Iron weighs more after it rusts.
68
Iron weighs more after it rusts.
16
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Indoor pollution is 10 times more toxic than outdoor pollution.
62
German chemists made a replica of a trophy the size of one molecule.
68
One ragweed plant can release as many as one billion grains of pollen!
51
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