34
current. Moreover, the lower the temperature, the less resistance the material
had. 3. The resistance continued to fall in liquefied nitrogen. To continue the ex-
periments, they needed liquid helium. To obtain it was quite a problem at that
time. So the experiments were stopped. 4. But it was this compound of copper,
lanthanum and oxygen that proved to be a … for which the Swiss physicists
were honoured with a Noble Prize in 1987. 5. Later neither efforts nor money
were spared (жалеть, экономить) for the study of the ... materials. Moreover,
there were no longer any problems with helium.
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Упражнение 6.
Найдите русские эквиваленты в b) для словосоче-
таний из а):
а) the physics discoveries, discoveries that led to, the scientific advantage,
advantage could well come to nation, to bring the mankind to, mercury wire,
unexpected phenomenon, to return to normal state, by passing electric current,
by applying magnetic field, to make a great contribution, they introduced a
model, a model proved to be useful, a theory won for them the Nobel Prize,
research in superconductivity, research became especially active, the achieved
record of 23 K;
b) исследования особенно активизировались; исследования в области
сверхпроводимости; теория, за которую они получили Нобелевскую пре-
мию; привести человечество к ...; преимущество в науке; открытия в об-
ласти физики; достигнутая рекордная отметка в 23 К; открытия, которые
привели к...; преимущество могла бы получить нация (страна); ртутная
проволока; вернуться в обычное состояние; пропуская электрический ток;
внести большой вклад; неожиданное явление; они предложили (ввели) мо-
дель; прикладывая магнитное поле; модель оказалась эффективной.
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Упражнение 7.
Ответьте на вопросы.
1. What is this text about?
2. What is the phenomenon of superconductivity?
3. Who was the first to discover the phenomenon?
4. What scientists do you know who have worked in the field of
superconductivity?
5. What materials are the best superconductors?
6. Is it possible to return superconducting materials to the normal state?
7. How can it be done?
8. In what fields of science and technology can the phenomenon of
superconductivity be used?
Достарыңызбен бөлісу: