The average temperature at 40,000 feet above sea level is -60 F.
56
For every gallon of sea water, you get more than a quarter pound of salt.
45
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
Sound travels fifteen times faster through steel than through air.
134
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17