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.
11
Out of all the senses, smell is most closely linked to memory.
146
4.5 pounds of sunlight strike the Earth each day.
27
For every gallon of sea water, you get more than a quarter pound of salt.
45
A cesium atom in an atomic clock beats over nine billion times a second.
43
Hot water can freeze faster than cold water.
181