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There are many striking differences between ancient cities and modern cities. One of the most significant differences is the way the gates are designed and opened. An interesting phenomenon is that almost all ancient city gates, regardless of dynasty, opened inward, while few opened outward. This has aroused people's curiosity, why are most of the ancient city gates open inward?
In fact, the reason why the gates of ancient cities opened inward can be explained in two ways:
First of all, considering that wars often broke out in ancient times, the design of the city gates had to be strong enough. Ancient city gates are different from modern times, they are not installed on the door frame, but inserted on the inside of the door frame, connected to the "hub" of the inner wall of the house. The direction in which the gate opens depends on the position of the "hub", if the gate is opened outward, then the "hub" will be exposed to the outside, which will make it easy for the enemy to dismantle the gate, and the defense of the gate will be greatly reduced. In addition, if the city gate is opened outward, in the event of war, soldiers must stand outside the city to close the gate, which is tantamount to putting them in danger, and the process of opening and closing the city gate is full of risks.
Secondly, in peacetime, if the city gate is opened outward, the city gate will be eroded by wind and rain for many years. Considering that most of the ancient city gates were made of wood, this harsh environment will seriously shorten the service life of the city gates. By opening the gate inward and placing it in the door opening of the city wall, it will not be bothered by wind and rain, so the service life of the gate can be extended.
There's no denying the amazing wisdom behind these ancient gate designs. They represent cultures that have been passed down for thousands of years and are a testament to the ingenuity of ancient peoples.
However, it is interesting to note that in modern society, we can also find architectural structures similar to the principle of ancient city gates, that is, windows in buildings. Windows are divided into inner and outer openings according to their opening style, and again, we recommend internal opening windows.
Because the window is opened to the outside, it is easily eroded by wind and rain, and the service life will be greatly reduced, especially the hardware part is easily damaged, which will seriously affect the overall performance of the window, and even there is a risk of falling when opening and closing the window. In contrast, inward-opening windows are not only safer and more durable, but also more convenient when cleaning.
In short, whether it is ancient city gates or windows in modern buildings, their design contains profound truth. By opening the city gate inward, the ancient people guaranteed the safety of the city and extended the service life of the city gate. Similarly, the option of inward opening windows can bring more convenience and safety. These smart designs not only enrich our cultural traditions, but also provide us with valuable lessons.
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