"Ancient Technology Shines on China" Proud Ancestors and Brilliant Culture PPT (Second Lesson)

"Ancient Technology Shines on China" Proud Ancestors and Brilliant Culture PPT (Second Lesson)

Part One: Learning Objectives

1. Experience my country’s world-leading technological creations in ancient times from bronzes, silks, porcelain, etc.

2. Understand the profound impact and huge contribution my country's four great inventions have had on the development of human society and the progress of world civilization.

As early as 3,000 years ago, our industrious and intelligent ancestors made great achievements in copper smelting technology.

I am Simu Wuding of Dingding fame. The craftsmanship is very complicated and it weighs more than 800 kilograms!

As early as more than 2,000 years ago, my country's skilled craftsmen had invented relatively mature porcelain-making technology.

By the Song Dynasty, my country's porcelain production technology became more mature. The porcelain of this period was of various varieties and exquisitely fired. It was sold overseas and became famous all over the world.

Ancient Technology Shines on China PPT, Part 2: Papermaking

When was the earliest paper made?

When did it first appear? What is it made of? It is made of linen.

In 1986, a paper map was unearthed from an ancient tomb in Tianshui, Gansu. After expert appraisal, it is believed that the paper from the Western Han Dynasty belongs to plant fiber paper.

Cai Lun, a native of Guiyang in the Eastern Han Dynasty, now a native of Leiyang, Hunan Province, was talented and learned. He entered the palace as a eunuch in 75 AD and was later promoted to Fang Ling. He had great research on the manufacturing technology of some industrial supplies, including papermaking. , when he saw that bamboo slips were bulky, silk was too expensive to be popularized, and the quality of plant fiber paper was not satisfactory, he decided to improve it, using bark, hemp heads, rags, old fishing nets, etc. as raw materials. These raw materials were easy to obtain. , waste utilization, the cost is extremely low, and the production procedures are also very simple. After a set of processes such as washing, chōng, and steaming, it can be processed into paper. After he made this paper, he presented it to Emperor He , was praised by Emperor He, and was called Caihou Paper. To this day, papermaking raw materials and technology in the world are promoted on this basis.

The spread of papermaking

Shortly after Cai Lun improved papermaking, North Korea and Vietnam learned papermaking technology from China. Chinese papermaking also spread to some countries in Central Asia, and then to India and Arabia. The earliest paper mills in Arabia were built with help from the Chinese. Through the Arabs, papermaking was introduced to Europe, Africa and the Americas.

Ancient Technology Shines on China PPT, Part Three: Engraving and Printing

During the Sui and Tang Dynasties, woodblock printing appeared in China. People first paste the written words on a flat wooden board, use a knife to carve out the positive characters in reverse, then apply ink on the board, spread the paper flat on the board and print evenly, and finally peel off the paper and bind it into a book.

In the Northern Song Dynasty, Bi Yu invented movable type printing. He carved the clay into type molds and then fired them into movable pottery type, which was used for typesetting and printing. His invention was a milestone in the history of printing development and was called the "Mother of Civilization". Movable type can be used multiple times, which is more time-saving, economical and convenient than full-page engraving. The invention of movable type printing greatly promoted the spread of Chinese and even human culture.

Ancient science and technology shine on my China PPT, the fourth part: I inherit the spirit of the ancients

The glorious scientific and technological achievements of ancient my country are not only the crystallization of the wisdom of scientists and working people, but also the embodiment of their innovative spirit. What inspiration can you get from my country's glorious scientific and technological achievements in ancient times?

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