4.5 pounds of sunlight strike the Earth each day.
27
Hot water can freeze faster than cold water.
181
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
Each day, up to 150 species of life become extinct.
-23
A cesium atom in an atomic clock beats over nine billion times a second.
43
According to studies, men change their minds two to three times more often than women.
72
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
