1. Chinese scientists use chemical substances to synthesize intact active chromosomes
Chinese scientists have used chemical substances to synthesize four artificially designed Saccharomyces cerevisiae chromosomes, marking a major step forward for human beings to "recreate life." The study used small molecule nucleotides to accurately synthesize living eukaryotic chromosomes. For the first time, the artificial gene was combined into a complete match between the sequence and the designed sequence, and the obtained yeast genome had complete life activity. The results of the study were published in Science on March 10, 2017. China has become the second country with the ability to design and build eukaryotic genomes after the United States. Since 2012, Tianjin University, Tsinghua University and Shenzhen Huada Gene Research Institute have cooperated with research institutes in the United States and other countries to promote the yeast gene combination into an international plan (Sc2.0) for artificial redesign and chemistry of the Saccharomyces cerevisiae genome. Reengineering. The four Saccharomyces cerevisiae chromosomes successfully synthesized by Chinese scientists accounted for 2/3 of the synthetic chromosomes in the Sc2.0 program.
2. Domestic water gliders dive 6329 meters to set a new world record
China's self-developed "Haiyi" water glider was completed in March 2017 in the Mariana Trench Challenger Abyss, completed a large depth dive observation mission and safely recovered, the maximum dive depth reached 6329 meters, refreshing the water glider The world record for maximum dive depth. The “Haiyi” water glider is a new underwater observation platform with complete independent intellectual property rights developed by the Shenyang Institute of Automation of the Chinese Academy of Sciences according to the deployment of the B-class strategic pilot project of the Chinese Academy of Sciences. From the research and development of the prototype to the successful completion of the abyss observation mission, it has experienced 13 years, including more than 20 different types of water gliders in shallow sea, deep sea and abyss. The "Sea Wing" completed 12 submersibles in the Mariana Trench, with a total range of more than 134.6 kilometers, collecting a large number of high-resolution abyss water information, providing valuable valuable information for marine scientists to study the hydrological characteristics of the region. data.
3. The world's first optical quantum computer surpassing the early classic computer was born
On May 3, 2017, the academic team of Academician Pan Jianwei of the University of Science and Technology of China announced the successful construction of the optical quantum computer. The Pan Jianwei team has always maintained an international leading level in the field of multiphoton entanglement. The team used the self-developed comprehensive performance international optimal quantum dot single photon source to construct multi-photon "Bose sampling" through electronically programmable programmable quantum wires. The mission of the quantum quantum computing prototype. Experimental tests have shown that the prototype's sampling speed is at least 24,000 times faster than that of international counterparts. Compared with the classical algorithm, it is 10 times faster than the first tube computer and the first transistor computer in human history. Times. This light quantum computer marks a breakthrough in the research of photonic-based quantum computers in China, and lays a solid foundation for the ultimate realization of quantum computing beyond the classical computing power.
4. The domestic large passenger aircraft C919 first flight
China's first internationally mainstream domestic large-scale passenger aircraft C919 made its first flight at Shanghai Pudong International Airport at 14 o'clock on May 5, 2017. The full name of C919 is "COMAC919", COMAC is the abbreviation of the English name of C919, the main manufacturer of C919. "C" is the first letter of "COMAC" and the first letter of Chinese name "CHINA" in China. It embodies that the large passenger aircraft is the will of the country and the expectations of the people. The first 9 meaning "long-lasting", 19 means that the C919 large passenger plane has a maximum capacity of 190 passengers. C919 has completely independent intellectual property rights and is a landmark project for building an innovative country. It embodies the best design talents and engineering talents in China. For advanced aerodynamic layout, structural materials and airborne systems, the developer has planned 102 key points. Technical research, including aircraft engine integration design, fly-by-wire control system control law design, active control technology.