Sound travels about 4 times faster in water than in air.
408
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
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
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Hot water can freeze faster than cold water.
181
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20