Iron weighs more after it rusts.
68
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
One barrel of petroleum holds 42 gallons.
20
The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7
German chemists made a replica of a trophy the size of one molecule.
68
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9