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Thread: Odhner Arithmometer pinwheel calculator - video

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  1. Aug 17, 2018, 08:24 AM #5
    mklotz
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    The Arithmometer is a lovely example of fully-exposed precision machinery. Beyond its utility as a math tool, it's gorgeous sculpture in my eyes.

    Complex calculators can be beautiful, but simplicity is attractive too. Did you know that the common pocket knife can be used as a planimeter? Read all about it here...

    https://spaco.org/Blacksmithing/FinnishPlanimeter.htm
    ---
    Regards, Marv

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  2. The Following 2 Users Say Thank You to mklotz For This Useful Post:

    Beserkleyboy (Aug 17, 2018), Jon (Aug 17, 2018)
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