electric telegraph for a distance of more than 1. 6 kilometers. )
5) What did S. Morse invent? (He invented a code that used dots and dashes for the letters of the alphabet. )
Telegraph.
Benjamin Franklin, an American who is famous for his interesting and useful inventions, published his ideas about electricity in 1752. Scientists in many countries became interested in this wonderful form of energy. They wanted to find the answer to a very important question: could the electricity be used to develop a fast, efficient system of long-distance communication? Experiments proved that electricity could travel instantly over a very long piece of wire. But a note that was written on a piece of paper couldnt be put into a wire. How could electricity be used to send a message? A Danish scientist discovered that electricity could move a needle from left to right and that the needle could be pointed at letters on a piece of paper. Then a German government worker made up a code system that could be used with an electric needle. In 1837 two English scientists sent a message by electric telegraph for a distance of more than 1. 6 kilometers.
Samuel Morse, an American portrait painter, was experimenting with an electric telegraph too. At first he connected a pencil to an electric wire. When the electricity came through the wire the pencil made wavy lines. Then Morse invented a code that used dots and dashes for the letters of the alphabet. Finally, he discovered that telegraph messages did not have to be written, they could be sent in sound. On May 24, 1844, the first long-distance message was sent by telegraph for 64 kilometers.
Telephone.
1) Did Alexander Graham Bell want to be an inventor? (A. G. Bell never planned to be an inventor, he wanted to be
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