Owen Tanner
Solar Pendulum
Sunshine is all you need to get this easy-to-build pendulum swinging.
IF YOU’RE STUCK FOR SOMETHING TO DO on a rainy weekend then this might be the perfect thing to build, ready for when the sun comes back out. The pendulum is self-starting, meaning that when light hits the solar panels it’ll start swinging all by itself. There’s something a bit magical about watching it swing ever higher with no visible help, which is the main reason I decided to build one.
The inner workings of my pendulum are built around a circuit that appeared in the book Junkbots, Bugbots, and Bots on Wheels, co-authored by the father ...
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