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Nanoscale imaging reveals unexpected behaviors in high-temperature superconductors
05-30-2007 · EurekAlert!Recent discoveries regarding the physics of ceramic superconductors may help improve scientists' understanding of resistance-free electrical power. Tiny, isolated patches of superconductivity exist within these substances at higher temperatures than previously were known, according to a paper by Princeton scientists, who have developed new techniques to image superconducting behavior at the nanoscale.
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Keywords: nanoscale, imaging, reveals, unexpected, behaviors, high-temperature, superconductors, reveal, behavior, high, temperature, superconductor
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04-02-2007 · EurekAlert!
If sterile larvae are used by each sex to wage war against the other sex, then it should be primarily females who are interested in killing their brothers. This work explains the often strongly skewed sex ratios in these wasps, where females outnumber males, due to sex differences in killing behavior. More generally, it reveals how Darwinism can be used to explore the function of puzzling animal behaviors.
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- Unlocking the Secrets of High-temperature Superconductors
03-07-2007 · Brookhaven National Laboratory
Although it was discovered more than 20 years ago, a particular type of high-temperature (Tc) superconductor -- material that conducts electricity with almost zero resistance -- is regaining the attention of scientists at Brookhaven National Laboratory.
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- Efforts for whites to appear colorblind may backfire
12-04-2006 · EurekAlert!
New research shows that whites often avoid using race to describe other people, particularly in interactions with blacks. However further research reveals that such efforts to appear colorblind and unprejudiced are associated with less-friendly nonverbal behaviors. "By their nonverbal behavior alone, the whites who are trying to appear colorblind to impress their black partners ironically come across as distant and unfriendly," said Samuel R. Sommers, Ph.D., assistant professor of psychology at Tufts University.
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- Physicists set 'speed limit' for future superconducting magnet
02-11-2007 · EurekAlert!
The material currently used in magnetic resonance imaging machines -- a low-temperature superconducting alloy of niobium -- has been pushed almost as far as it can go, to around 21 Tesla. Now a team led Northwestern University researchers has identified a high-temperature superconductor -- called Bi-2212 -- as a material that might be suitable for the new wires needed to one day build the most powerful superconducting magnet in the world, a 30 Tesla magnet.
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- CT scan reveals ancient long-necked gliding reptile
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- New particle explains odd behavior in cuprate superconductors
07-17-2007 · EurekAlert!
New fundamental particles aren’t found only at Fermilab and at other particle accelerators. They also can be found hiding in plain pieces of ceramic, scientists at the University of Illinois report.The newly formulated particle is a boson and has a charge of 2e, but does not consist of two electrons, the scientists say. The particle arises from the strong, repulsive interactions between electrons, and provides another piece of the high-temperature superconductivity puzzle.
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