G7. Analyze the structure of the sentences and translate them.

1. That any gas can be turned into a liquid by pressure is known to everyone. 2. That heat flows from a place of higher to one of lower temperature but never in the reverse direction should be kept in mind. 3. That we use countless machines today needs no proof. 4. How heat is transferred by convection can be illustrated by a stove. 5. One of the most important phenomena in nature is the transmission of energy from one point to another. 6. An important characteristic of radiation is that it can occur in a vacuum. 7. The question is whether the temperature of the air is high enough to ignite the particles of the injected fuel. 8. The question is what a diesel is, how it works and how it differs from a gasoline engine. 9. Now let’s trace what happens in a typical two-cycle diesel engine. 10. Experiments show us that there is very little attraction between the molecules of any gas. 11. The bell or other alarm signal operates only when the circuit is broken. 12. If we want to get a lot of power out of a particular engine, we run it as fast as it can go safely. 13. As the warm air rises, cooler air takes its place. 14. Properties of steel depend also on heat treatment the metal has been subjected to. 15. This is the principle the mercury thermometer is based on. 16. This part of mechanics, which includes both the study of motion and the forces that bring about the motion, is called dynamics. 17. A diesel engine is that type of internal combustion engine which injects fuel oil in a finely divided state into a cylinder within which air has been compressed to a high pressure and temperature. 18. One of the reasons why people before the 18^th century knew hardly anything about gases was that they were difficult to handle. 19. Everyone who has taken snapshots knows that the lens focuses the light so that a picture is formed on the film. 20. It is a highly important instrument as it serves to indicate to the pilot whether his engine is operating efficiently. 21. Another remarkable fact is that the instruments not only show the operator how things are at the moment, but warn him of impending disturbances. 22. One should clearly understand that the direction and magnitude of the electric forces are represented by the lines of force. 23. It has been assumed in the proceeding discussion that all of the forces lie in the same plane. 24. It was on June 2, 1875, that the first sounds were transmitted by Bell and Watson. 25. It is this energy that is defined as the ability to do work. 26. Never before has a rocket reached the moon! 27. It is only by performing a large number of experiments and building up data, much of which must appear as irrelevant, that progress can be made. 28. In the case we are considering, the forces affecting the body remain unchanged. 29. Everyday observation shows us that the effect moving air produces on a body depends on the velocity of the air or the velocity of the body. 30. In the first stage of the long journey of the sound, the microphone transforms the music or speech it hears into electrical currents. 31. The ratio of useful work done by an engine to the heating value of fuel it consumes is called thermal efficiency of the engine. 32. The retarding force which stops an automobile when its brakes are applied is the friction force between the tires and the road, and the larger the coefficient of friction, the greater is the available force.