In the SPARK Museum, a trove of early electric motors

On display at The SPARK Museum of Electrical Invention are myriad devices that tell the exciting story of electrical history, including a string of devices that walk visitors from the early thought experiments of Michael Faraday to the electric induction motors of Nikola Tesla: Faraday Rotating Cup Experiment: Michael Faraday‚Äôs rotating cup device, which he invented in 1822, is one …