Kniha Timekeeping W. Eric Martin

Timekeeping

Explore the History and Science of Telling Time

Jazyk: Angličtina
Väzba: Brožovaná
Vydavateľ: Nomad Press
Dostupnosť: Skladom u dodávateľa v malom množstve
Odosielame za 11-15 dní
14.81
Timekeeping: Explore the History and Science of Telling Time travels through the past and into the f...

Informácie o knihe

Jazyk
Angličtina
Väzba
Kniha - Brožovaná
Vydalo
2012
Stránok
128
EAN
9781619300330
ISBN
1619300338
Enbook ID
05093023
Vydavateľ
Hmotnosť
295
Rozmery
203 x 254 x 10

Kompletný popis

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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