Основы английского языка для судовых электриков | страница 28

- high sensitivity due to a large number of turns in the secondaries;

Fig. 2. Inductance-bridge transducer.

- possibility of measuring very small displacements up to a

micrometer; ,s

- absence of electric contacts which render these devices highly reliable where frequent make & break of control circuits is anticipated.

Inductance transducers are very popular & exist in many versions to meet various designs of equipment.

37. /40 мин./ Внимательно прочтите следующие три рассказа и напишите ответы на вопросы.

Matter of a Few Seconds

1. How did T.A Edison make one of his greatest discoveries -the electric bulb? 2. What did Sir Isaac Newton think about while getting his lunch ready? 3. Why was Newton called an absent-minded professor? 4. What, did M.V. Lomonosov study in Germany?

Now I feel I must tell you,how Thomas A.Edison /1847-1931/ made one of his greatest discoveries. It happened like this. One summer evening in 1879 a glow worm sat on a pear which Mr Edison was about to eat. This incident set him thinking for a time. Then he exclaimed joyfully: “Of course! Now 1 know!”, &...the electric bulb was invented...

An Absent-Minded Professor

Sir Isaac Newton /1642-1727/ was what you may call an “absent-minded professor”. One day, when Mrs Newton came home unexpectedly, Sir Isaac Was getting his lunch ready but... apparently he was not thinking of what he was doing; His thoughts were on his corpuscular theory, splitting of light & the law of gravitation. The gravitation constant - he whispered - is the accelaration per second that a mass of one gram causes at a distance of one centimetre - & little he did seem to realize he was holding an egg in his hand. Presently, as he looked at it, steam was coming out of a small pot where his watch'was boiling hard...

A Scientist from a Peasant Family

Mikhail Lomonosov/1711-1765/ was born into a peasant family in a village near Arkhangelsk not far from the sea. In December 1730 he ran away from home, his destination Moscow, to fulfil his dream of studying. By pretending to be the son of a priest, Lomonosov enrolled,in the Slavo-Greek-Latin Academy. He completed the Academy’s eight-year course in just five years & was theh sent to St.PetersbuTg, to the Academy of Sciences’ University there; In 1736 Lomonosov was sent to study in Germany. He studied chemistry, physics, mechanics, mining techniques, & languages, & also began to write poetry. Returhing to.Russia in 1741 he resumed work at the Academy of Sciences. He made a large number of discoveries in various fields of knowledge & was also a leading figure in Russia’s enlightenment.