Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
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
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
The bark of an older redwood tree is fireproof.
65
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Brass doorknobs automatically disinfect themselves in about 8 hours.
18