Post AMG7mPFoLoA2mfmzMe by kyle@social.librem.one
 (DIR) More posts by kyle@social.librem.one
 (DIR) Post #AMG6P348a2PRLzcwSG by kyle@social.librem.one
       2022-08-06T17:56:05Z
       
       0 likes, 1 repeats
       
       Success! A little cleaning and lubrication freed up the stuck registers enough to do long division. Here's the Marchant Silent Speed approximating Pi. #antique #calculator
       
 (DIR) Post #AMG7mPFoLoA2mfmzMe by kyle@social.librem.one
       2022-08-06T18:11:31Z
       
       0 likes, 0 repeats
       
       It's worth mentioning that this is doing long division via repeated subtraction completely mechanically, just using the electric motor to power the gears. If you watch closely you can see it detect underflows, increment, and then shift right to the next digit.
       
 (DIR) Post #AMG9GQBTYbVKJIda9w by fssofdeath@social.librem.one
       2022-08-06T18:28:08Z
       
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       @kyle@social.librem.one this is so cool! I love the ingenuity that went into making those old calculators. When we're not busy being assholes, humans can be pretty awesome.
       
 (DIR) Post #AMGAncBu2Ki93kEGEC by kyle@social.librem.one
       2022-08-06T18:45:20Z
       
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       Here's another view of the same operation from the back so you can see more of the gears move.
       
 (DIR) Post #AMGXpJfw96zJ9w3cmW by golemwire@social.librem.one
       2022-08-06T23:03:23Z
       
       0 likes, 0 repeats
       
       I have always wondered what a physical representation of a running computer program would look like; I guess things like this are about as close as I can get.I've always wanted to see a Charles Babbage Analytical Engine running!
       
 (DIR) Post #AMICGLq2P2kJ0jBifg by mrdoornbos@mastodon.social
       2022-08-07T18:11:08Z
       
       0 likes, 0 repeats
       
       @kyle I have a similar one
       
 (DIR) Post #AMIPFcL8ramXIviWcS by kyle@social.librem.one
       2022-08-07T20:36:42Z
       
       0 likes, 0 repeats
       
       @mrdoornbos I have that R C Allen model! Very nice hand crank adding machine with subtraction feature. It is what I would reach for to balance a checkbook if I needed a paper trail.