Elegant mechanisms from bygone eras — behold, the "math grenade" http://enwp.org/Curta_calculator … (best nickname!)
@argonblue neat! Have you ever disassembled one? Do you use them for calculations? What else is in the tactile math machine category?
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@starsandrobots other tactile math machines: abacus (maybe more of a mnemonic?), planimeter (haven't used 1 yet), E6B (flight computer)... -
@argonblue E6B a.k.a. the "Whiz Wheel" — more great names, and really cool :)
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@starsandrobots not brave enough to fully disassemble. haven't used for serious calc yet (tho i have used slide rule on a ham exam)Thanks. Twitter will use this to make your timeline better. UndoUndo
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