pillaroflight
5th January 2012, 01:25
Pentagon-supported physicists on Wednesday said they had devised a "time cloak" that briefly makes an event undetectable.
PARIS — Pentagon-supported physicists on Wednesday said they had devised a “time cloak” that briefly makes an event undetectable.
The laboratory device manipulates the flow of light in such a way that for the merest fraction of a second an event cannot be seen, according to a paper published in the science journal Nature.
It adds to experimental work in creating next-generation camouflage — a so-called invisibility cloak in which specific colours cannot be perceived by the human eye.
“Our results represent a significant step towards obtaining a complete spatio-temporal cloaking device,” says the study, headed by Moti Fridman of Cornell University in New York.
The breakthrough exploits the fact that frequencies of light move at fractionally different speeds.
http://news.nationalpost.com/2012/01/04/cloak-announced-by-pentagon-aims-to-make-someone-invisible-by-bending-time/
PARIS — Pentagon-supported physicists on Wednesday said they had devised a “time cloak” that briefly makes an event undetectable.
The laboratory device manipulates the flow of light in such a way that for the merest fraction of a second an event cannot be seen, according to a paper published in the science journal Nature.
It adds to experimental work in creating next-generation camouflage — a so-called invisibility cloak in which specific colours cannot be perceived by the human eye.
“Our results represent a significant step towards obtaining a complete spatio-temporal cloaking device,” says the study, headed by Moti Fridman of Cornell University in New York.
The breakthrough exploits the fact that frequencies of light move at fractionally different speeds.
http://news.nationalpost.com/2012/01/04/cloak-announced-by-pentagon-aims-to-make-someone-invisible-by-bending-time/