A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
No matter how cold it gets, gasoline will not freeze.
107
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Scientists are now able to grow 'beating' heart tissue in a lab!
162
The sun is 330,330 times larger than the earth.
75
The average temperature at 40,000 feet above sea level is -60 F.
56