597207 |
Standard economic theory predicts that exploitation alone is unlikely to result in species extinction because of the escalating costs of finding the last individuals of a declining species.
Researchers argued that the human predisposition to place exaggerated value on rarity fuels disproportionate exploitation of rare ... | <urn:uuid:df4204e2-db09-4c4d-8dd3-e9cad984f855> | 3.8125 | 236 | Truncated | Science & Tech. | 25.594816 |
What Does A Black Hole Sound Like?
Sept. 9, 2003: Astronomers using NASA’s Chandra X-ray Observatory have found, for the first time, sound waves from a supermassive black hole. The “note” is the deepest ever detected from any object in our Universe. The tremendous amounts of energy carried by these sound waves may solv... | <urn:uuid:8beb4123-3e6b-4bc2-b1a9-2c66c56aa568> | 3.53125 | 390 | Comment Section | Science & Tech. | 60.545625 |
Minnesota Drought Situation Report - February 21, 2007
Drought Monitor - February 13, 2007
The National Drought Mitigation Center Drought Monitor continues to place much
of northern Minnesota in the Extreme Drought or
Severe Drought categories.
Portions of central Minnesota are depicted in the Moderate Drought
classifi... | <urn:uuid:b8ff200b-b567-458d-9e50-948eec67cff8> | 3.03125 | 568 | Knowledge Article | Science & Tech. | 34.699664 |
Invasion of the Lionfish
The Caribbean's coral reefs are struggling under intense pressure from overfishing, pollution, development, and climate change. Now these over-stressed reefs are facing an additional threat from an uninvited guest, which has the potential to tip them over the edge. Luckily, community efforts ar... | <urn:uuid:f4f3d76e-c65e-4d02-b017-cdf769fa6872> | 3.515625 | 909 | Knowledge Article | Science & Tech. | 31.735082 |
Why Aren’t Birds Bigger?
Birds are bigger than mammals, but the largest-ever bird weighed less than a cow. Why aren't birds bigger? One theory is that as avian eggs get bigger their shells get disproportionately thicker to support their weight. Eventually the shell would be too thick for a chick to break through, and t... | <urn:uuid:a67c6f55-6427-4631-bb37-0215ac5379a8> | 3.09375 | 106 | Knowledge Article | Science & Tech. | 71.845556 |
File:Phanerozoic Climate Change Rev.png
From Global Warming Art
This figure shows the long-term evolution of oxygen isotope ratios during the Phanerozoic eon as measured in fossils, reported by Veizer et al. (1999), and updated online in 2004 . Such ratios reflect both the local temperature at the site of deposition an... | <urn:uuid:93591c69-f3f1-4b77-b694-6e68242f541d> | 3.671875 | 1,408 | Knowledge Article | Science & Tech. | 50.920098 |
In this post I will talk for one of the new feature in C# 4.0 – Named and Optional Parameter. Actually these are not a single feature but two different feature. You can get more benefit if you work with them together. So, what are those? Named parameter is a way to provide an parameter to the method using the name of t... | <urn:uuid:d66dc3e3-9303-4b43-8672-34dafb7872e7> | 3.265625 | 756 | Personal Blog | Software Dev. | 60.194853 |
NASA announced Tuesday a Grand Challenge focused on finding all asteroid threats to human populations and knowing what to do about them.
The challenge is a large-scale effort that will use multi-disciplinary collaborations and a variety of partnerships with other government agencies, international partners, industry, a... | <urn:uuid:4fda2255-cbcb-495f-a749-0d21fa8c32f2> | 2.921875 | 363 | Content Listing | Science & Tech. | 35.21358 |