11:17
Water - Liquid Awesome: Crash Course Biology #2
14:09
Biological Molecules - You Are What You Eat: Crash Course Biology #3
14:05
Why is All Life Carbon Based, Not Silicon? Three Startling Reasons!
21:01
Watch Trudeau speak directly to Trump during blistering speech
1:39:11
FULL SPEECH: Trump addresses Congress
33:37
Something Strange Happens When You Trust Quantum Mechanics
13:27
Introduction to Biology: Crash Course Biology #1
13:46