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2 года назад
People have used the power of wind for thousands of years.
Windmills were simple turbines that could produce mechanical energy.
Nowadays farmers use windmills to make a small amount of electricity – enough to power a few farm machines.
To make enough electricity for lots of people, power companies build wind farms, with lots of wind turbines.
Wind farms are built in flat, open areas where the wind blows at high speed.
Bigger is better – the bigger the wind turbine, the more wind it reaches and the more electricity it produces.
This diagram shows some parts inside a wind turbine: The wind turns the blades, they turn the turbine. The generator makes electricity and sends this power along the lines.
And this video will show you a wind turbine in action.
Definitely! Some schools in Europe and in the USA have their own wind farms!
Hydro means water in Latin – so hydro power is the power of water.
Have you ever used a magnifying glass to make something melt or burn? You were using solar power!
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Henry Ford Henry was a man who transformed the world. He was a symbol of industrial technology.
Anything new or different in the world made by people is an invention!
There are some pictures that show the role and place of branding in globalization.
Ukraine The United Kingdom The USA Comparing education in different countries.
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Were a part of the Universe. S p a c e is a place far above the Earth where there is no air. is a place far above the Earth where there is no air.
Houses in England. Who owns houses in England? 2\3 of the people in England and the rest of Britain own or in the process of buying their own houses.
What profession is it? This profession is well-known. This profession is well-known. Some people call this profession extremely difficult. It requires.
Bolshaya Sosnova With Its Houses If you come to Bolshaya Sosnova,you can live in: detached houses,semi-detached houses, cottages and blocks of flats.
Family Relationships (Семейные Отношения). Family How could you describe the word family? First of all family means a close unit of parents and their.
Chernobyl. Life in the zone of radiation apocalypse.
School uniform Zyablitskaya Diana. uniform School uniform is an integral part of school life in many countries. School uniform is an integral part of.
Energy saving. Energy conservation Energy conservation is the reduction of energy consumption through the use of a smaller quantity of energy services.
The main problem between generations. There are many problems between parents and their children. It can be differences between the views of the younger.
Have all people originated from Africa?
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