The average temperature at 40,000 feet above sea level is -60 F.
56
Out of all the senses, smell is most closely linked to memory.
146
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
The bark of an older redwood tree is fireproof.
65
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Aluminum used to be more valuable than gold!
84
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114