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Scientists slow the speed of light

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Scientists slow the speed of light
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Scientists slow the speed of light
After discovering two years ago that the speed of light may not be fixed after all, physicists at the University of Glasgow have now discovered a way that the speed of light can be slowed by running it through a special mask, which changes its shape.

Published in the journal Science, the physicists challenged the standard that the speed of light in a vacuum remains constant by introducing a way to change the shape of the speed of light in order to slow it down.

Building a dual course “racetrack” to fire two groups of photons simultaneously towards a detector a meter away, researchers compared unaltered photons in their original state against photons that were fired through the filter, altering the shape into a Gaussian or Bessel beam.

The results for each photon group were compared, proving that the altered photons were 0.001 percent slower in arriving at the detector than the normal photons. Thus, not only did the light not return to its normal speed after passing through the filter, but also the light emitted officially moved slower than the speed of light. Who knew?

While the results will not cause upheaval (yet) in the modern realm of special relativity, nor will they toss Einstein in his grave, this new discovery will lead to exploration by future researchers to ensure the validity of the test and to offer further possibilities concerning the speed of light.
Mon Apr 06, 2015 11:59 pm View user's profile Send private message
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