A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Balsa wood is classified as a hard wood!
41
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The force of a suction cup is calculated using F=AP.
15
Nylon is made from coal and petroleum.
42