When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Out of all the senses, smell is most closely linked to memory.
146
Most dust particles in your house are made from dead skin!
67
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Hot water can freeze faster than cold water.
181
Iron weighs more after it rusts.
16
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Cold water weighs more than hot water.
93