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我国自行研制的“神舟”五号载人飞船于2003年10月15日9时在酒泉载人航天城发射升空,进入距地球表面近地点高度约200千米远地点约343千米的椭圆轨道,实施变轨(距地表约343千米的圆形轨道)后,绕地球14圈,历时21小时,航程约60万千米,于19月16日6时载人飞船的返回舱安然着陆。你知道吗?能让飞船进入太空依据的就是物理学的基本原理,特别是在中考中,力学、热学、光学、电学
The self-developed “Shenzhou” manned spacecraft No.5 was launched at 9:00 am on October 15, 2003 in Jiuquan Manned Space City, and entered an ellipse about 200 km from the surface of the Earth and a distance of about 343 km. The track, after the implementation of the change of orbit (about 343 kilometers from the surface of the circular orbit), orbited the Earth for 14 hours and lasted 21 hours, with a range of about 600,000 kilometers. It landed safely at the manned spacecraft’s return capsule at 6:00 on the 16th of July. Did you know that the spacecraft’s ability to get into space is based on the basic principles of physics, especially in the midterms, mechanics, thermals, optics, and electricity.