Name: Hoopy Explains How a Zipper Actually Works
Uploaded: 2026-08-20
Description: Ever wonder how a zipper locks two rows of teeth into one solid seam with a single pull? Hoopy breaks down the slider's hidden Y-shaped channel and the trick that keeps it from splitting open.

Hoopy Explains How a Jet Engine Works
Hoopy Busts the Myths: Electric Cars
Hoopy Explains How Noise-Cancelling Headphones Work