Iron weighs more after it rusts.
68
Billions of neutrinos pass unnoticed through your body every second.
6
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20
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
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
One 75-watt bulb gives more light than three 25-watt bulbs.
57