ALEXANDER GRAHM BELL

 

ALEXANDER GRAHM BELL(1847 - 1922):

He was the inventor of Telephone.

He was born on March 3,1847,in Edinburgh, Scotland. His father's name was Alexander Melville Bell and mother's name was Elize Grace. His father was a professor and Mother was a painter and pianist. He has two brother but both of whom died of tuberculosis. Throughout his childhood, he spent short periods of time in traditional educational institutions including Edinburgh's Royal High school, which he left at the age of 15.

He initially attended University of Edinburgh and then the University college, London ,England, but did not received a formal education. In 1870,after the death of two of his brothers, the bell family moved to Canada for the sake of his health. Expanding on his father's work of teaching deaf people to communicate. He began working on transmitting telephonic massages. In 1872,he founded school of vocal Physiology and Mechanics of speech in Boston, where he taught elocution to his pupils. In 1873, he was appointed the professor of vocal Physiology While pursuing his teaching profession, he was draw towards an idea of transmitting the human voice over wires.

 In 1874, he hired an assistant Thomas Watson, a skilled electrician.  Who developed the tools and instruments he needed to continue the project. On March 10,1876,he produced the fiest intelligible telephone call, when he said, Mr. Watson, come here. I want to see you. Thomas Watson who was in another room heard Bell's voice and come to see the telephone had worked . A legal battle ensued with inventor Elisha Gray, who claimed his invention of the telephone predated Bell's. But the court ruled in Ball's favor and subsequently Bell Telephone Company was formed in 1877.

 On July 11,2877,he married his deaf student, Mabel Hubbard at the age of 30. They had four children, They are Elsie May Bell, Marian Hubbard Bell, Edward Bell and Robert Bell. By 1883,he created the technology for the Graph phone and other early sound recording equipment, a magnetic recording technology that was early form of tape recording. Towards the end of the 19th century, his interests to move away sound transmission and recording to transport technologies.

 He developed a passion for air travel and helped to establish the Aerial Experiment Association in 1907. In all, held 18 patents in his name alone and 12 that he shared with collaborators. Among them Telephone, Photo phone, Hydrofoil Boat ,Audiometer, HD-4, Metal Detector, Tetrahedral kite are noteworthy.

 He was one of the founders of the National Geographic Society in 1888 and served as its president from 1896 to 1904.

 He died on August 2,1922 in Beinn  Bhreagh, Nova scotia, at the age of 75 due to complications from diabetes.