From DIY levitation tricks to clever braking systems, these swirling paths of electrons keep finding new ways to surprise and inspire.

I was going to take a break from “The Chronicles of GND.” But “Push Me, Pull Me” resulted in a surge of correspondence—much of it criticism that I had not included any diagrams of the various forms of ...

Eddy currents are specialized electric fields that are generated in the presence of a magnetic field and are often seen as a secondary field. An Eddy current can be produced by both electromagnets and ...