One barrel of petroleum holds 42 gallons.
20
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Pumice is the only rock that floats on water.
14
Sound travels fifteen times faster through steel than through air.
134
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
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