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fidget spinner generator reaching 100 V

sciencetoolbarsciencetoolbar wrote 09/22/2017 at 09:03 • 1 min read • Like

fidget spinner electric generator reaching 100 V using neodymium sphere 30 mm, a coil iron - less, a bearing (holder for the 30 mm neodymium sphere) 3 sphere fidget spinner extra weight and a led bulb 9W 230 V

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