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Machines: How They Work

Outboard Motors, Pneumatic Drills, and Retractable Pens

Season 1 Episode 20
How does an outboard motor, a pneumatic drill, and a retractable pen really work? Go inside the incredible machinery behind these everyday objects to see their extraordinary inner workings.
  • 22 min
  • TV-G
  • Premiered 05/12/2016