Scientists in Germany have developed a candy that doesn't cause cavities.
11
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
4.5 pounds of sunlight strike the Earth each day.
27
Iron weighs more after it rusts.
68
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Each day, up to 150 species of life become extinct.
-23
For every gallon of sea water, you get more than a quarter pound of salt.
45