Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
4.5 pounds of sunlight strike the Earth each day.
27
Indoor pollution is 10 times more toxic than outdoor pollution.
62