Chinese eye telescope is expected to be completed in September Guizhou nearly 10000 relocation –

Chinese "eye" telescope is expected to be completed in September in Guizhou nearly million people moved – Sohu news November 26, 2015, Pingtang County of Guizhou province in the construction of the world’s largest single aperture radio telescope of 500 m diameter spherical radio telescope (fast) is the core component of the "cabin" on the 21 day the first upgrade test. The visual Chinese map assumes that there are aliens in the universe, and humans have a telescope big enough, so can they see them through this telescope? Little friends know that, in a depression in Guizhou today, scientists and engineers are building such a telescope, is expected to be completed in September this year, it bears a major mission is to find partners in the vastness of the universe for human beings. This is known as the "eye" of the China telescope’s official name is "500 meter aperture spherical radio telescope (Five-hundred-meter Aperture Spherical Radio Telescope), referred to as English is just FAST, it will be the world’s largest single aperture radio telescope, the receiving area equivalent to nearly 30 of the size of a football field. How does FAST observe outer space? Why is it built in the Guizhou Valley Wali? Can it find aliens? Xinhua International client talk to you. How far can FAST see? Radio is an electromagnetic band which is lower than the infrared frequency. The radio telescope is similar to the antenna pot that receives the satellite signals, and focuses on the signals from several square meters to thousands of square meters by means of the reflection focus of the pot. The National Academy of Sciences Observatory China FAST project chief scientist, chief engineer Nan Rendong said: "all kinds of space radiation, the distant signal like thunder in the cicadas, not super sensitive ‘ears’, don’t distinguish." For more than half a century, all of the radio telescope’s energy has yet to be rolled out. In order to get farther and weaker radio, "reading" information from the depths of the universe requires a larger aperture radio telescope. In short, the bigger the pot, the farther the interplanetary trek. Experts pointed out that, compared with the German Bonn 100 meters telescope, FAST sensitivity increased by about 10 times. This means that FAST is also possible to capture radio signals far away from billions of light-years away. Guizhou Valley wa have what good? Open the satellite map, landform is like Guizhou Pingtang County wrinkled elephant skin. To improve the resolution, we can see the big and small "funnel" – "sinkhole" group. One of them is scientists looking for ten homes for the largest telescope". In 1993, astronomers from ten countries, including China, proposed the proposal to build a new generation of radio large telescopes aimed at tracing back to the original universe and answering many problems in astronomy. By the end of 1995, the China Promotion Committee of the radio "big telescope" proposed the concept of "Karst project" using the Karst depression in Guizhou to build a spherical reflector. After that, the scientists, with the help of local residents, postscript.

中国“天眼”望远镜预计9月竣工 贵州近万人搬迁-搜狐新闻  2015年11月26日,在贵州省平塘县建设的世界最大单口径射电望远镜500米口径球面射电望远镜(fast)的核心部件“馈源舱”21日进行首次升舱试验。 视觉中国 资料图   假设宇宙中真有外星人,而人类有一个足够大的望远镜,那么是不是可以通过这个望远镜看到他们?小伙伴们可知,眼下在贵州的一块洼地里,科学家和工程师们正在建造这么一台望远镜,预计于今年9月竣工,它背负的一大重要使命正是在广袤的宇宙中为人类寻找同伴。   这个被誉为中国“天眼”的望远镜的官方名称是“500米口径球面射电望远镜”(Five-hundred-meter Aperture Spherical Radio Telescope),英文简称刚好是FAST,它建成后将是世界最大单口径射电望远镜,接收面积相当于近30个足球场大小。   FAST如何观察外太空?它为何建在贵州山洼洼里?它能不能发现外星人?新华国际客户端跟你聊一聊。   FAST能看多远?   射电,是比红外线频率更低的电磁波段。射电望远镜,跟收卫星信号的天线锅类似,通过“锅”的反射聚焦,把几平方米到几千平方米的信号聚拢到一点上。   中国科学院国家天文台FAST工程首席科学家、总工程师南仁东说:“宇宙空间混杂各种辐射,遥远的信号像雷声中的蝉鸣,没有超级灵敏的‘耳朵’,根本就分辨不出来。”   半个多世纪以来,所有射电望远镜收集的能量尚翻不动一页纸。   要想获得更远、更微弱的射电,“阅读”到宇宙深处的信息,就需要更大口径的射电望远镜。简言之,就是“锅”越大,星际穿越的距离就越远。   专家们指出,与德国波恩100米口径望远镜相比,FAST灵敏度提高约10倍。这意味着,远在百亿光年外的射电信号,FAST也有可能“捕捉”到。   贵州的山洼洼有啥好?   打开卫星地图,贵州平塘县的地貌好似布满褶皱的大象皮肤。再提高分辨率,就能看到大大小小的“漏斗”――“天坑”群。其中有一个就是科学家寻觅十载为这个最大望远镜找的“家”。   1993年,包括中国在内的十国天文学家提出建造新一代射电“大望远镜”的倡议,旨在回溯原初宇宙,解答天文学中的众多难题。1995年底,射电“大望远镜”中国推进委员会,提出了利用贵州喀斯特洼地建造球反射面的“喀斯特工程”概念。   此后,科学家们在当地居民的帮助下,跋山涉水勘察选址。经过反复筛选,最终在平塘县克度镇找到了“大窝凼”――最适合硕大“天眼”的深深的“眼窝”。相关的主题文章: