Most recent change of Pendulum
Edit made on August 18, 2011 by ColinWright at 16:51:02
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WW WM
HEADERS_END
Studied by Galileo.
It was thought that the time for each swing of a pendulum is constant,
but it's now known that this is only true for very small swings.
The motion of a pendulum is an example of simple harmonic motion.
You can use a pendulum indirectly to measure acceleration due to gravity:
* http://wings.avkids.com/Curriculums/Forces_Motion/pendulum_howto.html
* http://www.google.com/search?q=pendulum+measure+gravity