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Home / Series / Machines: How They Work / Aired Order / Season 1 / Episode 4

Safes, Tennis Ball Launchers, and Music Boxes

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.

English français
  • Originally Aired February 11, 2016
  • Runtime 25 minutes
  • Network Science Channel
  • Created October 13, 2017 by
    Administrator admin
  • Modified October 13, 2017 by
    Administrator admin