When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
The sun is 330,330 times larger than the earth.
75
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Most dust particles in your house are made from dead skin!
67
The force of a suction cup is calculated using F=AP.
15
The bark of an older redwood tree is fireproof.
65
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38