Five rumors have been verified so far, and now less than half of them need to be verified. After a short rest, Li Jingyuan and 5 people began to verify the last rumor of the day.

The myth of this myth: Is it possible to shoot down another arrow flying in the air? It sounds simple, and similar scenes often appear in novels, anime, and movies, but in reality, it is not the case.

It turns out that the arrow does not maintain a straight line when flying in the air, the weight is much heavier than the bullet, and the shooting force is much smaller than that of the bullet, so the flight trajectory of the arrow will become a parabola.

There are so many variables that there are so many variables that there are so many variables that after many experiments and changing various means, the engineers of 5 have not been able to shoot down arrows with arrows.

By this time, the results of the experiment were already in. Some people may say that this kind of thing is still possible, but it is just a coincidence, and the probability will be unimaginably low. It's not something that can be controlled by human beings, and it's not scientific, so fundamentally speaking, it's normal for this rumor to be debunked.

The next day is a rest day, and the engineers of 5 are also humans, not superhuman guys who save the world all year round, so they also have to rest before they can maintain enough energy to work.

Americans may all be students of Comrade Li Dazhao, and they have memorized Li Dazhao's words very well, and they have done a good job. That is, learn seriously when you should learn, and relax and play when you should play. So when it came time to rest, the 5 people didn't mention anything about work, and all of them were doing their own personal things at home.

5 people didn't mention work, but Li Jingyuan was not like this, because in the next experiment, some information would be used, so he also deliberately looked up some information on the Internet.

That's right, the information Li Jingyuan is looking for is the information about the ancient Korean fire box. His familiarity with Chinese history is greater than his familiarity with Korean history, so although Li Jingyuan knew about the Zhuge crossbow and catapult, he did not know that there was a military weapon that was also used in war in ancient Korea.

Lee Kyung-won could imagine that as a Korean, he would definitely be asked questions by Adam and Jamie when he participated in the fire box, and in order not to make a fool of himself at that time, he had to make up for the lesson a little.

In this supplementary lesson, Li Jingyuan realized that the fire box car that Koreans were proud of was not really invented by the Koreans first, and this sharp weapon in the ancient war also came from the wisdom of the Chinese. The prototype of the fire box car is a wheelbarrow combat vehicle equipped with a squadron, the difference is that the fire fighting vehicle used by the Ming army is a one-wheeled type that is easy to maneuver, and a launch box launcher is used. At that time, North Korea's fire van was equipped with 100 barrel-shaped emitters in a wooden frame to install the arrows, although the whole box was replaced when loading, but the arrows had to be temporarily installed in the launcher before the battle, and it was inconvenient to store and use.

It is not enough to have history, Li Jingyuan also looked up the detailed information about the fire van. After investigation, he learned that there was a ready-made fire box car in Seoul, South Korea, which was exhibited in the King Sejong Museum, of course, it is a little difficult for the wooden fire car to be preserved from ancient times to the present for such a long time, this fire car is also made in modern times, but all the production data are the same as history.

In order to obtain the data of this fire van as soon as possible, Li Jingyuan also deliberately contacted the management of the Sejong Museum, and after explaining his identity and meaning, he easily got the data and photos of the exhibition car car.

Originally, Li Jingyuan was still a little dissatisfied, and he wanted to continue to look for information on the Ming army's rocket vehicles of the same era, but after thinking about it, he gave up this idea.

First of all, there is not enough time, the information of the North Korean fire van can be obtained so smoothly, and it is also thanks to the relationship, but it is much more difficult to get the information about the Ming army's rocket car, not to mention whether the physical object or data can be found, even if there are these things, whether people give them or not is another matter, after all, Li Jingyuan's current ID card is issued by South Korea. ,

Besides, Li Jingyuan also knows the general psychology of South Koreans, arrogant but inferior, if he gets the Ming Army rocket car and the North Korean train car out at the same time, the North Korean train car will definitely be compared after comparison, and the South Korean audience will definitely not be happy to see this section, maybe they will say something bad about Li Jingyuan. Although Li Jingyuan knows that he is a Korean traitor, he doesn't want everyone to know about it, even if he is a 'indifferent' character, he will not like to be scolded.

After sorting out the data I received a little, it was time to work after a good night's sleep. Coming to the warehouse-style studio of 5 again, Li Jingyuan and the members of 5 gathered together again.

"Guys, we're going to have a big project next, are you ready?" After the shoot began, Adam stood in front of the camera and said to the crowd.

"I'm the big one, guys, are we going to use explosives?" Hearing Adam's words, Tory cried out with joy.

"Not exactly, there is a rumor that needs to be verified with gunpowder, not TNT or 4 that you like, and that project is a little bit further back, and the first thing we need to verify is this rumor." After that, Adam drew on a blue board and explained as he drew it. This is also a method often used by 5 people to verify rumors, through such a drawing and talking, to discuss the process of verifying rumors, and by the way, to answer some questions for the audience watching the show.

"You mean what we need now is a vat, right?" Grant asked, looking at the schematic diagram Adam had drawn.

Now what we want to verify is the ancient Chinese myth of 'burying the tank and listening to the sound', which is a means of preventing the enemy from attacking the city by digging tunnels. There have also been some actual examples in history, such as the defense of Jinyang in the Tang Anshi Rebellion and the victory of Ningyuan in the seventh year of the Apocalypse at the end of the Ming Dynasty.

"yes, I think we should go straight to Chinatown and see if there's a suitable vat." Adam's words are supported by Jamie, and everyone sets off for Chinatown to pick up the right vat.

After arriving in Chinatown, Li Jingyuan once again played a huge role, his Asian face and proficient Chinese, so that these Chinatown owners are very enthusiastic, so follow Li Jingyuan to dip, 5 people also tasted some special treatment.

When they heard that Li Jingyuan and his party were looking for the vat, someone gave guidance, and under the leadership of this old man, everyone soon came to a porcelain specialty store.

Under the recommendation of the boss, 5 people quickly took a fancy to a large vat, but at this time, Li Jingyuan put forward an opinion.

"Shouldn't we buy a few tanks of different sizes and try them, they might have different results." Li Jingyuan is engaged in music, and he knows a principle, just like chimes, chimes of different sizes will make different sounds, so vats of different sizes may also make different sounds when they feel the vibration. Some of these sounds may not be captured by the human ear, but if you buy a few more large vats, you should be able to avoid denying the results of the experiment because you can't hear the sound.

"You have a point." After listening to Lee Kyung-won's reasoning, Jamie affirmed his opinion.

5 people felt that the experimental conditions were more perfect and were happy, Li Jingyuan was happy because his opinion was accepted, and the porcelain shop owner was happy because he sold a few more jars.

In order to ensure that this 'cowhide drum surface' can make a loud enough sound, Li Jingyuan also took everyone to a Chinese musical instrument store. Then 5 people bought cowhide and drum skin that had been made here.

Everything is bought, and now it's time to get to work. After handing over the skinning job to Tolly, Grant went to tinker with his electronic radio equipment, while Lee Kyung-won followed Jamie to work as a miner. As for Adam, his hearing is not very good, so he has been specially arranged to be a 'listener' like Carrie, which is also to record how different he is from Carrie and the electronic devices. ,

After everything was ready, Grant, who was sitting in front of the computer, sent the signal over the radio to Li Jingyuan and Jamie, who were in the mine.

"Shall we begin?"

"K, ten times in a round, you come first or I come first."

Jamie, who was standing in the abandoned mine, asked Li Jingyuan, and after getting Li Jingyuan's opinion, he temporarily stepped aside, while Li Jingyuan raised the pickaxe high, and then slammed it down, directly hitting the rock wall at the side of the mine.

"How? There is no gain. According to the plan at the beginning, Li Jingyuan dug ten times at the wall of the mine road and then stopped, and then connected to Grant again.

"Hey~~! Guys, you're not going to think of that. This stuff really works, and the effect is still noticeable. Grant quickly replied with an exciting reply: "Guys, I think you can try to change positions, and I can calculate the maximum effective distance of this 'listening device'." ”

According to the command of the ground, Li Jingyuan and Jamie worked as ground rats in the mine, taking turns to change several places, and finally collected enough data after half a day.

"I think the rumors have been confirmed, and this thing is indeed useful, but there is also an important caveat, that is, the soldier who acts as a 'listener' must not be a half-deaf person like Adam." Because Adam's poor hearing didn't hear any sound during the experiment just now, Jamie also piggybacked on him when he published the verification conclusion.