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telephone inventor
Bell's father, grandfather, and brother had all been associated with work on elocution and speech -
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(March 3, 1847 – August 2, 1922) -
telephone
Many other inventions marked Bell's later life, including groundbreaking work in optical telecommunications, -
telephone
His research on hearing and speech further led him to experiment with hearing devices -
invention
he had a strong influence on the magazine while serving as the second president from January 7, 1898 until 1903 -
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His father encouraged Bell's interest in speech and, in 1863, took his sons to see a unique automaton, developed by Sir Charles Wheatstone based on the earlier work of Baron Wolfgang von Kempelen.[29] The rudimentary "mechanical man" simulated a human voice. Bell was fascinated by the machine -
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Bell's father was invited by Sarah Fuller, principal of the Boston School for Deaf Mutes (which continues today as the public Horace Mann School for the Deaf),[54] in Boston, Massachusetts, to introduce the Visible Speech System by providing training for Fuller's instructors, but he declined the post in favor of his son. Traveling to Boston in April 1871, Bell proved successful in training the school's instructors