Iron weighs more after it rusts.
68
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
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
For every gallon of sea water, you get more than a quarter pound of salt.
45
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Indoor pollution is 10 times more toxic than outdoor pollution.
62