Every physics department needs a double pendulum, so here's how I built ours. The big improvement is that the bottom pendulum can be locked in place. This turns the chaotic double pendulum into a non-chaotic physical pendulum.
This project was originally published 31.Aug.2007 on instructables.com as part of their Science Fair contest.
I'm going to be lazy and skip writing a big long introduction or explanation for this and just focus on how mine is put together. The links below are good starting points for background info.
http://www.physics.usyd.edu.au/~wheat/sdpend/ (a neat version made from two square plates).
Please send any questions or comments to me at email@example.com.
Go back to my home page.
Go to the Lecture Demonstration webpage.