Iron weighs more after it rusts.
16
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
The average temperature at 40,000 feet above sea level is -60 F.
56
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Scientists aren't sure what color dinosaurs were.
312
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6