Machines: How They Work

Machines: How They Work

Escalators, Leaf Blowers, and Tape Measures (1x3)


: 04, 2016

How does an escalator, a leaf blower, and a tape measure really work? Go inside the incredible machinery behind these everyday objects to see their extraordinary inner workings.

  • : 2015
  • : 20
  • : 2
  • Science Channel