Ветряная мельница (ветряк) — аэродинамический механизм, который выполняет механическую работу за счёт энергии ветра, улавливаемой крыльями мельницы. Наиболее известным применением ветряных мельниц является их использование для муки.
На протяжении долгого времени ветряные мельницы, наряду с водяными мельницами, были единственными машинами, которые использовало человечество. Поэтому применение этих механизмов было различным: в качестве мукомольной мельницы, для обработки материалов (лесопилка) и в качестве насосной или водоподъемной станции.
«Классическая» ветряная мельница с горизонтальным ротором и удлиненными четырёхугольными крыльями является широко распространенным элементом пейзажа в Европе, в ветреных равнинных северных регионах, а также на побережье Средиземного моря. Для Азии характерны другие конструкции с вертикальным размещением ротора.
С развитием в XIX веке паровых машин мельницы постепенно вышли из употребления.
1. There were two men in the room. One of them was writing something while the other read a newspaper. 2. He didn't to tell me that he received a message from her. 3. I had asked him if he knew where she lived. I said I did not know her address. 4. He asked me if I could give him your address. 5. She said that hegave her the wrong address. 6. I asked him where he put my letter. 7. He told us that they had spent all the money. 8. Iwas sitting in an armchair and thought of my coming trip across the North Sea when the door suddenly opened and an old friend of mine whom I have not to seen for a very long time entered the room. 9. She came to see us just at the time when we have had dinner. It was the first time I have seen her. 10. I have seen him just as he left the hotel. 11. I have not seen him before we met at the concert. 12. He had left the house before I had time to ask him anything. 13. After spending several days in Paris he felt lonely and wanted to return home. 14. I thought he had already gone home. 15. I found the old man in the garden. He was talking to some children who stood around listening to him. 16. He spoke a language we had never head before. 17. He told me he had learnt it from the newspaper. 18. He entered the room, took something from the desk and went out.
Ветряная мельница (ветряк) — аэродинамический механизм, который выполняет механическую работу за счёт энергии ветра, улавливаемой крыльями мельницы. Наиболее известным применением ветряных мельниц является их использование для муки.
На протяжении долгого времени ветряные мельницы, наряду с водяными мельницами, были единственными машинами, которые использовало человечество. Поэтому применение этих механизмов было различным: в качестве мукомольной мельницы, для обработки материалов (лесопилка) и в качестве насосной или водоподъемной станции.
«Классическая» ветряная мельница с горизонтальным ротором и удлиненными четырёхугольными крыльями является широко распространенным элементом пейзажа в Европе, в ветреных равнинных северных регионах, а также на побережье Средиземного моря. Для Азии характерны другие конструкции с вертикальным размещением ротора.
С развитием в XIX веке паровых машин мельницы постепенно вышли из употребления.
1. There were two men in the room. One of them was writing something while the other read a newspaper. 2. He didn't to tell me that he received a message from her. 3. I had asked him if he knew where she lived. I said I did not know her address. 4. He asked me if I could give him your address. 5. She said that hegave her the wrong address. 6. I asked him where he put my letter. 7. He told us that they had spent all the money. 8. Iwas sitting in an armchair and thought of my coming trip across the North Sea when the door suddenly opened and an old friend of mine whom I have not to seen for a very long time entered the room. 9. She came to see us just at the time when we have had dinner. It was the first time I have seen her. 10. I have seen him just as he left the hotel. 11. I have not seen him before we met at the concert. 12. He had left the house before I had time to ask him anything. 13. After spending several days in Paris he felt lonely and wanted to return home. 14. I thought he had already gone home. 15. I found the old man in the garden. He was talking to some children who stood around listening to him. 16. He spoke a language we had never head before. 17. He told me he had learnt it from the newspaper. 18. He entered the room, took something from the desk and went out.