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
For every gallon of sea water, you get more than a quarter pound of salt.
45
Iron weighs more after it rusts.
16
The average home creates more pollution than does the average car.
33
Your brain is 80% water.
525
Billions of neutrinos pass unnoticed through your body every second.
6
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89