In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
If the chemical sodium is dropped into water it will immediately and violently explode.
67
According to studies, men change their minds two to three times more often than women.
72
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
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Sound travels fifteen times faster through steel than through air.
134
Iron weighs more after it rusts.
16