论文部分内容阅读
太空对于人类来说,总是显得十分玄妙和神秘。人类总是梦想能够漫游静谧太空,古人就有“可上九天揽月”的宏愿,如今科学技术的迅猛发展这种理想变成了现实。本世纪初,莱特兄弟发明了飞机;1957年,第一颗人造地球卫星上天;1961年4月12日,前苏联宇航员加加林乘坐的。东方一号”载人飞船摆脱地球引力,进入太空,实现了地球人的夙愿,加加林也成为进入太空第一人。到目前为止,已有20多个国家的近400位地球
For mankind, space always looks mysterious and mysterious. Mankind has always dreamed of roaming quiet space. The ancients had the ambition of “taking nine months to regain the moon,” and now the ideal of rapid scientific and technological development has become a reality. The beginning of this century, the Wright brothers invented the plane; in 1957, the first man-made earth satellite God; April 12, 1961, the former Soviet astronaut Gagarin ride. East 1 manned spacecraft to get rid of the gravity of the Earth, into space, to achieve the aspirations of the Earth people, Gagarin has become the first person to enter space.So far, there are more than 20 countries, nearly 400 Earth