Sound travels about 4 times faster in water than in air.
408
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
One third of the electricity produced on earth is used to power electric light bulbs!
75
Billions of neutrinos pass unnoticed through your body every second.
6
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Neanderthal man had a brain capacity 100cc larger than modern man's.
50