Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Your brain is 80% water.
525
Nylon is made from coal and petroleum.
42
Balsa wood is classified as a hard wood!
41
One cubic foot of gold weighs more than 1,200 pounds!
78
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
A cesium atom in an atomic clock beats over nine billion times a second.
43