At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Aluminum used to be more valuable than gold!
84
The storage capacity of human brain exceeds 4 Terrabytes.
140
A cubic yard of air weighs about 2 pounds at sea level.
31
Hot water can freeze faster than cold water.
181