Вопрос № 223244 - Английский язык

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Another Russian scientist Yablochkov made a great contribution to the development of electrical science. It was Yablochkov who created the principle of a transformer.lt is he who found the first practical application of the electric arc.
Thanks to Lodygin's great discovery, an electric lamp lights up our rooms.
Popov transmitted signals by means of electromagnetic waves and gave the world his great discovery - radio.
It is Lebedev who discovered and measured the pressure of light. The photoelectric effect was among the numerous discoveries of the famous Russian scientist Stoletov.
However, it is impossible even to list here the great inventions and discoveries that our scientists made in various fields of science and engineering.

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Radio was invented in Russia. The world’s first receiver was constructed in 1895 by the great Russian scientist Alexander Popov. There were no transmitters then, therefore his receiver could only pick up signals produced by lightning discharges during a thunderstorm. A. Popov demonstrated a device called a “storm indicator” at a meeting of the Russian Physico-Chemical Society in St. Petersburg on May 7, 1895. This day is marked now as Radio Day.

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Electricity is the power that has made possible the engineering progress of today. In fact, electricity has always been with a man, but only within the last few centuries he has learned to apply it.
One hundred years ago there were neither electric lamps, nor electric motors, nor telephone, nor radio. Now electricity is everywhere. We use electricity in our homes and in buildings where we work or study. Electric lamps light our rooms. The uses of electricity in our homes do not end with producing light. How many electric motors are working in our homes! Electric motors operate washing machines, refrigerators, vacuum cleaners, fans, clocks, and other electrical appliances.

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Electricity plays a very important part both in industry and in agriculture. We use electricity as a means of transportation and communication. A primitive man depended upon fire, smoke or other kind of signals to send his thoughts to his neighbour. And a modern man can talk with someone in some distance. In recent years electricity has made a great contribution to radio communication between the spaceships and also between the austronauts and the Earth. In addition to that we apply electricity in automation and in research. Much of today's scientific research depends on the solution of different difficult mathematical problems, some of which would require days to solve by the used methods. Electrically-operated computers now give the answers to these problems in seconds.

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Radio was invented in Russia. The world’s first receiver was constructed in 1895 by the great Russian scientist Alexander Popov. There were no transmitters then, therefore his receiver could only pick up signals produced by lightning discharges during a thunderstorm. A. Popov demonstrated a device called a “storm indicator” at a meeting of the Russian Physico-Chemical Society in St. Petersburg on May 7, 1895. This day is marked now as Radio Day.

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Alexander Popov found a way of transmitting Morse code signals. In 1897 he sent the world’s first wireless telegram over a distance of 600 m and four years later the range of transmission was increased to 150 km. Ever since, thanks to the work of many scientists of the world, the methods of transmission and reception have been constantly improved. Nowadays radio communication has no limits.