1. Long March 1 rocket
The Long March 1 (CZ-1) is a three-stage launch vehicle developed for launching China's first artificial satellite, with a total length of 29.46 meters, a maximum diameter of 2.25 meters, a take-off mass of 81.5 tons and a carrying capacity of 3 kilograms in low earth orbit.
the development of the long March 1 rocket began in 1965. In November 1969, the Long March-1 rocket made its first test flight, but it failed to enter orbit due to the second-stage fault.
On April 24th, 197, Dongfanghong-1, China's first artificial earth satellite, was successfully sent into space. The rocket made three satellite launches, with a success rate of 66.67%. The third launch was in 1971.
2. Beidou satellite navigation test system
consists of various types of user computers. The central control system can share information with other systems through the ground network, and can provide system data needed for command and control for group users.
Beidou satellite navigation test system can realize regional continuous navigation and positioning, short digital message communication and time service. Beidou satellite navigation test system is also called Beidou-1.
is the first generation experimental system of Beidou satellite navigation system, which uses active positioning, and consists of three parts: the ground control center of three positioning satellites (two working satellites and one backup satellite) and the user terminal.
Beidou-1 satellite navigation and positioning system can provide users with all-weather real-time positioning service. The calibration accuracy is 2m, and the uncalibrated accuracy is 1m.
3. Tianhe No.2 Supercomputer
Tianhe No.2 is a supercomputer system developed by National University of Defense Technology, ranking first with its excellent performance of peak computing speed of 549 million times per second and continuous computing speed of 339 million times per second.
became the fastest supercomputer in the world in 213. In the list of the top 5 supercomputers in the world published on November 17th, 214, China's Tianhe II won the championship for the fourth time in a row, nearly twice as fast as the second American Titan.
In May, 215, the cosmological N-body numerical simulation of neutrinos and dark matter with a population of 3 trillion was successfully carried out on Tianhe-2, revealing the long evolution process of BIGBANG since 16 million years ago.
At the same time, this is the N-body numerical simulation with the largest number of particles in the world so far; On November 16, the list of the top 5 supercomputers in the world was published in the United States, and Tianhe II supercomputer was the sixth consecutive supercomputer with 3.386 trillion times per second.
On June 2th, 216, a new issue of the list of the top 5 supercomputers in the world was announced, and the "Shenwei Taihu Light" made of China's own chips replaced "Tianhe II" to top the list.
on November 12, 218, a new list of the top 5 global supercomputers was released in Dallas, USA, and China's supercomputer "Tianhe II" ranked fourth.
4. Mozi quantum communication satellite
In p>211, the Chinese Academy of Sciences officially launched the development of the world's first "experimental satellite for quantum science", which not only means that China scientists take the lead in challenging satellite-to-ground quantum communication, but also means that China will lead Europe and the United States in acquiring the global coverage of quantum communication.
The world's first quantum science experimental satellite launched by China was officially named "Mozi". Academician Pan Jianwei, chief scientist of quantum satellite, said that Mozi first proposed that light travels in a straight line.
The pinhole imaging experiment was designed, which laid the foundation for optical communication and quantum communication. Naming a quantum satellite after a great scientist in ancient China will enhance our cultural confidence. ?
at 1: 4 on August 16th, 216, China successfully launched the world's first quantum science experimental satellite (referred to as "quantum satellite") with the Long March II carrier rocket at Jiuquan Satellite Launch Center.
5. Snow Dragon Polar Research Ship
Snow Dragon, the third-generation polar icebreaker and scientific research ship in China, is a Vitus Bering-class icebreaker built by Ukrainian Hellson Shipyard on March 25th, 1993.
China was imported from Ukraine in 1993 and transformed according to the needs of China. "Snow Dragon" is the largest polar research ship in China and the only ship in China that can break the ice in the polar regions.
Snow Dragon Boat is cold-resistant, and can continuously break through 1.2m thick ice layer (including .2m snow) at a speed of 1.5 knots. In October 1994, the Antarctic scientific research and material supply and transportation were carried out for the first time. The "Snow Dragon" has been to the South Pole for 31 times.
Up to July 214, it has made six trips to the Arctic for scientific investigation and replenishment transportation, covering five oceans, setting a number of new records in China's maritime history.
on March 11th, 218, China's 34th Antarctic expedition, which was carrying out a comprehensive marine survey mission in amundsen sea and its adjacent waters, went deep into the central sea area of the westerlies and the cyclone-affected area on the polar research ship "Snow Dragon", and obtained the observation data of the full depth section in the core area of Antarctic circumpolar current.
Baidu Encyclopedia-Long March-1 rocket
Baidu Encyclopedia-Beidou satellite navigation test system
Baidu Encyclopedia-Tianhe No.2 supercomputer
Baidu Encyclopedia-Mozi quantum communication satellite
Baidu Encyclopedia-Snow Dragon polar research ship.