1,2,3,4,5...
One googol written out is: 10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000
A Game Of Lung Tennis
The total surface area of a pair of human lungs is equal to that of a tennis court.
Blood Tanker
In seventy-five years the human heart pumps 3,122,000,000 gallons of blood, enough to fill in oil tanker over 46 times!