Name: Hoopy Explains How a Car Differential Works
Uploaded: 2026-06-27
Description: How a car differential lets drive wheels spin at different speeds through a turn — ring gear, pinion, carrier and spider gears explained simply.

Hoopy Explains How a Boat Propeller Works
Hoopy Explains How Noise-Cancelling Headphones Work
Hoopy Explains How a Quartz Watch Keeps Time