1. Ancient inventions
1. Papermaking
Cai Lun —— From 62 to 121, Cai Lun made paper with bark, hemp head, rags and old fishing nets as raw materials. This invention was reported to the emperor in 15. In 114, he was named Dragon Pavilion Hou by the emperor. At that time, people called paper Cai Hou paper. In the 12th century, papermaking was indirectly introduced to Europe. In the 13th century, Mongolians issued the first paper money in Persia with Cai Hou paper. The cards then spread to Europe through Arab countries.
2. Movable type printing
Movable type printing was invented by the people of China in the Northern Song Dynasty as early as the 11th century. Printing, as one of the "four great inventions" in ancient China, had a great influence on the progress of world civilization and the development of human culture.
The invention of movable type printing is a great technological revolution in the history of printing. It is a printing method, which uses movable metal or clay blocks to replace traditional copying or non-reusable printing plates.
2. Modern inventions
1. Synthetic bovine insulin
On September 17th, 1965, scientists in China synthesized crystalline bovine insulin by artificial method for the first time in the world. The synthesis of artificial bovine insulin indicates that human beings have taken a key step in the journey of understanding life and exploring the mysteries of life, and its significance and influence are enormous.
This is the first time that human beings have artificially synthesized a living protein. In the past, the world generally believed that life was natural, and most people thought that it was impossible to synthesize life artificially. China people made it possible for the first time.
2. Hybrid rice (inventor: Yuan Longping)
The western world says that hybrid rice is "Oriental magic rice". His achievements not only solved the problem of eating in China to a great extent, but also were considered as the magic weapon to solve the problem of world hunger in the next century.
internationally, hybrid rice is even regarded as the fifth invention of China after the four great inventions, and it is called "the second green revolution". Yuan Longping is known as the father of hybrid rice in the world, and his contribution to solving the world hunger problem has benefited hundreds of millions of people.
III. Modern Invention
1. Compound artemether
Compound artemether is the first drug with a brand-new chemical structure discovered in China, and it is also an original drug in China that has been widely recognized internationally. By the end of 25, it has been designated as the first-line drug for malaria treatment by 26 Asian and African countries, which is a milestone in the history of malaria treatment. ?
Compound artemether is still the only patented drug in China that is widely recognized and sold in the world, and the only drug in China that really goes to the world.
2. Laser phototypesetting of Chinese characters
This achievement has opened a smooth road for the world's most voluminous characters-Chinese characters bid farewell to type printing. It is of great significance to realize the modernization of press, publication and printing in China.
it has aroused the amazement of the printing industry in the contemporary world, and is known as the second revolution of printing technology in China. Chinese can be written into a computer, which means that other non-phonetic languages in the world can be written into a computer. China's wisdom has made outstanding contributions to the world.
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