0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
For every gallon of sea water, you get more than a quarter pound of salt.
45
The force of a suction cup is calculated using F=AP.
15
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The average temperature at 40,000 feet above sea level is -60 F.
56
The average home creates more pollution than does the average car.
33
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55