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V. Answer the questions to check your understanding of the text:

1. What kind of apparatus did Popov succeed in constructing?

2. Where was Popov allowed to demonstrate his device?

3. How was Popov going to perfect his device?

4. When was Popov’s new apparatus tested?

5. Where did Popov expect the wireless apparatus to be used?

6. Who assisted Popov in constructing an apparatus capable of receiving audible signals?

7. How was the usefulness of radio telegraph proved?

8. What are the basic principles of radar?

VI. Consider the following statements whether they are true or false. Find the part of the text that gives the correct information:

1. Popov was the first to use practically the results obtained by Hertz.

2. Popov demonstrated his new apparatus to prove the possibility of radio communication.

3. The government rendered the inventor assistance in carrying out experiments.

4. In 1899, assisted by Ribkin and Troitsky, Popov constructed an apparatus capable of receiving audible signals.

5. Popov built the first radio station in the world.

6. During World War II the radar was constructed.

7. It’s possible to overestimate the importance of wireless and predict the possibilities of its future development.

VII. Use the text to find the English equivalents for the following word combinations:

1. працювати в дуже складних умовах

2. для виявлення місцезнаходження об’єктів

3. йому дозволили продемонструвати

4. пропозиції від закордонних комерційних компаній

5. надавати допомогу

6. як це часто бувало

7. щоб довести можливість радіозв’язку

8. на відстані трьох кілометрів

9. було б забезпечено надійним засобом зв’язку

10. щоб використовувати на практиці отримані результати

VIII. Match the terms to their definitions and memorize them:

1

electricity

a

number of people united for business or commerce

2

scientist

b

explanation of the general principles of an art or science

3

object

c

one saving of a pendulum or other object or of an electric charge

4

apparatus

d

extent; distance between limits

5

company

e

all the phenomena associated with electrons and protons

6

inventor

f

sth thought out, invented or adapted for a special purpose

7

oscillation

g

person expert in one or more of the natural or physical sciences

8

theory

h

set of instruments or other mechanical appliances put together for a purpose

9

range

i

sth that can be seen or touched; material thing

10

device

j

a person who invents things

IX. Give verbs corresponding to the following nouns. Choose five verbs and make sentences:

construction, communication, application, invention, production, fabrication, foundation, creation, organization, discussion, recommendation, graduation, preparation, explanation, examination, determination, initiation, reflection, transmission, proposition

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