Music boxes are hand-cranked toys that play a tinkly little tune. How do they make their music? We asked music box maker Richard Upchurch to help us find the answer.
Got a question that’s making you cranky? Send it to us at BrainsOn.org/contact, and we’ll find a harmonious answer.

We’re back! Brains On Universe has a new headquarters
07:30

A big update about Moment of Um and the Brains On Universe
02:56

How do braces work?
06:19