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Post by hairball on Jan 23, 2015 22:51:47 GMT 10
A team of Scottish scientists has made light travel slower than the speed of light. They sent photons - individual particles of light - through a special mask. It changed the photons' shape - and slowed them to less than light speed. The photons remained travelling at the lower speed even when they returned to free space. The experiment is likely to alter how science looks at light. The collaborators - from Glasgow and Heriot-Watt universities - are members of the Scottish Universities Physics Alliance. They have published their results in the journal Science Express. The speed of light is regarded as an absolute. It is 186,282 miles per second in free space. Light propagates more slowly when passing through materials like water or glass but goes back to its higher velocity as soon as it returns to free space again. Or at least it did until now. Two and a half years ago, the experimenters set out to see if they could slow down light just a little - and keep it moving more slowly. In a laboratory at Glasgow university, Dr Jacquiline Romero, Dr Daniel Giovannini and colleagues built what amounts to a racetrack for photons, the individual particles of light. Proton race
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Post by Wes Gear on Jan 24, 2015 0:01:31 GMT 10
Interesting.
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Post by brillbilly on Jan 24, 2015 0:01:38 GMT 10
Quote; The speed of light is regarded as an absolute. Hahaha!...someones been telling porkies? Can i just point out that i can reflect light off a bathroom mirror,and stop that light in it's tracks when it hits the wall....Do i get any funding for that? ? lol
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Post by hairball on Jan 26, 2015 4:22:09 GMT 10
I wonder if this affects the predicted distances of far off objects? After all, if sweaty sock scientists (no offence meant Scotland) have slowed light down, who's to say it hasn't occurred naturally?
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Post by Wes Gear on Jan 26, 2015 20:25:48 GMT 10
I wonder if this affects the predicted distances of far off objects? After all, if sweaty sock scientists (no offence meant Scotland) have slowed light down, who's to say it hasn't occurred naturally? Yeah been thinking the same thing Hairball. Could things like 'Dark Matter' effect the speed of Light?
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Post by brillbilly on Jan 27, 2015 4:36:43 GMT 10
I really know very little about photons,lightspeed etc,i just look at stars lol
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Post by hairball on Jan 28, 2015 7:31:32 GMT 10
Don't we all Mr Brill (know shit about protons) ... ... but isn't looking at stars what brought us here?
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Post by hairball on Jan 28, 2015 7:32:50 GMT 10
I wonder if this affects the predicted distances of far off objects? After all, if sweaty sock scientists (no offence meant Scotland) have slowed light down, who's to say it hasn't occurred naturally? Yeah been thinking the same thing Hairball. Could things like 'Dark Matter' effect the speed of Light? I think you read my mind!!
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Post by brillbilly on Jan 29, 2015 3:12:04 GMT 10
Don't we all Mr Brill (know shit about protons) ... ... but isn't looking at stars what brought us here? Yeah the best star's i've seen?................. the ones that looked like stars............... then buggered off at great speed lol I bet them Aliens have engines that make photon drives look vintage!
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Post by hairball on Jan 29, 2015 7:30:29 GMT 10
Don't we all Mr Brill (know shit about protons) ... ... but isn't looking at stars what brought us here? Yeah the best star's i've seen?................. the ones that looked like starts............... then buggered off at great speed lol I bet them Aliens have engines that make photon drives look vintage! I've seen that happen twice ... once in broad day light
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