Scientists aren't sure what color dinosaurs were.
312
Sound travels about 4 times faster in water than in air.
408
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
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Most dust particles in your house are made from dead skin!
67