The interior of a Fabletics clothing store. Photo: Courtesy of Fabletics ...

Short Wave New discoveries, everyday mysteries, and the science behind the headlines — in just under 15 minutes. It's science for everyone, using a lot of creativity and a little humor.

As the south pole of the magnet sweeps past, a voltage of opposite polarity is induced, and current flows in the opposite direction. This is the fundamental operating law of a generator. The output, ...