Discover how to build a simple electric train using just a copper coil, an AA battery, and disc magnets in this step-by-step ...
Discover three easy and educational DIY projects you can create at home using everyday household items. Learn how to make a miniature water pump with a plastic bottle cap, a simple homopolar motor ...
A blast from the Elektor archives: this 1998 battery tester uses a simple LED display to reveal a battery’s true condition ...
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