About the history of the handbag in English plus translations, including inventors, etc

The Four Great Inventions are a view of the history of Chinese science and technology, which refers to the four inventions that had a great impact on the world in ancient China, and are important creations of the ancient Han working people, generally referring to papermaking, compass, gunpowder and movable type printing.

Compass: It is a simple instrument used to determine the direction. Formerly known as Sinan.

The main component is a magnetic needle mounted on a shaft that can be rotated freely. The magnetic needle can remain in the tangent direction of the magnetic meridian under the action of the geomagnetic field. The north pole of the magnetic needle points to the south pole of the geography, and the direction can be discerned by using this property.

It is commonly used in navigation, geodesy, travel and military applications. The n of the compass refers to the north, the e refers to the east, the w refers to the west, and the s compass is square.

Papermaking: It is one of the four great inventions of China and an outstanding invention in the history of human civilization. China is the first country in the world to raise silkworms and weave silk.

The working people of the Han nationality draw silk and weave silk from the cocoons of the silkworms, and the remaining evil cocoons and sick cocoons are made of silk cotton by bleaching method. After the bleaching is completed, there will be some residues left on the mat. When the number of bleaching is too much, the residue on the mat will accumulate into a layer of fiber flakes, which can be peeled off after drying, and can be used for writing.

The number of by-products of this drifting is not large, and it is called Helang or Fang Fu in ancient books. This shows that the origin of Chinese Han papermaking is related to silk wool.

Gunpowder: A black or brown explosive, mechanically mixed with potassium nitrate, charcoal and sulfur, initially made into powder, and later generally made into granules of different sizes, which can be used for different purposes, and has been used as the only military propellant before the introduction of smokeless gunpowder.

Printing: Bi Sheng experimented with wooden movable type, but it was not perfected until the Yuan Dynasty (1271-1368) that Wang Zhen (active 1290-1333) perfected wooden molds. Wang Zhen also placed the characters in a rotary typesetting plate with a small compartment according to the phonetic combination to facilitate the picking up of characters.

As for the copperplate type, it was not until the Ming Dynasty (1368-1644) and Hua Sui (1439-1513) that the printing works were perfected in 1490.

"It's often said that conservatism is deeply rooted in East Asian cultures. For thousands of years, it has deeply bound our country. Is there any evidence of ancient and early China to support this view?

It has long been said that conformism has long been rooted in the culture of the Asian East, so deep that it has become the norm in China for thousands of years. Are there any examples of early ancient China that support this view?

Kindness... Flip it over

"Often living in blind obedience, so deeply rooted in East Asian culture, adherents are the norms in China for tens of thousands of years'." Does the evidence from ancient and early China support that view?

"It's often said that conformism is deeply rooted in East Asian culture, and has been the norm in China for thousands of years. Is there any evidence of ancient and early China to support this view?

"It is often said that conformism is deeply rooted in East Asian culture and deeply obedient to the norms of our country for thousands of years' 。Is there evidence from ancient and early China to support this view?

I'm an English teacher, and the estimate is accurate.

I'll give you Chinese'You have translated it, history has... Wristwatch... The best is Rolex.