I made this to keep track of vids that I had promoted to see how they went. It was originally private, but I changed that in case other people are interested too.
YT: Bill reveals the engineering inside a toy music box. He describes how the comb is mass manufactured, details the spring, gears and governor that drive the box, and shares some history of early music boxes.
posted by Fantomas
8 years 11 months 1 week ago • 237 views • 8:03Not yet a member? No problem!
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