Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Indoor pollution is 10 times more toxic than outdoor pollution.
62
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Research indicates that plants grow healthier when they are stroked.
173
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9