A Great Invention of a Russian Scientist

Radio occupies one of the leading places among the greatest achievements of modern engineering. Professor A.S. Popov, the talented Russian scientist invented it and demonstrated the first radio-receiving set in the world on May 7, 1895. It is on this day that we mark the anniversary of the birth of the radio.

By his invention, Popov made a priceless contribution to the development of world science. Nearly at the same time an Italian inventor G. Marconi, who moved to Great Britain in 1896, got an English patent on using electromagnetic waves for communication without wires. But A. S. Popov did not patent his invention at that time, so the world considered Marconi to be the inventor of the radio. But in our country it is A.S. Popov who we by right call the inventor of the radio.

A.S. Popov was born in the Urals on March 16, 1859. First he studied at the seminary in Perm and then went to the University of St. Petersburg. In his student days he worked as a mechanic at one of the first electric power-plants in St. Petersburg which produced electric lights for Nevsky prospect.

After graduating from the University in 1882, A.S. Popov remained there as a post-graduate at the Physics Department. A year later he became a lecturer in Physics and Electrical Engineering in Kronstadt. At that time, he won recognition among specialists as an authority in this field.

When Hertz published his experiments proving the existence of electromagnetic waves, A.S. Popov thought of a possibility of using Herzt waves for transmitting signals over a distance. Thus the first wireless (radio) receiving set was created. Then Popov developed his device and on March 24, 1896 he demonstrated the transmission and reception of a radiogram consisting of two words: Heinrich Hertz. On that day the radio-telegraphy converted from an abstract theoretical problem into a real fact. A.S. Popov did not live to see the great progress of his invention. Popov’s invention laid the foundation for futher inventions and improvements in the field of radio engineering.

 

Контрольная работа № 2

 

Проработайте следующие разделы по учебнику:

1. Активный залог – формы Indefinite (Present, Past, Future); формы

Continuous (Present, Past, Future); формы Perfect (Present, Past, Future).

2. Модальные глаголы и их эквиваленты.

3. Определительные и дополнительные придаточные предложения

(союзные и бессоюзные); придаточные обстоятельственные

предложения времени и условия.

4. Интернациональные слова.

5. Пассивный залог – формы Indefinite (Present, Past, Future)

I вариант

I. Перепишите следующие предложения; подчеркните в каждом из них

глагол-сказуемое и определите его видо-временную форму и залог.

Переведите предложения на русский язык.

 

1. This workshop is producing several types of minicomputers now.

2. Science has become a leading factor in the progress of mankind.

3. We were making our experiment in the laboratory for two hours yesterday.

4. By the beginning of the year, the changes in the global climate and water

balance had brought about serious changes in the environment.

 

II. Перепишите следующие предложения; подчеркните в каждом из них

модальный глагол или его эквивалент. Переведите предложения на

русский язык.

 

1. One must have a very good knowledge of general engineering subjects to

become a good engineer.

2. They should provide our laboratory with all the necessary instruments.

3. Atoms of different kinds can join together in different ways.

4. Morse discovered that it was possible to send telegraph messages as sounds.

5. Our group will be allowed to use new laboratory equipment next term.

 

III. Перепишите следующие предложения с определительными и

дополнительными придаточными предложениями. Обратите внимание

на бессоюзные придаточные предложения, переведите предложения на

русский язык.

 

1. Experiments show that all gases expand when heated.

2. The chief engineer believed we should be working at that problem for a

month the following summer.

3. The devices our country produces are known all over the world.

4. The phenomenon Oersted pointed at interested Ampere greatly.

 

IV. Перепишите и письменно переведите текст на русский язык.