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Many cases it was extremely difficult and inconvenient to change them. At last in 1940
Physicist William Shokli and its employees from company "Bell" laboratory have tried
To use in electronic amplifiers not vacuum lamps, and semi-conductor
Systems. Their decision has led to progress in understanding of, how it
Streams it in semiconductors through "holes" in their crystal
To structure. Though these researches have begun with rather practical problems
Increases of reliability of telephone service, the result had appeared quite
The fundamental investment in a science, awarded the Nobel Prize.
Industrial technologies: physics use
Still before how Dalton has found the approach to ordering of chemical knowledge,
Physicists have reached the important results though this knowledge was such that
It was clearer how to use it in astronomy, - instead of in an everyday life.
Only after 1875 of the physicist has started to influence industrial technologies.
But seeds of the future influence were it earlier. In the beginning of a XIX-th century of research
Electricity have led to a number of the opening having fundamental significance for
The modern physics. The electric current, galvanic batteries have been opened and
The phenomenon of an electromagnetic induction. It F.B.Morze has found it practical
Application in telegraph already to a civil war in America. After the civil
Wars Thomas Edison, George Vestingauz, Elija Thomson, Charles Stejnmetts and many
Others have found application of an electricity in illumination and in many other areas,
And in 1890th years in the industry have started to use electric motors.
The latest researches of an electricity became a part of history modern
The theoretical physics. In 1864 James Clark Maksvell, starting with
Mathematical calculations, has predicted existence of electromagnetic waves.
Gustav Gerts in 1886 has experimentally confirmed assertions of Maksvella, and in
1895 Wilhelm Konrad Rentgen has opened H-beams. The same year Guglelmo
Marconi used waves of Hertz for transfer on wireless telegraph.
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