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But You Must Make Assumptions To Make The Definitions

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Posted by Paul R. Martin on November 22, 2001 22:45:57 UTC

Hi Alex,

You must assume that the frequency of the light holds steady. If the frequency slows down, the length you defined keeps getting longer and the duration of one second gets longer. You wouldn't be able to notice this because your measurements would change right along with the slowdown of the frequency. Since time is defined to be dependent on the frequency, you wouldn't be able to detect the change in frequency.

So how can we be so sure the frequency holds steady?

Warm regards,

Paul

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