Meet Stephon Alexander—theoretical physicist by profession and saxophonist on the side. He is one of the scientists that we are profiling on "The Secret Life of Scientists and Engineers," a web-exclusive series from NOVA. Every two weeks, you'll have a chance to meet a new scientist or engineer. Watch their videos. Ask them questions. Find out how their surprising secret lives fuel their science, and vice versa.

"The Secret Life of Scientists and Engineers" is produced for NOVA by Seftel Productions. Visit pbs.org/nova/secretlife

Exclusive funding for "The Secret Life of Scientists" provided by the Alfred P. Sloan Foundation