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[Phys-l] Why does light travel at the speed of light?

To all who answered my question,

Thank you!

The answers made for interesting (and informative) reading and will facilitate a useful discussion with the student. I really appreciate the willingness of so many busy people to help out.

Bob Yeend
Justin-Siena H.S.
Napa, CA


On Jan 11, 2011, at 1:12 PM, Hugh Haskell wrote:

At 12:09 -0800 01/11/2011, Bernard Cleyet wrote:

A teacher member of the PTSOS** list posted:
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We're discussing Special Relativity in my conceptual physics class,
and a student asked WHY light goes at 300,000 km/s, and what limits it.

Have you any recommendations for a response?
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