Chapter 124 Explanation 3: Create a new definition of momentum!
Under the gaze of countless eyes with different meanings, Li Qiwei sat in the front row with his back to the people.
At this moment, his figure looked extremely tall and majestic, giving people a strong sense of security.
It seems that there is nothing in the world that he cannot solve.
On the stage before, the high-spirited Einstein talked so eloquently that people even forgot that Li Qiwei existed.
Just like the theory of relativity, Einstein could figure it out by himself, and he could easily challenge other scholars.
Li Qiwei is just a spectator, and the glory of the theory of relativity belongs to Einstein.
However, everything has changed.
Planck's problem is like a nail, firmly nailed on the seven inches of the theory of relativity, making it unable to move.
Einstein looked at Li Qiwei expectantly, waiting for a miracle to happen.
Suddenly, Li Qiwei moved.
He stood up slowly, attracting the attention of everyone in the venue, and then slowly walked onto the podium.
At this moment, the hearts of countless people are beating crazily.
What's going on?
Bruce Lee actually wants to take the stage. Isn’t this a direct admission of the contradictions of the theory of relativity?
Could it be?
“Hiss!” Countless shocking sounds of inhalation sounded in the venue.
Plank looked at his most proud disciple in front of him, feeling conflicted in his heart.
Through absolutely correct mathematical logic, he proved the loopholes in the theory of relativity regarding the conservation of momentum and energy.
But he also hopes that Li Qiwei can break the limits, transcend everything, and prove that the loophole itself is not a loophole.
He was probably the only person present who had this complex sentiment of being both opposed to and in favor of the theory of relativity.
At this time, Li Qiwei had already walked to the stage. He looked at Einstein and chuckled: "What's wrong? Can't it be solved?"
Einstein shook his head, a little frustrated. , As expected, authority is not so easy to challenge, and sighed: "Hey, it seems that we are still not prepared enough."
Li Qiwei looked at him, and suddenly felt very emotional in his heart.
In real history, the loophole in the non-conservation of momentum and energy proposed by Planck was actually discovered by Einstein himself.
After he published the paper "On the Electrodynamics of Moving Bodies", he published another paper and added a conclusion.
The title of that paper is "Is the inertia of an object related to the energy it contains?" 》.
The final conclusion of the paper is the famous mass-energy equation: [E=mc].
There are countless misunderstandings about this equation in later generations. It can be said that 99% of people do not really understand this equation.
The content of these two papers taken together is the complete special theory of relativity.
You can't blame Einstein for this. Anyone who is in such a highly stressful situation will have his brain slow down.
If you give him some time to think carefully, he should be able to explain this problem.
However, time waits for no one. Facing Planck's aggressive and powerful offensive, Einstein's moral heart collapsed.
Li Qiwei walked up to him, patted his shoulder gently, and said in his ear: "Don't be afraid, I'm here!"
A simple sentence almost made love God's eyes filled with tears, and Li Qiwei's determined eyes rekindled his hope.
Einstein simply stepped off the stage and prepared to listen carefully.
The previous high-intensity answer had consumed all his energy.
Now, leave the stage to Bruce, he thought.
So, under the spotlight of everyone, Li Qiwei stood on the high platform alone to face the big bosses!
“Just now, my teacher, Professor Planck, raised a very good question.”
"But what's the good thing?"
"The good thing is that as a top physicist, he has proved one thing to us."
"That is, if we don't Treat the thinking of relativity as inherent thinking, but always use the thinking of Newtonian mechanics."
"Even the big guys in the field of physics will make mistakes."
"That's right, Plann. Professor K’s loophole is wrong”
"The law of conservation of momentum still holds in the theory of relativity!"
Boom!
This time the atmosphere in the venue was completely detonated.
Everyone was stunned and stunned.
Some people even cursed in their hearts, Bruce, is there something wrong with your eyes? Planck had already derived it very clearly mathematically.
Momentum is not conserved in the theory of relativity!
You actually said it is conservation, are you bullying us for not understanding physics?
Even Planck looked confused, wondering if he, the student, was stupid?
Obviously it is not conserved.
Faced with everyone's incomprehension and doubts, Li Qiwei smiled softly, "I know that many people have doubts. The formula has shown that it is not conserved."
"However, we must always remember that when discussing the theory of relativity, we must use relativistic thinking." Then, Li Qiwei began to draw pictures and calculate. "Momentum, energy, mass, these concepts are all concepts under the Newtonian mechanical system."
"But in the theory of relativity, these physical quantities need to be redefined."
< br>“The purpose of redefinition is to make the law of conservation of momentum still hold after LQW transformation.”
“Therefore, we need to define momentum in this form, please look at the big screen.”
"When the speed v is close to the speed of light, the relativistic effect cannot be ignored, it is like this."
"Then put it into the LQW transformation, look, the mathematical form remains the same, momentum is conserved!"
“And it can be seen that when the speed v is much smaller than the speed of light c, the denominator will become 1.”
“At this time, the momentum returns to the definition of Newtonian mechanics [mv].”
“The theory of relativity is perfectly compatible with Newtonian mechanics.”
"Isn't it great?" Li Qiwei added in a funny tone at the end.
Wow!
Li Qiwei made countless people's eyes pop out with his showy move.
Hey guys, the definitions of momentum in Newtonian mechanics and relativity are actually different.
The key is that at low speeds, the theory of relativity perfectly covers Newtonian mechanics, and the momentum returns to its original state.
Anyone with normal logic can understand that Li Qiwei's idea is right.
Originally, the theory of relativity is a system of its own, and time and space only change under the system of relativity.
Then momentum will naturally change accordingly. Only after change will it remain conserved.
In this way, the law of conservation of momentum is correct, and so is the theory of relativity.
Li Qiwei perfectly solved this contradiction.
"Oh, my God, how long does Bruce's brain grow? This kind of genius idea may have been told to him by God himself."
"Genius, genius, genius, I really can't find it. There are no other words to describe Bruce. I feel that he is the embodiment of physics.”
“Bruce is invincible. With this extremely sharp physical thinking, no other physicist in the world can compete with him. . ”
Everyone has been completely impressed by Li Qiwei’s unconstrained imagination.
Planck stared blankly at the newly defined momentum, his mouth wide open.
Unexpectedly, Bruce solved the conflict in this way.
Everything is right. What is wrong is to use the thinking of Newtonian mechanics to substitute the theory of relativity.
He found that from beginning to end, Bruce was adhering to the theory of relativity thinking, so everything seemed reasonable.
In this theory, Planck had no doubt that the contribution of his students was definitely not low, at least no less than that of Einstein.
Roentgen, Thomson, Rutherford and other big guys were also dumbfounded.
I didn't expect the truth to be so simple.
“Hahaha, this Bruce has never disappointed anyone.”
“His thinking is different from ours. I guess he has turned himself into a beam of light. , always thinking about physical problems from a high-speed perspective."
Einstein's eyes shone brightly, "Yeah, why didn't I think of this angle?"
"Any physical law must be. After LQW transformation, it can be consistent with the theory of relativity. ”
"Oh, Bruce, I am really inferior to you. Hehe, I'm convinced."
"You only need to make a slight move to make me lose."
Facing the wonderful excitement of everyone Li Qiwei's expression was very calm.
This is originally a matter of a layer of window paper, but few people can always change their thinking.
After all, no one can always tell themselves subconsciously: You have to eat with your feet.
Plank looked at Li Qiwei with a look of relief, his eyes full of love. He had successfully overcome his own mental calamity.
So he said: "Bruce, the same is true for energy. The definition needs to be modified."
Li Qiwei smiled and nodded, "Yes, Professor Planck."
Everyone in the audience also nodded silently, thinking that it was very common. Anyway, just modify the definition to comply with the LQW transformation.
There is nothing special about energy estimation.
Bruce won this game, and he won effortlessly and easily.
With every gesture he makes, he shows off his elegance as a top physicist, making people admire him.
Li Qiwei had a panoramic view of everyone's expressions, and in a voice that only he could hear, he laughed softly:
"Haha, for the next derivation of energy, I have to bring you a little bit. A little shocked.”
(End of this chapter)