Every hour in every day and all over Earth there are millions of waves of radiant waves that penetrate the atmosphere at a speed equivalent to 300 million meters per second, or 186,000 miles per second. In order to be able to hear these waves, we have to have a radio device that turns the electrical signals that are picked up by the receiver's antenna to the sounds we hear in its Speakers.
These waves can be transmitted at different frequencies and different wavelengths. Music and sound are not the first to be transmitted by radio. They were preceded by a radio transmitter with dots and dashes, represented by the Morse alphabet before the invention of the microphone and electronic LED. There are two kinds of earth and cyan waves. Earth waves cannot follow the curvature of the earth. But a relatively short distance of about 350 kilometers so it can not be used for wireless transmission between distant countries. The transmission of the ripples to distant distances makes it possible to take advantage of their reflection on the ionosphere at an altitude of more than 80 kilometers from the Earth's surface. These reflected waves are called celestial waves. When transmitting short radio waves, these waves are reflected on the ionosphere and can be received hundreds of kilometers away from the transmitter. These waves often bounce back to the ionosphere with subsequent reflections towards the earth in a series of leaps called Flipping.
If the ionosphere reflects all the celestial waves no matter how limited it was possible to communicate radically to the astronauts who go beyond this class. As the radio astronomy developed the inability of radiant radiation emitted from distant stars to penetrate the atmosphere of the earth. Radio broadcasts are not limited to news broadcasts, musical programs, Entertainment is also a means of communication two-way mission between the aircraft and control towers, for example, or between ships and their call centers on the beach.
Heinrich Hertz (1857 - 1894) German physicist proved by his experiments the existence of the waves of the sport and that their characteristics similar to the characteristics of the waves of light and the research and experience was a great advantage in the invention of the radiotelegraph.
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| Heinrich Hertz 1857 to 1894 |
These waves can be transmitted at different frequencies and different wavelengths. Music and sound are not the first to be transmitted by radio. They were preceded by a radio transmitter with dots and dashes, represented by the Morse alphabet before the invention of the microphone and electronic LED. There are two kinds of earth and cyan waves. Earth waves cannot follow the curvature of the earth. But a relatively short distance of about 350 kilometers so it can not be used for wireless transmission between distant countries. The transmission of the ripples to distant distances makes it possible to take advantage of their reflection on the ionosphere at an altitude of more than 80 kilometers from the Earth's surface. These reflected waves are called celestial waves. When transmitting short radio waves, these waves are reflected on the ionosphere and can be received hundreds of kilometers away from the transmitter. These waves often bounce back to the ionosphere with subsequent reflections towards the earth in a series of leaps called Flipping.
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| Guglielmo Marconi (1874 – 1937) |
If the ionosphere reflects all the celestial waves no matter how limited it was possible to communicate radically to the astronauts who go beyond this class. As the radio astronomy developed the inability of radiant radiation emitted from distant stars to penetrate the atmosphere of the earth. Radio broadcasts are not limited to news broadcasts, musical programs, Entertainment is also a means of communication two-way mission between the aircraft and control towers, for example, or between ships and their call centers on the beach.
Heinrich Hertz (1857 - 1894) German physicist proved by his experiments the existence of the waves of the sport and that their characteristics similar to the characteristics of the waves of light and the research and experience was a great advantage in the invention of the radiotelegraph.
Guglielmo Marconi (1874 – 1937)An Italian electrical engineer who invented the wireless telegraph in 1895 began his experiment in Britain in 1896. He succeeded in transmitting a wireless signal to a distance of 15 kilometers and then completed sending a signal from three points representing the S in the Morse code from Cornwall to Newfoundland. He won the Nobel Prize in Physics in 1909.
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