Alexander Graham Bell, Scottish-American Inventor
Alexander Graham Bell opening a long distance phone line from New York to Chicago in 1892. Portrait of Alexander Graham Bell (1847-1922), Scottish-American speech therapist and inventor of the telephone. Bell followed his father and grandfather into the speech therapy profession, but also studied sound waves and the mechanics of speech. By 1871, he had moved to the USA, becoming professor of vodal physiology a Boston. There he performed his experiments in converting sound waves into electrical impulses for transmission down wires. In 1876, he patented the telephone and founded what has become the AT&T company. In later years he made many improvements to the telephone, worked with Langley and Curtis on flying machines, and founded the journal Science
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1847 Advancement Breakthrough Converting Experimental Groundbreaking Impulses Patent Physiology Scottish American Scottish-american Studied Technological Tele Tele Communication Tele-communication Therapist Therapy Transmission Vocal
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