One 75-watt bulb gives more light than three 25-watt bulbs.
57
Hot water can freeze faster than cold water.
181
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Sound travels fifteen times faster through steel than through air.
134
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89