Scientists aren't sure what color dinosaurs were.
312
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
One cubic foot of gold weighs more than 1,200 pounds!
78
No matter how cold it gets, gasoline will not freeze.
107
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116