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the text on how developed telegraf.Posle as Benjamin Franklin's ideas about electricity, many scientists have been published are interested in this energii.Oni wanted to find the answer
may be to use electricity to create rapid and effective system of long-distance communication?
Experiments have shown that this is possible. Danish scientists have discovered that electricity can move the needle from left to right and that the needle may be pointed to letters on bumage.Potom two British scientists have sent a message from the electric telegraph at a distance of over 1.6 kilometers. Samuel Morse, also conducted experiments with electricity .Snachala it is connected to an electric wire with a pencil, he made wavy linii.Zatem he invented the Morse code dots and tire.Telegrafnye wires stretched from the Atlantic to the Pacific okeana.Potom scientists thought how to send a letter across the ocean .Uchenye decided to lay cable under the Atlantic ocean, 3 failure .But they did send a message from Newfoundland to Ireland.
Later, the cables were laid in Central and South Amerike.Seychas information can be sent instantly in almost every country in the world.
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