invention of radio was the period of rapid scientific and technological revolution.Along with some other innovations, wireless communication has become an important stage in the overall human progress, affecting both the picture of the technological world and the socio-economic, has given mankind new possibilities.
Background Wireless
first step, predetermined the invention of radio, the stage of opening in 1883 by Thomas Edison effect of spraying a substance with the filament light bulb.The inventor noticed that applied to the electrodes a positive voltage forms a current in a vacuum between the filament and the electrode.That is, it is the first time found that current can pass through the external environment, without the aid of wires.This process was called "Edison effect."In 1868, the American scientist Mahlon Loomis was first created a prototype of a wireless communication.In fact, this was a system of transmitting and receiving antennas, the length of 22 km.However, it was too cumbersome and was not even a full line.To create a complete wireless communications had yet to learn to use the natural atmospheric electricity to transmit information over a distance.Important for further technological innovation was the creation and James Clerk Maxwell in 1865, electromagnetic field theory, which relied Alexander Popov and Guglielmo Marconi.However, at that time it was still only a hypothesis, not all accepted.The theory of electromagnetic waves almost was confirmed when in 1887, Heinrich Hertz showed the world its generator and the resonator electromagnetic oscillations.The works of these physicists have become an important foundation for the last step in the creation of the unit, they are all to some extent shared by the invention of radio.Another thing is that all these attempts were only laboratory experiments have not been brought to its logical conclusion.
invention of radio: So who was the first?
Our country has traditionally been considered that the right belongs to the pioneer Alexander Popov.At the same time, the West will tell you that it is the Italian Guglielmo Marconi invented the radio.Both scientists almost simultaneously improved unit Hertz.Even the solution they were almost identical.They are both added to the device grounding and antenna, as well as the so-called coherer - a glass tube that acts as a resistor at the ends of which takes only the extreme values and execute commands on and off the machine.In 1895, it was announced the invention of radio Popov.The presentation took place on May 7 in the Russian Physical and Chemical Society.And in the spring of that year Marconi holds an identical experiment, but the first time to apply for a patent for the invention.Thus, the invention of radio is uniquely difficult to give just one person, it was the result of a long development of the theory of electromagnetic waves and almost simultaneously the epitome of it in practice.
