A.S.Popov, the Inventor of the Radio

A.S.Popov, the great Russian inventor, was born in 1859. By the time he graduated from the Petersburg University (1882) he had already possessed a broad knowledge of electrical theory as well as a wide experience in that field.

Working both as a scientist and a teacher, he always carried on some practical work, solving many practical problems such as the introduction of electricity into the Navy and others. Popov was one of the first to pay attention to the works of Hertz who proved by experiments the existence of electromagnetic waves. After many experiments carried out together with his assistant Ribkin the device Popov constructed began receiving electromagnetic waves at a long distance. By means of his receiver Popov could detect the waves at a distance of some meters and then kilometers. The receiver recorded waves generated by lightning discharges. While experimenting, the scientist found out that a free wire being connected to the receiver, the range of the latter increased. Thus he connected his first receiver to the first antenna.

On April 25, 1895, Alexander Popov demonstrated his device at the Russian Physico-Chemical Society. Having summarized the results of his experiments, Popov expressed his hope that the device, after being perfected, would make possible transmitting signals at a distance by means of rapid electrical oscillations. In summer 1895, Popov’s invention was successfully tested and in the same year he attached to the device an apparatus previously used for recording telegrams over the wire telegraph. In the following year this receiver was used at the electric power station in Nizhny Novgorod for warning about approaching thunderstorm. Soon the inventor demonstrated the transmissions of words over a wireless telegraph. This new demonstration proved to be of great importance.

In summer 1897, Popov successfully carried out his experiments at sea, having succeeded in effecting radio communication between the shore and the sea at a distance of 3 kilometer.

In this way the future wireless communication between the continents was being prepared. The year 1898 witnessed a new important invention made by Popov together with his assistants Ribkin and Troitsky, namely the reception of audible signals by means of a receiver. All these successful experiments having been completed, serious practical testing began.

Popov’s work drew attention in many countries. The wireless telegraphy is the result of Popov’s experiments. This fact was acknowledged in different countries.

8. Fill in blanks using the words from the text:

1. A.S.Popov is the … of the radio.

2. Being a student he had already possessed a broad … of electrical theory as well as a wide … in that field.

3. He solved many practical problems such as the … of electricity into the Navy and others.

4. Hertz proved by experiments the … of electromagnetic ….

5. Popov paid … to the works of Hertz.

6. Popov constructed a … receiving … waves at a long distance.

7. The receiver … the waves at a long distance and … waves generated by lightning discharges.

8. Noticing that a free wire … the range of receiver Popov invented the first antenna.

9. Popov hoped to … his device. He wanted it to transmit signals at a distance by means of rapid electrical oscillations.

10. In 1895, the invention was successfully ….

11. Then Popov … to the device an apparatus used for recording telegrams over the wire telegraph.

12. Later Popov demonstrated the … of words over a wireless telegraph.

13. His discovery … to be of great importance.

14. In 1897, Popov … in effecting radio communication between the shore and the sea at a distance of 3 km.

15. In this way the future wireless … between the continents was being prepared.

16. The reception of … signals by means of a receiver was another Popov’s important invention.

17. Popov’s … has changed the life of people all over the world.

18. In our everyday life we use a number of things … by Popov.

9. Find the sentences given in Russian in the text and read them:

1. А.С.Попов, великий русский изобретатель, родился в 1859 г.

2. Попов был одним из первых, кто обратил внимание на работы Герца, который экспериментально доказал существование электромагнитных волн.

3. При помощи своего приемника попов мог обнаруживать волны на расстоянии нескольких метров, а потом километров.

4. Летом 1895 г. Изобретение Попова было успешно испытано, и в том же году он присоединил к прибору аппарат, прежде используемый для записи телеграмм по проводному телеграфу.

5. В следующем году этот приемник был использован на электростанции в Нижнем Новгороде для предупреждения о приближающейся грозе.

6. В том же году он продемонстрировал передачу слов по беспроводному телеграфу.

7. 1898 год стал свидетелем нового важного изобретения, сделанного Поповым вместе с ассистентами Рибкиным и Троицким, а именно приема звукового сигнала посредством приемника.

10. Make the sentences from the text shorter expressing only the main idea:

1. By the time he graduated from the Petersburg University (1882) he had already possessed a broad knowledge of electrical theory as well as a wide experience in that field.

2. Popov was one of the first to pay attention to the works of Hertz who proved by experiments the existence of electromagnetic waves.

3. After many experiments carried out together with his assistant Ribkin the device Popov constructed began receiving electromagnetic waves at a long distance.

4. While experimenting the scientist found out that a free wire being connected to the receiver, the range of the latter increased.

5. Having summarized the results of his experiments, Popov expressed his hope that the device, after being perfected, would make possible transmitting signals at a distance by means of rapid electrical oscillations.

6. In summer 1897, Popov successfully carried out his experiments at sea, having succeeded in effecting radio communication between the shore and the sea at a distance of 3 kilometer.

7. The year 1898 witnessed a new important invention made by Popov together with his assistants Ribkin and Troitsky, namely the reception of audible signals by means of a receiver.

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