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Прочитайте текст и выполните задания.Vacuum1. Evangelista Torricelli produced the first laboratory v...: ответ на тест 3723 - Английский язык

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Vacuum
1. Evangelista Torricelli produced the first laboratory vacuum in 1643, and other experimental techniques were developed as a result of his theories of atmospheric pressure. A torricellian vacuum is created by filling a tall glass container closed at one end with mercury and then inverting the container into a bowl to contain the mercury.
2. The quality of a vacuum refers to how closely it approaches a perfect vacuum. Residual gas pressure is a primary indicator of quality, and is most commonly measured in units called torr, even in metric contexts. Lower pressures indicate higher quality, although other variables must also be taken into account.
3. Vacuum became a valuable industrial tool in the 20th century with the introduction of incandescent light bulbs and vacuum tubes, and a wide array of vacuum technology has since become available. The recent development of human spaceflight has raised interest in the impact of vacuum on human health, and on life forms in general.
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A great variety of vacuum technologies have become possible …
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  • due to the recent development of human spaceflight
  • when incandescent light bulbs and vacuum tubes began to be applied in industry
  • due to invention of laboratory vacuum by Evangelista Torricelli in 1643
  • because people wanted to use the quality of a vacuum in industry
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Вопрос задал(а): Алексей, 22 Декабрь 2014 в 11:00
На вопрос ответил(а): Астафьева Любовь, 22 Декабрь 2014 в 11:00

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Вопрос № 3722

Прочитайте текст и выполните задания.
Vacuum
1. Evangelista Torricelli produced the first laboratory vacuum in 1643, and other experimental techniques were developed as a result of his theories of atmospheric pressure. A torricellian vacuum is created by filling a tall glass container closed at one end with mercury and then inverting the container into a bowl to contain the mercury.
2. The quality of a vacuum refers to how closely it approaches a perfect vacuum. Residual gas pressure is a primary indicator of quality, and is most commonly measured in units called torr, even in metric contexts. Lower pressures indicate higher quality, although other variables must also be taken into account.
3. Vacuum became a valuable industrial tool in the 20th century with the introduction of incandescent light bulbs and vacuum tubes, and a wide array of vacuum technology has since become available. The recent development of human spaceflight has raised interest in the impact of vacuum on human health, and on life forms in general.
Содержанию текста соответствует утверждение …
Vacuum is measured in units called torr named after Evangelista Torricelli who produced the first laboratory vacuum.
Evangelista Torricelli developed experimental techniques of producing vacuum using the influence of atmospheric pressure.
The quality of a vacuum is independent from the indicator of residual gas pressure.
Industry is not the only application sphere of vacuum technologies.

Вопрос № 3726

Прочитайте текст и выполните задания.
Vacuum
1. Evangelista Torricelli produced the first laboratory vacuum in 1643, and other experimental techniques were developed as a result of his theories of atmospheric pressure. A torricellian vacuum is created by filling a tall glass container closed at one end with mercury and then inverting the container into a bowl to contain the mercury.
2. The quality of a vacuum refers to how closely it approaches a perfect vacuum. Residual gas pressure is a primary indicator of quality, and is most commonly measured in units called torr, even in metric contexts. Lower pressures indicate higher quality, although other variables must also be taken into account. 
3. Vacuum became a valuable industrial tool in the 20th century with the introduction of incandescent light bulbs and vacuum tubes, and a wide array of vacuum technology has since become available. The recent development of human spaceflight has raised interest in the impact of vacuum on human health, and on life forms in general.
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What are the contemporary spheres of vacuum application?
 The introduction of incandescent light bulbs and vacuum tubes influenced further research of vacuum.
Nowadays people consider vacuum as a perspective space medium.
People investigate vacuum capacities to use it more effectively in industry.
Vacuum is widely adopted nowadays in the domain of human spaceflight.

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The building where the US Congress meets is called the …

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Прочитайте текст и выполните задания.
Vacuum
1. Evangelista Torricelli produced the first laboratory vacuum in 1643, and other experimental techniques were developed as a result of his theories of atmospheric pressure. A torricellian vacuum is created by filling a tall glass container closed at one end with mercury and then inverting the container into a bowl to contain the mercury.
2. The quality of a vacuum refers to how closely it approaches a perfect vacuum. Residual gas pressure is a primary indicator of quality, and is most commonly measured in units called torr, even in metric contexts. Lower pressures indicate higher quality, although other variables must also be taken into account. 
3. Vacuum became a valuable industrial tool in the 20th century with the introduction of incandescent light bulbs and vacuum tubes, and a wide array of vacuum technology has since become available. The recent development of human spaceflight has raised interest in the impact of vacuum on human health, and on life forms in general.
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What are the contemporary spheres of vacuum application?

Вопрос № 3729

Прочитайте текст и выполните задания. 
Vacuum 
1. Evangelista Torricelli produced the first laboratory vacuum in 1643, and other experimental techniques were developed as a result of his theories of atmospheric pressure. A torricellian vacuum is created by filling a tall glass container closed at one end with mercury and then inverting the container into a bowl to contain the mercury. 2. The quality of a vacuum refers to how closely it approaches a perfect vacuum. Residual gas pressure is a primary indicator of quality, and is most commonly measured in units called torr, even in metric contexts. Lower pressures indicate higher quality, although other variables must also be taken into account. 3. Vacuum became a valuable industrial tool in the 20th century with the introduction of incandescent light bulbs and vacuum tubes, and a wide array of vacuum technology has since become available. The recent development of human spaceflight has raised interest in the impact of vacuum on human health, and on life forms in general
содержанию текста соответствует утверждение

Вопрос № 3730

One of the most significant branches of contemporary physics is the study of the fundamental ________ constituents of matter, the elementary particles.
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