1. What's the Russian for:

to spin, symmetry, to mount, gimbal, mutually, rotation, spinning axis, suspension, immobile, swing, neutral, inherent, friction, earthly, precession, counter-clockwise.

2. Answer the following questions: 1) What does gyroscope mean?

2) What is the way of suspending the gyroscope? 3) What are the basic properties of a free gyroscope? 4) Is there a special rule of poles which is used for determining the direction of

poles?

5) Explain the rule of poles.

6) How can the rate of precession of the gyroscope axis be estimated?

3. Match words with their meanings: 1) diagram a) general law of cause and effect 2) principle b) not exactly divisible by two

3) phenomenon c) reasoned account offered to explain facts

4) odd d) design or plan to explain something

5) theory e) treatment shown towards other things

6) behavior f) thing that is known to exist by the senses

4. Discuss the following topics; 1) The way of suspending the gyroscope. 2) The peculiar features of a free gyroscope.

Lesson 8. The navigational console

1. Read the following words:

concerned remainder passage

half route passenger

immediately stowage bridge

manufactured underneath zig-zag

ready-use workable log

2. Grammar. Сложные предложения.

1) Were I you, I should do the same. Had he been here, he would help us.

Should the wind stop, we shall leave the port.

2) Some scientific and technical problems can be solved without a computer but it would require millions of mathematic operations.

3) An electronic computer can carry out several thousand arithmetical operations in one second, and a great number of complicated problems have already solved with the help of computers.

4) Computers represent a new branch of science, the first of them having appeared in 1950s.

Numbers are represented as a sequence of impulses, and a radio- technical scheme counts them carrying out addition, subtraction, multiplication and division, higher mathematical calculations being reduced to these four operations.