Don't forget that energy harvesting from the lower pendulum will slow
it down and change its behavior. Perhaps some sort of wireless energy
transfer can be used instead.

/Ruben

On Fri, 28 Jul 2017 10:44:23 -0400, Jim Ruxton <jim.ruxton@gmail.com>
wrote:
> The pendulum hasnt been built yet but I am imagining something like
> 1.5 feet long made of 1/16 inch aluminum plate. To get a better idea
> of the movement the pendulum with the LED will be the bottom pendulum
> on a double pendulum. Here is an example of a simulation (not mine)
> https://m.youtube.com/watch?v=3DQXf95_EKS6E
>=20
> Jim
>=20

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