Application Writing Materials (124)- Examples of Science and Technology

1, Tianhe-2 supercomputer

In 20 13, China Tianhe No.2 was officially unveiled. In the following three years, Tianhe No.2 maintained its "six consecutive championships" and ranked first in the global supercomputer rankings. Tianhe topped the list with its excellent performance of peak operation speed of 549 million times per second and continuous operation speed of 339 million times per second. Tianhe No.2 has been applied in biomedicine, new materials, engineering design and simulation analysis, weather forecast, smart city, e-commerce, cloud computing and big data, digital media, animation design and other fields, and will be widely used in big science, big engineering, information technology and other fields, providing important support for economic and social transformation and upgrading.

2. Wukong detector

China's "Wukong" dark matter exploration satellite is charged with the mission of searching for evidence of the existence of dark matter in space. It is the space detector with the widest observation energy range and the best energy resolution so far, surpassing all similar detectors in the world. The technical index of scientific load has reached the international advanced level.

3. China's high-speed railway

The construction of high-speed rail in China started during the 11th Five-Year Plan period. By the end of 20 15, the operating mileage of China's high-speed railways will reach18,000 kilometers, and a high-speed railway network with high-speed railways as the skeleton will be basically built, including interregional high-speed railways, intercity railways and speed-up lines on existing lines, with a total scale of over 40,000 kilometers and basically covering cities with a population of over 500,000.

4. Domestic large aircraft

Strictly speaking, in the international shipping system, it is customary to call a passenger plane with more than 300 seats a large passenger plane; In China, people usually refer to passenger planes with more than 150 seats as large passenger planes. The large domestic aircraft C9 19 rolled off the production line, which reflected the progress of science and technology in China. C stands for the aircraft manufacturer COMAC, and also stands for China. The first number 9 in "9 19" stands for "everlasting" in Chinese. "19" means that the maximum passenger capacity of this model reaches 190 passengers.

Under the wheel of history, we have gone from the Stone Age to the Iron Bronze Age, to age of steam, to the electrical age, and finally to the present information age. Technology, like life, is constantly evolving. For example, the evolution of aircraft, the first aircraft made by Wright brothers to our current large aircraft, military aircraft; Richard. Trevithick created the world's first train, which is now the China high-speed rail.