Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
One barrel of petroleum holds 42 gallons.
20
The smell of freshly cut grass is actually a plant distress call.
31
One third of the electricity produced on earth is used to power electric light bulbs!
75
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
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