The average temperature at 40,000 feet above sea level is -60 F.
56
Scientists aren't sure what color dinosaurs were.
312
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
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
A ball of glass will bounce higher than a ball made of rubber.
73
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17