Re: Define a clock
From: Tom Roberts (tjroberts_at_lucent.com)
Date: 10/01/04
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Date: Fri, 01 Oct 2004 08:42:31 -0500
Daniel Weston wrote:
> Tom: I said that a black box that gives you a periodic count of some
> number is not a timepiece. If a black box shown to you has a count of
> 4,589, it is impossible for you to tell me the time of day, or how that
> translates into a fraction of a daily rotation of the earth.
Sure. So what? In physics a clock only needs to provide a measurement of
time intervals. You want a time-of-day clock, which is different. As I
said, that require comparison with a clock already calibrated in the
units you want to use. For a time-of-day clock that includes a
synchronization.
So underlying this is a pun on "clock".
Tom Roberts tjroberts@lucent.com
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