A killer trying to escape with a train to London. But it was soon sent a wire about the person's traits to the police in London. By the time he got off the train, the Police had been waiting to catch him. The first telegram machine still uses the regular alphabet letter.
Then the wire delivery method was perfected by Samuel F.B Morse in America. He demonstrated the usage of his system in 1844, when telegram kawati installed between New York and Washington. Messages are sent by pressing a button that generates a code, consisting of dots and lines. This code is then known by the name of Morse Code. Below we derive just a sample of morse code.
Initially only one message can be sent. Then by Stearns in 1872 sent two messages once sent. Thomas Edison found how to send four messages at once. Modern telegram equipment can transmit thousands of words every minute in two directions through a wire.
Source: Kitab Emas "Penemuan-penemuan Dulu sampai Sekarang"
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