Gear differentials! Purdy neat
Posted Dec 24, 2021, 2:15 AM UTC
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These videos are gold! There's another one about mechanical naval ballistics computers.
Link
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If only schools explained things this well
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[deleted]
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How? It’s technical information in a video format...
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My mistake, I thought this was r/technicallythetruth. It turns out I was the lost redditor all along
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Those videos are so good from 1930 that it put animation or 3D VR to shame in today's rime.