A biography of alexander graham bell the inventor of the telephone

Invention of the telephone ByBell's initial work on the harmonic telegraph had entered a formative stage, with progress made both at his new Boston "laboratory" a rented facility and at his family home in Canada a big success.

A biography of alexander graham bell the inventor of the telephone

Elisha Gray and Alexander Graham Bell, each independently, designed devices that could transmit speech electrically. Mabel had become deaf at age five as a result of a near-fatal bout of scarlet fever.

A biography of alexander graham bell the inventor of the telephone

Bell began working with her inwhen she was 15 years old. Despite a year age difference, they fell in love and were married on July 11, They had four children, Elsie —Marian —and two sons who died in infancy.

In Joseph Stearns had invented the duplex, a system that transmitted two messages simultaneously over a single wire. Inventors then sought methods that could send more than four; some, including Bell and his great rival Elisha Graydeveloped designs capable of subdividing a telegraph line into 10 or more channels.

These so-called harmonic telegraphs used reeds or tuning forks that responded to specific acoustic frequencies. They worked well in the laboratory but proved unreliable in service. A group of investors led by Gardiner Hubbard wanted to establish a federally chartered telegraph company to compete with Western Union by contracting with the Post Office to send low-cost telegrams.

Bell, however, was more interested in transmitting the human voice. Finally, he and Hubbard worked out an agreement that Bell would devote most of his time to the harmonic telegraph but would continue developing his telephone concept.

From harmonic telegraphs transmitting musical tones, it was a short conceptual step for both Bell and Gray to transmit the human voice. Bell filed a patent describing his method of transmitting sounds on February 14,just hours before Gray filed a caveat a statement of concept on a similar method.

On March 7,the Patent Office awarded Bell what is said to be one of the most-valuable patents in history. It is most likely that both Bell and Gray independently devised their telephone designs as an outgrowth of their work on harmonic telegraphy. However, the question of priority of invention between the two has been controversial from the very beginning.

Alexander Graham Bell's sketch of a telephone. He filed the patent for his telephone at the U. Patent Office on February 14, —just two hours before a rival, Elisha Gray, filed a declaration of intent to file a patent for a similar device.

Watson describing invention of the telephoneThomas A. Watson, assistant to Alexander Graham Bell, discussing the birth of the telephone, including the first words spoken.

Alexander Graham Bell - Wikipedia

He first produced intelligible speech on March 10,when he summoned his laboratory assistant, Thomas A.

Watson—come here—I want to see you. In August of that year, he was on the receiving end of the first one-way long-distance call, transmitted from Brantford to nearby Paris, Ontario, over a telegraph wire.

Bell, Alexander GrahamAlexander Graham Bell, inventor who patented the telephone inlecturing at Salem, Massachusetts topwhile friends in his study at Boston listen to his lecture via telephone, February 12, Although his invention rendered him independently wealthy, he sold off most of his stock holdings in the company early and did not profit as much as he might have had he retained his shares.

Thus, by the mids his role in the telephone industry was marginal. Alexander Graham Bell, who patented the telephone ininaugurating the 1,km mile telephone link between New York City and Chicago on October 18, Although Edison had invented the phonograph inhe soon turned his attention to other technologies, especially electric power and lighting, and his machine, which recorded and reproduced sound on a rotating cylinder wrapped in tinfoil, remained an unreliable and cumbersome device.

In the French government awarded Bell the Volta Prize, given for achievement in electrical science. Bell used the prize money to set up his Volta Laboratory, an institution devoted to studying deafness and improving the lives of the deaf, in Washington, D.

There he also devoted himself to improving the phonograph.

Portrait of Alexander Graham Bell

By Bell and his colleagues his cousin Chichester A. Bell and the inventor Charles Sumner Tainter had a design fit for commercial use that featured a removable cardboard cylinder coated with mineral wax.

They called their device the Graphophone and applied for patents, which were granted in The group formed the Volta Graphophone Company to produce their invention. Then in they sold their patents to the American Graphophone Company, which later evolved into the Columbia Phonograph Company.

Bell used his proceeds from the sale to endow the Volta Laboratory. Patented by Charles Tainter, Chichester Bell, and Alexander Graham Bell inthis vertically undulating groove, cut into a wax surface, was the most-successful method employed in cylinder sound recording.

Bell undertook two other noteworthy research projects at the Volta Laboratory. In he began research on using light as a means to transmit sound.Alexander Graham Bell was born March 3, in Edinburgh, Scotland, UK. His mother’s name was Eliza Grace Symonds.

ADDITIONAL MEDIA

His father, Alexander Melville Bell, was a professor of speech elocution at the University of Edinburgh. Alexander Graham Bell was a Scottish-American scientist and inventor, referred to as ‘Father of the Telephone’. This biography of Alexander Bell provides detailed information about his childhood, life, achievements, works & plombier-nemours.com Of Birth: Edinburgh.

Alexander Graham Bell was an influential scientist, engineer and inventor.

Alexander Graham Bell - HISTORY

He was born on March 3, in Edinburgh, Scotland. He died on August 2, at the age of Alexander Graham Bell is most famous for his invention of the telephone. He first became interested in the science of sound because both his mother and wife were deaf. His experiments in sound eventually let him to want to send voice signals down a telegraph wire.

In , at the age of 29, Alexander Graham Bell invented the telephone. Soon after, he formed the Bell Telephone Company in and in the same year married Mabel Hubbard before embarking on a yearlong honeymoon in Europe. Alexander Graham Bell could have easily been content with the success of.

Alexander Graham Bell invented the telephone. Remarkably, he only worked on his invention because he misunderstood a technical work he had read in German. His.

Alexander Graham Bell Biography - Childhood, Life Achievements & Timeline