• DIY Electrostatic Motor

    John Biggs

    Biggs is the East Coast Editor of TechCrunch. Biggs has written for the New York Times, InSync, USA Weekend, Popular Mechanics, Popular Science, Money and a number of other outlets on technology and wristwatches. He is the former editor-in-chief of Gizmodo.com and lives in Bay Ridge, Brooklyn. You can Tweet him here and G+ him here. Email him directly at... → Learn More

    Thursday, May 19th, 2011

    In the post-apocalyptic hellscape that will be next week, we’re going to need people who know how to make unique electronics projects in order to power the homes of the cannibals who will populate our cities. To that end, we present this interesting DIY Electrostatic motor that will power, for example, a fan used to blow flies away from the new God-King who will rise to take his place on the throne once all political systems have fallen.

    The device uses a set of sticks topped with round clackers. A high voltage charge shoots into them, shuttling back and forth as the power flows.

    I used conductive spheres to shuttle electric charges between the poles of a high voltage (HV) DC source. This shuttle assembly was made from two, foil-covered spheres joined by a non-conducting, plastic tube. The assembly was sandwiched between two stationary, dumbbell shaped electrodes. When the upper dumbbell was grounded with respect to the negatively charged lower dumbbell, the shuttle began to bounce between the HV poles with a clacking noise as charges were transferred from the lower to the upper electrode. This rocking motion completed the HV circuit.

    If you can’t use this to control devices in the future, rest assured it will make an excellent trick for your upcoming travelling magic show.

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