Mechanical Adder Mechanical Adder
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The first video in what will probably be an absolutely insanely complicated project that will drive me crazy. I'm so excited. The Addifix/Addiator is a great little pocket calculator and is fun to use. All with no electricity! I may or may not want to start a small ... The Hexadder, made by Hexco Inc in the early 1970s. Sent to me by viewer Tom Carlson. Thanks Tom! This is episode 66 of my ... How to use the WEBB adding machine, patented in 1889 by Charles Henry WEBB. The 1954 machine Hamann 300 (so called version A) - semi automatic " ratchet" calculator. Machines like this one used coupling ... This device functions almost purely using principles of
A visual explanation of how pinwheel calculators work. Pinwheel calculators were invented in the 1870's and popular for almost ... The Addiator and Instamatic are perhaps the simplest I am also on too if you want more insanity in your life,have a website showing all my vids, my ... Now-a-days we use digital calculators to add big numbers. But in earlier days,
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Last Updated: June 11, 2026
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