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by jerf
3238 days ago
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This may help you refine your intuition about why it could matter: https://www.youtube.com/watch?v=GuCdsyCWmt8&t=5m0s It's an electron microscope animation of a needle passing through a record's groove. (I would note that due to the way the recording is made, it may be the case that a real needle would jerk around a bit more. On the other hand, it wouldn't have to jerk around much before this entirely stops working, so I'd guess in the end it's probably pretty accurate.) |
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