Bicycle-powered helicopter 人力直升机
2013-07-24 00:00:00 BBC英伦网
摘要：本文为大家介绍人力直升机，一起来看一下。
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文字稿:
This contraption may not look very impressive…
But when the bicycle-powered helicopter defied gravity, it caused great excitement.
Its flight only lasted 64 seconds and reached an altitude of 3.3 metres. Though it was a great achievement for the Canadian team, which spent 18 months designing the chopper.
They won a prize worth $250,000 from the American Helicopter Society.
The team hope to inspire the next generation of aviation pioneers.
Vocabulary 词汇:
contraption 奇怪的装置
defied gravity 飞起来
altitude 高度
chopper 直升机（非正式用语）
pioneers 先锋，创始人
责任编辑：lvmingwei