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Author Topic:   Speed of Light
Posts: 4071
From: Ontario, Canada
Joined: 12-02-2004
Member Rating: 3.1

Message 244 of 268 (671357)
08-24-2012 1:42 PM
Reply to: Message 242 by David Carroll
08-24-2012 1:01 PM

Re: c & t
David Carroll writes:

And then wouldn't this account for the red-shift? If c were faster, then wouldn't the space dimension parallel to the direction of the faster-c light-beam undergo a Lorentzian expansion/dilation?

Perhaps. But a larger, simpler problem is created.

If "old light" is grandfathered to be faster-c, and "new light" is a slower-c... then we should be able to measure a difference between the c on new light from a lightbulb turned on here on Earth vs. the c on old light coming into Earth from far away stars.
But... I don't think a difference is measured.
In fact, I think that the two speeds of light (and any other attribute of the new vs. old light other than age) are exactly the same.

This message is a reply to:
 Message 242 by David Carroll, posted 08-24-2012 1:01 PM David Carroll has replied

Replies to this message:
 Message 245 by David Carroll, posted 08-24-2012 11:59 PM Stile has seen this message
 Message 246 by David Carroll, posted 08-25-2012 1:10 AM Stile has seen this message

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