The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Balsa wood is classified as a hard wood!
41
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Your brain is 80% water.
525
A cesium atom in an atomic clock beats over nine billion times a second.
43
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 cubic yard of air weighs about 2 pounds at sea level.
31