TEACHERS
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Published on Mar 29, 2016
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PRESENTATION OUTLINE
1.
TELEGRAPH
BY JONATHAN PECK
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cliff1066™
2.
An electrical telegraph is a telegraph that transmits electrical signals to another outpost via transmission lines or radio.
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mrbill
3.
the telegraph was invented in 1837 by Samuel Morse. His assistant, Alfred Vail, invented Morse Code which translates dots and dashes into the alphabet.
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digitizedchaos
4.
THE END
OR IS IT?.....
Photo by
Xerones
Jody Peck
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