After a period of scramble, everyone took refuge in safety. Seeing that everything had been hidden, Wu Shigong also relaxed. He rolled over on the grass and lay on his back on the grass.

The afternoon sun in early winter is very warm. The whole body is lazy. Wu Shigong's interest also rose, and he whistled smoothly. He played the same German military song during World War II, which was the episode in the movie "The Great New York Robbery".

The tune is fast-paced, and it resonates with the soldiers. So after a while, Zhou Xun and Zhizhi, who were on both sides of Wu Shigong's body, also turned over and lay on their backs, and the three of them lay on the grass and whistled together.

The officers and soldiers all around them also gathered around, and they didn't care that there were still rebel shells flying over their heads, and there was no danger anyway. Whistlers also joined in. I can't blow it, and I hum it quietly to the beat. It suddenly turned into a battlefield whistle concert.

The atmosphere is getting hotter and hotter. When a syllable was blown on the zuihou, everyone laughed at the same time and let out a burst of cheers, and then they all hahadaxiao applauded. It's really a group of bitter children who are happy in the midst of suffering!

After the applause, Wu Shigong asked Zhi with a smile: "I didn't expect you, a little monk, to whistle!" ”

Intelligence was surprised. He replied, "Why can't the little monk give a?" There is nothing wrong with such graceful things. ”

"Yashi?" Wu Shigong was a little confused by the second monk. In Wu Shigong's modern memory, those who whistle are generally petty hooligans, and they are often low-level hooligans who flirt with women.

When Wu Shigong raised his question, Zhizhi looked at Wu Shigong with contempt and unlearned eyes, and answered Wu Shigong's question.

In the introduction of intelligence, Wu Shigong knew. It turns out that whistling is also called. Of course, Wu Shigong is very familiar with the term. But in ancient times, there were two interpretations of the flute, one was to play a musical instrument called "flute", and the other was to whistle. Of course, in modern times, the has become an explanation again. I won't say much about the explanation, otherwise I will have to brush my teeth immediately.

Among the ancient literati, blowing the flute, that is, whistling, was also a very elegant behavior. For example, among the Seven Sages of the Bamboo Forest during the Wei, Jin, Southern and Northern Dynasties. There are a lot of masters.

Now Wu Shigong understands that in many ancient texts, a long whistle means a long and loud whistle! But it's right to think about it, not necessarily those literati and scholars screamed like wild beasts. That's not a Magi, that's a golden monkey.

Wu Shigong is at this time. Only then did I know that the turned out to be an elegant sport. He had a lewd smile on his face, thinking about it after returning to Runing. Which wife are you looking for is elegant and elegant?

That's when it happened. The second round of artillery shells from the rebels came. Of course, to the concealed haode Wu Shigong, they were unscathed. However, when Wu Shigong saw the cannonball flying over his head and falling far away, he immediately put away his smile and his eyes were bright.

"Get out of the way! Get out of the way! Wu Shigong sat up and waved his hand repeatedly. The officers and soldiers who were around gave way to the sides with puzzled faces. Another cannonball flew by, and Wu Shigong only saw that the cannonball fell far away into the stream in the valley, causing a wave.

"Hahahahaha!" Wu Shigong immediately looked up to the sky and smiled. While laughing. He pointed to the cannonball rolling on the edge of the creek in the distance and asked Zhou Xun, "Do you know what this is?" ”

Zhou Xun was asked a little inexplicably, and he replied with some uncertainty: "That's an iron bullet, oh! No! It's a cannonball. ”

Wu Shigong immediately glanced at Zhou Xun. "That's called a parabola." It's terrible to have no knowledge! ”

"What? What line? "Zhou Xun is even more incomprehensible. He looked around with an inquiring eye, and found that no one understood the new term in the mouth of Lord Toji.

Wu Shigong didn't care about the patrol. He flipped over again, crouched forward, and exposed his head to the top of the mountain. Wu Shigong looked at the masts of the ships exposed in the city wall from a distance, and said fiercely: "Damn! If you dare to play with Lao Tzu, then Lao Tzu will use the cannon to kill you. ”

Before he finished speaking, seeing that his adult might be in danger, the officers and personal soldiers immediately rushed up and dragged Wu Shigong down by the legs. made Wu Shigong chew a mouthful of mud.

Wu Shigong was still in a good mood and did not blame his subordinates for their rude behavior. He spit out several mouthfuls, and then couldn't help but daxiao: "I'm a genius!" Haha! ”

Seeing Wu Shigong constantly doing neurotic actions, the friends of Runing Camp were stunned. But in view of Wu Shigong's long-term accumulation, no one dared to come forward to persuade him.

Still the identity of the intelligent is more transcendent, he cautiously approached Wu Shigong and asked, "My lord, are you okay?" ”

"What's the matter with me? I'm a genius! Haha! Wu Shigong was still going crazy, "Parabola! Genius! Then Wu Shigong turned his head to intelligence and asked, "You say, am I a genius?" ”

At this time, the intelligence was sure that Wu Shigong was crazy, but looking at Wu Shigong's expression was very excited, and the intelligence was also a little scared, he trembled and said, "My lord, don't come here!" Little Monk ...... The little monk came down from the Shaolin Temple! ”

"!" Wu Shigong immediately scolded, "It turns out that you all think I'm crazy!" I can't make sense with you stupid people. Cut! When the traitor's cannon is over, we'll go back together. ”

Everyone breathed a sigh of relief when they heard this clear sentence. Stupid is stupid. As long as you don't go crazy anymore, grandpa.

In fact, Wu Shigong's discovery is not unusual. But for the artillery tactics of the time, it was a groundbreaking innovation.

During these days, the sea is completely frozen. The rebel ships were also trapped in the water city of Dengzhou City. It should be said that with the protection of two walls, those ships are just quite safe. But unfortunately, they met Wu Shigong, a man who traveled from modern times.

Modern people know that cannonballs can pass through a parabola, cross the city walls, and hit targets behind the city walls. This is known even to people like Wu Shigong, who only have a Chinese understanding at the beginning. Of course, this is the difference between a cannon and a howitzer in modern artillery.

And in the Ming Dynasty, both in the East and the West, all artillery was fired directly. It's not that the ancients didn't know the principle of parabola. The main reason is that, first of all, because mathematics and mechanics at that time had not developed to a certain extent, it was not possible to develop ballistics, so if the shell was bent fired, it was impossible to calculate the impact point of the shell.

Also, modern times basically use flowering bombs. Modern artillery shells, whether they explode in the air or penetrate the ground, have a lethal power around the point of impact. And the shells of the Ming Dynasty at that time were all solid. Its lethal power is through the jump of the shell, forming a straight line, forming a lethal one. So the impact point is not too big.

But here in Dengzhou City, it is an exception. Because of the protection of the city walls, the direct fire artillery of the Ming army happened to break the masts of several rebel ships at most. And for the rebels, it is also convenient to repair those masts.

But if it can be curved, it is possible to smash through the deck and bottom of the ship, completely depriving these ships of the ability to sail at sea. And for the rebels, those ships are a way out for them! So shooting at those ships is a mortal threat to the rebels.

However, theoretical matters are easy to handle, and there are still many problems to be solved in practical shooting. So Wu Shigong gradually calmed down. He had to wait for the rebels to finish the shelling and then return to his camp to confirm his idea.

After another quarter of an hour, seeing that their shelling had no effect, the rebels stopped wasting shells, and they packed up their artillery and went down to rest on the wall. And Wu Shigong and the others also returned to their camp.

When he returned to the camp, Wu Shigong gathered all the officers and put forward his own ideas, and after listening to them, everyone felt that what Wu Shigong said made some sense. After all, everyone has seen how rocks fly through the air.

However, it still needs to be determined by experts. However, there is only one soil expert here - Liang Hui, the commander of the artillery team. Of course, Liang Hui, the commander of the artillery team, also mentioned the problem of the impact point. Wu Shigong is also difficult to answer this question, of course, he can't calculate the impact point. However, Wu Shigong proposed that it could be solved by local methods.

The first thing to do was to measure the distance of the artillery position to the water city. On-site field measurements are certainly impossible. But with the sketch of the castle that the guide recalled, and the fact that he had drawn a parallel line outside the western city wall, Zuihou had estimated the distance to be about three hundred and fifty paces.

Then came the test launch outside the city. The Henan army immediately mobilized manpower and cleared a mile-long open space within three days as a firing ground for artillery.

There is also the need to solve the problem of the recoil of artillery. Originally, when the gun was fired directly, the recoil could be reduced a lot due to the retreat of the gun carriage. And now, the recoil of the curved artillery is basically borne by the cannon body, so can the artillery still bear it?

There was only a thick cushioning material behind the gun. For this reason, a full hundred quilts were squeezed out of the Runing camp.

Of course, there are other miscellaneous preparations. For example: the division of site distance; further standards for the amount of gunpowder charged; Simulating city walls and simulating ships and more. Anyway, it took more than ten days to prepare for all this.

On October 22, the fifth year of Chongzhen, a milestone event in the history of scientific development occurred in the history of time and space. The curved artillery of the Runing battalion was officially launched on a trial basis. (To be continued......)