The bark of an older redwood tree is fireproof.
65
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Sound travels about 4 times faster in water than in air.
408
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Diamonds can be shattered with a hammer.
-104