Alternative currency and balanced living system. Alternativna valuta i uravnoteženi životni sistem. Moneta alternativa e sistema di vita equilibrato.



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TOPIC: Telegraph

Telegraph 9 years, 11 months ago #1978

  • teknik
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Samuel Morse invented a telegraph system that was a practical and commercial success.

A telegraph is a communications system in which information is transmitted over a wire through a series of electrical current pulses, usually in the form of Morse code.

A trained Morse operator could transmit 40 to 50 words per minute.
Automatic transmission, introduced in 1914, handled more than twice that number.
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