揭秘发条八音盒是如何工作的

科技机械2018-05-09 19:33:36
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https://www.youtube.com/watch?v=COty6_oDEkk&t=293s 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
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