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
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Pure water (H2O) does not conduct electricity on its own.
46
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20
Most dust particles in your house come from dead skin.
48
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Sound at the right vibration can bore holes through a solid object.
134
One 75-watt bulb gives more light than three 25-watt bulbs.
57