Прочитайте текст. Yellow and brown diamonds are good only for industrial purposes and cost much chea...: ответ на тест 857108 - Английский язык

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The first scientist to study colour was Sir Isaac Newton. 1_______. Newton was the first person to divide white light into different colours.
In 1861 another English scientist, James Clerk Maxwell, showed that he could make other colours by mixing the primary colours – red, blue and yellow – in different ways. 2_______. We make secondary colours by mixing two primary colours together. For example, red and yellow become orange, yellow and blue become green, and blue and red become violet. We make tertiary colour by mixing one primary colour with one secondary colour.
We can make a room look bigger or smaller, hotter or colder by using colour. 3_______. They can also make a room look bigger. Red, orange and yellow are hot colours. 4_______.

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The first scientists to study colour was Sir Isaac Newton. He was an English 1_______ who lived from 1642 to 1727. Newton was the first person to 2_______ white light into different colours.
In 1861 another English scientist, James Clerk Maxwell, showed that he could make other colours by mixing the primary colours – red, blue and yellow – in different ways. These other colours are called secondary and tertiary colours. We make secondary colours by 3_______ two primary colours together. For example, red and yellow become orange, yellow and blue become green, and blue and red become violet. We make tertiary colour with one 4_______ colour.
We can make a room look bigger or smaller, hotter or colder by using colour. Green and blue are cold colours. They can also make a room look bigger. Red, orange and yellow are hot colours. They can make a room look smaller.

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Cars and airplanes can be very fast. Ships in the ocean are slower. Why is that? Mostly, it is because of the resistance of the water. Water is much more difficult to go through than air.
One idea was to design the hull (sides of a ship) to rise higher out of the water as the ship went faster. This was tried, but the ship could not go fast enough to make a smooth ride. It was finally decided that the whole ship must rise out of the water.

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About 350 years ago, Galileo Galilei (1564-1642) changed scientists’ attitudes towards Science. He developed the scientific method used to obtain theories that explain how nature works. This method, which is still in use today, includes the following steps:
– Identification of the problem.
– Formulation of a hypothesis based on collected and analysed data.
– Testing of the hypothesis to check its validity.
– Development of a theory.

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There are two main types of theories: the theories of principles and the constructive theories. The theories of principles use analysis: we observe an event and explain it through the use of mathematics and experiments. Constructive theories, on the other hand, use synthesis. In these theories we use the information from the theories of principles to construct more complex theories. For example, the theory of principles proved that matter vibrates. Later, constructive theory used this information to prove that, sound, heat and radiation derive from vibration.

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Certain other substances absorb moisture from the air when they are exposed to it; these are said to be deliquescent. The impurities often present in common table salt are typical of this class of substances. Because these impurities tend to solidify upon absorbing moisture from the air the openings of a salt shaker clog in damp weather.
A substance that absorbs moisture from the air and becomes wet or dissolves in the moisture is called deliquescent.