Прочитайте текст и найдите соответствующий перевод подчеркнутого слова Omar Khayyam. When Malik Shah...: ответ на тест 223875 - Английский язык

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Omar Khayyam. When Malik Shah, the king of Persia, decided to make a new calendar for his people in the year 1079, he asked the famous mathematician and astronomer Omar Khayyam to help. Through careful mathematical calculations, Khayyam measured the length of the year as 365.24219858156 days. This was a very accurate measure. (We now know that a year is 365.242196 days.)

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Omar Khayyam. When Malik Shah, the king of Persia, decided to make a new calendar for his people in the year 1079, he asked the famous mathematician and astronomer Omar Khayyam to help. Through careful mathematical calculations, Khayyam measured the length of the year as 365.24219858156 days. This was a very accurate measure. (We now know that a year is 365.242196 days.)

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Philip Emeagwali. Philip Emeagwali, a Nigerian, left school at fourteen because his family couldn’t afford to pay. He continued studying on his own. At seventeen, he passed an exam and was invited to study in the USA. In 1990, while studying, he used mathematics to predict the location of oil under the ground. He helped people in Nigeria find oil. And everyone knows that oil = money!

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The triangle of fire.
A fire needs three things to burn: ignition (a spark or flame to start the fire), air and fuel (something to burn, for example: wood.) If any one of these three things is removed, a fire cannot burn.
Never try to stop a fire unless you have called the emergency services first! Do not risk your own safety to fight a fire!

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From Physics, we know that for every action there is an opposite reaction. Modern rockets have liquid fuel and something to help it burn (an oxidizer). This makes a powerful exhaust through the back of the rocket and pushes the rocket up.

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1_______. The bridge, which was over 3 kilometres long, opened in 1878 and fell down in a winter storm in 1879. 2_______.
There was the enquiry into the Tay Bridge disaster to find out why the accident happened. One of the constructions was that the design and construction were based on quickly and cheaply it could be built. Safety and strength were not thought about properly. 3___________ . Also, the design was based on experience rather than the more scientific and accurate calculations used today.
During the twentieth century engineers used computers to do a detailed structural analysis of the design used for the Tay Bridge. 4___________.