Why Don't Bicycles Fall Over?
But Why: A Podcast for Curious Kids - Podcast készítő Vermont Public Radio - Péntek
Kategóriák:
It's all about bikes in this episode of But Why? Why bicycles can stay up when you're riding them, but fall over when stopped. Olympian Lea Davison tells how to get started when riding, and we learn how a bike chain moves a wheel.
