Strange metal contraption found in a desk drawer. The wheel spins

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A heavy metal contraption with an electrical component, rubbery desk surface, wheels, and no markings/company name : r/whatisthisthing

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Strange metal' sends quantum researchers in circles

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making a small jewelry box but it warped when the inside was cut

Strange metal contraption found in a desk drawer. The wheel spins, and the keylike paddle on its side moves when the wheel does. The wheel has tiny bumps that are too dull