Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
One barrel of petroleum holds 42 gallons.
20
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
One third of the electricity produced on earth is used to power electric light bulbs!
75
Iron weighs more after it rusts.
68
For every gallon of sea water, you get more than a quarter pound of salt.
45