Radiophysics. Халюшева Г.Р. - 24 стр.

          1. We know Popov to have demonstrated his device at a meeting held at St.Petersburg University in 1895. 2. He
expected the audience to realize the advantages of his device as an apparatus for transmitting signals. 3. Scienists and
military men present at the sitting believed the new device to be efficient. 4. They suggested Popov to perfect it by
increasing the range of its action. 5. Having explained the principle of operation of his device, Popov asked them to watch
its operation attentively. 6. He wanted them to get an idea of how rapid electric oscillations could be used for transmitting
signals. 7. Popov made his new device serve two purposes: to send signals and record the received signals. 8. We suppose
Popov to have been working very hard at the problem of radio communication. 9. When the apparatus was tested on
battleships, the observers could hear and see the device successfully perform both functions, namely, sending and receiving
audible signals. 10. Thus Popov made the Naval authorities believe in the necessity of equipping all battleships with
wireless apparatuses. 11. Several times specialists watched Popov manipulate his device and heard him explain the principle
of its operation. 12. On many occasions did the members of the commession see him send and receive signals, the
impression produced by the demonstration being so great that each time they made him repeat the interesting experiment
over and over againg.

         5.4.5    Reproduce the text

       5.4.6      Translate the following sentences into Russian paying attention to the meaning of the articles where
 necessary


         1. The two facts you have just mentioned have brought about great changes in industry. Let us consider only the
changes which have been brought about by the use of electricity in chemical processes. 2. Where has the new machine so
much spoken about been installed? – It has been installed in the plant it was built for. 3. In our laboratory we deal with the
materials which can withstand high temperatures. 4. This is a new radar set. The set can perform scanning of an area by a
beam of microwaves. 5. Popov constructed an apparatus which could receive electromagnetic waves at a distance. The
apparatus was approved of after having been sucessfully tested. 6. As the apparatus was intented for receiving signals, it
was called the receiver. 7. Popov provided his receiver with an antenna; the antenna, made of a length of wire, increased the
range of his receiver several times. 8. One day news was spread among the staff of the Naval office that an apparatus
capable of receiving audible signals saved a battleship in the Black Sea by informing the shore officers of the signals
received from the sinking ship. On hearing the news Admiral Macarov declared radio telegraph to be of great importance
for the Navy.

         5.4.7    Write a composition about an eminent Russian inventor

        5.4.8     Read and translate the following dialogue. Remember the meanings and use of "either" and
"neither"


          A: Do you know what the words either and neither mean?
          B: Yes, I do. Either means "каждый", "любой", "любой из двух",while neither stauds for "ни один (из)".
          A: That's correct. Can you give examples?
          B: Yes, I can. For example: There is a member of lecture rooms on either side of the corridor. Which of these two
dictionaries may be used for translating a technical text? – You may use either.
          A: And in what way is either translated when it is connected with or? For instance: "John, bring some dictionaries
either from the library or from the reading room, please".
          B: Either... or ... means "либо...либо", "или...или".
          A: Now, let us speak about neither; it is the negative form of the pronoun either, meaning "ни тот ни другой ".For
instance: I was offered two books, but I took neither of them, as I did not like them.
          B: And neither connected with nor means "ни...ни", for example: These problems seemed difficult neither to my
friend, nor to me.
          A: Are these words used in any other way?
          B: Yes, they may be used in short negative sentences such as: "I don't like this book", said Peter. – "Neither do I,"
said Ann, which means "мне тоже (не нравится)". "I shall not go to the park tomorrow. He won't go either " "он тоже (не
пойдёт)".