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Timekeeping
Explore the History and Science of Telling Time
Inglés
41 b
Política de devolución de 30 días
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Tapa blanda
36.89
€
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Tapa blanda
15.09
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Tapa blanda
27.69
€
Timekeeping: Explore the History and Science of Telling Time travels through the past and into the future to explore how humans have measured the passage of time. From ancient civilization's earliest calendars and shadow clocks to GPS and the atomic clocks of today, kids will track the evolution of timekeeping devices, meet the inventors of calendars and clocks, and learn interesting facts and trivia. Hands-on projects and activities include making a shadow clock, using a protractor to create a sundial, measuring time using water, and creating your own calendar. Kids will understand how civilization's vague abilities to track days and months has transformed over the centuries into a sophisticated ability to keep time to the millionth of a second.
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1 Añadir al carrito y elegir Entregar como regalo en el checkout 2 Le enviaremos un vale 3 El libro llegará a la dirección del destinatarioTambién puede interesarle
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Tapa dura
46.49
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Tapa blanda
19.39
€
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Tapa dura
36.69
€
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Tapa blanda
35.39
€
