sciencetoolbar Posted August 8, 2017 Report Posted August 8, 2017 fidget spinner electric generator :) https://www.youtube.com/watch?v=Qc1fk5bMAV4 Quote
sciencetoolbar Posted September 4, 2017 Author Report Posted September 4, 2017 another model of a fidget spinner generator, using 3 neodymium spheres 13 mm, a coil and a led improved modelhttps://www.youtube.com/watch?v=_Rmx3q_qLt4st Quote
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