The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
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
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
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
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
The sun is 330,330 times larger than the earth.
75
