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It's Okay to Be Smart
Could You Really Survive Being Shrunk?!
Season 4
Episode 41
It’s okay to be small?
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11:30
I went to NASA in Houston to talk to astronaut Don Pettit.
7:20
Why is ice slippery? It's a more complicated answer than it seems!
11:53
Here’s a rundown of a few of the human body’s biggest evolutionary fails!
8:51
Why are trees and other plants green? The answer is full of surprises.
11:24
I look at a few of the most famous incorrect factoids in science.
