News tagged with grains
Scientist proposes explanation for puzzling property of night-shining clouds at the edge of space
Sep 25, 2008 |
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An explanation for a strange property of noctilucent clouds--thin, wispy clouds hovering at the edge of space at 85 km altitude--has been proposed by an experimental plasma physicist at the California Institute of Technology ...
Scientists see water ice in fresh meteorite craters on Mars
Space & Earth / Space Exploration
Sep 24, 2009 |
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(PhysOrg.com) -- Scientists are seeing sub-surface water ice that may be 99 percent pure halfway between the north pole and the equator on Mars, thanks to quick-turnaround observations from orbit of fresh ...
Physicists Find that Size Matters When Initiating an Object's Movement Through Grains
Sep 26, 2008 |
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A team of Penn State physicists has discovered that the size of grains, such as sand, above a buried object is important in determining the force required to begin raising the object. No one, until now, has ...
Cassini Maps Global Pattern of Titan's Dunes
Space & Earth / Space Exploration
Feb 27, 2009 |
4.9 / 5 (8) |
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(PhysOrg.com) -- Titan's vast dune fields, which may act like weather vanes to determine general wind direction on Saturn's biggest moon, have been mapped by scientists who compiled four years of radar data ...
Ancient Humans Left Evidence from the Party that Ended 4,000 Years Ago
Other Sciences / Archaeology & Fossils
Jul 21, 2009 |
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(PhysOrg.com) -- The party was over more than 4,000 years ago, but the remnants still remain in the gourds and squashes that served as dishware. For the first time, University of Missouri researchers have ...
First full 3-D view of cracks growing in steel
Jul 17, 2008 |
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A team of researchers from the University of Manchester (United Kingdom), the National Institute of Applied Sciences in Lyon (France) and the ESRF has revealed how a growing crack interacts with the 3D crystal ...
Scientist uses sedimentary record to uncover planet's past
Space & Earth / Earth Sciences
Feb 27, 2009 |
4.4 / 5 (8) |
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(PhysOrg.com) -- The wind barreled across the ice at Daily Lake as Montana State University paleoecologist Cathy Whitlock and three students used all their strength to pull a metal pipe out of the mucky lake ...
Whole grain cereals, popcorn rich in antioxidants, not just fiber: study
Aug 18, 2009 |
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In a first-of-its kind study, scientists reported today at the 238th National Meeting of the American Chemical Society (ACS) that snack foods like popcorn and many popular breakfast cereals contain "surprisingly ...
Evidence from dirty teeth: Ancient Peruvians ate well
Other Sciences / Archaeology & Fossils
Dec 01, 2008 |
4.7 / 5 (6) |
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Starch grains preserved on human teeth reveal that ancient Peruvians ate a variety of cultivated crops including squash, beans, peanuts and the fruit of cultivated pacay trees.
Female plant 'communicates' rejection or acceptance of male
Biology /
Oct 23, 2008 |
5 / 5 (5) |
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(PhysOrg.com) -- Without eyes or ears, plants must rely on the interaction of molecules to determine appropriate mating partners and avoid inbreeding. In a new study, University of Missouri researchers have identified pollen ...
A dust factory around a dead star
Feb 24, 2009 |
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(PhysOrg.com) -- A team of astronomers, led by Loretta Dunne from the University of Nottingham, have found some very unusual stardust. In a paper to be published in Monthly Notices of the Royal Astronomical ...
Does prebiotic material exist in space?
Mar 26, 2009 |
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Spanish and French astrophysicists have identified a band in the infrared range that serves to track the presence of organic material rich in oxygen and nitrogen in the interstellar dust grains. Should any ...
Creating Denser Magnetic Memory
Jul 07, 2009 |
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(PhysOrg.com) -- One of the issues afflicting magnetic memory is the fact that it is difficult to store information for as long as 10 years. In order to overcome this problem, scientists and engineers have been looking for ...
DNA of ancient lost barley could help modern crops cope with water stress
Jul 21, 2009 |
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(PhysOrg.com) -- Researchers at the University of Warwick have recovered significant DNA information from a lost form of ancient barley that triumphed for over 3000 years seeing off: 5 changes in civilisation, ...
Mediterranean diet associated with reduced risk of depression
Medicine & Health / Psychology & Psychiatry
Oct 05, 2009 |
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Individuals who follow the Mediterranean dietary pattern -- rich in vegetables, fruits, nuts, whole grains and fish -- appear less likely to develop depression, according to a report in the October issue of Archives of Ge ...
