One barrel of petroleum holds 42 gallons.
20
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Nearly 50% of the world's scientists are assigned to military projects.
71
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
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