Physicists Develop Test for 'String Theory'
Jan 23, 2007 |
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For decades, scientists have taken issue with “string theory”—a theory of the universe which contends that the fundamental forces and matter of nature can be reduced to tiny one-dimensional filaments called strings—because ...
Hydrogen-powered lawnmowers?
Jan 23, 2007 |
4.3 / 5 (33) |
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In a breakthrough that could make fuel cells practical for such small machines as lawnmowers and chainsaws, researchers have developed a new mechanism to efficiently control hydrogen fuel cell power.
Taking entanglement beyond one ebit
Jan 23, 2007 |
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“Entanglement is a main part of quantum mechanics, and it is important to obtain a high degree of it in physical systems,” Lucas Lamata tells PhysOrg.com. Lucas Lamata is a scientist with the Institute for Fundamental Mathem ...
What Will GLAST Tell Us?
Jan 23, 2007 |
4.1 / 5 (21) |
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The identity of dark matter—the mysterious stuff that makes up a quarter of the universe—continues to elude scientists, even decades after they first inferred its existence. The leading candidate that might ...
Light-Emitting Diodes for Night-Vision Displays
Jan 23, 2007 |
4.1 / 5 (19) |
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More and more, conventional inorganic semiconductor electronics are being complemented with organic components. For example, flexible displays, large illuminated displays, or flat-panel displays can be made from organic light-emitting ...
North America's wind patterns shifted significantly in the past 30,000 years
Space & Earth / Earth Sciences
Jan 23, 2007 |
4.3 / 5 (16) |
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Dartmouth researchers have learned that the prevailing winds in the mid latitudes of North America, which now blow from the west, once blew from the east. They reached this conclusion by analyzing 14,000- to ...
Scientists assess risk of potential flu pandemic spread via global airlines
Jan 23, 2007 |
4.5 / 5 (13) |
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An Indiana University School of Informatics-led team of researchers has constructed a model that predicts how an emerging pandemic influenza might spread across the globe by airliners.
Paleontologists discover most primitive primate skeleton
Other Sciences / Archaeology & Fossils
Jan 23, 2007 |
3.7 / 5 (11) |
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The origins and earliest branches of primate evolution are clearer and more ancient by 10 million years than previous studies estimated, according to a study featured on the cover of the Jan. 23 print edition ...
'Terror bird' arrived in North America before land bridge, study finds
Other Sciences / Archaeology & Fossils
Jan 23, 2007 |
4.2 / 5 (9) |
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A University of Florida-led study has determined that Titanis walleri, a prehistoric 7-foot-tall flightless "terror bird," arrived in North America from South America long before a land bridge connected the two continents.
Detecting land mines with sound
Jan 23, 2007 |
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Researchers at MIT's Lincoln Laboratory are developing a highly pinpointed sound beam that can detect buried land mines from a safe distance. The new beam will use sound to seek out land mines like a bat uses sonar to hunt ...
Thinking with the spinal cord?
Jan 23, 2007 |
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Two scientists from the University of Copenhagen have demonstrated that the spinal cord use network mechanisms similar to those used in the brain. The discovery is featured in the current issue of Science.
Turning an axel mounted molecular wheel
Jan 23, 2007 |
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Researchers at the Centre for Material Development and Structural Studies in Toulouse (CEMES-CNRS) and their colleagues at the Free University of Berlin have, for the first time, managed to control the rotation of a wheel ...
IQ testing for obese people is challenged
Jan 23, 2007 |
4.3 / 5 (7) |
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A U.S. group is challenging an insurance company's requirement that morbidly obese people be given an IQ test before undergoing weight loss surgery.
Who laid the first egg?
Other Sciences / Archaeology & Fossils
Jan 23, 2007 |
4.1 / 5 (7) |
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A decade ago, Shuhai Xiao, associate professor of geosciences at Virginia Tech, and his colleagues discovered thousands of 600-million-year-old embryo microfossils in the Doushantuo Formation, a fossil site ...
A synchrotron for neutral molecules
Jan 23, 2007 |
2.9 / 5 (9) |
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In the February issue of Nature Physics, Gerard Meijer and colleagues at the Fritz-Haber Institute, part of the Max Planck Society in Berlin, report the construction and operation of the first synchrotron for neutral molecu ...
