4.5 pounds of sunlight strike the Earth each day.
27
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
A cubic yard of air weighs about 2 pounds at sea level.
31
Balsa wood is classified as a hard wood!
41
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Nylon is made from coal and petroleum.
42
No matter how cold it gets, gasoline will not freeze.
107