"The arrows don't shoot in a straight line, but in a parabolic path, and you see, that's what it looks like." As he explained, Yang Wenli drew the shape of a parabola with a stone on the ground.

After a month, the arrows were finally dry and ready to use, so Yang Wenli began to teach the young men how to shoot.

"Therefore, we need to raise the bow slightly upwards, and the exact angle of the bow is defined by the distance.

If you look closely, in the upper part of the bow handle, there is a small hammer, the same as the one used by the carpenter.

The hammer is always pointed to the ground, if the bow is straight, then the hammer coincides with the bow, I only need to lift it up slightly, the hammer is exposed, then the angle between the hanging line and the bow body is the angle at which I lift the bow, the higher I lift, the greater the angle of the hanging line.

Let's take a closer look, isn't that so? ”

Yang Wenli explained the principle of archery in great detail, and through personal demonstration, the teenagers really understood the principle of shooting elevation angle.

Yang Wenli didn't wait for the teenagers to answer, he asked himself, "What's the benefit of doing this?" If we specify the angle as a scale, for example, 0 degrees when straight, and 90 degrees when lifting the sky, then the middle scale is between 0 and 90 degrees.

We can be sure that the greater the angle, with the same bow, with the same pull, then the shorter the range, and conversely, the smaller the angle, the longer the range.

That's what the path of the arrow is like. ”

When Yang Wenli said this, he squatted on the ground and drew parabolas of various ranges with stones, so that the teenagers could understand the scientific principles.

"If I estimate that this is 300 meters away from the target, then I estimate that I can only shoot that far with a 10-degree elevation angle."

At this point in the explanation, Yang Wenli shot an arrow at the red heart of the arrow target with a hard bow, only to see that the arrow branch was like lightning, and it was firmly nailed to the bull's-eye in the distance with almost no shadow.

"Wow! That's great! The young master is so good! The teenagers immediately jumped up for joy and praised.

"Huh! In the future, as long as you practice hard, you can also do a hundred steps like me.

Maybe you didn't pay attention, but in fact, the key factor that determines accuracy is not only to judge the distance, but also the wind speed and direction.

Have you noticed? There is a feather on the upper part of the tail stalk of the bow, and I just look at the feather to calculate the wind direction and speed. The stronger the wind, the more the feathers fall, and the less the wind, the straighter the feathers.

If the feather falls to the left, I will deflect the bow slightly to the right, and if the feather falls to the right, I will deflect the bow slightly to the left. As for how much you deviate, it depends on your continuous practice and practice.

There is another factor that is not a factor, and that is that the hand must be steady, and at the moment of aiming and firing, the hand must be steady. Only then will the arrow hit the target according to the path we expected.

Once you understand the reason, how to do it depends on your continuous practice in the future. If you do all three, you're the next archer. ”

Yang Wenli ended his explanation with an inspiring congratulatory speech, and in the future, it will be up to them to explore and practice on their own.

They were fortunate to have Yang Wenli explain the principle of shooting more vividly and systematically, which was much better than the ancients through the dictation of unknown words. Therefore, Yang Wenli estimated that they would basically only need to practice diligently for about a year, and they would be able to achieve the point where there were no arrows.

The distance of 300 meters he just mentioned was that he had instilled the concept of the length of the meter in the teenagers a few years earlier. In ancient times, steps were used to calculate distance, and this unit of length is too abstract. There is a big difference between people's steps, how many steps do you say differ from how many steps he says? Yang Wenli is funny to think about, so he has roughly formulated the standard of rice, although his standard of one meter is definitely not accurate, it is better than an abstract step!

Just when Yang Wenli was teaching the ten young family members wholeheartedly, he unknowingly entered the fourth year of the Apocalypse.

In fact, as early as last year, there was a severe drought in eastern Liaoning, locust plagues were everywhere, and the fields were almost no harvest. The Houjin founded by Nurhachi suffered a major blow, and just after the middle of the month, the old slave issued nine khan orders in succession, ordering the elimination of the grainless people.

The so-called grainless people are people who have no surplus food at home after paying heavy taxes, and Lao Nu plans to kill a group of people to keep the remaining people through the disaster year.

This Khan order was very brutal, and it killed those Han people who were proud of their Manchu masters, so the Han people fled for their lives, that miserable! The people who fled for their lives basically went to nine pavilions out of ten, and only one percent of them escaped with their lives.

The current drought in eastern Liaoning is not accidental, it is caused by the abnormal movement of celestial bodies, and it is a global disaster. First Liaodong outside the Guan, and then the northern provinces within the Guan, such as Shaanxi, Hebei, Shandong and other provinces, this is the root cause of the great chaos in the world in the seventh year of the Apocalypse.

Of course! Whether there is a drought in the north or not, whether it is miserable or not, it has nothing to do with Yang Wenli, he has small arms and legs, and he does not have the ability to intervene. But he also knows that he must step up his follow-up plan, time waits for no one!

Archery Yang Wenli does not need to participate in the whole process, he is already an archer, and he will not always be in front of the charge in the future, so he can not practice archery.

After telling them the principle of shooting accuracy, he didn't need to teach them by hand, they were just poor at practice and practice, he just had to take the time to check their progress from time to time.

Since he doesn't practice archery, then in this year, a lot of time can't be wasted, and Yang Wenli wants to do something new to make money.

These ten young family members are only the first batch, and he has already prepared as many as five words of class characters, which means that he has to train at least five batches of family members. Of course, in the future, he will definitely not teach it personally, nor will he teach it from a teenager again, he will definitely take this skill.

The reason why he trained the teenagers before was because he hadn't grown up himself, and he just happened to train and grow up with the teenagers.

Yang Wenli is very cautious, he will never engage in high-tech products that are not available in this world. It is nothing more than an improvement of an existing product.

What are China's advantages? Needless to say, everyone also knows that it is porcelain, and the English name of China is actually the English name of ceramics, which shows what kind of height the ancient ceramic art has reached.

The porcelain craftsmanship and painting art of the Ming Dynasty have reached a considerable height, especially the porcelain of the Zhengde Dynasty, which has the highest value among the antique porcelain of later generations, and can only be compared with the Kangxi Dynasty of later generations. This is the emperor's own high level of artistic appreciation, which is why this phenomenon is caused.

When it comes to Ming Dynasty porcelain, most people will think of cloisonne, but Yang Wenli does not understand the production process of cloisonne, and he does not have that special glaze. That was the official kiln technology, and Yang Wenli couldn't imitate it.

But Yang Wenli knows that there is one kind of high-quality porcelain that is not yet available, that is, bone china. Bone china is ridiculously expensive porcelain even in modern times, and it will definitely become the most precious porcelain in the Ming Dynasty.

…… To be continued