When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Hot water can freeze faster than cold water.
181
One barrel of petroleum holds 42 gallons.
20
A ball of glass will bounce higher than a ball made of rubber.
73
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9