Вопрос № 223829 - Английский язык

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There is no standard computer keyboard, although many manufacturers imitate the keyboards of PCs. There are actually three different PC keyboards: the original PC keyboard, with 84 keys; the AT keyboard, also with 84 keys; and the enhanced keyboard, with 101 keys. The three differ somewhat in the placement of function keys, the Control key, the Return key, and the Shift keys.
In addition to these keys, IBM keyboards contain the following keys: Page Up, Page Down, Home, End, Insert, Pause, Num Lock, Scroll Lock, Break, Caps Lock, Print Screen.
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How many keys has enhanced keyboard?

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What is the major purpose of cladding?
Cladding is a material used as the exterior wall enclosure of a building. The cladding of a building is its most visible part. Its major purpose is to separate the indoor environment of a building from the outdoors.
Cladding must prevent the entry of water, snow and ice into a building. Water on the face of a building is known to be driven by wind not only in a downward direction, but in every other direction, even upward.
Water problems, that is keeping water out, are especially great on very tall buildings. These buildings rise to height where wind velocities are extremely high.
They are much higher than a ground level. It should be taken into account that on tall buildings water tends to penetrate the smallest crack or hole and enter the building.

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Mrs. Sara Winchester of San Jose, California, was a very strange woman who built one of the world’s most unusual houses. When she died in 1922, aged 85, she was living alone in a house that had more than 150 rooms and covered an area of land greater than 2,5 hectares.
Mrs. Winchester’s problem was that she believed that if she stopped adding rooms to her house, she would die. Therefore, she employed workmen to keep on building and was happy only when she heard the sound of building. The house, when she bought it in 1884, was quite small, but 38 years later it was huge.
When she bought it, the house had two floors. By the time she died, it had eight. It had three lifts, 48 fireplaces and nine kitchens – none of which was ever used. In total, there were 2,000 doors and 10,000 windows. There were also miles of secret passages and tunnels that no one, not even Mrs. Winchester, knew how to get in to or out of.
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What was Mrs. Winchester’s problem?

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Vernal is a small town in Utah, USA. In 1916 the owners of the bank in Vernal wanted a new building. They wanted the new bank to be made of bricks. However, the bricks came from a town that was very far away, and the brick makers wanted a lot of money to bring the bricks to Vernal.
The owners of the bank did not have enough money, so they found another way of getting the bricks to the town. They asked the brick makers to put them in the post. However, they could only post ten bricks at a time. There were too many packages for the postman in Vernal to take to the bank, and soon the post building was full of bricks. To help the postman, people in the town agreed to collect the bricks and take them to the new bank.
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What way of getting the bricks to the town did the owners of the bank find?

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Alfred Nobel was a Swedish chemist who lived from 1833 to 1896. Alfred and his brother made explosives, but in 1864 there was an accident in the laboratory and Alfred’s brother was killed. Alfred then decided to spend his life truing to make explosives safer to use.
One of the strongest explosives at that time was nitroglycerine. This explosive, which looks like oily water, is very dangerous to use or even to carry. Nobel wanted to study nitroglycerine so he could find a way to make it safer. Nobel had an idea of taking nitroglycerine out on a boat in the middle of a lake and working with it there.
When Nobel wanted to take the nitroglycerine he was working with from one place to another, he put it into small boxes. Then he put the small boxes into a larger box made of clay. One day, when he opened the large clay box, he found that nitroglycerine was coming out of one of the small boxes. To his surprise, the large clay box was still dry. This gave him the idea of mixing clay with nitroglycerine. The clay would take the oil out of nitroglycerine and make it safer. He called this explosive ‘dynamite’.
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Why did Alfred decide to spend his life trying to make explosives safer to use?

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One day, Nicola Tesla had a vision of a whole new type of electric power system. Tesla went to work as an engineer for the Continental Edison Company. While he was there, he built the first model of his motor. But the people at the company weren’t interested in it. Tesla decided to go to the United States to talk to the great inventor Thomas Edison.
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Why did Tesla decide to go to the United States?