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BREAKING: SCIENTISTS INVENT "STAR TREK" CLOAKING DEVICE
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[quote:Anonymous Coward 1468230:MV8xNTYxODQxXzI1ODA1MDU3XzczNzdENDk0] for folks interested in this stuff- here's another article from last year on the same subject... http://www.abc.net.au/news/2010-11-16/spacetime-cloak-to-make-events-invisible/2338220 [/quote]
Original Message
Simply put one lens on the front of ship and one on the back and you have a cloaking device.
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[
link to www.technologyreview.com
]
Invisibility cloaks are the result of physicists' newfound ability to distort electromagnetic fields in extreme ways. The idea is steer light around a volume of space so that anything inside this region is essentially invisible.
The effect has generated huge interest. The first invisibility cloaks worked only at microwave frequencies but in only a few years, physicists have found ways to create cloaks that work for visible light, for sound and for ocean waves. They've even designed illusion cloaks that can make one object look like another.
Today, Moti Fridman and buddies, at Cornell University in Ithaca, go a step further. These guys have designed and built a cloak that hides events in time.
Time cloaking is possible because of a kind of duality between space and time in electromagnetic theory. In particular, the diffraction of a beam of light in space is mathematically equivalent to the temporal propagation of light through a dispersive medium. In other words, diffraction and dispersion are symmetric in spacetime.
more at above link
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