Did the history of the hot-air balloon begin with a sheep, a duck and a chicken?
One day in 1777, Joseph Montgolfier was relaxing in front of the fire with his laundry drying nearby, wasn't he?
Did he notice that one of his shirts or suits had started to float upwards?
Why did he throw some small pieces of paper into the fireplace?
Who loved science and wanted to become an inventor?
Did he start trying to think of a craft that would be able to capture smoke and heat and lift people off the ground?
What did he begin performing experiments on?
It was heat and not smoke that had the power to lift things, wasn't it?
When did they present their first hot-air balloon?
Was the first hot-air balloon made from paper and cloth?
The Montgolfier brothers were too nervous to go up in the balloon themselves, weren't they?
Whom did they put in the basket that hung below the balloon for the two-mile journey?
Who gathered to watch the balloon floating high in the sky?
Did the first flight consisting of human passengers take place in Paris or in London on 21st November 1783?
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Это самая племенная порода.
Сегодня холоднее , чем было вчера
Самое главное (из всего) - контролировать болезни
Контроль заболеваний требует более сложных методов.
Heifers
Horses
Studies
Barns
Halfs,halves
Days