The ancient windows were made of paper paste, and they burst when you poked them with your hand, can you really resist the storm?
In ancient times, whether it was a prince or a nobleman, or a poor person, their houses had something in common - the windows and doors were covered with a thick layer of paper.
Paper here is not something to write or draw in the modern sense, but a necessity of life with a special function. Not only do they protect against the biting cold winds of winter, but they also protect them from the heat and humidity of summer. I can't help but wonder, does such a thin layer of paper really have such a big effect?
The earliest windows used by ancient people were made of animal skin, and although the leather was strong, it was not effective in preventing air circulation, so it was quickly obsolete.
Then silk curtains appeared, but this was no less expensive and not suitable for ordinary people, so the ancient ancestors found an affordable option for linen.
Linen is a fabric woven from plant fibers, which has a tough texture and low cost, and linen can also be processed to increase its waterproof performance.
This method is called "oiled paper", and it is ideal for making paper windows, and in order to further enhance the durability and stability of paper windows, the ancients would also add circles of wooden window lattices to their surface.
In order to make the paper waterproof, tung oil or yellow wax is specially added to it, and even soybean oil is used in some places, so that the window paper can not only be waterproof but also prevent heatstroke.
But the only drawback is that his quality is not perfect enough, and it needs to be replaced every once in a while, otherwise it is easy to break and break. With the passage of time and the advancement of technology, people's understanding of paper has also become more and more deep. In addition to being the main covering for windows and doors, paper has many other uses.
For example, during the cold winter months, paper is cut to size and sewn together to make practical pieces of clothing, the so-called "paper clothes".
Because of its cheap and easy availability, it has also become an important raw material for making beds and wrapping items. The most impressive area of application is in the manufacture of weapons.
It is well known that early armies relied mainly on stone and bronze tools for combat, and later, with the development of technology, people realized that metal armor was more reliable.
However, due to the fact that steel production was not developed at that time, the price was high, and civilian soldiers simply could not afford it. Therefore, there is no other way but to look for alternatives.
Using paper as armor can not help but be light and can resist some attacks, so it can be seen that paper has played an important role in the field of protective clothing.
Paper armor was gradually widely promoted in the Tang Dynasty and was well received. In particular, the warship sailors in the southern regions preferred paper armor that was both light and strong to bulky iron armor.
Even if the paper itself does not have much defensive power, on the premise that the weight is only about one-third of the iron piece, paper armor can still help the warrior to reduce the burden to a certain extent, thereby increasing the survival rate.
The seemingly thin paper hides such a powerful potential.
