text stringlengths 174 655k | id stringlengths 47 47 | score float64 2.52 5.25 | tokens int64 39 148k | format stringclasses 24
values | topic stringclasses 2
values | fr_ease float64 -483.68 157 | __index__ int64 0 1.48M |
|---|---|---|---|---|---|---|---|
To create a table, you start and end a line using the table marker "||". Between those start and end markers, you can create any number of cells by separating them with "||". To get a centered cell that spans several columns, you start that cell with more than one cell marker. Adjacent lines of the same indent level co... | <urn:uuid:a697fedf-3f41-4d68-a7ab-4439b6a63379> | 3.40625 | 569 | Customer Support | Software Dev. | 62.628793 | 2,000 |
Thu September 27, 2012
Streams Of Water Once Flowed On Mars; NASA Says Photos Prove It
Originally published on Thu September 27, 2012 8:31 pm
NASA's Curiosity rover has found definitive proof that water once ran across the surface of Mars, the agency announced today. NASA scientists say new photos from the rover show r... | <urn:uuid:7ebf103f-99c0-42ef-b1d5-fecbc4bb35bb> | 3.828125 | 570 | News Article | Science & Tech. | 50.996163 | 2,001 |
In the 1920s, examining photographic plates from the
Mt. Wilson Observatory's
100 inch telescope,
Edwin Hubble determined the distance to the
decisively demonstrating the existence of other galaxies far beyond
the Milky Way.
His notations are evident on the historic plate image
inset at the lower right, shown in contex... | <urn:uuid:c4a12908-519a-4291-bce8-43604a6d0a46> | 3.984375 | 294 | Knowledge Article | Science & Tech. | 42.238893 | 2,002 |
Effects of immunostimulation on social behavior, chemical communication and genome-wide gene expression in honey bee workers (Apis mellifera)
1 Laboratoire Ecologie Evolution Symbiose, UMR CNRS 6556, University of Poitiers, 40 avenue du Recteur Pineau, Cedex, F-86022, POITIERS, France
2 Department of Entomology, Center... | <urn:uuid:e3fa0175-0b97-49f3-b5b4-4dec2fd2ce77> | 2.59375 | 587 | Academic Writing | Science & Tech. | -7.019429 | 2,003 |
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.
Because of these obstacles, the number of physicists working on the theory had dropped to two—Schwarz and Michael Green, of Queen Mary College, Lo... | <urn:uuid:1f18dced-7ca5-4b21-82b3-b3881f309153> | 3.40625 | 211 | Truncated | Science & Tech. | 55.44779 | 2,004 |
Seriously? Yes, and not just on a plane. Jake Socha, a Virginia Tech biologist, and his team recently completed a study that sheds some light on how some of these creatures fly. They reported their findings last week at the American Physical Society Division of Fluid Dynamics meeting.
Socha and his colleagues used high... | <urn:uuid:3f731f54-0459-4acb-9b39-128dbbeb08d6> | 4.0625 | 412 | News Article | Science & Tech. | 53.549958 | 2,005 |
Published on Friday, February 16, 2007 by Reuters
Greenhouse Gases Hit New High, Rise Accelerates
by Alister Doyle
OSLO - Greenhouse gases widely blamed for causing global warming have jumped to record highs in the atmosphere, apparently stoked by rising emissions from Asian industry, a researcher said on Friday.
"Leve... | <urn:uuid:b3d29764-2fd3-4a8c-92f2-35f7b0232a7e> | 3.140625 | 624 | News Article | Science & Tech. | 52.739618 | 2,006 |
Isentropic LiftLifting of air that is traveling along an upward-sloping isentropic surface.
Isentropic lift often is referred to erroneously as overrunning, but more accurately describes the physical process by which the lifting occurs. Situations involving isentropic lift often are characterized by widespread stratifo... | <urn:uuid:1fc62f10-767f-404c-a08f-e128aea15f12> | 2.71875 | 139 | Structured Data | Science & Tech. | 47.450708 | 2,007 |
Why Citizen Science?
No matter where you live—along the coast, in the heartland, or somewhere in between—your life is affected by water quality. Water quality issues raise many questions that are important to us all at some point or another. Is the tap water safe to drink? Will I get sick if I swim in this lake? Why ar... | <urn:uuid:c11f00d3-5605-47ba-ba0c-75844a017c2c> | 4.03125 | 1,221 | Knowledge Article | Science & Tech. | 28.354568 | 2,008 |
Physics and Star WarsThe Interstellar triology, Star Wars, uses science and technology in their settings and storylines, though they were not considered "hard" science fiction. Star Wars concentrates mainly on the epic drama and not on the "technobabble". It has borrowed freely from the scientific world. The series has... | <urn:uuid:fbff2c91-3597-4911-8675-20a68a31984e> | 2.9375 | 254 | Knowledge Article | Science & Tech. | 29.614286 | 2,009 |
- Universities team up to track Atlantic sturgeon and prevent accidental bycatchPosted 1 day ago
- Nitrate enters groundwater-fed streams decades after field applicationPosted 1 day ago
- GIS mapping tool will help Wisconsin fish farm startups plot their pondsPosted 2 days ago
- Vaisala WXT520: Weather station designed... | <urn:uuid:5d0ce22a-9aa6-4c66-adbf-27f73a5aaf44> | 3.09375 | 1,163 | Content Listing | Science & Tech. | 37.247121 | 2,010 |
Larry Bell, Contributor
I write about climate, energy, environmental and space policy issues.
Page 3 of 3
A 2010 survey of media broadcast meteorologists conducted by the George Mason University Center for Climate Change Communication found that 63% of 571 who responded believe global warming is mostly caused by natura... | <urn:uuid:c67954b9-39b6-481e-9fc8-4cd1cb5c7356> | 3.328125 | 534 | Personal Blog | Science & Tech. | 25.774296 | 2,011 |
July 6, 2012: Six-year-old Alexander Merrill of Sioux Falls, S.D., cools off in a cloud of mist at the Henry Doorly Zoo in Omaha, Neb., as temperatures reached triple digits.AP Photo/Nati Harnik
Climate blogger Steven Goddard, who in the past helped program government climate models, has put together a graph to show ho... | <urn:uuid:36190303-5d10-4ff0-96ff-c4a2120414f2> | 2.625 | 1,081 | News Article | Science & Tech. | 56.17544 | 2,012 |
The functions described in this section (
printf and related
functions) provide a convenient way to perform formatted output. You
printf with a format string or template string
that specifies how to format the values of the remaining arguments.
Unless your program is a filter that specifically performs line- or
charact... | <urn:uuid:c91e3746-12cd-405b-bf1b-7be5876c989e> | 3.03125 | 114 | Documentation | Software Dev. | 32.207486 | 2,013 |
Doomsday and the Big Bang Experiment
It is expected that nuclear research known as CERN experiment will reveal how the universe was created. Everything depends on the success of the experiment. This is the world's largest experiment which may have positive or negative outcomes. This may cost lives of human beings or di... | <urn:uuid:cdc80be4-639f-4d09-a1b1-90fe3885d28a> | 3.03125 | 310 | Truncated | Science & Tech. | 42.946238 | 2,014 |
Biosphere 2, privately funded ecological research project in which eight people lived sealed in a 3.15-acre (1.28-hectare) structure for two years (Sept. 26, 1991–Sept. 26, 1993). Located in Oracle, Ariz., about 35 mi (56 km) north of Tucson, and designed to depend on the outside only for electricity and sunlight, Bios... | <urn:uuid:d30244c1-ca2f-46ba-a165-ca8e328caa97> | 3.15625 | 323 | Knowledge Article | Science & Tech. | 45.389755 | 2,015 |
‘Extinct’ Whale Found: Rare Pygmy Right Whale Is The Last Survivor Of An Ancient Species
The pygmy right whale has fascinated scientists since its discovery in the 1800s. It’s an uncommon sight, and its peculiar arched, frown-like snout is unlike any other whale alive today.
According to new research, published in the ... | <urn:uuid:9e51f694-71a0-44c9-868d-ae5424030a45> | 3.5 | 421 | News Article | Science & Tech. | 44.458148 | 2,016 |
SINGAPORE — A team from the Chinese Academy of Sciences trekked across frigid highlands in Tibet to confirm a significant recent discovery about climate change. They drilled and analyzed five ice cores from various locations on the Tibetan Plateau to find that the concentration of black carbon, or soot, in the ice has ... | <urn:uuid:5f5f8d86-c387-4756-a9fe-3ad46e736988> | 3.828125 | 1,198 | News Article | Science & Tech. | 35.107143 | 2,017 |
RED-WINGED BLACKBIRD (Photo by Ted Schroder)
Ithaca, NY—As oil washes ashore along the Gulf Coast, the Cornell Lab of Ornithology is asking birders to keep an eye on nesting birds—not just near water, but hundreds of miles inland.
“Wildlife biologists are monitoring species such as pelicans and plovers in the immediate... | <urn:uuid:9afbc564-7239-4cf7-95c0-2835097f1cc0> | 3.15625 | 436 | News Article | Science & Tech. | 35.475962 | 2,018 |
Development of keeled flowers
A study using scanning electron microscopy has revealed that the keeled petals of Leguminosae and Polygalaceae are fundamentally different.
25 Mar 2011
Scanning electron micrographs of dissected floral buds of Polygala violacea (left) and P. gomesiana (right) (Image: M. Angélica Bello Guti... | <urn:uuid:518f2425-77a7-4b69-865c-ba45d2bee6a6> | 3.453125 | 626 | News (Org.) | Science & Tech. | 35.984681 | 2,019 |
The National Ecological Observatory Network (NEON) is a continental-scale observatory designed to gather and provide 30 years of ecological data on the impacts of climate change, land use change and invasive species on natural resources and biodiversity. NEON is a project of the National Science Foundation, with many o... | <urn:uuid:1c8aed8a-c33b-4a1b-95ed-f30148bbd193> | 3.34375 | 185 | About (Org.) | Science & Tech. | 22.137336 | 2,020 |
Science is basically the combination of good logical reasoning with good practical knowledge of actual natural phenomena. All humans do some logical reasoning and have some practical knowledge of some actual natural phenomena, but most have to busy themselves with feeding themselves and their families as best they can.... | <urn:uuid:1aa519ad-f617-40f7-89c9-ac0cfbd7feed> | 3.0625 | 4,293 | About (Org.) | Science & Tech. | 32.400819 | 2,021 |
ISAAC ASIMOV would probably have been horrified at the experiments under way in a robotics lab in Slovenia. There, a powerful robot has been hitting people over and over again in a bid to induce anything from mild to unbearable pain - in apparent defiance of the late sci-fi sage's famed first law of robotics, which sta... | <urn:uuid:b6a4c306-eee3-4d8c-9832-8b5d0fbc9bd6> | 3.328125 | 1,102 | Comment Section | Science & Tech. | 48.718808 | 2,022 |
Report an inappropriate comment
Sun Feb 24 07:17:00 GMT 2013 by Liza
Eric, bacteria convert organic matter to CO2 *after* the organism has died. As long as the plants are alive and growing, they won't get the chance. So: arctic summer- air temperature's warm enough to have plants growing- bacteria don't touch live plan... | <urn:uuid:7d11046d-dcbc-4263-b526-c0ebca3365d8> | 3.375 | 188 | Comment Section | Science & Tech. | 38.251884 | 2,023 |
The CANDU reactor is a Canadian-invented, pressurized heavy water reactor developed initially in the late 1950s and 1960s by a partnership between Atomic Energy of Canada Limited (AECL), the Hydro-Electric Power Commission of Ontario (now known as Ontario Power Generation), Canadian General Electric (now known as GE Ca... | <urn:uuid:f4f24777-5342-4091-a821-5f81533c5b38> | 3.875 | 4,386 | Knowledge Article | Science & Tech. | 33.983366 | 2,024 |
In Java, thread scheduler can use the thread priorities in the form of integer value to each of its thread to determine the execution schedule of threads . Thread gets the ready-to-run state according to their priorities.
This page discusses - Synchronized Threads.
Multithreading in Java
This page discusses - Multithre... | <urn:uuid:a1d3e8da-fdfc-4674-a483-50916bdd4005> | 3.5625 | 122 | Documentation | Software Dev. | 37.189951 | 2,025 |
Glue beats gecko's sticking power
10 October 2008
The prospect of a 'Spider Man' suit which would allow the wearer to scale sheer walls has moved a step closer: a carbon nanotube-based material has smashed records for sticking power to a vertical surface, and it can be easily peeled away too.
A gecko's ability to climb... | <urn:uuid:2e89e3ca-2a94-4ba0-9e1f-6dc6cd56f552> | 3.171875 | 792 | News Article | Science & Tech. | 39.799673 | 2,026 |
Oct. 22, 2010 Astronomers in Japan, using an X-ray detector on the International Space Station, and at Penn State University, using NASA's Swift space observatory, are announcing the discovery of an object newly emitting X-rays, which previously had been hidden inside our Milky Way galaxy in the constellation Centaurus... | <urn:uuid:7110cbeb-35eb-4055-9899-7dcf6ad8de07> | 3.125 | 545 | News Article | Science & Tech. | 31.627274 | 2,027 |
Habitat Affects Escape Behavior of Birds
It seems birds of the same species raised in diverse settings behave differently in the face of a threat. Birds raised in an urban environment react differently than country-bred birds when faced with a predator.
A study undertaken by Diego Ibanez-Alamo, researcher at the Univer... | <urn:uuid:cd6f5793-37ef-4050-ada7-07a73ce582e4> | 3.828125 | 375 | News Article | Science & Tech. | 30.529636 | 2,028 |
Scientists have long known of dissimilarities in anatomy and activity between the brains of women and men—now a rodent study shows that even individual neurons behave differently depending on sex.
Robert Clark of the University of Pittsburgh School of Medicine and his colleagues found that cultured neurons from female ... | <urn:uuid:7a3ac89e-ae09-44f7-98c5-b4237a5dab4c> | 3.75 | 345 | Truncated | Science & Tech. | 38.936705 | 2,029 |
Astronomical Eyepiece and Solar Filters
Astronomical filters can enhance the appearance of the moon, planets, and nebulae. The moon and in some cases planets are too bright when viewed through a telescope. Lunar or neutral density filters reduce this brightness, making it easier to discern fine details. In other cases ... | <urn:uuid:4996244d-aad8-4dce-9d26-fe6445637543> | 3.265625 | 247 | Knowledge Article | Science & Tech. | 18.824875 | 2,030 |
Climate Change Information Project - February 2013 Digest Vol. 8
WASHINGTON (Reuters) - Thousands of protesters gathered on the Washington's National Mall on Sunday calling on President Barack Obama to reject the controversial Keystone XL oil pipeline proposal and honor his inaugural pledge to act on climate change.
Or... | <urn:uuid:50c5f80e-7064-4178-8b19-5a048e9a26fb> | 2.578125 | 854 | Content Listing | Science & Tech. | 56.007305 | 2,031 |
The Atacama Desert in Chile is on the wrong side of the Andes. The trade winds that might bring moisture from the east get caught in the mountains instead, making this the driest place on Earth. But this turns out to be perfect for the Atacama Large Millimeter Array—the most powerful telescope in history. At 5,000 mete... | <urn:uuid:fdb0c8cb-1199-491e-9158-350b7e408730> | 3.5625 | 421 | Truncated | Science & Tech. | 45.242956 | 2,032 |
by Elizabeth K. Gardner
West Lafayette IN (SPX) Dec 02, 2011
A drop in carbon dioxide appears to be the driving force that led to the Antarctic ice sheet's formation, according to a recent study led by scientists at Yale and Purdue universities of molecules from ancient algae found in deep-sea core samples.
The key rol... | <urn:uuid:382c9246-8d43-4e94-ba3d-d659ff4d79b6> | 3.28125 | 1,658 | Truncated | Science & Tech. | 35.658527 | 2,033 |
Data reported by the weather station: 107630 (EDDN)
Latitude: 49.5 | Longitude: 11.08 | Altitude: 318
|Main||Year 1968 climate||Select a month|
To calculate annual averages, we analyzed data of 366 days (100% of year).
If in the average or annual total of some data is missing information of 10 or more days, this is not... | <urn:uuid:2ed29869-20aa-4d27-a744-c824a3b48e1b> | 2.8125 | 354 | Structured Data | Science & Tech. | 69.704762 | 2,034 |
Want to stay on top of all the space news? Follow @universetoday on Twitter
Globular clusters are gravitationally bound, dense concentrations of stars. There can be hundreds of thousands of stars in a cluster, and they are so close together that it’s hard to distinguish globular clusters outside of our galaxy from star... | <urn:uuid:d1ac49a9-5ba6-414e-ade6-f040425a1e88> | 3.890625 | 1,008 | News Article | Science & Tech. | 42.178992 | 2,035 |
Re-topology, or sometimes just retopology, is the process of adjusting the topology of an existing 3D model. Topology refers to mesh-based 3D models, and is the way the individual polygons are meshed together into a 3d grid, with each polygon sharing a dividing line with each of it?s neighbours, until the mesh encloses... | <urn:uuid:236148de-6181-482f-9d0f-b5fc706f88a3> | 2.96875 | 453 | Content Listing | Science & Tech. | 34.042636 | 2,036 |
Workshop Resources: Can a Good Climate Go Bad? Past, Present, and Future Climate
Welcome to the online resources for the 2006 educators workshop, Can a Good Climate Go Bad? Past, Present, and Future Climate. This workshop, presented at the University of Texas by Teri Eastburn of UCAR Education and Outreach, is intended... | <urn:uuid:d239b8da-238e-4387-a665-d8b6f88ed2ad> | 3.390625 | 521 | Content Listing | Science & Tech. | 18.936218 | 2,037 |
U.S. Drought Monitor
The national drought footprint shrank slightly this week, as heavy rains fell across the South, Southeast, Midwest and parts of the Mid-Atlantic states, and major snowfall blanketed parts of the Rocky Mountains and Northern Cascades, bringing relief to those regions. However, the hardest-hit drough... | <urn:uuid:56a67344-868e-4396-98e2-a3d372b0d0f0> | 2.796875 | 1,089 | News Article | Science & Tech. | 50.667102 | 2,038 |
Every day an 18-wheel tanker truck pulls up alongside a lush forest near Duke University in North Carolina. Within a short time, the truck’s cargo of dreaded carbon dioxide gas begins flowing through a series of pipes and onto a forest rich with loblolly pines and small hardwood trees.
For four years now, scientists at... | <urn:uuid:d31a4fb4-c36f-41de-8594-4d3d4d30a335> | 3.75 | 739 | News Article | Science & Tech. | 39.831642 | 2,039 |
September 10, 2009 | 3
The illegal trade of bushmeat—meat and products made from wildlife—has grown dramatically in the past several years, thanks to high demand, enormous profits, a lack of law enforcement and minimal sentencing for criminals caught trafficking in bushmeat. The worldwide market for these illegal produ... | <urn:uuid:f82aaac1-9edb-4974-a305-d3a5924155ca> | 3.421875 | 773 | News Article | Science & Tech. | 29.698217 | 2,040 |
Posts Tagged: Alexander Nguyen
Scorpions--to fear or to revere?
The Bohart Museum of Entomology's open house last Sunday drew visitors of all ages who marveled at the scorpions glowing under ultraviolet light.
UC Davis entomology major Alexander Nguyen flashed a UV light on the critters as his audience watched in amaze... | <urn:uuid:0c1bb768-743e-4ed1-a3fe-557e93155e36> | 2.5625 | 925 | Personal Blog | Science & Tech. | 49.450707 | 2,041 |
Grass. Scientists have imitated natural photosynthesis and created a record-fast molecular catalyzer. (Credit: © Nejron Photo / Fotolia)
Artificial Photosynthesis Breakthrough: Fast Molecular Catalyzer -- Science Daily
ScienceDaily (Apr. 12, 2012) — Researchers from the Department of Chemistry at the Royal Institute of... | <urn:uuid:06198aa9-b3f7-43ec-bec2-b343f51124f4> | 3.03125 | 158 | Truncated | Science & Tech. | 28.452879 | 2,042 |
Molecular Biology and Evolution, doi:10.1093/molbev/msm077
Grinding up Wheat: a Massive Loss of Nucleotide Diversity Since Domestication
A Haudry et al.
Several demographic and selective events occurred during the domestication of wheat from the allotetraploid wild emmer (Triticum turgidum ssp. dicoccoides). Cultivated... | <urn:uuid:ada14b95-41c1-4a28-9284-568a6f0e0943> | 2.828125 | 437 | Academic Writing | Science & Tech. | 14.600573 | 2,043 |
If you are looking for TeX support, please use the VietTUG Google Group
Bash: some useful "set"
» Votes: 2/2
When using Bash, you can change the default behavior of the script/shell by
set command. Example
set -e: The script/shell will exit immediately if a simple command exits with a non-zero status, unless the comman... | <urn:uuid:3e9cfbc3-6c38-48e7-bcb1-b12736e0a134> | 2.671875 | 363 | Documentation | Software Dev. | 54.63369 | 2,044 |
Electrodynamics/Dipoles and Multipoles
In the previous sections of the book, charges and charge distributions have been treated in a general fashion. In this section of the book, we will allow for ordered charge configurations of which molecular matter is actually comprised of. For the most part, ordinary matter is ele... | <urn:uuid:5c6bb8a3-b26d-4fa7-bbf7-333709851afb> | 4.28125 | 324 | Knowledge Article | Science & Tech. | 31.814659 | 2,045 |
Cumulus clouds are a type of low-level cloud that can have noticeable vertical development and clearly defined edges. Cumulo- means "heap" or "pile" in Latin. They are often described as "puffy" or "cotton-like" in appearance, and generally have flat bases. Cumulus clouds, being low-stage clouds, are generally less tha... | <urn:uuid:d511ef72-4314-4e90-8209-24549d78b297> | 4.40625 | 5,511 | Knowledge Article | Science & Tech. | 63.372334 | 2,046 |
I recently blogged that you can now play Angry Birds in your web browser. This opens up all sorts of video analysis possibilities for physics lessons and assessment. Students can easily make their own videos or you can pre-record your own. Videos can be recorded using Jing, Screencast-O-Matic, or Camtasia Studio. Analy... | <urn:uuid:cbae3902-5532-4ea9-b7b7-919234ad0234> | 3.296875 | 422 | Personal Blog | Science & Tech. | 70.689083 | 2,047 |
NASA has moved into extra-solar planetary weather forecasting. Well, mapping, but one has to start somewhere. Researchers using the agency's Spitzer infrared space telescope have mapped the weather patterns of two extremely hot, distant planets. The May 9th edition of Nature carries a description of the winds on the su... | <urn:uuid:481c4c3d-0b46-48b3-b837-7a78f0423840> | 2.734375 | 384 | Comment Section | Science & Tech. | 62.984274 | 2,048 |
EMIPLIB is a library to facilitate the development of programs that need to stream several kinds of media over IP. The library consists of several kinds of components that can be linked together in various ways, thereby providing a flexible framework. It also provides some ready-to-use classes for the transmission of a... | <urn:uuid:4ee2d316-1d47-436f-a385-5e7561477f18> | 2.515625 | 265 | Content Listing | Software Dev. | 33.881245 | 2,049 |
Become a fan of h2g2
How did the universe begin? Or did it begin? Sir Fred Hoyle didn't think so. He derisively coined the term the Big Bang. Now Fred Hoyle is dead and the theory is still alive.
14 billion years ago, give or take a couple billion years, the universe as we know it wasn't here. Today we believe we live ... | <urn:uuid:8d5933ad-4ae4-4a7a-bdf1-02cb6ad1ad5b> | 3.8125 | 1,133 | Personal Blog | Science & Tech. | 58.575672 | 2,050 |
|Maintainerfirstname.lastname@example.org, email@example.com, firstname.lastname@example.org|
Support for using
Text data with native code via the Haskell
foreign function interface.
Interoperability with native code
Text type is implemented using arrays that are not guaranteed
to have a fixed address in the Haskell he... | <urn:uuid:6c3e72ce-8ef9-44fa-9aae-fdb884fd0e8d> | 2.53125 | 296 | Documentation | Software Dev. | 37.119 | 2,051 |
In 1985 Klaus von Klitzing won the Nobel Prize for discovery of the quantised Hall effect. The previous Nobel prize awarded in the area of semiconductor physics was to Bardeen, Shockley and Brattain for invention of the transistor. Everyone knows how important transistors are in all walks of life, but why is a quantise... | <urn:uuid:4d49f668-e836-42fe-946a-68e62fe1ff0a> | 3.5625 | 1,394 | Knowledge Article | Science & Tech. | 48.9762 | 2,052 |
Vincent Van Gogh painted his most turbulent images when insane. The Labrador Current resembles Van Gogh’s paintings when it becomes unstable. There is no reason that mental and geophysical instability relate to each other. And yet they do. Russian physicist Andrey Kolmogorov developed theories of turbulence 70 years ag... | <urn:uuid:b6c2e1db-62c3-45fa-b7e0-9bd8a5dd987b> | 3.234375 | 927 | Personal Blog | Science & Tech. | 58.843243 | 2,053 |
Digit Patterns of the Powers of 5
Date: 09/14/98 at 21:04:53 From: Tim Peterson Subject: Multiplication digit patterns I was playing with powers of 5, and I saw a pattern in the digits of the results: 5^1: 5 5^2: 25 5^3: 125 5^4: 625 5^5: 3125 5^6: 15625 5^7: 78125 5^8: 390625 5^9: 1953125 5^10: 9765625 5^11: 48828125 ... | <urn:uuid:2d4327d8-6b3e-4475-8e12-c3779d96f9f0> | 3.40625 | 1,012 | Comment Section | Science & Tech. | 89.555529 | 2,054 |
Hello all, i need to rearrange this formula to make E the subject (E=)
M= 0.67 log (0.37 E) +1.46
While i can rearrange most formula, the ones that contain log seem to confuse me.
Thanks in advance!
To get rid of a log(x) term to get an x, you have the exponential of it. So as an example, if I have y = log(x) and I wan... | <urn:uuid:69f1cff9-e9f9-4d6c-a71d-36716e50753b> | 2.625 | 383 | Q&A Forum | Science & Tech. | 79.909777 | 2,055 |
Writes only the starting XML element to an XML document or stream.
This member is overloaded. For complete information about this member, including syntax, usage, and examples, click a name in the overload list.
|WriteStartObject(XmlDictionaryWriter, Object)||Writes the start of the object's data as an opening XML elem... | <urn:uuid:d700dfa3-4dde-4642-bdc1-08b5c9c0c2ec> | 3.140625 | 196 | Documentation | Software Dev. | 31.006046 | 2,056 |
Proposed fleet of probes to determine if life really exists on Mars
Washington, Apr 24 (ANI): Astrobiologists are calling for a mission to Mars with "a strong and comprehensive life detection component."
At the heart of their proposal is a small fleet of sensor packages that can punch into the Martian soil and run a ra... | <urn:uuid:041c4782-4479-41e3-b2ad-b35aa3791af9> | 3 | 710 | News Article | Science & Tech. | 40.255539 | 2,057 |
Depth Charge: Using Atomic Force Microscopy to Study Subsurface Structures
For Immediate Release: June 23, 2010
Contact: Michael Baum
Over the past couple of decades, atomic force microscopy (AFM) has emerged as a powerful tool for imaging surfaces at astonishing resolutions—fractions of a nanometer in some cases. But ... | <urn:uuid:775781f9-4a94-4738-abad-681ee88a68ae> | 3.421875 | 925 | News (Org.) | Science & Tech. | 33.052857 | 2,058 |
Copyright © University of Cambridge. All rights reserved.
'Avalanche!' printed from http://nrich.maths.org/
Mathematicians and scientists use experiments to model what happens in avalanches, so they can understand them better. In this investigation, students will model an avalanche, collect data and display their findi... | <urn:uuid:0eac12b5-dc0f-4af5-8642-c70acc60efa9> | 4.4375 | 1,371 | Tutorial | Science & Tech. | 53.842226 | 2,059 |
CGI::Pretty - module to produce nicely formatted HTML code
CGI::Pretty is a module that derives from CGI. It's sole function is to allow users of CGI to output nicely formatted HTML code.
When using the CGI module, the following code: print table( TR( td( "foo" ) ) );
produces the following output: <TABLE><TR><TD>foo</... | <urn:uuid:4963064f-39fd-4aa7-aada-6bc68702a355> | 2.65625 | 638 | Documentation | Software Dev. | 59.948725 | 2,060 |
(Phys.org)—Robert F. Service has published a News & Analysis piece in the journal Science describing the progress being made in nanowire photovoltaics. One of those innovations is described in another paper published in the same journal by a team working on indium phosphate nanowire technology. In their paper, they des... | <urn:uuid:ba56d2e2-bc8a-469d-85ed-0d307efe5e21> | 3.703125 | 741 | News Article | Science & Tech. | 47.906026 | 2,061 |
(PhysOrg.com) -- While orbiting Saturn for the last six years, NASA's Cassini spacecraft has kept a close eye on the collisions and disturbances in the gas giant's rings.
While orbiting Saturn for the last six years, NASA's Cassini spacecraft has kept a close eye on the collisions and disturbances in the gas giant's ri... | <urn:uuid:1d765964-88a4-49b6-a853-a001116408f2> | 3.734375 | 961 | News Article | Science & Tech. | 49.166832 | 2,062 |
Our planet is shaped by the oceans, the dynamic geology and the changing climate. It teems with life and we, in particular, have a massive impact as we build homes, grow food, travel and feed our ever-hungry need for energy. Mathematics is vital in understanding all of these, which is why 2013 has been declared as the ... | <urn:uuid:b0d7b250-6462-48b1-b199-fdd912714695> | 2.609375 | 487 | News (Org.) | Science & Tech. | 45.575576 | 2,063 |
One day old, and already a mathematician
In the last few years, researchers have become accomplished at finding out what goes on in the minds of tiny children, even new-born babies. This is done either by watching their gaze (looking away indicates familiarity or boredom, staring intently indicates surprise or interest... | <urn:uuid:67276069-5391-466a-a29c-d0aef002d5a8> | 3.390625 | 2,414 | Audio Transcript | Science & Tech. | 46.203252 | 2,064 |
2.3.3 A Penguin Foraging Simulation Game
Display materials for this Activity and tell students that they will be simulating the foraging behavior of penguins. Have them review the Adelie fact sheet, and discuss items which seem most of interest to your class, setting the foraging simulation in its real-world context. E... | <urn:uuid:49aab467-ec31-4b5f-954c-fbb23a424cb2> | 4.1875 | 629 | Tutorial | Science & Tech. | 44.535538 | 2,065 |
Since 1949, The California Cooperative Oceanic Fisheries Investigations (CalCOFI), a unique partnership among NOAA Fisheries Service, Scripps Institution of Oceanography and the California Department of Fish and Game, has been monitoring the California Current. The information is used to better understand the marine en... | <urn:uuid:bac6082c-1668-48d8-9211-5100e9e75d67> | 2.921875 | 240 | News (Org.) | Science & Tech. | 7.91476 | 2,066 |
Mar 22, 2010
Guest Blog - Electricity used when pulling weight
We don't typically post items related to science fairs (I get a lot of them - they're always enjoyable but most aren't related to NXT but just use an NXT robot to facilitate something else), but I thought this was an interesting project worth sharing, espec... | <urn:uuid:5342e887-c066-476e-ab35-241727f892d9> | 3.25 | 441 | Personal Blog | Science & Tech. | 65.792164 | 2,067 |
It would seem that a beast covered in fur would be opposed to the planet staying warm but I have to tell you guys, our fur ain’t made of Gore-Tex and Thinsulate – so I’m pretty stoked that a report out of London indicates that, like the Medieval Warm Period, our current climate situation is likely to be preventing a mi... | <urn:uuid:19ab1842-449a-47dd-b9e7-40b539f8313a> | 3.203125 | 291 | Personal Blog | Science & Tech. | 26.087515 | 2,068 |
European astronomers have discovered a planet with about the mass of the Earth orbiting a star in the Alpha Centauri system — the nearest to Earth. It is also the lightest exoplanet ever discovered around a star like the Sun. The planet was detected using the HARPS instrument on the 3.6-metre telescope at ESO’s La Sill... | <urn:uuid:298a2fc1-af6f-4a36-9a41-284615b59f8b> | 3.703125 | 404 | Content Listing | Science & Tech. | 55.665917 | 2,069 |
It is generally well known that partial differential equations that model fluid motion can exhibit “shock waves”. In fact, the subject I will write about today is generally presented as the canonical example for such behaviour in a first course in partial differential equations (while also introducing the method of cha... | <urn:uuid:4209c4ad-5e9c-46f7-a01a-fa522e4bc89a> | 3.46875 | 1,853 | Academic Writing | Science & Tech. | 44.357468 | 2,070 |
TAU Researcher Says Plants Can See, Smell, Feel, and Taste Monday, July 30, 2012
Unlocking the secrets of plant genetics could lead to breakthroughs in cancer research and food security
Increasingly, scientists are uncovering surprising biological connections between humans and other forms of life. Now a Tel Aviv Unive... | <urn:uuid:208b6dae-f468-4414-ad36-7127da6ab8e6> | 3.234375 | 947 | News (Org.) | Science & Tech. | 43.41751 | 2,071 |
Saturday 25 May
Honeycomb coral (Favites abdita)
What’s the World’s Favourite Species?Find out here.
Honeycomb coral fact file
- Find out more
- Print factsheet
Honeycomb coral description
Favites abdita is part of the Faviidae family, a common group of reef-building, ‘stony’ corals, characterised by a hard, calcareous... | <urn:uuid:422fa7e0-2562-4d35-8e0a-73305f8e7d82> | 3.859375 | 2,125 | Knowledge Article | Science & Tech. | 30.120427 | 2,072 |
New C-band scanning ARM precipitation radar on Manus Island
The ARM Climate Research Facility is a U.S. Department of Energy national user facility for the study of global climate change by the national and international research community. It consists of a network of highly instrumented ground stations; mobile and aer... | <urn:uuid:772ab524-2ea0-48b4-9ffc-035de85d9d24> | 2.546875 | 184 | About (Org.) | Science & Tech. | 23.794091 | 2,073 |
What is a black hole?
It is not really a hole, but a region in space with extremely strong gravity, so strong that not even light can escape. It is called black, because it gives off no light. It is impossible to observe or detect a black hole directly. Nobody has ever done this. But most astronomers believe they exist... | <urn:uuid:54a21c68-ad48-4c50-bfe1-56869bc7acdd> | 3.796875 | 226 | Knowledge Article | Science & Tech. | 73.180036 | 2,074 |
From Stone Age tools to the Large Hadron Collider, there’s always the potential for catastrophe when it comes to science. And what better way to get your middle schoolers psyched about scientific leaps than challenging them to avoid disaster? Each chapter of the book describes a scientific breakthrough and the conseque... | <urn:uuid:84cb6556-2116-4f61-9b09-b3ee7a157825> | 3.53125 | 153 | Product Page | Science & Tech. | 39.47 | 2,075 |
|Bialowieza primeval forest, Poland
The Bialowieza Forest (150 000 ha) is the last remaining fragment of primary deciduous and mixed forest in the European lowlands. It is the place where giant trees, not found anywhere else in Europe, exist. Many species which disappeared from other regions or are endangered are still... | <urn:uuid:1c3fb4f3-73b9-4cdb-8171-0e0b4f5823c5> | 3.5625 | 557 | Knowledge Article | Science & Tech. | 24.116401 | 2,076 |
If you have not yet read the radiation
primer, you are invited to do so.
David Groves, PhD, has
shown that the x-ray environment of space would quickly render any
photographs unusable. [Bennett and Percy, Dark Moon,
Dr. Groves' study contains a number of serious errors.
Although Dr. Groves gives figures for the x-ray d... | <urn:uuid:f59728a1-5317-40a2-ac76-b19d6db190ca> | 3.53125 | 1,146 | Knowledge Article | Science & Tech. | 50.820189 | 2,077 |
Scientists at the Norwegian Academy of Science and Letters have designed a new fuel cell inspired by the bronchial structure of the lungs. The new design requires less of the expensive platinum catalyst while also boosting efficiency.
The fuel cell features channels modeled after bronchial tubes that supply hydrogen an... | <urn:uuid:a732fca5-5812-4f1f-98c8-1741d62cf5a6> | 3.515625 | 169 | News (Org.) | Science & Tech. | 42.715 | 2,078 |
Solar timeSolar time is based on the idea that, when the sun reaches its highest point in the sky, it is noon. Apparent solar time is based on the apparent solar day, which is the interval between two successive returns of the sun to the local meridian. Solar time can be measured by a sundial.
The length of a solar day... | <urn:uuid:d988863f-31ba-466a-a988-82750186cf62> | 4.34375 | 250 | Knowledge Article | Science & Tech. | 61.171295 | 2,079 |
Study looks to nuclear energy as micro-scale fuel
A trio of UW-Madison engineers have a new scale in mind for nuclear energy: Rather than huge plants powering entire cities, they envision tiny batteries turning a single microscopic gear.
Extremely small amounts of radioactive material already perform functions in smoke... | <urn:uuid:16cc7273-8757-4e7c-9a84-41a73b28d140> | 3.453125 | 801 | News Article | Science & Tech. | 34.926793 | 2,080 |
The Future is Sustainability
The U.S. Environmental Protection Agency has commissioned a new National Research Council sustainability study.
On the second day in December the United States Environmental Protection Agency (EPA) commemorates four decades of work on behalf of the environment. On the final day of November ... | <urn:uuid:d7ad3123-5423-48a5-8709-7bb2fef49e5f> | 2.515625 | 314 | News (Org.) | Science & Tech. | 25.930302 | 2,081 |
Professor Robert Diaz of the Virginia Institute of Marine Science, College of William and Mary, is a co-editor of "Valuing the Ocean" a major new study by an international team of scientists and economists that attempts to measure the ocean's monetary value and to tally the costs and savings associated with human decis... | <urn:uuid:784d88e7-c77d-47a0-ab00-7ca6626b4030> | 3.0625 | 801 | News (Org.) | Science & Tech. | 27.607485 | 2,082 |
Astronomers Discover the Nearest Young Planet-Forming StarUniversity of Hawaiʻi
Institute for Astronomy
Karen Rehbock, (808) 956-6829
Institute for Astronomy
A team of scientists including University of Hawaii astronomers have found the nearest example of a young planet-forming star.
Using the telescopes on Mauna Kea, ... | <urn:uuid:c3072169-0dbd-4a91-bb53-e6cf34a8b288> | 3.34375 | 1,038 | News (Org.) | Science & Tech. | 50.45392 | 2,083 |
A teenager in Ukraine has unexpectedly helped scientists in Victoria, B.C., make a rare discovery.
Earlier this month, Kirill Dudko, 14, was watching a live stream of cameras on the ocean floor when he saw something unusual — a female elephant seal eating a hagfish.
Researcher Kim Juniper says an email from the teen in... | <urn:uuid:7ca74a6e-fe74-4fdb-a562-96b1296621f4> | 2.84375 | 1,063 | News Article | Science & Tech. | 45.203302 | 2,084 |
A recent study conducted for The IUCN Red List of Threatened Species™ has determined that 20% of hagfish species are at an elevated risk of extinction*. Scientists warn that this figure could be much higher.
The results of this research, carried out in association with Conservation International (CI), indicate that the... | <urn:uuid:5d31ee9c-44f7-4ff7-98fc-471b819d4712> | 3.6875 | 1,312 | News (Org.) | Science & Tech. | 25.117619 | 2,085 |
Rainfall and lack thereof has been a center of interest of late in Portland, with our 51 day rain streak coming to an end Monday. But there have been days when it's sprinkled or rained and yet did not get the elusive 0.01" needed to end our dry streak.
How does the rain gauge determine if the rain was enough to measure... | <urn:uuid:3d5714e1-2f1d-4ae0-849c-1aa45a189849> | 2.671875 | 769 | Personal Blog | Science & Tech. | 65.188932 | 2,086 |
"Invasive Plants are non-indigenous species or strains that become established in natural communities and wild areas, replacing native vegetation" (Invasive Plant Association of Wisconsin Web Site).
Why Should We Care about Invasive Plants?
Students, researchers, and the public come to the Lakeshore Nature Preserve to ... | <urn:uuid:2484279f-b174-4ec4-966a-b93e84afb60a> | 3.734375 | 656 | Knowledge Article | Science & Tech. | 29.730937 | 2,087 |
Getting Started: More on Xcode
Volume Number: 19 (2003)
Issue Number: 10
Column Tag: Programming
More on Xcode
by Dave Mark
Let's take the debugger for a spin. As we've done for the past few months, we'll work with the Sketch sample project. As a reminder, the Sketch files live in /Developer/Examples/AppKit/Sketch/. La... | <urn:uuid:ab25de27-c789-4098-9273-92ae491be8a2> | 2.546875 | 2,036 | Personal Blog | Software Dev. | 68.015764 | 2,088 |
This article is
- freely available
Efficacy of Treatments against Garlic Mustard (Alliaria petiolata) and Effects on Forest Understory Plant Diversity
School of Forest Resources and Environmental Science, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, USA
* Author to whom correspondence sho... | <urn:uuid:1e3b3f4f-b12d-43bb-847a-5b64afe72c11> | 2.8125 | 651 | Truncated | Science & Tech. | 34.617322 | 2,089 |
Optical Projection Tomography (OPT)
Optical Projection Tomography (OPT) is an optical imaging tool that creates high resolution 3D images of samples that are over ten times larger than samples imaged with other optical microscopic techniques (1). OPT images also have excellent contrast between a fluorescent region of i... | <urn:uuid:ebb70018-f9d5-4b58-a58e-63702d693038> | 3.0625 | 523 | Knowledge Article | Science & Tech. | 38.59051 | 2,090 |
Scientists led by University of Toronto’s Dr. Eugenia Kumacheva report they have discovered a way to predict the organization of nanoparticles. The approach is to treat them much the same as ensembles of molecules formed from standard chemical reactions. Observations found self-organization is an efficient strategy for... | <urn:uuid:85055f5d-6743-46ee-88e6-9bc1b04f88b3> | 2.875 | 115 | News Article | Science & Tech. | 25.826748 | 2,091 |
MTH209A Fundamentals of Mathematics I
Lead Faculty: Dr. Igor Ya Subbotin
A study of the real number system and its subsystems, ancient and modern numeration systems, problem-solving and simple number theory. Includes teaching materials and discussion of today's professional organizations. This is a content course, not ... | <urn:uuid:145bab8e-b8c8-4236-94c2-419042ce2477> | 3.046875 | 235 | Product Page | Science & Tech. | 11.3325 | 2,092 |
Code Listing 14: Query that demonstrates the LENGTH function
SQL> select first_name, LENGTH(first_name) length
2 from employee
3 order by length desc, first_name;
a query that uses the LENGTH function to
display the length of all FIRST_NAME values
from the EMPLOYEE table.
The online version of this article at bit.ly/
J... | <urn:uuid:8348f91f-5885-444b-96c5-03a146fbd09e> | 3.140625 | 1,047 | Tutorial | Software Dev. | 50.289344 | 2,093 |
And it's easier to teach one thing early on and expand that knowledge later. If you teach to much, they will not retain the information.
For example, on day one you show them comments.
"Comments begin with the hash (or octothorpe) character."
# I am a comment!
And leave the POD for a later day...
"Today we will learn a... | <urn:uuid:8b33e483-1700-4d71-85fa-27c1525a4eab> | 2.796875 | 429 | Comment Section | Software Dev. | 79.674353 | 2,094 |
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X-rays from peeling tape
This project is an exploration of X-ray production from pulling scotch tape. You may not believe this, but hear me out. If you peel tape off a reel in vacuum at a few cm per second rate, megahertz of 10-40 keV X-rays are produced. X-ray imaging is easy.
For inspiration see http://www.nature.com... | <urn:uuid:83ea2476-9bec-4995-96eb-8e5118d70589> | 2.78125 | 213 | Product Page | Science & Tech. | 76.176953 | 2,096 |
Before we begin, you should understand the basic PostgreSQL system architecture. Understanding how the parts of PostgreSQL interact will make the next chapter somewhat clearer. In database jargon, PostgreSQL uses a simple "process per-user" client/server model. A PostgreSQL session consists of the following cooperating... | <urn:uuid:06489ac7-42d6-446a-ae22-14007cd3ac4a> | 3.09375 | 521 | Documentation | Software Dev. | 38.693788 | 2,097 |
Understanding the Southern Ocean that rings Antarctica is critical to understanding the climate of the whole world, according to Jorge Sarmiento, Princeton's George J. Magee Professor of Geoscience and Geological Engineering and associated faculty member of the Princeton Environmental Institute. Sarmiento wants to depl... | <urn:uuid:ced2e5b7-05af-4fe0-b722-8832e81c8f19> | 3.0625 | 1,891 | Truncated | Science & Tech. | 38.915063 | 2,098 |
It’s again time for one of those puzzling results that if they turn out to be true, would have some very important implications and upset a lot of relatively established science. The big issue of course is the “if”. The case in question relates to some results published this week in Nature by Joanna Haigh and colleague... | <urn:uuid:4ff8cb2e-a2a5-47c8-81fe-97a9dc1a1edb> | 3.203125 | 895 | Personal Blog | Science & Tech. | 39.723666 | 2,099 |