There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Cold water weighs more than hot water.
93
Sound at the right vibration can bore holes through a solid object.
134
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
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
In zero gravity, a candle's flame is round and blue.
16