| How to Build a Superluminal Computer |
| Tuesday, 09 March 2010 16:34 |
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Physicists have come up with a way to process information faster than the speed of light. But what could they do with such a hypercomputer? The speed of light represents one of the fundamental limits of the laws of physics. Nothing can travel faster than the speed of light, right? Well, yes and no, say Volkmar Putz and Karl Svozil at the Vienna University of Technology in Austria. They say there are several ways that signals can cross the superluminal line, although none of them allow the kind of time travel paradoxes beloved of science fiction writers. For example, the quantum phenomenon of entanglement occurs when two quantum particles are described by the same wave function. These particles can be separated by the diameter of the universe and yet a measurement on one will instantaneously influence the other. |
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| Panorama of the East Coast | ||
| This Jan. 29 panorama of much of the East Coast, photographed by one of the Expedition 30 crew members aboard the International Space Station, provides a look generally northeastward: Philadelphia-New York City-Boston corridor (bottom-center); western Lake Ontario shoreline with Toronto (left edge); Montreal (near center). An optical illusion in the photo makes the atmospheric limb and light activity from Aurora Borealis appear "intertwined." Image Credit: NASA... | ||
| 03 Feb 2012 | ||
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