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As a major scientific device of the country, FAST is one of the major scientific and technological infrastructure equipment in China's "Eleventh Five-Year Plan", which was completed on September 25, 2016 and entered the stage of trial operation and commissioning. The National Astronomical Observatories of the Chinese Academy of Sciences led a number of domestic units, and with the close cooperation of the FAST science and engineering team, after a year of intensive debugging, it has now realized the smooth operation of various observation modes such as pointing, tracking, and drift scanning. Commissioning progress exceeds expectations and international practice for large-scale similar equipment; And systematic scientific output has already begun.
The FAST team used the FAST Early Science Center at Guizhou Normal University for data processing and detected dozens of high-quality pulsar candidates, and through international cooperation, such as the use of the 64-meter Parkes Telescope in Australia, the follow-up observation certification has so far passed the system certification of 6 pulsars. This is the first time that a new pulsar has been discovered by a radio telescope in China.
The search and discovery of radio pulsars is the core scientific goal of FAST. There are a large number of pulsars in the Milky Way, but only a small number of them are currently observed due to their weak signals and are easily overwhelmed by artificial electromagnetic interference. The discovery of pulsars in the early stage of debugging was initially demonstrated by the fruitful early scientific planning and talent and technical reserves, and opened the agitated era of original discoveries produced by China's radio band large scientific device system.
In the next two years, FAST will continue to be debugged in order to meet the design indicators, pass the national acceptance, and be open to scholars at home and abroad. At the same time, we will further verify and optimize the scientific observation mode, continue to promote astronomical discoveries, and strive to build FAST into a world-class telescope equipment as soon as possible.
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China's Sky Eye "is indispensable" This high-sensitivity giant radio station about 30 football fields in size has always been curious to the outside world since it was built.
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What can our country's heavenly eye see? It turns out that the Sky Eye is not only used to explore the universe, but also to collect other signals in the universe, fearing that it will bring immeasurable disasters to the earth.
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What can China's Sky Eye see? provoked the opposition of the whole world, and the final result made people angry!
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China Tianyan is in Dawotai, Jinke Village, Kedu Town, Pingtang County, Guizhou Province.
The 500-meter aperture spherical radio telescope, referred to as FAST, is located in the karst depression of Dawotai, Kedu Town, Pingtang County, Qiannan Buyi and Miao Autonomous Prefecture, Guizhou Province.
The construction of the 500-metre aperture spherical radio telescope began on March 25, 2011. The inauguration ceremony was held on September 25, 2016, and the scientific and technological infrastructure entered trial operation and commissioning, and passed the national acceptance work in China on January 11, 2020, and was officially opened for operation.
Construction site:
The 500-meter aperture spherical radio telescope is located in the Dawotai depression of Jinke Village, Kedu Town, Pingtang County, Qiannan Buyi and Miao Autonomous Prefecture, Guizhou Province, China, about 85 kilometers away from Pingtang County in the northeast and 45 kilometers away from Luodian County in the southwest.
There are three reasons why the site is located in "Dawotai", one is that the landform is closest to the shape of FAST, and the amount of engineering excavation is the smallest; Second, the karst geology here can ensure that rainwater penetrates into the ground and will not accumulate on the surface and damage and corrode the telescope; Third, the radio telescope needs a "quiet land", and there is not a single township within a 5-kilometer radius of the "Dawotai", and the radio environment is ideal.
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China Tianyan is located in Dawotai, Jinke Village, Kedu Town, Pingtang County, Guizhou ProvinceIt has 4,450 reflective panels and a receiving area of 250,000 square meters.
In layman's terms, it covers an area of about 30 football fields, and if this "cauldron" is filled with water, each person in the world can share 4 bottles of mineral water, making it the world's largest aperture and most sensitive radio telescope. China not only has its own eye, but also the world's largest eye.
The reason for choosing the location in Guizhou
Hidden in the depths of the mountains of Guizhou, Dawotai in Pingtang County is a natural depression with a special "concave" geographical structure, just like a natural "stove" holding the "pot" of Tianyan. Moreover, the underground karst cave here is extremely developed, which is convenient for rainwater infiltration and flow, and is not easy to form stagnant water, avoiding corrosion and damage to the telescope, which is simply tailor-made for the eye of the sky.
At the same time, due to the fact that SkyEye receives a large number of radio signals, it needs a very "quiet" environment, and wireless devices such as television, mobile phones, and radio in human activities will interfere with the magnetic field of SkyEye, affecting the sensitivity of SkyEye, and the project must be far away from cities, villages and signal base stations. The remote areas of Guizhou, with low population density and low degree of tourism development, have less radio interference than Yunnan, which has a developed tourism industry.
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Because we humans have always believed in this world, this universe is not only us human beings, but also a kind of advanced life, so the pace of exploration of extraterrestrial has never stopped. So has China's Sky Eye really explored it? This needs to be judged and discussed from the function of our heavenly eye.
First, FAST has the ability to extend neutral hydrogen observations to the edge of the universe and reproduce images of the early universe.
In October 2014, Proxima Centauri will orbit a background star in a straight line with Earth, and astronomers are trying to use Einstein's relativistic effect to uncover whether there is an ideal planetary orbit in the "three-body" world. When Proxima Centauri orbits in front of the background star and aligns itself in a straight line with Earth, Proxima Centauri's gravitational field distorts the light of the background star, and scientists are trying to determine the exact mass of the star through detailed observations and precise calculations.
The construction site of the eye in China is in Guizhou, from a distance it looks like a cauldron, it is really big, it is said that astronauts in space can see China's eye with the naked eye, can be imagined. One of the main tasks of the Sky Eye is to detect extraterrestrial signals in the universe.
Pulsar signals were first thought to be signals from aliens to us, but scientists later confirmed that they weren't. This signal is actually a long, long time ago, about 10 billion light-years ago, the electromagnetic waves left over after the violent ** in the universe. This electromagnetic wave came to the earth after a long journey of hundreds of millions of light years, and after a second's encounter with the earth, it sailed to the vast universe.
From the perspective of searching for extraterrestrial civilizations alone, providence is definitely the most powerful device, and if there are really technologically advanced aliens who send us intelligent electromagnetic waves, then China must be the first to discover it. But why are many scientists, including Stephen Hawking, opposing China's construction of the Sky Eye?
The emergence of our eye in the sky has also promoted the development of global astronomy, as for why some Western countries have to oppose it, in fact, the reasons in the middle are also understandable, they are worried that the existence of the eye in the sky will expose the location of the earth, which will attract the attention of some advanced civilization life in the universe, once the aliens find human beings through the location of the eye of the sky, then the consequences will be unimaginable, after all, human beings are not ready to face advanced civilization.
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China's Sky Eye is the world's largest diameter radio telescope and can see far away, such as the universe.
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To put it simply, it is a kind of neutron star, which can send periodic pulse signals, and it is reported that since it was put into use in 16 years, it has successively discovered nearly 51 pulsars, and 11 of them have been internationally confirmed!
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China's Sky Eye system can detect many places that cannot be detected in daily life.
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China's Sky Eye is very advanced and can see things that were previously unexplored.
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The Heavenly Eye can see places very far away, like some places in the universe.
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Sky Eye is satellite navigation monitoring, as long as it covers the place can be monitored.
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China's Sky Eye can see any corner of the globe.
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It can detect planets in the universe, which is equivalent to a camera in real life.
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Anything, our eye can "watch" almost the entire universe.
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What can China see, and why is the whole world opposed China's construction of Tianyan?
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What did China Tianyan find?
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How far can my country's Sky Eye see? After listening to the words of foreign experts, it is no wonder that Hawking wanted to close the eye of the sky when he was dying.
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How far can China Sky Eye see? With the words of foreign experts, it is no wonder that Hawking wants to close the eye of the sky.
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How far can China Sky Eye see? After listening to the words of foreign experts, it is no wonder that Hawking wants to close the eye of the sky.
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Compared with the German Bonn 100-meter telescope, the sensitivity of China's "Sky Eye" is about 10 times higher; Compared with the American Arecibo 350-meter telescope, the comprehensive performance of China's "Sky Eye" has also been improved by about 10 times. The Sky Eye can receive electromagnetic signals 13.7 billion light-years away, and its observation range can reach the edge of the universe. Please recommend if it helps.
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It is possible to visit,However, visiting China Sky Eye needs to comply with the following regulations:
Instructions for visiting "China Sky Eye".
1. Visit the "China Sky Eye" at the observation deck of the "China Sky Eye" scenic spot for free visits. Due to the needs of the special operating environment of "China Sky Eye", tourists must pass the security check and take a professionally tested and specially modified low-frequency diesel ferry, with a round-trip distance of 50 kilometers and a fare of 50 yuan. Scenic Shuttle Bus Ticket Sales Time:
08:30-16:00 (16:00 every day.)
15. Suspension of shuttle buses). Ferry tickets can be purchased on-site or booked on "China Tianyan", Donkey Mother, Ctrip, etc.**.
2. According to the provisions of the "Measures for the Protection of the Electromagnetic Wave Quiet Zone of the 500-meter Aperture Spherical Radio Telescope in Guizhou Province", tourists who enter the observation deck of the scenic spot to visit the "China Sky Eye" are not allowed to bring electronic devices, including but not limited to mobile phones, digital cameras, tablets, laptops, chargers, power banks, watches, smart bracelets, car keys, induction door keys, walkie-talkies, remote controls and other electronic products; Cigarettes, lighters, matches and other flammable and explosive materials; Controlled knives and other contraband. The tourist service center of the scenic spot provides you with free storage services, please consciously store the above products before taking the ferry.
3. Visitors can bring their own mechanical camera to shoot (the camera model is Nikon FM2 FM3, please cooperate with the scenic spot for testing before entering the park). The "China Sky Eye" scenic spot provides professionally tested mechanical camera shooting services at the observation deck, and you can choose the service at your own expense.
4. The observation deck of the scenic spot has a high altitude and steep steps, and it is not recommended for tourists with limited mobility or heart disease, high blood pressure and other diseases; Minors must be accompanied by an adult family member when visiting the "China Sky Eye".
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China's "Sky Eye" is in Kedu Town, Pingtang County, Qiannan Buyi and Miao Autonomous Prefecture, Guizhou Province.
The founder of the China Sky Eye Project is Nan Rendong, and the 500-meter spherical radio telescope, known as the "China Sky Eye", was proposed by the Chinese astronomer Nan Rendong in 1994. It took 22 years to build and was put into use on September 25, 2016. Led by the National Astronomical Observatories of the Chinese Academy of Sciences, it has the world's largest single-aperture, most sensitive radio telescope, with independent intellectual property rights in China.
Its overall performance is ten times that of the Arecibo radio telescope.
At present, more than 240 pulsars have been discovered in China's Sky Eye.
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