Thomas Edison

Essay specific features

 

Issue:

Biographies

 

Written by:

Fred T

 

Date added:

June 12, 2016

 

Level:

University

 

Grade:

A

 

No of pages / words:

2 / 549

 

Was viewed:

6696 times

 

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Essay content:

By the sale of telegraphic appliances, Edison earned $40,000, and with this money he established his own laboratory in 1876. Afterward he devised an automatic telegraph system that made possible a greater speed and range of transmission. Edison's crowning achievement in telegraphy was his invention of machines that made possible simultaneous transmission of several messages on one line and thus greatly increased the usefulness of existing telegraph lines...
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Edison's crowning achievement in telegraphy was his invention of machines that made possible simultaneous transmission of several messages on one line and thus greatly increased the usefulness of existing telegraph lines. Important in the development of the telephone, which had recently been invented by the American physicist and inventor Alexander Graham Bell, was Edison's invention of the carbon telephone transmitter...
displayed 300 characters

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