A ball of glass will bounce higher than a ball made of rubber.
73
One barrel of petroleum holds 42 gallons.
20
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
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
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
German chemists made a replica of a trophy the size of one molecule.
68
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
One 75-watt bulb gives more light than three 25-watt bulbs.
57