Why Do We Itch?
13:40
A Brief (Scientific) History of Butts
12:30
Evolution FAILS in the Human Body
33:45
Why It Was Almost Impossible to Make the Blue LED
5:05
What causes dandruff, and how do you get rid of it? - Thomas L. Dawson
10:08
*WARNING* Stop Buying Home Genetic Tests!
17:17
Why Do We Lie?
34:29
I Took an IQ Test to Find Out What it Actually Measures
17:49