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Old 21st Feb 2015, 22:31
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Join Date: Aug 2005
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Mass doesn't enter into it.
No, but length does, and a large chandelier would be long.

it's swing length would decay at the same rate as the subject, so you still can't really say you've done anything other than saying, "well it feels about the same length of time, so it must be"
The point is that the time taken is the same - regardless of the amplitude of the swing (at least at small amplitudes).

Galileo was moved to investigate the phenomenon having noticed the equal time period.
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