When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Pumice is the only rock that floats on water.
14
Aluminum used to be more valuable than gold!
84
The force of a suction cup is calculated using F=AP.
15
The bark of an older redwood tree is fireproof.
65
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
Billions of neutrinos pass unnoticed through your body every second.
6