A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Your brain is 80% water.
525
A cubic yard of air weighs about 2 pounds at sea level.
31
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101