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Next Generation
Cloaking Device Demonstrated
ScienceDaily (Jan. 16, 2009) — A device that can
bestow invisibility to an object by "cloaking" it from visual light is
closer to reality. After being the first to demonstrate the feasibility of
such a device by constructing a prototype in 2006, a team of Duke
University engineers has produced a new type of cloaking device, which is
significantly more sophisticated at cloaking in a broad range of
frequencies.
The difference between the original device and the latest model is "like
night and day," Smith said. "The new device can cloak a much wider
spectrum of waves — nearly limitless — and will scale far more easily to
infrared and visible light. Cloaking devices bend electromagnetic waves,
such as light, in such a way that it appears as if the cloaked object is
not there."
Smith believes that cloaks should find numerous applications as the
technology is perfected. By eliminating the effects of obstructions,
cloaking devices could improve wireless communications, or acoustic cloaks
could serve as protective shields, preventing the penetration of
vibrations, sound or seismic waves.
For the complete article, go here:
http://www.sciencedaily.com/releases/2009/01/090115164530.htm
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