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Вопрос № 190539 - Английский язык

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Who used noble gases?
Варианты ответов
  • Thomas Edison and Joseph Swan made experiments using noble gases.
  • General Electric used them for producing the first commercial fluorescent lamps.
  • Michael Faraday created carbon-arc lamps using noble gases.
  • Claude and Moore developed light tubes with neon and argon.
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Вопрос задал(а): Анонимный пользователь, 10 Ноябрь 2020 в 00:07
На вопрос ответил(а): Анастасия Степанова, 10 Ноябрь 2020 в 00:07

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Вопрос № 1072611

Прочитайте текст.
Born in Edinburgh, the physicist James Clerk Maxwell has been described as the most brilliant scientist of the 1800s. His best-known work established a link between electromagnetism and light. This research later helped the German physicist Heinrich Hertz to build the first radio-wave transmitter. During his carrier, Maxwell produced new theories on many scientific problems of the day: the physical properties of gases; the nature of the planet Saturn’s rings; how humans perceive colors.
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What link did James Clerk Maxwell establish?
He established a link between physical properties of gases.
He established a link between new theories on many scientific problems of the day.
He established a link between colors.
He established a link between electromagnetism and light.

Вопрос № 151057

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Henry Cavendish was born in 1731 and died in 1810. He was an English nobleman who did scientific experiments as a hobby. In 1781 he made the important discovery that water is not an element but a compound of the gases we now call hydrogen and oxygen. He described his experiments to the Royal Society in 1785.
His method was new. He showed that if electric sparks are passed through a mixture of hydrogen and oxygen the two gases combine explosively and form water. This was a dangerous experiment. Cavendish did his experiment safely;
he wisely used a strong brass container for the gases. He also passed electric sparks through air and found that gases which readily dissolve in water form acids. We explain this reaction today as follows: oxygen and nitrogen combine and form oxides of nitrogen.
Cavendish also noticed that air contained a small proportion of a gas which did not combine with any other gas even if we pass electric sparks through it for a long time. Now we think that this gas was probably argon, one of the inert gases. It was rediscovered many years later.
The Royal Society
A Hobby
An English nobleman
Henry Cavendish and His Discovery

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Вопрос № 190540

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What does the term “buttressing” mean?
It’s a model of rectangular construction.
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It’s a standard of measurement.
It’s  a method used to strengthen the wall resistance.

Вопрос № 190541

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What does “planning for use” imply?
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It implies the analysis of reflexes.
It involves comfort for feelings.
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Вопрос № 190542

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What is the basis for the evolution of all openings?
These are steel and concrete skeletons.
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Вопрос № 190543

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What does the term “scale” mean?
It is a source of architectural inspiration.
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