K&R Video category: Most Recent

00:04:41

World’s Largest Kid-Powered Rocket 4 years ago

00:00:51

Classical Physics 4 years ago

00:02:28

Full-Power Road-Trip Rocket Launch 4 years ago

00:03:51

Flaming String Thing (pt. 1) 4 years ago

00:03:56

Making the World’s Largest Kid-Powered Rocket 4 years ago

00:02:20

Playing with our new bug zapper 5 years ago

00:06:11

Suspending Our Foam Plane – Pt. 2 5 years ago

00:03:25

How We Met Our New Neighbors 6 years ago