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4 days ago · Alexander Graham Bell, Scottish-born American inventor, scientist, and teacher of the deaf whose foremost accomplishments were the invention of the telephone (1876) and refinement of the phonograph (1886).
- Alexander Graham Bell Summary
Alexander Graham Bell, (born March 3, 1847, Edinburgh,...
- Alexander Graham Bell Summary
Nov 9, 2009 · Alexander Graham Bell, best known for his invention of the telephone, revolutionized communication as we know it. His interest in sound technology was deep-rooted and personal, as both his wife...
Sep 20, 2024 · In the 1870s, Elisha Gray and Alexander Graham Bell independently designed devices that could transmit speech electrically. Both men rushed their respective designs for these prototype telephones to the patent office within hours of each other.
- Mary Bellis
On 7 March 1876, Alexander Graham Bell was granted a patent for the telephone—but did he invent it?
Oct 19, 2018 · On 7 March 1876, Bell was granted US patent 174465A, for a method of transmitting speech by telegraphy—the telephone. The decision has been disputed by scholars ever since, although a 2020 paper by Benjamin Lathrop Brown has argued that recently unearthed archival sources prove Bell’s priority. Whether this will finally settle a 150-year ...
Explore a biography of Alexander Graham Bell the inventor of the telephone. Discover facts about his early life through to his later inventions.
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The project that Bell himself called his greatest achievement in 1880 he named the photophone. This was a method of transmitting sound in a beam of light using a light sensitive selenium cell to...
