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Jump Back in Time 重建時期 (1866-1877)
 
Alexander Graham Bell's design sketch of the telephone, ca. 1876.
貝爾畫的第一張電話設計圖

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第一通電話:1876310

因為他對科技向來就有好奇心,貝爾接著還發明了許多東西,包括1880年發明的影相電話 (photophone) 。這是第一支無線電話,透過光波傳遞聲音,而不再使用電纜。這可說是現代使用光纖的無線電話系統的老祖先。


Inspired by his scientific curiosity, Bell went on to create other new inventions, including the photophone in 1880. This first wireless telephone transmitted sound on a beam of light instead of electrical wires. It is the forefather of the cordless phone and 80% of today's telephone systems that use fiber optics.
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