The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Balsa wood is classified as a hard wood!
41
The force of a suction cup is calculated using F=AP.
15
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Iron weighs more after it rusts.
68
Scientists in Germany have developed a candy that doesn't cause cavities.
11