在美国的佐治亚技术学院,教师和学生每年都能享受一次由美国宇航局提供的高空飞行,进行一些科学试验。当飞机在高空作抛物线飞行时,约有30钞的时间飞机处于微重力状态(近于零重力,此时物体卞得很轻)。学生们就是要在这难得的短暂时刻中做某些实验。高麦来兹教授是实验指导。他说,为了获得 At the Georgia Institute of Technology in the United States, teachers and students enjoy a high-altitude flight provided by NASA every year for scientific experiments. When the aircraft was parabolically flying at high altitude, the aircraft was in micro-gravity (nearly zero-gravity, at which time the object was very light) for approximately 30 minutes. The students are to do some experiments in this rare moment. Professor Gao Mailaizi is the experimental guide. He said that in order to obtain