Record-Breaking: Scientists managed to stop light for a full minute | |
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Rockarchy
(OP) User ID: 43116317 United States 07/25/2013 06:28 PM Report Abusive Post Report Copyright Violation | If you can slow something down, you can also make it go faster. Quoting: Anonymous Coward 44028930 Maybe there is a material that we don't know and it speeds up light fiber-optic-style. Beyond the speed of light in vacuum. Einstein will shit bricks... Haha, they've already figured out how to speed up light faster than... light. ;) [link to www.livescience.com] |
Anonymous Coward User ID: 44032363 United Kingdom 07/25/2013 06:31 PM Report Abusive Post Report Copyright Violation | While light normally travels at just under 300 million metres per second in a vacuum, physicists managed to slow it down to just 17 metres per second in 1999 and then halt it completely two years later, though only for a fraction of a second. Earlier this year, researchers kept it still for 16 seconds using cold atoms. Quoting: Rockarchy To break the minute barrier, George Heinze and colleagues at the University of Darmstadt, Germany, fired a control laser at an opaque crystal, sending its atoms into a quantum superposition of two states. This made it transparent to a narrow range of frequencies. Heinze's team then halted a second beam that entered the crystal by switching off the first laser and hence the transparency. Read more: [link to www.newscientist.com] Bang Ding Ow! |
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