The bark of an older redwood tree is fireproof.
65
A cubic yard of air weighs about 2 pounds at sea level.
31
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
The earth is approx. 6,588,000,000,000,000,000 tons.
175
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
According to studies, men change their minds two to three times more often than women.
72
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21