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This is a tricky question to answer because weather, what you experience at your house right now, is not really that same thing as climate, the patterns of global air and sea movements that bring weather.
So milder winters can be a possibility in certain locations, as they will be exposed to an overall warming of the e... | <urn:uuid:46831906-816c-4216-bb15-f2eeb6252799> | 2.953125 | 383 | Q&A Forum | Science & Tech. | 43.250079 | 600 |
The Stormwater Ecological Enhancement Project (SEEP) began in 1995 as a take-home final exam for the course Ecosystems of Florida. The objective was to develop a management plan to enhance a stormwater retention basin located within the University of Florida Natural Area and Teaching Lab (NATL) for species diversity wh... | <urn:uuid:e885a217-6dff-4a4b-8bcb-7da91d0d9436> | 3.859375 | 1,407 | About (Org.) | Science & Tech. | 28.166124 | 601 |
Lightning Mapping Array (LMA)
The SPoRT program works with three total lightning networks. These include the Lightning Mapping Arrays in North Alabama and Washington, D.C. as well as the Lightning Detection and Ranging Network at the Kennedy Space Center. Each card represents one of these networks. A green card marked ... | <urn:uuid:6224495b-bf02-41e8-952b-958ff7bbdd7f> | 2.65625 | 1,873 | Knowledge Article | Science & Tech. | 38.788804 | 602 |
Ecologists are warning all citizens of earth… we are running out of natural resources!
According to top ecologists from around the world, from 1970 to 2008 the biological resources of our planet have shrunk by 68%.
And according to ecology experts in South America and the Australian state of Tasmania, in comparison to ... | <urn:uuid:7f2792bf-cce7-4faa-aa60-6928e02530d4> | 2.640625 | 385 | News Article | Science & Tech. | 52.462714 | 603 |
Most Active Stories
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- As Costa Concordia Sank, Newlyweds Allowed Others To Take Life Boats First
- Duke Professor Carries On Tradition Of Black R... | <urn:uuid:db574a39-af83-44c3-927a-04b7a934afb2> | 2.53125 | 262 | News Article | Science & Tech. | 33.883768 | 604 |
|Harnessing the Bacterial Power of Nanomagnets|
Nanometer-size magnets have wide-ranging uses, from directed cancer therapy and drug delivery systems to magnetic recording media and transducers. Such applications require the production of nanoparticles with well-controlled size and tunable magnetic properties. The synt... | <urn:uuid:b285fa31-c270-460d-bc87-d9f735919786> | 3.21875 | 1,132 | Academic Writing | Science & Tech. | 25.442132 | 605 |
Science Fair Project Encyclopedia
In differential geometry, a pseudo-Riemannian manifold is a smooth manifold equipped with a smooth, symmetric, (0,2) tensor which is nondegenerate at each point on the manifold. This tensor is called a pseudo-Riemannian metric or, simply, a (pseudo-)metric tensor.
The key difference be... | <urn:uuid:b9e1a8f8-67e4-46d6-add8-080dedfd2f12> | 3.625 | 644 | Knowledge Article | Science & Tech. | 25.882828 | 606 |
Endangered Species Get A Chilly (and Warm!) Reception In New York City
Samples from the American crocodile, the Channel Islands fox, and the Hawaiian gooseall endangered species studied within the U.S. National Parksare set to join neotropical butterflies, rare leeches, and snippets of sea stars in the American Museum ... | <urn:uuid:ffc7f0dc-ec65-4234-9448-eb54a3ae249d> | 2.984375 | 254 | News (Org.) | Science & Tech. | 25.219535 | 607 |
Formation of large (≃100 μm) ice crystals near the tropical tropopause
1NASA Ames Research Center, Moffett Field, CA, USA
2SPEC Inc., Boulder, CO, USA
3Centro de Ciencias de la Atmosfera, Universidad Nacional Autonoma de Mexico, Circuito Exterior, Mexico
4Harvard University, Cambridge, MA, USA
5Colorado Research Associ... | <urn:uuid:d0bb34a9-013e-4e5e-b816-bf8fee515d52> | 2.796875 | 676 | Academic Writing | Science & Tech. | 26.105273 | 608 |
WEST LAFAYETTE, Ind. - Even large amounts of manufactured nanoparticles, also known as Buckyballs, don't faze microscopic organisms that are charged with cleaning up the environment, according to Purdue University researchers.
In the first published study to examine Buckyball toxicity on microbes that break down organi... | <urn:uuid:a45b666e-60e3-4153-8529-a347a2bc3557> | 3.0625 | 409 | News Article | Science & Tech. | 22.997779 | 609 |
Questions: G to A and C to T substitutions, is this a rule ?
zxiong at arizvm1.ccit.arizona.edu
Mon Apr 11 11:59:05 EST 1994
Being not familiar with molecular evolution. I have been troubled with some of
my data in RNA virus sequence. We are working on a small RNA virus and nearly
complete the sequence of the viral RNA... | <urn:uuid:46fef4e6-8218-47b0-a114-75e38b50bf1a> | 2.875 | 327 | Q&A Forum | Science & Tech. | 59.739091 | 610 |
Paul Painter¹ and Lucas McConnell²
¹Materials Science and Engineering and The Energy Institute
²Renewergy Corporation, Erie PA.
Presently, biofuels in this country usually means one of two things, ethanol (in the U.S. principally produced from corn) or biodiesel (largely from oilseeds or yellow grease). However, large-... | <urn:uuid:5808c6cc-13e7-4e25-8330-97fe63475956> | 3.625 | 446 | Academic Writing | Science & Tech. | 21.524274 | 611 |
For years now, we have been deluged with the news that the earth’s oceans are warming as a result of atmospheric changes due to the combustion of fossil fuels.
Typical of these was a 2005 story titled “Where’s The Heat? Think Deep Blue,” from United Press International, describing a recent paper in Science by NASA clim... | <urn:uuid:01ae20bb-ca76-4d9e-9014-6c7d5ee35304> | 3.578125 | 855 | Nonfiction Writing | Science & Tech. | 45.291555 | 612 |
Roy J. Plunkett
Roy J. Plunkett with a cable insulated with Teflon and a Teflon-coated muffin tin. Gift of Roy Plunkett. Courtesy Hagley Museum and Library.
From the 1930s to the present, beginning with neoprene and nylon, the American chemical industry has introduced a cornucopia of polymers to the consumer. Teflon, d... | <urn:uuid:0b8f571c-a249-4c01-9b3a-6ebe34815c6d> | 3.3125 | 683 | Knowledge Article | Science & Tech. | 37.662211 | 613 |
Over the past 10 years, nitrogen concentration trends are downward at about half (16 out of 33) monitoring sites within the Bay watershed. The trend results indicate that in many locations, management actions, such as improved wastewater treatment and nonpoint-source pollution controls (i.e. urban stormwater runoff and... | <urn:uuid:00a88782-e239-4494-a633-c0c9ea1952a7> | 3.328125 | 183 | Truncated | Science & Tech. | 45.790695 | 614 |
Now that you're comfortable using the MySQL client tools to manipulate data in the database, you can begin using PHP to display and modify data from the database. PHP has standard functions for working with the database.
First, we're going to discuss PHPs built-in database functions. We'll also show you how to use the ... | <urn:uuid:c21bbd34-5b0b-4017-90f1-4b9d4a0ca4df> | 3.140625 | 343 | Tutorial | Software Dev. | 52.928786 | 615 |
In 1811, Joseph Fourier, the 43-year-old prefect of the French district of Isere, entered a competition in heat research sponsored by the French Academy of Sciences. The paper he submitted described a novel analytical technique that we today call the Fourier transform, and it won the competition; but the prize jury dec... | <urn:uuid:0b27cdae-7df5-46b7-81b6-0cd8f59a6b4d> | 3.59375 | 1,010 | Nonfiction Writing | Science & Tech. | 44.473116 | 616 |
Sea-levels are rising unevenly around the world, with Pacific countries in particular suffering significant increases over the past two decades, according to accurate new satellite data.
On average, global sea-levels have been rising at about three millimeters (mm) a year, however, this masks large differences between ... | <urn:uuid:6d728551-c8bc-4464-a2ba-460b4a692d95> | 3.6875 | 325 | News Article | Science & Tech. | 32.980934 | 617 |
Some elements of a window interface contain collections of items, for example rows of buttons, lists of filenames, and groups of menu items. Such elements are known in the CAPI as collections .
In most collections, items may be selected by the user -- for example, a row of buttons. Collections whose items can be select... | <urn:uuid:7221b702-b5e1-48e6-bcba-348b013f6d0f> | 3.703125 | 304 | Documentation | Software Dev. | 45.642056 | 618 |
The First (and Last) Voyage to the Bottom of the Sea
A half-century ago, humanity arrived somewhere no one had ever gone before the deepest place on Earth.
Before the Apollo missions landed men on the moon, the U.S. Navy dove to the bottom of the sea the Challenger Deep in the Mariana Trench, some 35,797 feet (10,911 m... | <urn:uuid:1cfec21c-f34f-4a68-b967-6109f33f8afc> | 3.9375 | 889 | News Article | Science & Tech. | 57.300443 | 619 |
Why Does Copper Turn Green?
Copper turns green because of chemical reactions with the elements.
For the same reason that iron rusts.
Just as iron that is left unprotected in open air will corrode and form a flaky orange-red outer layer, copper that is exposed to the elements undergoes a series of chemical reactions tha... | <urn:uuid:74fec3df-1ff7-4026-9308-fe6758e0d9e2> | 3.546875 | 169 | Knowledge Article | Science & Tech. | 51.391467 | 620 |
Published in Lunar and Planetary Science XXVII, pp. 1183-1184, LPI, Houston.
Introduction: Crustal processes and reactions during hydrothermal and biogenic activity result in extreme degrees of sulfur isotopic fractionation on Earth. For example, delta 34S in terrestrial sulfides ranges from -70 to +70 on Earth . In co... | <urn:uuid:bccae671-f765-40b4-9299-ad77496383ea> | 3.390625 | 2,578 | Academic Writing | Science & Tech. | 44.855372 | 621 |
Functions in Lisp
|Column Tag:||Lisp Listener
"Functions in Lisp"
By Andy Cohen, Human Factors Engineering, Hughes Aircraft, MacTutor Contributing Editor
As you may recall from the first installment of the Lisp Listener, a procedure is a description of an action or computation. A primitive is a predefined or "builtin" ... | <urn:uuid:9ed9dd59-1ad8-422d-be1a-e1d062d262b6> | 3.53125 | 2,807 | Documentation | Software Dev. | 54.579133 | 622 |
Interactive Java Tutorials
Refractive Index Determination
Oblique illumination is sometimes utilized as an alternative to the Becke line test to determine whether the refractive index of a specimen is higher or lower than that of the surrounding medium. This interactive tutorial explores how variations in the refractiv... | <urn:uuid:34972ce5-3120-43af-a5f0-66855b128dd7> | 3.71875 | 813 | Tutorial | Science & Tech. | 37.144765 | 623 |
How do you picture climate change? Aside from the warming part, another problem lies in the future: rising sea levels, which means a higher risk of damaging floods in coastal communities.
According to Climate Central’s recent Surging Seas report, sea levels are rising fast. Since 1880, they have increased by about eigh... | <urn:uuid:bb721fc4-ec4a-461b-8f94-a6d17ca13520> | 3.65625 | 550 | News Article | Science & Tech. | 47.16697 | 624 |
A tree-killing invasive insect, the hemlock woolly adelgid (HWA), was found for the first time in Indiana on a landscape tree in LaPorte County in mid-April.
Since its introduction to the Eastern United States in the mid-1920s, the HWA has infested about half the native range of Eastern hemlock. In certain areas of the... | <urn:uuid:41c9855e-64d1-4ba6-9dee-73b103d70bef> | 3.171875 | 947 | Knowledge Article | Science & Tech. | 40.973803 | 625 |
SAN FRANCISCO — A tsunami-producing fault in Lake Tahoe is overdue for another earthquake, scientists said here Tuesday at the annual meeting of the American Geophysical Union.
The West Tahoe Fault is capable of producing a magnitude-7.3 earthquake and tsunamis up to 30 feet (10 meters) high in the clear blue lake, whe... | <urn:uuid:546ff675-1a22-4367-959b-435520e9d5ab> | 2.953125 | 719 | News Article | Science & Tech. | 43.044083 | 626 |
One of the most important information sources for stock assessments are living marine resource surveys. GIS is used for planning these surveys and for interpreting results. Surveys and biological studies provide data on species distribution, life history, migration patterns, diet and behavior that are fundamental to re... | <urn:uuid:96e4b5bf-20bc-4068-9f0c-3a76b15d6e00> | 2.53125 | 113 | Knowledge Article | Science & Tech. | 22.802632 | 627 |
The Missing Key To Physics, ESP, Intelligence, Aging...
As you know the discoveries of Nikola Tesla have been purposefully minimized in the media, college curriculums, and in the history books. Well, there was another absolutely brilliant scientist whose discoveries are on a par with Tesla's, but his work was very dili... | <urn:uuid:a6a92512-456a-44ea-9720-ba5675179fcd> | 2.625 | 411 | Comment Section | Science & Tech. | 46.155437 | 628 |
Solar electrical power is the particular conversion of sunshine into electricity, either straight making use of photovoltaics (PV), and / or indirectly utilizing concentrated solar electric power (CSP).
Commercial concentrated solar force vegetation were 1st developed within the 1980s. The actual 354 MW SEGS CSP instal... | <urn:uuid:219a7c65-e194-42a6-a8bf-51873343b562> | 3.671875 | 674 | Knowledge Article | Science & Tech. | 19.299651 | 629 |
Trends in Amphibian Occupancy in the United States
Michael J. Adams, David A. W. Miller, Erin Muths, Paul Stephen Corn, Evan H. Campbell Grant, Larissa L. Bailey, Gary M. Fellers, Robert N. Fisher, Walter J. Sadinski, Hardin Waddle, Susan C. Walls
Public Library of Science ONE
22 May 2012.
What we found
Based on sampli... | <urn:uuid:e2eb29c5-8df2-4b84-849c-9fb426183f45> | 2.71875 | 521 | News (Org.) | Science & Tech. | 46.174955 | 630 |
Photonics: Sensing on the way
Published online 01 August 2012
Hollow optical fibers containing light-emitting liquids hold big promises for biological sensing applications
Schematic illustration of a hollow fiber. The chemiluminescent liquid in the core (yellow) is guided through the fiber, also with help of further ho... | <urn:uuid:512b4ec2-ba1a-4c6f-8ec8-d09831c1eed6> | 3.125 | 637 | Academic Writing | Science & Tech. | 32.100344 | 631 |
Chemical technology news from across RSC Publishing.
Nanofactories monitor bacteria communication
03 March 2010
Scientists in the US have developed a microdevice that investigates how bacteria communicate with each other to enhance their resistance to drugs.
Bacteria communicate in a process called quorum sensing, in w... | <urn:uuid:eedbf89b-7026-4cd1-989f-3214da02a91c> | 3.265625 | 583 | News (Org.) | Science & Tech. | 19.472217 | 632 |
July 26, 2012 Excitation of neurons depends on the selected influx of certain ions, namely sodium, calcium and potassium through specific channels. Obviously, these channels were crucial for the evolution of nervous systems in animals. How such channels could have evolved their selectivity has been a puzzle until now.
... | <urn:uuid:67baeb57-a18c-4b01-8bb0-8558a00d3c52> | 3.609375 | 531 | News Article | Science & Tech. | 20.43233 | 633 |
By John Fleck
Web edition: February 12, 2010 Print edition: February 27, 2010; Vol.177 #5 (p. 30)
Buy this book
Young adults can learn how scientists use tree rings to document climate change.University of New Mexico Press, 2009, 91 p., $21.95.
Please alert Science News to any inappropriate posts by clicking the REPORT... | <urn:uuid:d86faf02-af22-4034-9716-90c2739df0e6> | 3.125 | 136 | Truncated | Science & Tech. | 80.627273 | 634 |
Hot Sites and Cool Books
Recommended Web sites:
Information about the 2006 dinosaur dig at the 5E Ranch can be found at www.montanadinosaurdigs.com/sauro.htm (Judith River Dinosaur Institute).
Perkins, Sid. 2006. Bone hunt. Science News 170(Aug. 26):138-140. Available at http://www.sciencenews.org/articles/20060826/bob... | <urn:uuid:2adbea19-6442-400d-895e-a52d103f9c60> | 2.953125 | 780 | Content Listing | Science & Tech. | 50.30494 | 635 |
In A.D. 79 Mount Vesuvius erupted, annihilating the cities of Pompeii and Herculaneum and killing thousands who did not evacuate in time. To avert a similar fate for present-day Naples, which lies six miles west of the still active Vesuvius, as well as for the cities near volatile Mount Etna in Sicily, a novel laser sy... | <urn:uuid:9309d171-e9f0-44a8-9de3-926e353cd4e3> | 3.90625 | 748 | Truncated | Science & Tech. | 40.471455 | 636 |
An instrument to measure the altitude of an object above a fixed level.Generally, mean sea level is used for the reference level.
Mid-level cloud (bases generally 2000 - 8000m), made up of grey,puffy masses, sometimes appearing in parallel waves or bands. An indicatorof mid-level instability. Altocumulus can take on va... | <urn:uuid:1f2052ca-130e-43ae-ae93-421e6e25982d> | 3.15625 | 366 | Structured Data | Science & Tech. | 24.921433 | 637 |
Zooplankton community dynamics
Ballast water transport as a taxonomic and numeric 'filter'
Zooplankton data collected from ballast tanks at the beginning and end of 25 voyages showed an overall decline in total zooplankton abundance during a voyage. Mortality within tanks could be caused by a number of factors, includi... | <urn:uuid:92e01543-dc7c-4c93-93c8-34dc4304db73> | 3.484375 | 412 | Academic Writing | Science & Tech. | 10.170118 | 638 |
High energy mystery lurks at the galactic centre
PARTICLE PHYSICS AND ASTRONOMY RESEARCH COUNCIL
Posted: September 22, 2004
A mystery lurking at the centre of our own Milky Way galaxy - an object radiating high-energy gamma rays - has been detected by a team of UK astronomers working with international partners. Their ... | <urn:uuid:9273b4cc-460c-4f23-b257-27a7da9567ba> | 2.90625 | 1,086 | News Article | Science & Tech. | 54.462063 | 639 |
Home › SparkNotes › Chemistry Study Guides › Review of Gases › Gases Review Test
don't seem to have. Please try a different browser.
Scroll through the page to review your answers. The correct answer is
Your incorrect answers (if any) are highlighted in
If you'd like to take the test over again, click the reset button ... | <urn:uuid:1475843b-afe3-4a21-b409-9b1d07231153> | 3.34375 | 1,320 | Content Listing | Science & Tech. | 65.666305 | 640 |
All procedures in the Verilog HDL are specified within one of the following four statements:
-- initial construct
-- always construct
The initial and always constructs are enabled at the beginning of a simulation. The initial construct shall execute only once and its activity shall cease when the statement has finished... | <urn:uuid:2dc62b9f-398e-47e8-9d87-d0375daf0011> | 3 | 806 | Documentation | Software Dev. | 42.033475 | 641 |
SHEFFIELD, U.K. -- An international team of researchers, led by the University of Sheffield, has demonstrated how Atlantic cod responded to past natural climate extremes. The new research could help in determining cods vulnerability to future global warming.
With fishing pressures high and stock size low, there is alre... | <urn:uuid:610c68ce-47b9-4ec2-bacd-c261cc5ce47a> | 3.828125 | 572 | News Article | Science & Tech. | 22.125544 | 642 |
Wildlife you see in a national park or other reserved area don't know about the park boundary. Bobcat, martens, mink, and moose need different types of living space and habitat. Development outside the park affects their ability to inhabit the park.
Brief review of bat research in the San Francisco Bay area and souther... | <urn:uuid:4448345c-0895-4322-b597-44994e0b8dfa> | 3.3125 | 182 | Content Listing | Science & Tech. | 24.002095 | 643 |
Previous | Session 117 | Next | Author Index | Block Schedule
S. J. Edberg (JPL/Caltech)
This poster serves to introduce a series of posters discussing Space Interferometry Mission PlanetQuest (SIM PlanetQuest) science prospects and plans across a wide range of astrophysics.
SIM is being designed and built for NASA's N... | <urn:uuid:25c234cb-e520-44ac-8580-df4a7639b976> | 2.6875 | 524 | News (Org.) | Science & Tech. | 34.123846 | 644 |
Manoj Nair of the National Oceanic and Atmospheric Administration has devised a new possible method of detecting a deadly tsuami long before the wave crests to dangerous heights. And, in a bit of good news, much of it is already in place.
In a new study in next month’s Earth, Planets, and Space, Nair modeled the massiv... | <urn:uuid:d92d22cd-5a95-40a9-8916-07fba0df37b8> | 3.515625 | 428 | News Article | Science & Tech. | 42.977567 | 645 |
The Lake Tahoe area on the California-Nevada border can be appreciated from a variety of perspectives: Some people focus on the stunningly beautiful alpine lake nestled in the Sierra Nevada range, while others see it as a mecca for skiers and winter sports enthusiasts. When climate scientists look around, though, they ... | <urn:uuid:c3b8b37a-b1f0-4749-b688-1d7e5bfb16b9> | 3.859375 | 592 | Personal Blog | Science & Tech. | 34.263168 | 646 |
Last Wednesday the National Academy of Sciences held a press conference in Washington, DC, to introduce its newly completed report on priorities for the coming decade in solar and space physics. Daniel Baker of the University of Colorado chaired the committee that wrote the report. Thomas Zurbuchen of the University of... | <urn:uuid:dfeab920-d146-490d-b528-0a5dc3071873> | 2.96875 | 2,306 | Personal Blog | Science & Tech. | 27.110422 | 647 |
Climate Action for Nature
"It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change."
- Charles Darwin
ECCo scientists recognize that climate change has the potential to jeopardize much of the regional conservation and restoration w... | <urn:uuid:d4a62a0b-82b9-44ee-bcbf-5980863b4df5> | 2.890625 | 356 | About (Org.) | Science & Tech. | 11.40843 | 648 |
There are nearly two million known species on the planet. But many of those won't be around much longer; one out of every eight known bird species, one in four mammal species, and one in three amphibian species are at risk for extinction, according to the World Conservation Union (IUCN), which maintains the Red List, a... | <urn:uuid:246be445-3dd9-4c3d-a6e4-a6d193647b45> | 3.65625 | 741 | Content Listing | Science & Tech. | 43.885858 | 649 |
Light Scattering System
NanoBiophysics Core Facility has a full set of Light Scattering equipment from Wyatt including Multiangle Light Scattering (MALS) device, Dynamic Light Scattering (DLS) device, and HPLC system (Agilent) linked to MALS.
Light scattering is a non-invasive technique for characterizing macromolecule... | <urn:uuid:383315da-e20e-4bfd-8cad-7c0c4da0230a> | 2.703125 | 507 | Product Page | Science & Tech. | 14.896778 | 650 |
A semi-arid climate or steppe climate describes climatic regions that receive precipitation below potential evapotranspiration, but not extremely. A more precise definition is given by the Köppen climate classification that treats steppe climates (BSk and BSh) as intermediates between desert climates (BW) and humid cli... | <urn:uuid:85784f22-cf21-4032-ad5f-e40defbe8eb2> | 3.859375 | 1,215 | Knowledge Article | Science & Tech. | 22.964 | 651 |
Photo: Scott Zona
There is nothing more emblematic of spring and summer than flowers, but why do plants have flowers, and how did they evolve?
Botanists know that flowering plants, that is, plants that reproduce by producing seeds, evolved from non-flowering plants. According to evolutionary theory, nature would have s... | <urn:uuid:8a9b6621-ec71-444c-9309-238303e6477a> | 4.28125 | 359 | News Article | Science & Tech. | 39.875088 | 652 |
More sharks on the Red List – Expert workshop releases findings on the status of North and Central American shark and ray populations
25 June 2004 | News story
Gland, Switzerland, 25 June 2004 (IUCN - The World Conservation Union). The number of species of sharks and rays on the IUCN Red List of Threatened Species is s... | <urn:uuid:f3b6f9fe-b3b8-488f-9341-7eccf978e15d> | 3 | 821 | News (Org.) | Science & Tech. | 31.457595 | 653 |
Mediterranean Seagrass Meadows: Resilience and Contribution to Climate Change Mitigation
16 May 2012 | Media advisory
This new study will be presented in Málaga during the Seagrass meadows event in Spain and provides an insight into their potential for carbon sequestration at a time when carbon credit schemes are becom... | <urn:uuid:63b81f42-69f6-4037-a213-a273538def59> | 2.921875 | 583 | News (Org.) | Science & Tech. | 9.205126 | 654 |
Ratio and Proportion
Date: 7/4/96 at 19:21:20 From: Anonymous Subject: Ratio and Proportion Six men can complete a piece of work in one day while 5 boys would take 2 days to complete the same piece of job. 44 men can build a tower in 5 days; how long will 40 men and 80 boys take to build the tower?
Date: 7/5/96 at 8:37... | <urn:uuid:8ac02b37-5315-4d51-885d-b7c4e97f75ac> | 2.765625 | 240 | Comment Section | Science & Tech. | 94.315957 | 655 |
Sunlight is Earth’s most abundant energy source and is delivered everywhere free of charge. Yet direct use of solar energy—that is, harnessing light’s energy content immediately rather than indirectly in fossil fuels or wind power—makes only a small contribution to humanity’s energy supply. In 2008, about 0.1% of the t... | <urn:uuid:515d3239-de8f-40e7-adc5-50e951db0245> | 4.09375 | 508 | Knowledge Article | Science & Tech. | 28.740823 | 656 |
NASA has released a computer visualization project called "Perpetual Ocean" that presents a data-created time lapse of the Earth's ocean and sea surface currents over a two-year period.
The animation (see below) shows the globe slowly spinning as white swirls curl and move in the water around landmasses. It looks as if... | <urn:uuid:2f1474e5-3ee2-4c33-a54a-89813f786382> | 4.03125 | 145 | News Article | Science & Tech. | 44.758672 | 657 |
Why 2 high tides?
Name: paul dickerson
Date: 1993 - 1999
It makes sense to me why there is a high tide at or about noon during
new moon, but why is there a high tide at or about mid-night as well?
The reason is very simple, though it takes a bit of thinking to hit the
right direction. Consider the Earth-Moon system, an... | <urn:uuid:179fc92f-8cea-49c6-b6b4-23ed568b253e> | 2.6875 | 174 | Q&A Forum | Science & Tech. | 64.555083 | 658 |
When experiencing alpha decay, atoms shed alpha particles made of 2 protons and 2 neutrons. Why can't we have other types of particles made of more or less protons?
The reason why alpha particles heavily dominate as the proton-neutron mix most likely to be emitted from most (not all!) radioactive components is the extr... | <urn:uuid:2d293bb8-356c-42d9-9b1f-f5c7779b9986> | 3.390625 | 505 | Q&A Forum | Science & Tech. | 48.759948 | 659 |
|Mon March 24, 1969 02:32PM (PST)|
This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Mon March 24, 1969 02:32PM (PST)
Mon March 24, 1969 22:32 (GMT)
30.1 km ( 18.7 mi) ENE ( 67. azimuth) from Hanford-300, WA
31.7 km ( 19.7 mi) SSE ( 151. azimuth) from Othello, WA
33.... | <urn:uuid:04b85eb8-944d-4176-8e7a-b2e53c9f1916> | 2.890625 | 829 | Structured Data | Science & Tech. | 61.790159 | 660 |
Interpreter for Zoom Language
Zoom language is new language developed at DePaul University by Dr. Jia. ZOOM
stands for Z-based Object Oriented Modeling notation. It's made up of 3
different parts: zoom specification notations ZOOM-S, zoom design notation
ZOOM-D and zoom implementation language ZOOM-I. The syntax of ZOO... | <urn:uuid:6df337f0-b74a-4b93-a6ac-81d0729d798c> | 2.765625 | 433 | Personal Blog | Software Dev. | 46.991907 | 661 |
The scene: Scientist Jian Chen adjusts optics mounted for an experiment at one of several PULSE laser laboratories housed at SLAC. (PULSE is a joint SLAC/Stanford University laser science institute.)
In this experiment, a small fleck of sample material is held in a special “diamond anvil cell” and torqued to pressures ... | <urn:uuid:aa900d17-ee05-43a1-9828-f3db9c23769c> | 2.90625 | 301 | Personal Blog | Science & Tech. | 49.949323 | 662 |
The "Methane" experiment was proposed during the TransCom 2008 meeting in Utrecht. The first protocol was discussed during the post-ICDC8 TransCom meeting in Jena, followed by the final protocol in 2010. Since then 16 models or model variants have performed the simulations. Previous TransCom experiments focused on chem... | <urn:uuid:fafff650-2a32-4b22-b6ba-3ad9c568a763> | 2.796875 | 742 | Knowledge Article | Science & Tech. | 56.851609 | 663 |
Tri States Public Radio Staff
Fri September 7, 2012
Volcano Shoots Geyser Of Water Up Into Space
Originally published on Tue October 9, 2012 10:53 am
What we have here is a moon — a small one (slightly wider than the state of Arizona) — circling Saturn.
If you look closely, you will see a small splay of light at its to... | <urn:uuid:36b9fd02-b922-4e8c-bf6d-7649f1bf6e32> | 3.46875 | 802 | News Article | Science & Tech. | 62.110823 | 664 |
Samarium: the essentials
Samarium has a bright silver lustre and is reasonably stable in air. It ignites in air at 150°C. It is a rare earth metal. It is found with other rare earth elements in minerals including monazite and bastnaesite and is used in electronics industries.
Samarium: historical information
Samarium w... | <urn:uuid:03679806-1247-4d30-82a5-5ab86e77b708> | 3.34375 | 560 | Knowledge Article | Science & Tech. | 23.493616 | 665 |
Plants to be Studied:
Tomato, especially Solanum lycopersicum and Solanum pennellii.
- Project Objectives:
Plants acquire the bulk of their energy from light capture by leaves, and leaf shape has direct consequences on the efficiency of light capture and photosynthetic carbon fixation. As a result, leaf shape must be o... | <urn:uuid:9d8cac09-f3e0-48a5-841c-5bd3bb77ec82> | 3.15625 | 382 | Academic Writing | Science & Tech. | 6.753176 | 666 |
Early galaxies full of cosmic dust
Space dust Astronomers have found dusty giant galaxies were already in existence 13 billion years ago, far earlier than previously thought.
The discovery reported in the Astrophysical Journal, means planets, which are made from coalescing dust particles, may also have already formed t... | <urn:uuid:d1f94744-89f3-420a-93aa-2d160fb48f7b> | 4.0625 | 588 | News Article | Science & Tech. | 44.205292 | 667 |
Science subject and location tags
Articles, documents and multimedia from ABC Science
Monday, 11 March 2013
The ability of ecosystems to adapt to climate change has been put under the microscope and the news is good for tuna and tropical rainforests.
Wednesday, 6 June 2012
Consumers in developed countries are adding si... | <urn:uuid:a2c99965-ac1b-47b7-a078-ded093323589> | 2.578125 | 602 | Content Listing | Science & Tech. | 32.793435 | 668 |
Mlive: Ann Arbor could see a Geminid meteor shower Thursday night
A rare, clear night sky in the Ann Arbor area Thursday night may increase the visibility of the expected Geminid meteor shower, MLive.com reports.
The Geminid shower is expected to be visible between 11 p.m. and 2 a.m., according to NASA website. MLive.c... | <urn:uuid:de541129-23b1-4631-93dd-33e420653c3e> | 2.59375 | 266 | News Article | Science & Tech. | 69.314308 | 669 |
Oxygen Fuels the Fires of Time
Scientists from The Field Museum in Chicago and Royal Holloway University of London, publishing their results this week in the journal Nature Geoscience, have shown that the amount of charcoal preserved in ancient peat bogs, now coal, gives a measure of how much oxygen there was in the pa... | <urn:uuid:b82f6dde-52a7-4c70-a146-bfaf0d7d1e3b> | 4 | 598 | Knowledge Article | Science & Tech. | 28.329925 | 670 |
If he casts the right fly, an angler can catch some really big fish. Scientists are the same way, needing the right type of microscope to visualize nature's smallest molecules and atoms. Now, researchers are redesigning their light microscopes to catch a glimpse of some of the most miniscule molecules, those that make ... | <urn:uuid:321fbaa9-de0c-4c46-9752-a86ab7c290c2> | 3.53125 | 1,712 | Knowledge Article | Science & Tech. | 35.103599 | 671 |
Phytoplankton Under Ice
Beneath the Arctic ice—over 12 feet deep in some areas—lies a dark, cold and lifeless sea. Or so we thought.
“If someone had asked me before the expedition whether we would see under-ice blooms, I would have told them it was impossible,” says Arrigo. “This discovery was a complete surprise.”
The... | <urn:uuid:dda98bee-cbfe-4019-acc9-adace79b16b1> | 4.15625 | 565 | Knowledge Article | Science & Tech. | 47.431837 | 672 |
Per Square Meter
Warm-up: Relationships in Ecosystems (10 minutes)
1. Begin this lesson by presenting the powerpoint, “Per Square Meter”.
2. After the presentation, ask students to think of animal relationships that correspond to each of the following types; Competition, Predation, Parasitism, and Mutualism
a. For exam... | <urn:uuid:c76adb43-fdc6-442d-882e-b7781f7e7d83> | 3.921875 | 1,207 | Tutorial | Science & Tech. | 52.925334 | 673 |
Dinosaurs' active lifestyles suggest they were warm-blooded
H. Pontzer, V. Allen, J.R. Hutchinson/PLoS ONE
Whether dinosaurs were warm-blooded or cold-blooded has been a long-standing question in paleobiology. Now, new research on how two-legged dinosaurs walked and ran adds new evidence to the argument for warm-bloode... | <urn:uuid:a459a3fc-e2ca-4318-b2d2-359bd270ce2f> | 4.40625 | 1,101 | Truncated | Science & Tech. | 24.63094 | 674 |
A User-interface for Proofs and Certified Software
by Janet Bertot, Yves Bertot, Yann Coscoy, Healfdene Goguen and Francis Montagnac
By making it possible to express the properties of procedures and functions, proofs assistants can be used to help develop certified software. However, these proof assistants are often co... | <urn:uuid:a67667a3-9a44-48a3-9476-dff878b94636> | 2.515625 | 870 | Academic Writing | Software Dev. | 23.299594 | 675 |
What are tachyons?
Tachyons are hypothetical particles that can only travel faster than the speed of light. As you probably know, objects with a real number for mass can never travel at the speed of light because of Einstein's theory of relativity. As a consequence of this theory, as a objects velocity increases its ma... | <urn:uuid:0a836341-2dd7-41a3-aa34-9109e795e68e> | 3.828125 | 482 | Q&A Forum | Science & Tech. | 58.802976 | 676 |
No one knows how much warming is "safe". What we do know is that climate change is already harming people and ecosystems. Its reality can be seen in melting glaciers, disintegrating polar ice, thawing permafrost, changing monsoon patterns, rising sea levels, changing ecosystems and fatal heat waves.
Scientists are not ... | <urn:uuid:93f23c86-06b2-4c01-8d4e-f0341afe508c> | 3.75 | 324 | Knowledge Article | Science & Tech. | 31.269855 | 677 |
Do Radioisotope Clocks Need Repair? Testing the Assumptions of Isochron Dating Using K-Ar, Rb-Sr, Sm-Nd, and Pb-Pb Isotopes
by Steven A. Austin, Ph.D.
RATE II: Radioisotopes and the Age of The Earth: Results of a Young-Earth Creationist Research Initiative, (Volume II), L. Vardiman et al., eds. (San Diego, CA: Institut... | <urn:uuid:22201536-2f4b-440e-b7c3-52532dee3e4e> | 2.90625 | 877 | Academic Writing | Science & Tech. | 34.373456 | 678 |
The principal purpose of this project is to demonstrate the feasibility of instrumenting heavily icecovered fjords to obtain real-time data of the upper ocean.
Greenland's ice-covered fjords are the connections between the Greenland Ice Sheet and the open ocean. These dynamic environments enable access of warm ocean wa... | <urn:uuid:7e5d03a3-1703-4c51-b973-7b9dbb1300f8> | 3.4375 | 852 | Academic Writing | Science & Tech. | 40.168238 | 679 |
A bundle of recent genetic studies have suggested modern humans had sex with Neanderthals thousands of years ago when the two populations roamed the planet alongside each other. However, the bones left behind by the two species don't bear any obvious traces of interbreeding, and a new study of monkeys in Mexico shows w... | <urn:uuid:490085d7-698f-48cf-9420-4e97837c7072> | 3.671875 | 593 | News Article | Science & Tech. | 26.23494 | 680 |
because accumulation exceeds ablation in a location. This
accumulation zone after it thickens to more than 30 m begins to
For a glacier to survive it must have a consistent and
persistent accumulation zone.
To diagnose a glacier
that is disappearing look for
1) Emergence of rock
outcrops in upper region of the glacier.... | <urn:uuid:f43774c9-7747-41d3-8bfc-66df060ce147> | 4.09375 | 697 | Academic Writing | Science & Tech. | 35.405603 | 681 |
Information found on this page has been archived and is for reference, research or recordkeeping purposes. Please visit NRC's new site for the most recent information.
Information identified as archived on the Web is for reference, research or recordkeeping purposes. It has not been altered or updated after the date of... | <urn:uuid:58cd456e-130d-479b-b5fd-0302bc9fa692> | 3.515625 | 219 | Knowledge Article | Science & Tech. | 35.468882 | 682 |
Clouds and cosmos
J'ai découvert par hazard les travaux de Henrik Svensmark sur le processus de formation des nuages.
Ces derniers remettaient en cause les thèses défendues par les tenants du réchauffement climatique du aux activités humaines. En effectuant quelques recherches sur Internet j'ai pu mesurer l'incroyable ... | <urn:uuid:57ca599a-245e-40c8-95d4-d743e3a8f855> | 2.78125 | 1,298 | Personal Blog | Science & Tech. | 43.698981 | 683 |
Synthetic Biology: TUM Researchers Develop Novel Kind Of Fluorescent Protein
Proteins are the most important functional biomolecules in nature with numerous applications in life science research, biotechnology and medicine. So how can they be modified in the most effective way to attain certain desired properties? In t... | <urn:uuid:d3ef8be8-d68b-4d8f-bea4-d1248144d3a5> | 3.390625 | 746 | News Article | Science & Tech. | 13.356932 | 684 |
Bill Scanlon, NREL
January 02, 2013 | 3 Comments
It takes outside-the-box thinking to outsmart the solar spectrum and set a world record for solar cell efficiency. The solar spectrum has boundaries and immutable rules. No matter how much solar cell manufacturers want to bend those rules, they can't.
So how can we make ... | <urn:uuid:27f26aae-a3e4-42ab-933d-39c486196c55> | 3.359375 | 1,441 | News Article | Science & Tech. | 51.338573 | 685 |
Deforestation monitoring needs better capacity and access to technologies
Most tropical developing countries are struggling to monitor and report their greenhouse gas emissions from forest loss, and will need international support to implement the UN REDD+ scheme, according to a study.
The Reducing Emissions from Defor... | <urn:uuid:a39a2d08-01a8-4cfd-a64b-30208373568d> | 3.15625 | 898 | Comment Section | Science & Tech. | 35.328865 | 686 |
Oct. 22, 1998 Oct. 21, 1998 -- A vibrant celestial photo album of some of NASA Hubble Space Telescope's most stunning views of the universe is being unveiled today on the Internet.
Called the Hubble Heritage Program, this Technicolor gallery is being assembled by a team of astronomers at Hubble's science operations cen... | <urn:uuid:053a2981-e5e8-4f85-aba2-445edb1c65a6> | 2.859375 | 795 | News Article | Science & Tech. | 36.245673 | 687 |
Gallery: Images of Mars from the Curiosity rover
Curiosity has stopped in its tracks on Mars as scientists investigate a shiny object on the planet surface that probably came from the rover itself.
Images from a sandy area called Rocknest, where Curiosity began scooping soil samples last weekend, show a small, oblong o... | <urn:uuid:a8b822e2-df2c-4df1-a699-aae55a3a25de> | 2.703125 | 422 | News Article | Science & Tech. | 47.834182 | 688 |
7. A point is on the perpendicular bisector of a line segment if and only if it lies the same distance from the two endpoints.
There are two things that need to be proved here. The first is that if a point is on the perpendicular bisector of a line segment, then it is equidistant from the two endpoints of the segment.
... | <urn:uuid:f8b49205-6972-49a9-83ab-a66cb2a926a1> | 3.78125 | 445 | Academic Writing | Science & Tech. | 56.653818 | 689 |
Introduction to Integrals
The Definite Integral
The definite integral is a convenient notation used the represent the left-hand and right-hand approximations discussed in the previous section. f (x)dx means the area of the region bounded by f , the y -axis and the lines x = a and x = b. Writing f (x)dx is equivalent to... | <urn:uuid:f092ba97-0d03-497d-811a-07a6f4f4e39d> | 4.5 | 580 | Tutorial | Science & Tech. | 46.219777 | 690 |
From the time of Aristotle (384-322 BC) until the late 1500’s, gravity was believed to act differently on different objects.
- Drop a metal bar and a feather at the same time… which one hits the ground first?
- Obviously, common sense will tell you that the bar will hit first, while the feather slowly flutters to the g... | <urn:uuid:43ce7457-915e-4a8a-b78f-fca95b28656c> | 3.953125 | 1,359 | Tutorial | Science & Tech. | 81.255107 | 691 |
- Scientists & Leadership
- ISB Research
- Education & Outreach
SEATTLE - Relocating is stressful, even for a microbe. Knowing how a microorganism can quickly adapt to challenges of a new habitat helps researchers better understand how commensals (good microbes) and pathogens colonize diverse environments including soi... | <urn:uuid:d7eb0b34-44df-4277-83dc-95246fd5100e> | 3.203125 | 895 | News (Org.) | Science & Tech. | 19.074564 | 692 |
Researchers in Kerala to use modern techniques for DNA analysis
Alison is not aware of her white cousin housed in a rescue centre at Puducherry. She, however, is on chattering terms with the grey striped version of her species scurrying about in a cage near hers in the laboratory of the Department of Zoology, Universit... | <urn:uuid:7606c777-7c3b-439b-bce5-8cf1d65f8f89> | 3.25 | 745 | News Article | Science & Tech. | 39.304142 | 693 |
Boffins simulate plasma-eating dusty 'life-forms'
Dust to dust, etc
Physicists have discovered that charged particles of dust can form themselves into life-like structures that appear to be capable of reproducing and passing information along, behaviour reminiscent of life on Earth.
The researchers, (led by V N Tsytovi... | <urn:uuid:8e42c785-f1b0-4a69-b060-51bf90081460> | 3.015625 | 622 | News Article | Science & Tech. | 32.437895 | 694 |
Image of the Sun from SOHO
Click on image for full size
Courtesy of NASA
SOHO Catches Glimpse of the Sun's "Far Side"
News story originally written on June 23, 1999
The Solar and Heliospheric Observatory (SOHO) caught a rare view of the far side of the Sun. Scientists can now see if a solar storm is coming before it re... | <urn:uuid:db527059-363c-414b-b23c-d5c04a7be983> | 3.578125 | 570 | Content Listing | Science & Tech. | 56.929373 | 695 |
This weather balloon is full of helium gas. It is surrounded by Earth's atmosphere, which is mostly nitrogen and oxygen gasses. Helium is "lighter" (less dense) than nitrogen or oxygen, so the balloon will rise when the scientist lets go of it.
Click on image for full size
Image courtesy of the University Corporation f... | <urn:uuid:7bf1d597-0484-4471-8f33-5503ed8fe8ab> | 3.875 | 860 | Knowledge Article | Science & Tech. | 56.872293 | 696 |
Introduction to Enzymes
The following has been excerpted from a very popular Worthington publication which was originally published in 1972 as the Manual of Clinical Enzyme Measurements. While some of the presentation may seem somewhat dated, the basic concepts are still helpful for researchers who must use enzymes but... | <urn:uuid:b1f146ea-468c-4e1e-980b-c4c17efb5378> | 3.734375 | 235 | Knowledge Article | Science & Tech. | 36.452391 | 697 |
Introduction to Enzymes
The following has been excerpted from a very popular Worthington publication which was originally published in 1972 as the Manual of Clinical Enzyme Measurements. While some of the presentation may seem somewhat dated, the basic concepts are still helpful for researchers who must use enzymes but... | <urn:uuid:950e10c6-23a1-4ac4-896e-da30b265af84> | 3.828125 | 234 | Knowledge Article | Science & Tech. | 32.865254 | 698 |
Ames Research Center, Calif.
Oct. 04, 2004
NASA Infrared Images May Provide Volcano Clues
NASA scientists took infrared (IR) digital images of Mount Saint Helens' last week. The images revealed signs of heat below the surface one day before the volcano erupted last Friday in southern Washington. The images may provide ... | <urn:uuid:db720b17-d1f3-4e42-9053-ce04a92539e9> | 3.625 | 625 | News (Org.) | Science & Tech. | 43.268661 | 699 |