Machines: How They Work - Safes, Tennis Ball Launchers, and Music Boxes

Seizoen: 1 - Aflevering: 4 / 4 - Eerst uitgezonden: 11 februari 2016 - Episode ID: 1347965

How does a safe, a tennis ball launcher, and a music box really work? Go inside the incredible machinery behind these everyday objects to see their extraordinary inner workings.