How Do You Know What Time It Is?

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Albert Whitman and Company, 2002 - Juvenile Nonfiction - 32 pages
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What would life be like with no clocks and no calendars? How would you know when to get up in the morning? How would you know when baseball season was about to start?. Long, long ago, all people could do was watch the sun and moon and try to figure things out. Eventually they made simple clocks like sundials. And as time marched on, people came up with more ways to measure it. Today, quartz crystal watches and atomic clocks tell us exactly what time it is at any moment all over the world.

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About the author (2002)

Robert E. Wells (Robert Ernest Wells) was born in Pasadena, CA in 1940. In the 90s, he began to put words and pictures into the form of children's books, and now in the new century he continues to do so. In 1993 he wrote and illustrated his first book, "Is a Blue Whale the Biggest Thing There is?". Other books include "What's Smaller Than a Pygmy Shrew?" (Outstanding Science Trade Book for Children, 1996), "What's Faster Than a Speeding Cheetah?", and his latest book, "Why Do Elephants Need the Sun?". Many of his books have been translated into various other languages.

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