Bits of material levitating against gravity, a stream of water deflected by invisible means, sparks of light appearing out of thin air; with observations like those, it’s a wonder that the early ...

A utility sends phone alerts when wind power is cheap. A builder sells “zero bill” houses. They’re among several experiments to redefine how people value electricity. By Somini Sengupta Photographs ...

Steve Spangler has experiments you can do at home, all based on the science of electricity.

Steve Spangler has experiments you can do at home, all based on the science of electricity.