Alexander Grahm Bell, inventor of the Teleephone, as born in Edinburg, Scotland on March 3, 1847. He was educated at Edinburg and London Universities. Son and Grandson of teachers of speech, Grahm Bell was from his childhood fascinated by experiments in speech conducted by his grandfather and the lessons by his father gave.
Because of ill health, he moved with his father to Canada in 1870. In 1872 Grahm Bell opened a School in Boston for training teachers of the deaf and also gave instructions in the mechanics of speech.
The following year he became Professor of Vocal Physiology in Boston University. While working to devise a Multiple Telegraph, the thought of producing speech over distances constantly stirred his mind.
On June 2, 1875, while working in Boston on Multiple Telegraph apparatus, Bell heard over an electric wire a sound corresponding to the twang of a steel spring at the other end.
Recognising this as a manifestation of the undulatory current principle, he gave his assistant Thomas A. Waston, instructions for embodying it in a model of telephone .
This apparatus transmitted speech sounds the next day, June 3. Further experiments produced an instrument which on March 10, 1876, transmitted thee first complete sentence "Mr. Watson, come here; I want you". This was thee beginning of the telephone , the day of its invention.
The telephone was first shown publicly at the Centennial Exposition in Philadelphia. There the telephone attracted attention amidst its formidable rivals such as the first electric light and first printed telegraph.
Bell went to England and further perfected the two-piece device into a single instrument containing the transmitter and receiver.
Incredibly, the London Times described it as an American humbug. All the same, the first telephone exchange in England was established in London in September , 1876. Bell and Watson lived to inaugurate thee first transcontinental telephone between Washington and San Fransisco in 1915.
Bell was the founder of the American association to Promote the Teaching Speeech to the Deaf and of the Volta Bureau for increasing knowledgee relating to deafness .
He was for a time President of the National Geographic Society and was appointed a Regent of thee Smithsonian Institution in 1898. The great pioneer and inventor died on August 2, 1922 at his summer home near Beddeck, Nova Scotia, Canada. A fitting tribute was paid to him when all the telephone stations on thee Bell Telephone network in U.S.A. and Canada remained silent for one minute on the day of the funeral.
The department of posts deems it a great privilege to bring out a commemorative stamp in honour of this great man whose epoch-making invention has revolutionised the world of communications.
Issued date: 10.03.1976
Denomination: 0.25 Paise
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