How Do You Know What Time Is?: Measuring Time (Wells of Knowledge) - Softcover

Wells, Robert

Softcover

ISBN 10: 0807579408 ISBN 13: 9780807579404

Verlag: Albert Whitman & Company, 2002

Inhaltsangabe

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.

Über diesen Titel

Über die Autorin bzw. den Autor

Robert E. Wells is the author and illustrator of many award-winning science books for children, including Can You Count to a Googol? and Why Do Elephants Need the Sun?. He lives with his wife in Washington.

Aus dem Klappentext

What would life be like with no clocks and no calendars? How would you know when to get up in the morning? 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.

Details zur Ausgabe

• Verlag: Albert Whitman & Company
• Erscheinungsdatum: 2002
• Sprache: Englisch
• ISBN 10: 0807579408
• ISBN 13: 9780807579404
• Einband: Tapa blanda
• Anzahl der Seiten: 32
• Kontakt zum Hersteller: Nicht verfügbar