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Invisibility Cloak, science that seems fiction May 3, 2009

Posted by rationalskeptic in Physics.
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There has been news about invisibility cloaks becoming a reality over the last few years, but this is the closest i have seen yet and the most exciting news about such a cloak.

Source: images

“A team led by Xiang Zhang, a principal investigator with Berkeley Lab’s Materials Sciences Division and director of UC Berkeley’s Nano-scale Science and Engineering Center, has created a “carpet cloak” from nanostructured silicon that conceals the presence of objects placed under it from optical detection. While the carpet itself can still be seen, the bulge of the object underneath it disappears from view. Shining a beam of on the bulge shows a reflection identical to that of a beam reflected from a flat surface, meaning the object itself has essentially been rendered invisible.”

High-temperature superconductors December 14, 2008

Posted by rationalskeptic in Physics, Science.
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High temperature superconductors?

High temperature superconductors?

Photo/article courtesy of physorg.com
The international team of physicists, led by Professor Nigel Hussey from the University’s Physics Department, publish their results today in Science Express, a rapid online access service for important new publications in the journal Science.
Superconductivity is when a pair of electrons are traveling in opposite directions, become attracted to one another and loose their electrical resistance, and thus creates a current (energy). (A paraphrase from the article)
Physicists have been working with low temperature superconductors for years, but if this advancement remains viable then the possiblity of room temperature superconductors could emerge,
“This holy grail of superconductivity research holds the promise of loss-free energy transmission, cheap, fast, levitated transport and a whole host of other revolutionary technological innovations.”