Bi Sheng (about 97 1- 105 1) was born in Hezhi Township, Qishui County, Zhou Qi, Hubei Province (now Wuguidun Village, Caopandi Town, yingshan county City, Huanggang City, Hubei Province), during the Northern Song Dynasty. A great inventor in ancient China. He invented movable type printing, more than 400 years before Gutenberg invented metal movable type printing.
In the early Song Dynasty, he was an engraver in Hangzhou Bookstore. During the Song and Qing Dynasties (1041-1048), he invented movable type printing technology based on his own practical experience, that is, engraving words on a clay tablet, printing one word at a time, and hardening with fire to form movable type. Bi Sheng died before this technology was popularized. His words were collected by Shen Kuo's family, and his deeds can be found in Shen Kuo's Meng Qian Bi Tan.
Movable type printing has many advantages, such as multi-purpose, repeated use, fast printing speed, saving time and labor, and saving materials. It is more economical and convenient than full-page engraving, which is a qualitative leap in the history of printing technology and has a great and far-reaching impact on the printing progress of later generations and even the world civilization. With the compass, gunpowder, papermaking and four great inventions of ancient china. Bi Sheng's tombstone was found in 1990 yingshan county, Hubei province.
2. Cai Lun invented papermaking.
Cai Lun (? -12 1) from Guiyang county in the eastern Han dynasty. In the last years of Han Yongping, he entered the palace as a minister. In the second year of Zhanghe (AD 88), Cai Lun was promoted to be a regular servant because of his meritorious service to the Empress Dowager, and Cai Lun also held an official position.
Cai Lun summed up people's paper-making experience in the past, innovated the paper-making technology, and finally made "Cai Hou Paper". In the first year of Yuanxing (A.D. 105), it was reported to the court, and Emperor Wu of the Han Dynasty and Emperor Wu of the Han Dynasty ordered the popularization of his papermaking method. In the first year of Jianguang (A.D. 12 1), he committed suicide because of a power struggle.
Bell invented the telephone.
Alexander Graham Bell (1March 3, 847-1August 2, 922) was an American inventor and entrepreneur.
He obtained the patent right of the world's first available telephone and founded the Bell Telephone Company (AT & amp； The predecessor of t company). There is still controversy about the inventor of the telephone. On June 5th, 2002, the US Congress recognized antonio meucci, an Italian, as the inventor of the telephone.
The Canadian Parliament passed a resolution on June 2 1 2002, reaffirming that Bell was the inventor of the telephone, while others believed that Elisha Gray was the inventor of the telephone.
Edison invented electric light, film, telegraph, telephone, phonograph, copier, etc.
Thomas Alva Edison (1847, February11-1,10, 10/8) was born in Milan, Ohio. Inventors and entrepreneurs.
Edison was the first person in human history to make use of a large number of production principles and electrical engineering research laboratories to patent inventions, which had a far-reaching impact on the world. His invention of the phonograph, movie camera and electric light had a great influence on the world. He had more than 2,000 inventions and 1000 patents in his life. Edison was named the ninth among 100 people who influenced the United States by the authoritative American periodical Atlantic Monthly.
Nobel invented explosives.
Alfred bernhard nobel, Swedish chemist, engineer, inventor, military equipment manufacturer and explosive inventor, was born in Stockholm on June 2/9261833, and died on February 26/Kloc-0. Nobel has 355 patented inventions in his life, and has opened about 100 companies and factories in 20 countries on five continents, such as Europe and America, and accumulated huge wealth.
1895, Nobel ordered to use most of his legacy (about 9.2 million US dollars) as a fund, divide the annual interest into five parts, and set up the Nobel Prize, which is divided into five categories: physics prize, chemistry prize, physiology or medicine prize, literature prize and peace prize, and awarded to people all over the world who have made great contributions to mankind in these fields. In order to commemorate Nobel's contribution, artificial elements are named after Nobel.
References:
Baidu encyclopedia-inventor