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从等人高到三指宽：八音盒是如何进化的？
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2022-04-04 12:30
从等人高到三指宽：八音盒是如何进化的？
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#格物致知
每个人的童年应该都有一个八音盒，只需要转动几下发条，就会流淌出美妙的音乐。但你有尝试拆过八音盒吗？八音盒的工作原理又是什么呢？音梳、螺旋弹簧、棘轮、锥齿轮还有调节器又是如何组合在一起，构成八音盒的呢？
（via：engineerguy）
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