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2114 Rethinking A Stirling Engine With Rubber

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Alternative to bearings for tiny robots

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021 The Mighty Mite Generator And How To Build It

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2198 The Spherical Solar Cell

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Twisting motion of monopole gear to transmit power to spherical gear

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Stealing Electricity (The safe way)

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Fred Rash's electric circle plane

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This Is The World's First Geared CVT and It Will Blow Your Mind - Ratio Zero Transmission