Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Sound at the right vibration can bore holes through a solid object.
134
If the chemical sodium is dropped into water it will immediately and violently explode.
67
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
The force of a suction cup is calculated using F=AP.
15