(The principles of science and technology are pure nonsense, if only I could figure it out...... ）

Metal balls floating in the air are not a pattern, but the latest achievement of technology.

"God!" George saw an example of the ineffectiveness of the earth's gravitational pull on matter, and he glared at Yan Jing and said, "Is this the mutual cancellation of gravitational waves?"

Xu Limin said: "The superstring cannot be seen or touched, but it can be observed through its derivative effects, and the gravitational waves formed at a specific frequency are one of the ways we observe the superstring." ”

Xu Limin said: "Through the superstring theorem, we know that the superstring is the smallest unit in the universe at present, and it is the smallest unit that makes up all matter. So as far as the earth is concerned, such a huge mass sphere is also composed of the smallest unit in the universe, and in the massive sphere that constitutes the earth, there will also be some superstrings of specific frequencies that form the mass sphere, and at the same time the gravitational force corresponding to the mass sphere, which is the explanation of gravity in Einstein's theory of relativity. ”

"What about the metal balls on the stage now? The balls are hollow, and there are superstrings of a specific frequency that we have collected through experimental means, and in the metal balls, they will be combined into gravitational waves, and by collecting superstrings of a specific frequency, the balls will also have gravitational waves generated by themselves corresponding to the same mass as it, and this gravitational wave can cancel each other out with the gravitational waves of the earth, and the balls are like floating in the air in water with buoyant power. ”

Xu Limin's explanation made the reporters sound very round, but the experts in physics immediately understood what Xu Limin was talking about.

Before the superstring theorem was established, the formula of gravitation was the best way to explain gravity, and the gravitational force was proportional to the product of the masses of two objects.

After the superstring came out, Xu's team added an indefinite parameter to the gravitational formula, which is the vector of the superstring related to the specific frequency of gravity.

Note that it is a vector, that is, it has a direction.

With this correction, the gravitational equation is not only related to the mass of the object but also to the superstring.

That is, the object reaches the equilibrium of gravity at a certain distance from the ground, suspended in the air.

"So, the metal ball will ...... like this" Xu Limin said and pressed the metal ball with his palm, the metal ball seemed to float on the water, after being pressed down, as soon as Xu Limin let go, it quickly rebounded upward, then fluctuated up and down in the air, and finally stayed in its original position.

"This is what the gravitational waves brought by the superstring do on the object. ”

Xu Limin played with the metal ball as if he was doing magic.

Xu Limin may not have thought at this time, he just pressed the metal ball down, and then the metal ball rebounded, this model is the model of the future enhanced gravitational slingshot, the enhanced gravitational slingshot will help human aircraft explore the deeper universe.

"What if we just apply a horizontal force to a small metal ball?"

Xu Limin gently fiddled with the metal ball, which moved forward in balance in the air, and slowly stopped.

This series of experiments opened the eyes of the experts in the audience, and the truth of physics was most perfectly interpreted in the metal balls. Human physics has also reached unprecedented heights because of this metal ball.

Some European media questioned the arrangement of the podium, because of the light and position, they had no way to determine whether the metal balls had ropes on their bodies, or whether the metal balls were originally magnetic balls, and the bottom of the stage was originally an electromagnetic board, and the magnetic levitation effect made the balls levitate in the air.

Continuing their tradition of impoliteness, the BBC reporter unceremoniously interrupted Xu Limin's speech and exclaimed, "Can we check if there is something wrong with your metal balls?"

The sound was very loud and harsh, and the staff at the scene of Pangu Technology wanted to invite this impolite reporter out.

Xu Limin gave the reporter a chance, he didn't care about the reporter's interruption, and continued to explain.

But the BBC reporter seems to think that Lao Tzu is the best in the world, and if you don't answer my question, I will not forgive.

He continued to interrupt loudly and said, "Professor Xu, please answer this question, we have reason to suspect that there is something wrong with your metal ball, can you give me the metal ball and we will check it." ”

This time, Xu Limin was not polite, he said: "Please ask the security personnel on site to invite the person who violated the discipline of the press conference out." ”

Security personnel quickly entered, and two men escorted the BBC reporter out.

The BBC reporter was still shouting at the stand: "Your unwillingness to answer this question proves that your results are problematic, and your metal balls are problematic!"

"Let go of me! Let go of me! You are interfering with the freedom of the press! Please let me go!"

The protests were ineffective, and the BBC reporter was stripped out like dead pigs.

The scene finally fell silent.

Xu Limin sneered and said: "It's not that I'm unwilling to answer reporters' questions, but I'm unwilling to answer questions from impolite people, and the qualities of being a journalist should not be arrogant but humble and respectful." ”

After finishing speaking, Xu Limin quickly answered the question of the BBC reporter just now, and he threw it hard, and the metal ball was thrown into the audience.

This move startled everyone, and something miraculous happened.

The metal ball did not fall to the ground, but bounced in the air for a while before continuing to maintain its balance and levitate in the air.

Coincidentally, the metal ball landed right in front of George.

George picked up the metal ball with his hand and studied it carefully, if it was in a position that was balanced with the ground, George could not feel the gravity of the metal ball.

On Earth, gravity is inherently a manifestation of gravity.

George pressed the metal ball down with his hand, and he could feel the force of the ball going upwards tomorrow, similar to the buoyancy of pressing down on a suspended block of wood in the water.

George lifted the metal ball upwards again, and was able to feel the downward force of the ball, which was similar to gravity.

George was able to confirm that the ball was made of stainless steel!

The facts are in front of you, and this is not a deceptive trick, but a real reality!

Xu Limin said: "This metal ball is worth 50 million soft girl coins, and now I will give it to someone who is destined." The gravitational wave in the metal sphere is balanced for a short time, but as the superstring combination changes, it decays and eventually decays to 0. I'll give you this ball, and you can take it back to your lab and use the law of conservation of momentum to determine the mass of the metal ball. ”

The scholars in the audience stared at the metal ball in front of George, and didn't know what to say for a while?

Xu Limin laughed: "The metal ball is just the beginning, and there are big guys." ”