鸟儿远征为什么要编队

• 作 者: 颜仕英
• 机 构: 江苏
• 出 处: 第二课堂.小学内容
• 发表日期: 2004年期
• 关键词: 编队飞行 “一”字 春归 上升流 翼尖 翼形 中所

秋去春归的大雁在飞行时总是结队为伴,队形一会儿呈“一”字,一会儿呈“人”字,一会儿又呈“V”字。鸟为什么要编队飞行呢? 原来鸟编队飞行能产生一种空气动力学的作用。一群由二十五只编成“V”字队形飞行的鸟,要比具有同样能量而单独飞行的鸟多飞百分之七十的路程。也就是说,编队飞行的鸟能飞得更远。

Autumn go spring return of the geese in flight always tied up, forming a while was “a” word, while was “human” word, and then was “V” word. Why did the birds fly in formation? The original flight of the birds was able to produce an aerodynamic effect. A group of birds flying in 25 “V” formations flew 70% more than those flying alone with the same energy. In other words, the birds flying in formation can fly farther.