During the 22 years from planning to completion, countless scientific and technological workers in China have overcome unimaginable difficulties. Nan Ren Dong and his colleagues didn't flinch, forgot to eat and sleep, and studied day and night. From 1994 to 20 16, he worked hard for 22 years to make the scientist break down from constant overwork. On 20 16? 500-meter spherical radio telescope (FAST)? Nan Rendong had already suffered from lung cancer before it was built and put into use. Although his health could not withstand a long period of tossing, he still kept working despite his illness and flew from Beijing to Guizhou to witness his 22-year dedication to scientific projects. Distance? 500-meter spherical radio telescope (FAST)? September 20 17 15, the first anniversary of its opening, he closed his eyes forever. He spent his whole life opening it? 500-meter spherical radio telescope (FAST)? In the history of world astronomy, hit another peak!
September 17, 20 17, 500-meter spherical radio telescope (FAST)? The picture is fixed between square inches, and the main structure of the telescope is the embodiment element. Three independent technological innovations, namely, building a giant telescope by using natural landforms, supporting technology of optical cable dragging feed and active reflector technology, are described. The stamp background shows the powerful function of telescope as a multidisciplinary basic research platform by showing scientific symbols such as pulsars, neutral hydrogen and space celestial bodies. Under the observation of ultraviolet light, the scientific principle of radio telescope receiving signals in the sky and then using the mirror reflection feed of radio telescope is simulated. Actually? 500-meter spherical radio telescope (FAST)? Advanced measurement technology goes far beyond the telescope itself and has important application prospects in other fields.