Discover how to build a simple wireless power transfer system at home using readily available components like enameled copper ...

Discover how to build a simple device that converts light into electricity using LEDs and diodes. This step-by-step guide ...

Combining Cor Van Rij's JFET test socket with two DMMs, a current limiter, switches and a wall wart yield a simple, accurate ...

We all carry supercomputers in our pockets and use dozens of electric gizmos every day but rarely stop to marvel at the magical act of flicking a switch. Use your ordinary conducting and extraordinary ...