One 75-watt bulb gives more light than three 25-watt bulbs.
57
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Nylon is made from coal and petroleum.
42
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
MIT has developed a camera that captures the speed of light at a trillion frames per second.
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
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51
For every gallon of sea water, you get more than a quarter pound of salt.
45