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Courk
Daedalian Member
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 Posted: Sun Oct 03, 2010 8:29 am Post subject: 1 |
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Apparently, shooting a laser into a block of glass creates 2 regions: one light cannot escape, and one it cannot enter. Can someone explain that to me? Here, have some context:
http://www.economist.com/node/17144843?story_id=17144843&fsrc=rss
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| In a paper just accepted by Physical Review Letters, however, a team of researchers led by Daniele Faccio from the University of Insubria, in Italy, report that they have observed Hawking radiation in the laboratory. They managed this trick not by creating an Earth-gobbling black hole on a benchtop but by firing pulses of laser light into a block of glass. This created a region from which light could not escape (analogous to a black hole) and also its polar opposite, a region which light could not enter. When the team focused a sensitive camera on to the block, they saw the faint glow of Hawking radiation. |
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Zag
Tired of his old title
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| Posted: Sun Oct 03, 2010 3:41 pm Post subject: 2 |
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| Cool!! Thanks for the link. |
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milkshake
Daedalian Member
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| Posted: Tue Oct 05, 2010 7:04 pm Post subject: 3 |
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Cool! Not being a physicist, I can't help except to say that I'm sure it makes sense and I'm sure the news source oversimplified.  Perhaps the block of glass in question could be quickly converted into a perfect one-way mirror in some fancy fashion.  |
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milkshake
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