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Speed of LIght may have changed........

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Speed of LIght may have changed........ was created by ftodonoghue

Interesing article....wait and see I reckon

www.guardian.co.uk/uk_news/story/0,3604,1456590,00.html
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Trevor
17 years 9 months ago #11137

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Replied by voyager on topic Re: Speed of LIght may have changed........

Interesting but I also think I'll wait and see.
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17 years 9 months ago #11139

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Replied by albertw on topic Re: Speed of LIght may have changed........

no citation to a paper I notice, I dont even see anything listed as a preprint from them.
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17 years 9 months ago #11140

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Replied by jhonan on topic Re: Speed of LIght may have changed........

no citation to a paper I notice, I dont even see anything listed as a preprint from them.

With all these changes in relativity going on, perhaps the conclusions and press release were issued before the paper? :lol:
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17 years 9 months ago #11141

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Replied by albertw on topic Re: Speed of LIght may have changed........

With all these changes in relativity going on, perhaps the conclusions and press release were issued before the paper? :lol:


Or perhaps the paper was released before the press release but gossip in the media travels faster than electrons on the abstract services :-)
Albert White MSc FRAS
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17 years 9 months ago #11142

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Replied by Seanie_Morris on topic Re: Speed of LIght may have changed........

With all these changes in relativity going on, perhaps the conclusions and press release were issued before the paper? :lol:


Or perhaps the paper was released before the press release but gossip in the media travels faster than electrons on the abstract services :-)


bloody wormholes, always messing things up...

I was going to win the lotto tomorrow night, but I have now chosen the wrong numbers yesterday...

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17 years 9 months ago #11176

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Replied by lionsden on topic Re: Speed of LIght may have changed........

With all these changes in relativity going on, perhaps the conclusions and press release were issued before the paper? :lol:


Or perhaps the paper was released before the press release but gossip in the media travels faster than electrons on the abstract services :-)


I knew you were going say that, I read it before you typed it! :lol:
Leo @ Lionsden
Perhap because light travels faster than sound, some people appear bright until you hear them speak.
17 years 9 months ago #11181

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Replied by michaeloconnell on topic Re: Speed of LIght may have changed........

Don't say anymore Leo! You're disturbing the space-time continuum!
17 years 9 months ago #11185

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Replied by owen on topic Papers

If anyone's interested, this story comes from a string of papers published since, I think, 1997. They are all on the arxiv.org/ website. The earliest one I downloaded was arxiv.org/pdf/astro-ph/9709227. There are a lot I looked at, and if anyone wants, I'll dig up the URLs I still have.

BTW, they don't mention the speed of light, but mainly the fine structure constant, or other fundamental constants (all linked though).

Owen
17 years 9 months ago #11212

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Replied by cobyrne on topic Re: Speed of LIght may have changed........

Actually, it's not possible for the speed of light to change. The metre is defined on the basis of the speed of light in a vacuum being exactly 299,792,458 metres per second.

So, if light starts to travel faster, the metre just gets longer! (It's not possible for the second to get shorter, as it is defined on another physical basis - a caesium atom and 9,192,631,770 Hz).
17 years 9 months ago #11223

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Replied by voyager on topic Re: Speed of LIght may have changed........

Actually, it's not possible for the speed of light to change. The metre is defined on the basis of the speed of light in a vacuum being exactly 299,792,458 metres per second.

So, if light starts to travel faster, the metre just gets longer! (It's not possible for the second to get shorter, as it is defined on another physical basis - a caesium atom and 9,192,631,770 Hz).


However, a change in the fine structure constant will effect the caesium atom so that will effect the second so the speed will change!
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17 years 9 months ago #11225

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