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From: Barney
Date: 9/13/07
Time: 11:50:12 AM
Remote Name: 134.131.125.49
This is one of those questions that "doesn't quite match" the new text. Most texts go into great detail on how we know how long a second is, and whether a clock is "good" or "bad"... As long as you know that the SI unit for time is the second, you are ok.