Musical Dominos

It's been quite some time since I've posted a video from Lily Hevesh, known as Hevesh5. In that time, she's just gotten better at doing amazing things with dominoes and has turned her talent into a career. Now she makes dominoes play music! The domino fall itself is beautiful, and involves thousands of dominoes and several sets of bells. But how do you design the timing of the bells? How it's done is explained in an extensive behind-the-scenes video that involves math. (via The Kid Should See This)