Discover the surprising way a magnet and coil can power an LED! In this video, we explore the fascinating physics of electromagnetic induction, showing how moving a magnet through a coil of wire can ...

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"Bicycle, cycle, bike, lights, bike, dynamo, generator, batteryless, safety light, magnet, flash, flashing, no, battery, batteries, no friction, no drag, no ...

A new type of bike light is currently on Kickstarter that is looking to make the jump from concept to production. However this bike light requires no batteries of any kind. Instead it is powered by a ...