看到这个题目,你可能会大吃一惊巴,爬梯子,可以爬到天上去?太不可思议了。可是我告诉你,早在1895年,俄国科学家、航天学之父齐奥尔科夫斯基就已经提出了。2003年9月15日,俄罗斯和美国70多位科学家和工程师对太空电梯进行了讨论,最终一致认为它将在21世纪内变成现实。太空电梯的原理并不复杂,基本上就是一条长长的缆绳一 To see this topic, you may be surprised, climbing the ladder, you can climb to heaven? Too incredible. But I tell you, as early as in 1895, Russian scientist Ziterkovsky, the father of space science, had already proposed. On Sept. 15, 2003, more than 70 scientists and engineers from Russia and the United States discussed the lift and eventually agreed that it would become a reality in the 21st century. The principle of a space elevator is not complicated, basically a long one