When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Billions of neutrinos pass unnoticed through your body every second.
6
A cubic yard of air weighs about 2 pounds at sea level.
31
Diamonds can be shattered with a hammer.
-104
Liquid TIDE laundry detergent glows under a blacklight.
96