Установите соответствие между текстами А-Е и рубриками 1-6. Используйте каждую рубрику только один раз. В задании одна рубрика лишняя. 1. A very cold place 2. Unsuccessful experiments 3. Good for short trips 4. An ancient piece of equipment 5. Different names 6. Inventors from different countries A. A refrigerator is a machine for keeping things cold. It is sometimes called a fridge or an icebox. It normally maintains the temperature 4-5 degree Celsius for household use. People put food and drinks in it, to keep those items cold or good for a long time. A refrigerator has a heat pump. It takes heat away from the air inside the fridge. The heat gets added to the air outside. The heat pump is usually driven by an electric motor. B. There are also ice boxes available that do not use electricity because they are filled with ice to provide the colder temperature. The ice can keep things cold until it melts. These ice boxes can be taken on camping trips. People also take them to the beach to have cool drinks. C. A freezer is a special type of refrigerator that stores food at freezing temperatures, Inside a freezer, it is normally -18 °C, Some freezer-only units can achieve -34 °C and lower, Freezers can be found in houschold refrigerators, as well as in industry and commerce, When stored in a freezer, frozen food can be stored safely for a longer time than storing at room temperatures. D. One great example of smart engincering brings us to the Middle East. There, around the 4th century B.C., the Persians came up with what is known as yakhchäl, As the climate was very hot the Persians needed some way to cool off and store food during the summer months, and that's when yakhchals were found of great help. The word stands for thice pit E. The history of artificial refrigeration began when Scottish professor William Cullen, who is famous for his seientifie experiments in the carly 18", designed a small refrigerating machine in 1755. In 1805, American inventor Oliver Evans designed a refrigerator machne that ran on gas, aithough he never built one In 1820, the British scientist Michnel Farnday turned some gases into liquids by using Ingh pressures und low temperatures.
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21 апреля 2025 06:33
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