заполните смысловые пропуски в тексте соответствующими словамиSOLAR TOWERS: The dawn of a new era in renewable energy?The need to develop пустоrenewable energy is widely seen as a futuristic technological challenge. In reality, some of the most effective ways of harnessing пустоhorsepower from nature are based on concepts that have existed for donkey’s years. The wind turbine is an obvious example. Another – less well known, but conceived almost a century ago – is the solar tower or solar пустоchimney . Moreover, if the Australian company EnviroMission completes an ambitious solar tower project in the New South Wales desert, the пустоtechnology could capture not just the sun’s rays but the public’s imagination worldwide. The firm, is planning to construct a tower a colossal one kilometre high. If built, it will be the world’s tallest structure by a пустоhuge margin.How it works A large glass enclosure is built, with a chimney at its centre. The sun heats the enclosure, causing пустоexpansion of the air inside. At the top of the chimney, the lower temperature and lower pressure due to the higher пустоaltitude create a пустоpressure differential known as stack effect. This causes air to flow up the chimney. Electricity is generated by turbines at the bottom of the chimney, which are driven by the пустоflow of air. The bigger the area of glass and the taller the chimney, the greater the airflow and the higher the пустоgenerating capacity.