One 75-watt bulb gives more light than three 25-watt bulbs.
57
Each day, up to 150 species of life become extinct.
-23
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 Earth's atmosphere weighs about 5.5 quadrillion tons.
108
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
One third of the electricity produced on earth is used to power electric light bulbs!
75
Balsa wood is classified as a hard wood!
41
Sound at the right vibration can bore holes through a solid object.
134