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chemistry as another branch of the subject. Many research workers were now
interested in physical chemistry because it offered the precision which was lacking *
in inorganic chemistry. At the same time, organic chemistry developed into a system
in which structure could be determined. Without the technique for such
stereochemical investigations inorganic chemistry lagged behind. Thus we find that
chemistry, because of its precision, were constantly attracting workers of inorganic
chemistry. People say that facts give a science its substance, but it is the theory which
provides its strength. It is owing to the development of the theory that inorganic
chemistry has before it such exciting prospects at the present time.
Notes
1. not the definition of Inorganic chemistry alone, but chemistry Itself— не только
определение неорганической химии, а химии в целом
2. an Integrated whole — единое целое
3. Wohler (1800-1882) — Вёлер, Фридрих — выдающийся немецкий химик,
пионер в области органического синтеза.
4. which was lacking — которой не хватало.
Текст 10
ASTRONOMY AND RADIO
The science of radio astronomy has become the most efficient of all methods of
probing the universe. It was the intense development of radio and radar techniques
that stimulated the development of radio astronomy and gave astronomy a new and
enormously powerful tool for the exploration of space.
The huge parabolic dishes of giant radio telescopes listening to the voices of
distant stars majestically dominate the landscape for many kilometres around.
Radio, telescope is an instrument so penetrating that it can receive radio waves
from distances of thousands of millions of light years away. With ordinary telescopes
it is possible to work only when the sky is not covered with clouds, whereas clouds
are no obstacle to radio telescopes.
Radio telescopes are supplied with a precise control system. It takes 15-20
minutes to make a full rotation of the huge reflector.
With the help of a young science—radio astronomy— the astronomers have
made great achievements which were undreamt of only a few decades ago.
Radio telescope can measure the temperature of planets, can probe the structure of
the planets and provides the astronomers with the data which could not have been
received without this wonderful device. In order to achieve better results, highly
sensitive reception devices were made for radio telescopes. Soviet astronomers use
radio waves to study celestial bodies on behalf of science,' peace and progress, for the
benefit of mankind. Astronomers hope that radio waves will continue helping them to
reveal the mysteries of the universe.
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