C1574

Xiao Peng gained a lot after going to the town. He directly shot down four non man machine machines with a counter gun.

"Are you crazy?" Xiao Peng chopped up the drone directly.

Now no man machine aerial photography has gradually become the treasure of many photography lovers, but also caused a lot of accidents.

The state has also formulated laws and regulations, which require real name registration when purchasing unmanned aircraft, and report the take-off position through the civil unmanned aircraft management service system when taking off, and the flight radius shall not be greater than 500 meters. However, when large-scale unmanned machine is used, it is necessary to submit materials to the public safety machine related department.

However, many people found it troublesome to start the so-called "black flying", which caused a lot of accidents.

There are airports and docks in Sidao town. These are the no fly areas for UAVs. Therefore, all the UAVs that appear here are all black and white! If someone dares to come to Xiao Peng and ask for no man machine? Send directly to detention for ten days plus a fine!

Xiao Yi came over and looked at the broken man machine: "Dad, this is a pity, isn't it?"

"What a pity?" Xiao Peng touched Xiao Yi's head: "if you want to play Wu Man Ji, go to find uncle Mengzi. He has a lot there. It's OK to play on our island, but it can't be played here. It can cause great danger for the plane to land."

Xiao Ge said to Xiao Peng, "Dad, you give me this reverse gun to play with. I will fight when I see it here!"

Xiao Peng shook his head: "here electromagnetic wave has an impact on the human body, you must aim at no man machine to use, you don't play."

Xiao Yi said, "is this amazing? Flying well, you face him and he comes down? "

When the latter is introduced to the UAV, it will send the signal of anti-jamming to the UAV, which is similar to the anti-jamming signal of the UAV

"The technology is so advanced, I thought it would take a gun to shoot down the drone," Shaw sighed

Xiao Yi gave him a look: "do you think it's those anti Japanese dramas? Can you shoot a fly machine with a gun

On one side, sun Pengcheng said: "children, on this issue, I want to tell you that it is not impossible to shoot fly plane with a gun."

"Well?" Xiao Yi and Xiao Ge look at Sun Pengcheng together.

Sun Pengcheng explained: "in fact, in the history of our national war, there are real cases of rifles shooting down airplanes. What can be found is that in 1932, the Red Army soldier Wang Wenli shot down a national army plane with his rifle; and in 1943, song Lingchun shot down a Japanese plane. When old airplanes are attacking, scouting or dropping bombs, many planes have to lower their altitude for diving attack, so it's not surprising that guns have been used to shoot down airplanes. "

"Dad, is uncle sun right?" Xiao Yi asked.

Xiao Peng nodded: "your uncle has been a soldier for so many years, he will certainly not cheat you."

Sun Pengcheng continued: "in fact, we had no air defense force at all when we saw that time. At that time, Baodao reconnaissance aircraft and xingtiao state came to our national airspace like visiting the door. At that time, our people's daily even protested against the invasion of xingtiao's aircraft 400 times in 1966. If you fall behind, you will be beaten. This is no way. At that time, there was even a special textbook in the army, called "how to hit a plane", which was to teach how to use machine guns and rifles to shoot down an aircraft. At that time, when we saw an airplane, we really hit it with a machine gun. Later, we set up the 543 army in China, that is, the ground to air missile force, which has made great achievements in the war. It was not until 1974 that foreign planes came to the end of the situation that foreign planes did not come to the streets. Xiao Yi, Xiao Ge, after all, you came to China later. You think China is very safe and peaceful. All these are really bought by the revolutionary ancestors. China is not a country of immigrants. Not everyone can be Chinese. You should cherish it. "

Xiao Peng patted sun Pengcheng and said, "OK, don't go to the top line easily. Their future path is their own, we can't give them a choice."

Xiao Yi said: "Dad, I really think it's great to be a Chinese. I like Chinese culture. The more you learn, the more you indulge in Chinese culture. The Chinese people are simply amazing. There are four great inventions in ancient times, including the armillary sphere, the seismograph, and the immortal sword that has been unearthed for thousands of years

Xiao Peng interrupted Xiao Yi's words with a wave: "Xiao Yi, you like Chinese culture, you can go in-depth research, but don't be superstitious about it. Like you said about the seismograph, you know? Today, no one in the world can accurately predict earthquakes, let alone ancient people. "

"What's going on with the seismograph?" Xiao Yi asked.

Xiao Peng laughed: "I ask you, what is the seismograph like?"

Xiao Ge raised his hand and said, "I know, I know. It's introduced in the book. It's a big ball. There are eight dragons on the top and eight toads squatting under it. Then there is a ball in the dragon's mouth. Where happens, the ball will fall down and fall into the mouth of the toad in front of it."Sun Pengcheng didn't understand and asked, "brother Peng, what's your problem? When we went to school, there were introductions in history books."

Xiao Peng nodded his head and said, "now it has been deleted from the textbook. Just like Sima Wu Ding should be called" stepmother Wu Ding ", we have learned a lot of wrong knowledge. Seismometers are deceptive. "

"What?" Sun Pengcheng grew up together.

Xiao Peng said: "Zhang Heng was a great scientist in the Eastern Han Dynasty. According to the level of science and technology at that time, Zhang Heng was really powerful. He was involved in astronomy, geography, mathematics and meteorology. However, it is only about "Li Yi" in the book "Zhang Zhuan". The so-called "seismograph" that we see now is a copy made by modern people in 1951 according to their imagination. However, because of its high appearance, it directly becomes the appearance of the so-called "seismograph". What's more, the so-called "seismograph" is useless at all. It's just good-looking. "

"In fact, this restoration seismograph was not made by the Chinese people, but by a Japanese person named fujibu Yisan. When he studied in xingtiao country in 1875, he restored a seismometer based on the upright pole principle, but it failed. Later, a British geological engineer named John Milne also made one. He adopted the horizontal pendulum principle and failed But this has been seen by Chinese geologists. On the basis of Milne's Seismological principle, another one has been made, which is the "appearance" you see now. As a result, these restorations are all the same, that is, they can only be seen on the display, without any practical value. "

"Er Xiao Yi was shocked and asked Xiao Peng, "why is this fake all over the country now?"

Xiao Peng said: "you have to consider that time, when the country was just founded and the country was poor and destitute, some things were needed to improve the national self-confidence. Whether the seismograph was effective or not, and whether Zhang Heng had such a superb seismic survey level in those years, no one knows, but it is always in the teaching books. Now our country is really strong, and the backbone is really straight, so it is time for these products to be launched on the historical stage. Xiao Yi, you just mentioned the four great inventions. In fact, there is basically no Chinese "four great inventions" in foreign countries. This term was highly praised during the Anti Japanese War and also to enhance national pride. "

"For example, printing is considered by the west to be the printing press invented by Gutenberg, a German in the 15th century. The Chinese say that Bi Sheng was born in the Song Dynasty, hundreds of years earlier than the Germans. However, western scholars have questioned that if movable type printing was really invented in the song Dynasty, why did the Ming Dynasty's" Romance of the Three Kingdoms "and the Qing Dynasty's" dream of Red Mansions "use woodblock printing

"The earliest invention of papermaking should be Egypt, which is straw paper. In a strict sense, Cai Lun's technology is an improvement, but this improvement has made the greatest contribution to the world."

"Gunpowder was first invented in China. At that time, Taoists studied alchemy, but its power was very small and it didn't spread much. But the West found the best formula, developed the black fire medicine, and later invented the yellow powder, so that the era of heat weapon weapon came

"And as for the compass...... I don't know how to say it. In terms of historical records, when the three emperors and five emperors were in power, there was a legend of the Yellow Emperor's driving guide car fighting against Chiyou. In general, it was the battle between the Yellow Emperor and Chiyou. Chiyou let out a fog, and the Yellow Emperor's army could not see the direction of its advance. Then the Yellow Emperor created a tool to guide the direction of the car. There was a dummy on the car, and his finger was in the south, which could be distinguished by walking with the car Direction. Later, it was said that Sinan was made of magnetite and was also used for navigation, but it was almost ridiculous that the magnet was applied to navigation! Let's just say, how the famous Zheng He fleet navigated is still a mystery today! By the way, do you know what Sinan is? "

Xiao Yi replied in a hurry: "I know this. It's written in the history book. The earliest written record is Han Feizi in the spring and Autumn period, in which it is recorded that people in today's Cishan mountain in Handan use magnetic stone as a guide tool; in the book Lun Heng written by Wang Chong in the southeast period, there is also a saying that "Sinan's ladle is thrown into the ground, and it is based on the guide". Therefore, Sinan is a smooth bronze plate with a spoon on it, and there can be scales on the bronze plate. "

After hearing this, sun Pengcheng said: "brother Peng, it's very difficult for you to test the children's test points. The fool knows the answer to such a question."

Xiao Peng gave the answer: "what you may not know is that the" Sinan "we saw and the" seismograph "we just said were both imagined by an archaeologist named Wang Zhenduo based on ancient books. It's useless. "

"Ah?"

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