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Innovator of the Telegraph
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Meet Samuel F. B. Morse,
the inventor of the electrical telegraph as well as of Morse Code and the man who demonstrated first electric telegraph message between Baltimore and Washington, D.C. in 1844: The Electric Telegraph.
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See other telegraphs worked on by other inventors:
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Ronalds Telegraph, 1816:
Earlier inventors were intrigued by the idea of the electric telegraph, but unable to devise practical working models. This electrical telegraph, invented by Francis Ronalds (1788-1873) in 1816, required more than a hundred wires.
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The Needle Telegraph:
In Britain in 1837, two of Morse's contemporaries, Charles Wheatstone and William Cooke, invented a workable, non-printing, telegraphic device called the needle telegraph, which used electromagnetism to point a needle at alphabetic symbols.
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Other Challenging Designs:
After Morse's celebrated 1844 demonstration, other inventors challenged Morse and each other for supremacy by developing alternative telegraph designs.
Automatic Printing
Telegraph
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Wheatstone Printing
Telegraph
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House's Printing
Telegraph
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Bains Decomposing
Telegraph
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Horns Igniting
Telegraph
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Innovators of the Internet
Meet the three most important figures in the development of the Internet, who transformed computers into interactive tools for communication and collaboration:
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J. C. R. Licklider
a psychologist worked on the SAGE air defense project and went on to work at ARPA, the Department of Defenses Advanced Research Projects Agency. He promoted the development of interactive computing and encouraged people to think of computers as tools for communication and collaboration.
Listen to his brief comments.
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Larry Roberts
an electrical engineer and computer scientist headed the ARPANET program and was responsible for the overall design of the network transforming computers into interactive tools for communication and collaboration.
Listen to his brief comments.
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