3 Season
46 Episode
Why Is It So? - Season 1 Episode 15 Levers, Inclined Planes, Geared-Wheels and Other Simple Machines
With a great many tools before him, Professor Miller sets out to prove that all tools and machines are linked to the two simplest: the lever and the inclined plane.
- Country : Australia
- Genre :
- Director :
- Cast : Julius Sumner Miller
