The first flights of the new airlines that will take tourists past the threshold of space are poised to take off in 2012,and getting a seat on one is not all that different from booking a trip someplace on Earth.1 You...The first flights of the new airlines that will take tourists past the threshold of space are poised to take off in 2012,and getting a seat on one is not all that different from booking a trip someplace on Earth.1 You can sign up on the Web site of,say,展开更多
随着超强纤维的发展,在6万英里高空上建造一个能把货物运往太空的升降机将成为现实—— 2003年9月,美国洛斯阿拉莫斯国家实验室主办了一次建造太空升降机设想的专题研讨会,有趣的是,会议的主题演讲是由素有科幻小说大家之称的亚瑟·...随着超强纤维的发展,在6万英里高空上建造一个能把货物运往太空的升降机将成为现实—— 2003年9月,美国洛斯阿拉莫斯国家实验室主办了一次建造太空升降机设想的专题研讨会,有趣的是,会议的主题演讲是由素有科幻小说大家之称的亚瑟·克拉克(Arthur C. Clarke)从他斯里兰卡家中通过卫星发表的,他说:“我很高兴。展开更多
文摘The first flights of the new airlines that will take tourists past the threshold of space are poised to take off in 2012,and getting a seat on one is not all that different from booking a trip someplace on Earth.1 You can sign up on the Web site of,say,
文摘随着超强纤维的发展,在6万英里高空上建造一个能把货物运往太空的升降机将成为现实—— 2003年9月,美国洛斯阿拉莫斯国家实验室主办了一次建造太空升降机设想的专题研讨会,有趣的是,会议的主题演讲是由素有科幻小说大家之称的亚瑟·克拉克(Arthur C. Clarke)从他斯里兰卡家中通过卫星发表的,他说:“我很高兴。