The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Most dust particles in your house come from dead skin.
48
Scientists in Germany have developed a candy that doesn't cause cavities.
11
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
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Brass doorknobs automatically disinfect themselves in about 8 hours.
18