About Time

About Time
出版社:Houghton Mifflin
出版時(shí)間:2004-10
頁(yè)數(shù):32
詞匯量:2953
Lexile:1200L
AR:6.7
虛構(gòu):非虛構(gòu)
ISBN:9780618396689
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Time to read a book. Time to wash dishes. Time to do this or that. You say things like this every day, all the time. But there was a time when time itself was undefinedno one knew the difference between a minute, an hour, or a day. Then people started creating tools to measure time. First they used the big stuff around themthe sun, the moon, water. Soon after, using the knowledge they got from their natural time-telling tools, people began to build clockshuge clocks unlike the ones we use today. They also used their knowledge of the sun and moon to create calendars made up of months and years. Now, centuries later, we have clocks all around us. We can easily figure out how long a month is. But it took many years of tinkering and inventing to perfect the art of telling time. You could take a few moments now to read all about time. If you have a minute, that is.

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About Time
Bruce Koscielniak 著 / Houghton Mifflin
《About Time(A First Look at Time and Clocks)》時(shí)間是我們生活中不可或缺的一環(huán),所以有很多關(guān)于時(shí)間的諺語(yǔ),我們現(xiàn)在人觀測(cè)和利用時(shí)間已經(jīng)熟門熟路了,但是在遙遠(yuǎn)的古代,精準(zhǔn)的測(cè)量時(shí)間卻是經(jīng)過(guò)了漫長(zhǎng)的推演和計(jì)算的。這本書從人類最開始發(fā)現(xiàn)日月盈仄開始介紹,到公元前3500年蘇美爾人最早使用日歷來(lái)幫助他們記錄年月日,慢慢介紹了人類關(guān)于時(shí)間觀測(cè)使用的一步步進(jìn)化和提升,然后慢慢的出現(xiàn)了關(guān)于一天之內(nèi)的精細(xì)時(shí)間測(cè)量工具(比如日晷、沙漏),世界各地的文明...
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