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Can 4 springs really power a perpetual motion machine?

Welcome to my channel Mr Sagoo where you will learn how to make an idea with your own hands. Is it really possible to build a ...
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How to make a hand-powered mobile charger with DC motors | Simple DIY project

Discover how to make a DIY hand-powered mobile phone charger using simple materials such as two small DC motors and a piece of cardboard. This step-by-step tutorial covers mounting the motors, wiring ...