“Spacetime cloak” can edit history
JEWELLERY thieves, magicians, exam cheats and practical jokers everywhere will have an interest in an offbeat idea launched by physicists yesterday: to make time invisible.
The scientists have conceived of a “spacetime cloak” which manipulates light and, in essence, conceals whole events from a viewer.
The theory is based on censoring the flow of events, which we perceive as a stream of light particles, also called photons, that strike the retina.
By exploiting a characteristic of fibre optics, the flow of photons can be slowed, events edited out and stitched back together, say the team from Imperial College London and Salford University, north-western England.
“A safecracker would be able, for a brief time, to enter a scene, open the safe, remove its contents, close the door and exit the scene, whilst the record of a surveillance camera apparently showed that the safe door was closed all the time,” their paper claims.
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curious little story this one..they cant really edit time but they can make things as if nothing has happened..bit like a QE2 bailout!
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