- •Учебное пособие
- •Часть II 6
- •Часть II
- •From the history of the origin of science
- •A lesson in the history of little things
- •Structure of matter
- •States of matter solids, liquids and gases
- •What is an electron?
- •Gravitation
- •Uses of electricity
- •Solar energy
- •Atomic energy.
- •Peaceful atom
- •The telegraph
- •Modern electronics
- •Cosmonautics
- •Radio-electronics today
- •Astronomy and radio
- •The future of cybernetics
- •Our solar family
- •Life in space
- •The morning star (venus)
- •The moon
- •Why does the moon follow us when we drive.
- •Why is the sky blue?
- •What is the milky way?
- •Comets.
- •Comet in our universe.
- •Eclipse experiment may explain why sun is so hot
- •Man and his environment
- •The environment
- •Pollution
- •Did dragons ever exist?
- •How do we know what dinosaurs were like?
- •How did dinosaurs evolve?
- •Tornadoes
- •Computers.
- •The history of personal computing
- •Masters of invention
- •What's your opinion of computer games?
- •Life in their hands
- •Internet
- •Will the internet affect the practice of medicine?
- •By bill gates
- •Innovation feeds success in the pc industry
- •The checkered flag of the leader
Radio-electronics today
Much of our successes in the field of space research is due to radio and electronics. This is why on May 7, Radio Day, we honour the memory of A. Popov, the great Russian scientist who was the first in the world to invent radio as a means of wireless communication. Today, radio or more widely electronics, a very young and a very promising science, has become a powerful tool of progress.
It will give us a deeper knowledge of the properties of outer space. Radio has already helped man to learn more about the sun's atmosphere, the atmosphere of many planets, it enabled our cosmonauts to locate their position in space, and there is radio communication not only between the spaceships and their home bases, but also between the spaceships themselves.
1 Radio is not the only carrier of information in space. There are infra-red and ultra-violet radiation, X- and gamma-rays, elementary particles and fields, etc. The time is not so far off when these and other carriers will be used for space communication — a great advance comparable with Alexander Popov's achievement in putting radio waves at the service of mankind, when he built the first radio receiver.
There are many more uses for electronics besides communications. A good deal of progress made in space would not have been possible without electronic computers making thousands upon thousands of operations a second. They solve logical problems, supply
information on many aspects of science and technology, translate from one language into another, automatically control industrial processes, etc. In medicine electronic devices help to diagnose the disease and find the best treatment.
COMMENTARY
is due to radio обусловлен (а) радио
a good deal of progress made in значительный прогресс, достигнутый
thousands upon thousands миллионы
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 of1 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,2 peace and progress, for the benefit of mankind. Astronomers hope that radio waves will continue helping them to reveal the mysteries of the universe.
Notes:
Which were undreamt of – о которых и не мечтали
On behalf of science – во имя науки