Human Powered Ferris Wheel

According to Google's (albeit rough) translation from French to English:

"A big wheel in India that does not work with an engine but using human power. Men throw themselves in front of the wheel to rotate due to their weight."

Nuts. I want one. Hmm...how to make it...

• Previously, R-i-c-k-e-t-y Backyard Roller Coaster.
• DIY Redneck Roller Coaster.