Yvonne Carts-Powell

Lovely pendulum video

In beautiful, Science on June 10, 2011 at 11:57 am

The period of a pendulum depends on it’s length, not it’s weight. (Damping may depend on weight, air resistance, etc.)

This series of pendulums (pendula?) with different lengths make lovely patterns as they fall in and out of synch.

Swinging pendulum video on Youtube.
This is part of NatSciDemos channel (more info at Harvard Natural Sciences Lecture Demonstrations.

Originally found (thanks Valerie!) at the wonderful Bad Astronomy blog, where Phil Plait has more to say about it.

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