Who invented the telegraph and when, and who invented the telegraph?

Using electromagnetic waves as carriers, human beings can transmit and exchange information over long distances through coding and corresponding electrical processing technology. Telegraph communication was first successfully experimented in 1837 by the American Morse. The father of the telegraph.

In the thirties of the 18th century, due to the rapid development of railways, there was an urgent need for a communication tool that was not affected by the weather, had no telegraph restrictions and ran faster than trains. At this time, the basic technical conditions for the invention of the telegraph (batteries, copper wires, electromagnetic inductors) were also in place. In 1837, Cook and Wheatstone designed and manufactured the first cable telegraph in England, and continued to improve it, and the speed of transmission continued to increase.

This telegraph soon found an application in railway communications. Their telegraph system was characterized by messages pointing directly at the letters.

Although the development of the telegraph began as early as the beginning of the 19th century, the invention of the practical electromagnetic telegraph was mainly attributed to the British scientists Cook and Wheatstone and the American scientist Morse. In 1836, Cook made an electromagnetic telegraph and applied for the first telegraph patent the following year. Wheatstone was Cook's collaborator.

Morse was originally a first-class painter in the United States, out of interest, he developed a prototype of the electromagnetic telegraph in 1835, and later invented the "Morse code" composed of dots and strokes in 1838 according to the two signals of electric current, electric spark and no electric spark when it is broken.

It's so hard, I guess you can't wait for the exact answer you want.

Samuel Spramble Beam Morse. The telegraph was one of the earliest ways to use electricity to transmit information, and it was a reliable and instantaneous long-distance communication method. Telegraph messages are sent in the form of electrical signals over a dedicated switching line, which is coded instead of words and numbers, usually Morse codes.

Samuel Morse invented the telegraph and is known as the father of the telegraph. The telegraph was one of the earliest means of using electricity to transmit information, and it was developed in Britain and the United States in the thirties of the 19th century. Telegraph messages were sent in the form of electrical signals over a dedicated exchange line, which was coded instead of words and numbers, usually Morse codes.

With the popularization of **, fax, etc., the telegraph has been rarely used.

The inventor of the telegraph was Morse.

Samuel Finley Breese Morse (27 April 1791 – 2 April 1872) was an American painter of great acclaim and the father of the telegraph.

Born on April 27, 1791 in Charleston, Massachusetts, Morse began his career as a painter. In 1839 he released his first invention, the "Morse" code. On May 24, 1844, the first telegram in the history of mankind was "made by God".

The principle of the telegraph

Sending is the transmitter according to the requirements of sending information, and send out currents of different frequencies and wavelengths, so that the electrons on the transmitting antenna constantly change the direction of rotation according to the frequency, the tail of its magnetic field lines is constantly broken and popped, and the two ends of its moving magnetic field lines continue to attract space free Udanite particles to make themselves grow, forming dense plane "waves" of different frequencies and wavelengths in all directions of space.

When this "wave" touches the radio receiving antenna, it drives the free electrons on its surface to spin around the antenna according to the frequency and wavelength of the "wave" to form an alternating current, and this weak current is amplified to become the receiving information of the receiver.