Samuel Morse, That's Who! ― The Story of the Telegraph and Morse Code
- ISBN13：9781627791304
- 出版社：Henry Holt Books for Young Readers
- 作者：Tracy Nelson Maurer; El Primo Ram鏮 (COR)
- 裝訂／頁數：精裝／40頁
- 規格：28.6cm*22cm*0.6cm (高/寬/厚)
- 出版日：2019/06/25
- 藍思閱讀分級： 700L
商品簡介
A lively picture book biography of Samuel Morse that highlights how he revolutionized modern technology.
Back in the 1800s, information traveled slowly. Who would dream of instant messages? Samuel Morse, that’s who! Who traveled to France, where the famous telegraph towers relayed 10,000 possible codes for messages depending on the signal arm positions—only if the weather was clear? Who imagined a system that would use electric pulses to instantly carry coded messages between two machines, rain or shine? Long before the first telephone, who changed communication forever? Samuel Morse, that’s who!
This dynamic and substantive biography celebrates an early technology pioneer.
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