In a peaceful era, if Lu An chose a place to live, Lu An would definitely go to Jiangdong. This is a rich place. The dishes are sweet. Many cultural writers left behind good poems in Jiangnan. As for Shuntian Prefecture and Xi'an, the wind there can be described as the north wind. In modern and easy-to-understand words, the wind there carries sand. This is why Lu An chose to go to the southeast.

Take a ferry from Qingcheng and quickly arrived at the largest city in Southeast Asia. In the last life, Luan finally left the world. When Luan saw the prosperous neon lights of the city, towering into the clouds of metal glass-style buildings, he had an illusion, the illusion of going back in time. In the last life, prosperity turned into ruins. Now prosperity is in front of him.

Looking at the busy streets, Lu An raised his hand and tried hard to touch the air, and then Lu An sighed quietly: "It's so good to have peace."

Forty minutes later, Lu An took the subway to his destination. After walking into the building, the people inside immediately registered the data with Lu An on the computer after learning about their purpose. Then, after collecting Lu An’s deposit of 3,000 yuan, he asked Lu An to participate in the test. This is a superpower test center, and the relevant physical examinations are required.

After a series of blood draws and x-ray projection physical examination, Lu An sat on the bench and waited. After a while, the electronic screen said, "Please arrive at the No. 3 test hall within ten minutes on the twenty-five."

Luan stood up and complained, "It's really the same as the ward."

Walking into the hall, Luan saw three people wearing blue electric armor protective suits, with a tiger's avatar printed on the blue armor protective suits.

The leader said to Luan: "Start test your abilities." Luan said: "Here? Are you letting me slide?" After that, Luan slid on the ground like ice skating.

The member in the lead smiled, pointed to the machine beside him and said, "Release your abilities towards that contact surface. Then you can complete the test."

Luan nodded. The machine being tested was two squares. Luan released his ability to the square on the contact surface. With a loud bang, the two squares slid.

The researcher on the side said, "Yes, the resistance coefficient has been reduced. Please continue to cooperate with the next test so that we can give you easy ratings."

After dozens of minutes, after continuous measurement, the tester wrote a second level on Luan's list. Then he smiled and said to Luan: "It's very good. If you can develop it reasonably, your ability is very practical. Prepare it. In a week, please take the cultural course exam."

Lu An asked, "Exam? What should I review? I may have little knowledge about superpowers." The tester said, "You are still a student. It is your duty to receive knowledge education at your age. Your grades determine which school you can go to. What you can't take is Chinese, mathematics, physics and chemistry courses. After arriving in Chongming City, you still have these courses except for superpower development. If your child has superpowers, it doesn't mean he can skip classes."

Luan nodded and said, "I understand, my transfer procedures."

The tester said: "According to national laws, we can give priority to help you. Well, you are still an orphan. Don't worry about this. We will help you apply for the national orphan subsidy."

Note, although these people do not manage orphan subsidies. Ordinary people may be delayed by bureaucrats, it is absolutely very easy for these people with high authority to handle what they should do in this legal provision. The bureaucrats dare not delay these people. In other words, Luan was finally able to leave the orphanage.

Finally, the tester mentioned to Luan again: "If you don't have a place to live these days, we will arrange it for you."

Luan shook his head and said, "I have booked a hotel, thank you."

After walking out of the Superpower Test Building and recovering the deposit, Lu An picked a leaf and suddenly let go. The leaf fell on the ground like a stone. After contacting the tiles, it bounced up like a ping-pong ball. The leaves that bounced up as Lu An contacted the superpowers fell down. When he just came into contact with the ground, a white mark as big as an ant's legs appeared on the tiles.

Lu An smiled faintly and said, "This is my superpower." Lu An shook his head.

In the superpower test just now, Luan tested some values, but retained some. All tests were used to test the resistance coefficient that Luan could reduce on the contact surface of one meter and two meters. Luan could indeed reduce the resistance coefficient, but in the end, he could completely control small targets, such as a leaf or a marble, how low is it? In the test just now, Luan did not show it.

Any physical quantity can achieve theoretical perfection, but Lu An can achieve this approximate theoretical value. Lu An's ability is not to reduce resistance, but to a resistance that is approximately zero. Lu An's awakening ability seems to mock Lu An's character.

Lu An walked to the hotel, turned on the TV, turned on the book, and began to review. Lu An couldn't help but open the physics book and said silently: "Any physical quantity is missing somewhere, the phenomenon caused is the current superpower."

Let me briefly introduce what abilities this is.

Luan tested this ability before he arrived. This is an area, and the area that Luan can form now is a cube 1.3 cm long. Of course, Luan can turn this area into a thin film, wrapping the object he wants. The minimum thickness of this film is about three millimeters. The friction coefficient of the wrapped object surface contacts the surface of another object is zero,

In the open test of the test center, Luan turned the membrane into a grid and distributed it on the surface, and the result was that it showed resistance reduction. In Luan's own test, he perfectly wrapped the object.

One of the tests includes - impact. First of all, there will be no perfect plane in this world. There will be no perfect plane, and even flat planes will have concave and convexity. If a K-shaped surface contacts an arc (shaped surface, the center of K will be in contact, and the force thrust received by the two contact points will cause tearing and cracks in the middle.

Luan used a marble to land on his skin at a height of half a meter. This marble made Luan's arm hurt, and it was a pain. The skin around this point seemed to be forced to be pulled apart by the impact force and torn apart.

When his skin contacts the marble, the contact surface slides around under the impact force because the contact surface has no resistance. Lu An took off the marble and saw a red mark on his skin. The blood line cracks on the skin circled the contact point between the marble and the skin, and the collision point of the marble secreted blood beads.

Under normal circumstances, if a stick comes into contact with the skin, then there must be a line on the skin as the central axis and begins to shed the skin outward. The traces of whip whip are the same. There is a red mark in the middle of the whip mark, and the skin on both sides is turned outward. This is the reason why whip stained with water hurts people.

Half a meter is only half a meter in height, and the mass is only one glass marble. This is how it will be when the skin is sunken. When it is sunken, it should be that the surface closely fits with the marble when it is sunken. The friction force of the fitted surface completes the buffering of the impact force. Now the sunken surface and the marble surface are absolutely smooth. Slide outward under the impact force, and the phenomenon of molting occurs.

Of course, the energy is still conserved. Their skin is elastic. The impact of the marbles falling down becomes the elastic potential energy that is sunken on the skin. There is no phenomenon of the marbles penetrating their body without any obstacles. Because the marbles are not in an instant, tearing the skin.

It is not so easy to fall on a rigid object. It will smash on the glass, and not to mention smashing on the glass, the glass marble is naturally placed on the glass ashtray. Under the weight of natural gravity, after dozens of minutes, the contact point between the marble and the ashtray will continue to grow in the glass cylinder. If it is not taken down, it will spread out, and finally it will directly crush the real ashtray, like a shattered glass block by small stones.

Theoretically, as long as the time is long enough, even the smallest object has the contact force with the glass, it can eventually break the glass with one click. The same is true when it falls on Luan's skin. Although the instantaneous impulse cannot penetrate the skin, over time, under the action of gravity, it will eventually slide into Luan's skin. This is unobstructed.

It is a little more complicated to collide with rigid materials. But the destructive force is the same. Even if a leaf hits the ground, the impact can cause damage. Although it is just a white mark the size of an ant's legs. Such a subtle white mark is impossible to detect, but the crushing effect caused by this collision is undeniable. What if it was a slingshot on it?

Luan tried to hit concrete walls with steel balls. If the unresisting film is wrapped with a thickness of 0.5 mm, the marbles and the wall collide with the wall and sputter white powder. The wall is not deep. If it is a unresisting film of two mm thick, then the particles of sand are sputtered out, which is greatly improved into the wall. It is obvious that when the pillars are enough, it is easier to crush the rigid wall material into large particles and squeeze out, which is more likely to be crushed into small particles than to squeeze out.

The film layer of 0.5 mm is only allowed to splash out as the powder-sized particles when impacted, while the film a little more than two mm thick allows sand and gravel to slide out from both sides of the steel ball. If the energy is not enough, cracks will be created inside the material from the contact point as the starting point.

In short, this is not just a problem of sliding resistance reduction, but a problem of the object's head-on collision with obstacles and its breakdown ability to the obstacle. The broken object can only consume the kinetic energy of the zero-resistance object at the cost of self-milling or self-deformation.

If you pass through the fluid, there is no resistance. The squeezed air in front will flow along the film to the back. The pressure in front is balanced with the pressure behind.

What will the object protected by this film feel when it is impacted? It is borne by the entire surface and the entire front face perpendicular to the direction of the impact force. If this film wraps the person directly in front of him, a bullet will be smashed into a large number of particles and cut across both sides of the surface. The person protected by the surface will have a pause under the thrust of the entire surface. Since the entire surface is under pressure, the bullet cannot produce lethality to people. Speaking of which, the recoil force of the bullet is transmitted to the shooter through the butt stock. It is okay to have such a small area, and the surface that is larger than the butt stock will definitely be fine.

In other words, this can be a spear or a armor.
Chapter completed!