Alexander Graham Bell develops thephotophonewhich uses sunlight to carry messages. It was never commercially produced. 亚历山大.格雷厄姆.贝尔利用太阳 开发 用于传输信息。这种 从未用于商业生产。 声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审
Alexander Graham BellJournal of the Franklin InstituteTHE PHOTOPHONE. Alex,er Graham Be. Science . 1880Bell A G. The Photophone[J].Journal of the Franklin Institute,1880,(04):237-248.Bell A G.The Photophone.Journal of the Franklin Institute.0.237-248...
On June 3, 1880,Alexander Graham Belltransmitted the first wireless telephone message on his newly invented "photophone," a device that allowed for the transmission of sound on a beam of light. Bell held four patents for the photophone and built it with the help of an assistant, Charles Sumn...
Most people know Alexander Graham Bell invented the telephone. But not many know about another talking device (equipment) he invented just four years later,in 1880. He called the device the photophone. "Photophone" comes form the Greek words for "light" and "sound". The photophone did not ...
美['foʊtoʊfoʊn] 是什么意思 n. 光电话,光线电话; 英英释义 Photophone The photophone (later given the alternate name radiophone) is a telecommunications device which allowed for the transmission of speech on a beam of light. It was invented jointly by Alexander Graham Bell and his assi...
美['foʊtoʊfoʊn] 英['fəʊtəfəʊn] n.【信】光线电话机;光音机 网络光电话;光音器;光电话机 英汉 网络释义 n. 1. 【信】光线电话机;光音机
Alexander Graham BellShow more Add to Mendeley Share Cite https://doi.org/10.1016/0016-0032(80)90543-8Get rights and contentAccess through your organization Check access to the full text by signing in through your organization. Access through your organization ...
英汉-汉英词典 n.光电 ,光线电 英语例句库 1.Alexander Graham Bell develops thephotophonewhich uses sunlight to carry messages. It was never commercially produced. 亚历山大.格雷厄姆.贝尔利用太阳光开发光电用于 息。这种光电 从未用于商业 。 声明:以上例句、词性分类均由互联网资源自动成,部分未经过人工审核,...
Alexander Graham Bell came up with the photophone, and research by IBM in the 1980s also showed that LEDs can be used for data communication. Light spark: As part of new series of articles on entrepreneurship, Carlos Lee, director general of the European Photonics Industry Consortium, speaks ...