2010年9月8日星期三

The first men to fly (2)

The first men to fly (2)

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A few months later the brothers sent up another balloon. The time there was a basket hanging under it. In the basket there were three animals: a sheep, a duck and a hen. The balloon traveled through the air to a place about one and a half miles away. Then it came down safely to earth.
Now it was time for men to fly! In October 1783 another of the brothers’ balloons went up. This time a man went with it. The balloon did not rise very high. It rose only to twenty-five meters, wholesale replica designer handbags. It was tied to the ground by a rope. A month later two men went up in the basket under a balloon full of hot air. this time there was no rope! A great many people watched. The balloon rose to a height of 900 meters. The wind blew it along for five and a half miles. Then it came gently back to earth. Men had traveled through the air for the first time!
other men filled balloons with a gas called hydrogen. Hydrogen is much lighter than air. Balloons filled with hydrogen were able to travel long distances, wholesale coach handbags. But the men in the baskets under the balloons could not control the direction of the balloons. They went where the wind took them.
Later, balloons were made long in shape. These were called airships. They had engines to drive them along, and the flying direction could be controlled a little. But they were still blown about by the wind. The hydrogen gas was dangerous, too. It caught five very easily. There were many accidents and many people died. At last they stopped making airships, wholesale designer handbags, but they continued trying various other was and improved them every time until modern planes came to the would.


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