Hot water can freeze faster than cold water.
181
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Scientists in Germany have developed a candy that doesn't cause cavities.
11
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
One barrel of petroleum holds 42 gallons.
20
Iron weighs more after it rusts.
68
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
A ball of glass will bounce higher than a ball made of rubber.
73