One cubic foot of gold weighs more than 1,200 pounds!
78
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
Most dust particles in your house are made from dead skin!
67
The bark of an older redwood tree is fireproof.
65
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
The storage capacity of human brain exceeds 4 Terrabytes.
140
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79