Skip to Content
HomeAbout this siteHelpSearch this site The Library of Congress
America's Story from America's LibraryMeet Amazing AmericansJump Back in TimeExplore the StatesJoin America at PlaySee, Hear and Sing
Jump Back in Time 重建时期 (1866-1877)
 
Alexander Graham Bell's design sketch of the telephone, ca. 1876.
贝尔画的第一张电话设计图

Enlarge this image
第一通电话:1876310

因为他对科技向来就有好奇心,贝尔接着还发明了许多东西,包括1880年发明的影相电话 (photophone) 。这是第一支无线电话,通过光波传递声音,而不再使用电缆。这可说是现代使用光纤的无线电话系统的老祖先。


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.
Back  3/4 页 Next



Library Of Congress | Legal Notices | Privacy | Site Map | Contact Us