In the era when smartphones failed to popularize the 10-year-old children, the game was popular among boys. The game was a pile of cards placed on the ground, slapped with the palm, and then quickly lifted it up. When lifted up, the suction force brought out from the palm of the palm slightly overturned the paper on the ground. See who overturned the cards more.

During elementary school breaks, you can often see a group of boys lying on the ground with dirty palms on the ground. The principle is that after the sales service of raising the palm, the palms are sunken to form a low-pressure area, and then suddenly lift it up to lift the paper on the ground. (If the young men who have been with the handheld machine since childhood may think this is a bit mysterious, please understand the childhood of civilians.)

The physical phenomenon of this little brat slapped on the ground with his palms and slapped it with a very complex knowledge. It sounds high-end and looks very inconsistent. But the laws of physics are just like Zhuangzi said: "The Tao is in the rubble."

The physical laws in small phenomena should not be ignored because of the energy level. When the energy level is raised to a point worthy of anyone's attention, you will find that those inconspicuous phenomena and grand phenomena actually follow a physical law.

A stone was thrown out and rippled on the water surface, and the one-meter-high water waves caused by the 10,000-ton giant ship was shot into the water, which was two orders of magnitude.

The lawn at the door burns flames and forest fires instantly boil the high-pressure water pump into flames of high-hot steam, which are two orders of magnitude.

Now Lu Jiuchong is trying to shoot the sound, and his "hand" is much larger than that of the child.

On Lu Jiuchong's face, a very sci-fi holographic glasses were added to his nose. After Lu Jiuchong started the operation under the message prompt of the glasses' lens.

At first he just created disorderly winds on the ground. It was obvious that the initial attempt was a failure.

However, the disorderly wind then turned into a shorter and shorter wind. In time, the wind was getting shorter and faster. Lu Jiuzhong made more than twenty attempts. Each attempt at holographic projection would show that his gravitational operation was insufficient in time, so that the air mass he dragged with gravity collapsed under the action of external air pressure due to the long force or the uneven force. As for the consequences of the collapse, the low pressure area below the air mass caused a rapid and turbulent wind.

Air is of mass and 1.29 kilograms per cubic meter, but air is different from solids. It is a fluid. When the fluid is subjected to uneven external forces, it is very likely to collapse under external forces.

Lu Jiuzhong had never tried to change the gravitational effect of air and the earth before, because when he changed the gravitational strength and direction of an air, the air would quickly dissipate into the surrounding air, which made him feel like he picked up a piece of fine sand and could not use force, so he had always been shooting large-scale solids such as rocks and metals. However, the gravity that his superpower could change could only reach up to 5g when it exploded, and when it ejected huge rocks, it could only reach twog. Although Lu Jiuzhong's superpower could almost achieve a volley of thousands of catapults, the energy output was not violent enough.

Now Lu An now provides Lu Jiuzhong with a glasses equipment. Unlike Li Xingji's majestic armor, this glass looks very sci-fi like a motorcyclist's windproof glasses. However, the unprecedented holographic projection on the glasses will prompt Lu Jiuzhong to transform the air when his superpower acts on a large area of ​​air. The air is a fluid, but in a very short time, the air can be regarded as a spring.

When the gravity of a large area of ​​air suddenly changes, each cubic meter of air will inevitably deform when it is changed. Although the elastic potential energy contained in each cubic meter of air is very weak, as long as all the air points the direction of the elastic potential energy rebound to one place, the rebound time will be as short as possible. This will form a gas explosion.

Blow the milk bag full of air, then stomp it hard, and it will make a snap. The air in the milk bag is released concentratedly at the breaking point.

After the 21st time of Lu Jiuchun, a loud bang sounded on this uninhabited beach.

The ground looks like white light flashing on the flat ground, but there is actually no light. This is a strong shock wave of 200 meters per second hitting the ground, which is a plane of steel compared to air. A large amount of dust on the surface is suddenly appeared by the shaft, and the reflection brought by the sudden appearance of the shaft.

The work done by 300,000 cubic meters of air in 0.3g (the direction is opposite to natural gravity) within 0.2 seconds was bounced to the ground with a shock wave in a radius of 20 meters. Then the shock wave scraped off a layer of sand and gravel particles on the ground. Then the shock wave wrapped with a large amount of sand and gravel particles expanded into a prototype range of 150 meters one by one. In this circular area, the dust that has not yet dissipated on the ground shows radiation lines from the center to the surroundings.

In terms of energy, it is actually not stronger than the destructive power of a huge rock hitting it. However, from the perspective of effective damage, most of the energy after each huge rock hits the ground is applied to the ground. Just like the artillery bomb in the first battle, a large amount of energy hits the ground outside the trenches, and shrapnel consume kinetic energy in the air. If a temperature-pressure bomb goes down, the energy acts on the air and can shake soldiers in a street into internal injuries.

Humans live in the air, not in stones. The energy of the trencher smashes a pit on the ground, which is used to hit the ground, and the shock wave effect grinds the ground. Give all targets in the air a tearing force. This force is nothing to solid metal stones, but it is obviously fatal to flesh and blood.

With Lu Jiuchong's success this time, Lu An walked to the sand and gravel test site and checked the damage results. All the mice locked in cages in the cave on the ground were wiped out. There were no scars on the outside, but there was blood on the nose. The data was copied,

At this time, Lu Jiuzhong flew to the sea 600 meters away and continued to try. He seemed to have discovered a fresh game. (The game of taking pictures of paper.) Although Lu Jiuzhong didn't say anything, judging from his performance, he was very interested in this fresh thing. Although his operations were still very unfamiliar, he often only created a chaotic airflow nine times and did not make a sound. However, due to his interest, he continued to try on the beach.

He repeatedly debugged the video of his success recorded by the holographic glasses, carefully savoring his perfect operation when he succeeded. If the people from the Xuanniao tribe saw this scene, they would be surprised that Lu Jiuchong and Lu An were able to get along so well.

In the Xuanniao Department, each department is afraid that Lu Jiuchong might be bored, and is very conservative when designing super-powered methods. Just like the imperial physician treating the emperor, he cannot bear the responsibility, so he is as normal as possible when prescribing the prescription and does not dare to take the medicine.

In fact, the glasses that Lu An made for Lu Jiuchong that can detect the direction of vortex in the air are not very powerful technology. It only shows the situation when the air is under stress, but can also be developed by other super departments. Lu Jiuchong is important to do the scene now and most of the time, it depends on his own contact. The reason why no one developed them for Lu Jiuchong before was because all the researchers considered making this thing, if Lu Jiuchong tried it a few times and said, "This thing is useless to me", it would be equivalent to doing useless work.

The setting of scientific researchers being interested in research has become a setting of "If scientists do not engage in research, they will feel panicked." However, the reality is that scientists are ordinary people. If they do not have enough money and fame and fortune, they will not devote their limited energy to the research direction that cannot be rewarded.

No one wants to do useless work, just like most people don’t want to do homework when they were children. Only adults know that doing homework is useful and force their children to do it will do it. Of course, after growing up, if they have children, they will definitely force the next generation to do it.

However, no one can force Lu Jiuzhong. Now, this super-powered operation method is "using the atmospheric pressure of the 1,000 pars as the bow body, using the 300 tons of compressible air covered by superpower as the bow string, pulling the bow open with gravity superpower, and then creating an inward focused shock wave." It is difficult or easy, just like ordinary people who learn to ride bicycles and swim, they always have to fall a few times and choke a few times to succeed.

However, because of this setback, no one in the Xuanniao Department dared to design this plan for Lu Jiuchong. All researchers focused on the topic of "how to make the gravity superpower have a higher impact on gravity." They did not know how Lu Jiuchong's superpowers felt in terms of use. With Lu Jiuchong's own knowledge, he could not complete the more detailed use of his superpowers. Of course, if Lu Jiuchong had not been plotted by gunpowder once and had been a vegetable man for a year, Lu Jiuchong would not be so active and proficient in this operation that was several times more difficult than his previous stone throwing operation.

The lens is pulled back to the sea

A muffled sound of "collapse" exploded on the sea surface. Under the effect of shock waves, the sea surface aroused a circle of round white water waves. The birds surrounding the waves raised their angles and fled towards the surroundings. In the water waves, a high-speed jet rose from the sea surface (Zhao Mingyi's gravitational control just acted on the sea water, creating a low-pressure cavitation bubble in the sea water)

Lu Jiuzhong looked at the waves on the sea surface, then looked at his hand, and thought to himself: "If you improve your proficiency and create a high-speed shock wave every time, then the attack efficiency is many times higher than before." Thinking of this, Lu Jiuzhong took off the holographic glasses with a full sense of technology. Without the prompt of glasses projection, Lu Jiuzhong raised his hand and tried again, "Puchi" was like farting. This was a very rapid airflow formed on the sea surface, and the entire airflow formed a small tornado.

This air current sucked the water from the waves into the sky more than ten meters, forming a rainbow under the sunlight. However, it did not form a blast. This was a failure.

Obviously, Lu Jiuchong's proficiency is not high enough. Without the prompts of glasses and lens lines and numbers, Lu Jiuchong was unable to operate successfully.

Just as Lu Jiuzhong was about to put on his glasses and continue practicing, he suddenly raised his head and turned his eyes to the distant sea surface. A ship with the tiger sign on the sea was sailing through the waves. Feeling that something on the ship made him uncomfortable, Lu Jiuzhong frowned and couldn't help but murmured to the sea surface, "What's there on that ship?"
Chapter completed!