A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
For every gallon of sea water, you get more than a quarter pound of salt.
45
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
Scientists aren't sure what color dinosaurs were.
312
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
Cold water weighs more than hot water.
93
Scientists in Germany have developed a candy that doesn't cause cavities.
11