Re: speed of light measurement

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1 total messages Started by Lowell Herr Sun, 16 Oct 1994 22:05

#1106

Author: Lowell Herr
Date: Sun, 16 Oct 1994 22:05

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Judy,

I use (and perhaps you did as well) the rotating mirror system employed by
Robert Millikan.  If it takes a period of time for one of the
mirrors to move, say 1/8 of a total revolution, and the distance light
travels for that time interval is known, then one can show how c is
calculated.  It is much easier to explain than it is to do but the rotating
mirror explanation seems to work quite well.

Are you after specific quantitative information such as, how many times
did Millikan bounce the light beams back and forth?

Lowell

Project PHYSLab
The Catlin Gabel School
Portland, OR 97225

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