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
A ball of glass will bounce higher than a ball made of rubber.
73
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Iron weighs more after it rusts.
16
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
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5