A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Each day, up to 150 species of life become extinct.
-23
A cubic yard of air weighs about 2 pounds at sea level.
31
The force of a suction cup is calculated using F=AP.
15
One cubic foot of gold weighs more than 1,200 pounds!
78
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