We spent full weekand in country, and it was very good! We were lucky with weather, and everybody had ability to do something, they wanted : father was cathing fish in a lake, mother and my yonger sister sunbathed and played badminton, and I tried to train our puppy... What about people in your country? How do people in your country spend weekeds? Which season is the best for activities in your region? Do you usually spend weekends with your family or friends, and why?
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ответить на вопросы на what factors account for the growing popularity of ballooning as a sport? why are most balloons used today of the hot-air variety? why have balloons captured the imagination for over two hundred years? why do people want to go up in a ballon?
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The basic idea behind hot air balloons has been around for a long time. Archemedes, one of the greatest mathematicians in Ancient Greece, figured out the principle of buoyancy more than 2,000 years ago, and may have conceived of flying machines lifted by the force. In the 13th century, the English scientist Roger Bacon and the German philosopher Albertus Magnus both proposed hypothetical flying machines based on the principle.