Learn how to create a homemade hand-powered phone charger using repurposed materials like an old DVD and a small motor. This ...

Discover how to build a simple electromagnetic motor and generator using everyday materials in this hands-on science experiment. Follow the detailed steps to assemble a motor with a plastic bottle cap ...

But powerful magnets are usually large and energy hungry. Chukun Gao at the Swiss Federal Institute of Technology in Zurich and her colleagues sought to build a small ultra-strong magnet that would ...