Many people do not realize that the earth spins on its axis. They know the axis tilts and that causes summer and winter. How fast does the earth spin? I looked that up for you. The answer is hardly believable; it spins at 1000 miles an hour. If you do not believe that, think about this; it takes 24 hours to complete a day. The earth has a circumference of 24,000 miles at the equator, so it takes a speed of rotation of 1,000 miles per hour to rotate through one day. Now if you were on a merry-go-round spinning at that speed you would fly off in a second. So why don’t we fly off the earth? The answer is gravity. Pretty cool eh?
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