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InvisibleStein
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Check this shit out: Light so fast it goes backwards
    #5636509 - 05/16/06 06:27 AM (17 years, 8 months ago)



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OfflineChuangTzu
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Re: Check this shit out: Light so fast it goes backwards [Re: Stein]
    #5636628 - 05/16/06 08:02 AM (17 years, 8 months ago)

That's the most mis-leading headline ever. Especially the "so fast.." part because nothing is going faster than c here. The light propagates along at its usual speed in the medium, it's only the group velocity which is negative so nothing is actually going backwards either. A nifty trick but nothing like the headline would suggest.


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InvisibleStein
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Re: Check this shit out: Light so fast it goes backwards [Re: ChuangTzu]
    #5636671 - 05/16/06 08:28 AM (17 years, 8 months ago)

You should email them.


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OfflineSeussA
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Re: Check this shit out: Light so fast it goes backwards [Re: Stein]
    #5636776 - 05/16/06 09:16 AM (17 years, 8 months ago)

> That's the most mis-leading headline ever.

The headline is misleading, but the story itself is not. The researcher is very clear that information is not going faster than light.


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