One 75-watt bulb gives more light than three 25-watt bulbs.
57
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
12
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
German chemists made a replica of a trophy the size of one molecule.
68