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新四大发明 The New Four Inventions
In the old China, the four inventions have great influence on the civilization. However, with the development of technology, the foreigners make a conclusion of the new four inventions of China. They speak highly of Chinese homemade softwares, which bring great convenience to the..
时间:2020-11-25
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中国四大发明
我国西汉时开始用丝絮和麻纤维造纸,现存最早的纸为西汉初期的甘肃天水放马滩纸。公元105年,东汉蔡伦改进造纸术,制成植物纤维纸。我国是世界最早发明造纸术的国家,造纸术在几个世纪以后传到朝鲜、日本、印度和阿拉伯,后来又经过非洲北部传到欧洲。造纸术的发明,推动了我国文化事业的发展,对世界..
时间:2021-05-20