The average temperature at 40,000 feet above sea level is -60 F.
56
No matter how cold it gets, gasoline will not freeze.
107
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Scientists are now able to grow 'beating' heart tissue in a lab!
162
For every gallon of sea water, you get more than a quarter pound of salt.
45