The Radio Is an Invention That Changed the World
A rifle shot through the silence in rural Italy, a signal that convinced Guillermo Marconi that the incomplete device he was using had succeeded. The electromagnetic waves propagating in me were picked up by a receiver at a distance of two and a half kilometers, which was the case, although at that time no one could fully understand all the signals to be fired from a rifle. One tablet launched a technology – radio communication, which has radically changed our world ever since.
The Properties of Electromagnetic Waves:
Many scientists have already studied the properties of electromagnetic waves. 1831 In, the English physicist Michael Faraday demonstrated that an electric wave can create a magnetic field, and can generate current in a second circuit, which is separated but close to it. 1869 In, Scottish physicist James Maxwell Established the theory that the energy generated by such circles could spread in the form of waves. Just as light waves on the surface of a pond, but at the speed of light, later, by generating electromagnetic waves and discovering them at close range, the German physicist Henrik Hertz (later New Zealand’s Ernst Rutherford), Like Lord Rutherford, confirmed Maxwell’s theory, but by modifying and improving the available device and adding to it his personalized aerial, Marconi was able to transmit telegraphic signals over long distances. Wireless telegraphy had begun.
Marconi Founder of Wireless Telegraph and Signal:
In May, 9-year-old Marconi came to England from Italy, where he was introduced to William Press, chief engineer of the General Post Office, who was interested in using Marconi’s system for maritime communication between such locations There was, which could not be paired via cable. He offered Marconi the help of technicians and laboratories to use his own experiments. Marconi founded the Wireless Telegraph and Signal Co., Ltd., with the goal of moving to a more advanced system.
A 7 km long radiotelegraphic link was established between Cornwall and White Island in the south of England, and the ever-impossible task of laying a network of radio waves on the curvature of the earth was demonstrated. Because electromagnetic waves travel parallel to the horizon. So the signals will not be received across the horizon. That’s when the first major applications for radios began to arrive. In addition to installing radio sets on six ships, the British Navy also ordered the construction and operation of six evil stations. Succeeded in crossing the Atlantic, the future of invention was certain.
Initially, wireless telegraphy could not transmit words or music, only transmitted Mars code. This made wireless telegraphy (wireless messaging) radio as we know it today. In 1908 In the United States, Reginald Fessenden played music that was picked up by planes 8 kilometers away. Arranged to broadcast live. A year ago, for the first time, clock-running signals were broadcast from the Eiffel Tower in Paris, France. I was hit, the first time the survivors were rescued with the help of radio.
In many countries, however, radio has become a government monopoly. In Italy, the Mussolini government saw radio as a tool of political propaganda and banned its citizens from listening to foreign broadcasts. During the broadcast of a fictional science fiction story in the United States, Arsene Welles spread fear among the people, some of whom thought that the inhabitants of Mars. They have landed in New Jersey and those who oppose them. They are using a deadly “hot ray” to kill them all!
Hundred Years of Radio:
1956 I used to listen to people’s favorite entertainment radio in Italy. Despite the success of television, radio is still very popular. In most European countries, 3 to 4 percent of the population listens to the radio for information and entertainment. It is estimated that in the United States, 3% have radios in cars, 3% in bedrooms and more than 5% in kitchens. No one can say for sure what the future holds for this field, but radio technology is constantly evolving, so other great advances are expected.