Chapter 122 Explanation 2: Everyone’s inherent time!
Faced with the twin paradox, Einstein was confident.
The calculation formula appeared on the screen, and his explanation appeared on the court.
“Since the sister is in a non-inertial reference frame and the younger sister is in an inertial reference frame, the comparison of time is meaningless.”
“Because any formula of the theory of relativity is established On the basis of the inertial reference frame.”
"So, we only need to select the result of a certain reference system, and the other reference system has no effect."
"Here, we use our sister on the earth as the reference system to explain."< br>
“Suppose my sister takes a spaceship to a certain planet A 2.5 million light years away, and then returns to the earth from there at the same speed.”
“Then the whole process will be divided into four Stage. ”
“The first stage is: the spacecraft starts from the earth, accelerates until it approaches the speed of light, and then starts running at a constant speed.”
"The second stage is: after the spacecraft is about to reach planet A, it needs to slow down until the speed is zero, and then land on planet A."
"The third stage is: the spacecraft sets off from planet A , first accelerate until it approaches the speed of light, and then start running at a constant speed. "
"The fourth stage is: after the spacecraft is about to reach the earth, it needs to slow down until the speed is zero, and then land on the earth."
“For the convenience of calculation, we regard acceleration and deceleration as uniformly changing processes.”
“And the third and fourth stages are the same as the first and second stages. , just in the opposite direction.”
"Attention, the key to this question lies in the process of [acceleration] and [deceleration]. Please listen carefully."
"According to the LQW transformation, acceleration also satisfies the transformation formula."
"Calculation shows that in the eyes of my sister, the acceleration will gradually decrease, so no matter how the spacecraft accelerates, it can never exceed the speed of light."
"Similarly, the parameter time also follows the LQW transformation."
“The time changes of the elder sister and younger sister can calculate their respective [proper times].”
"Let me explain here, the inherent time is the time I feel."
"Because the time my sister feels is different from the time my sister feels."
"Suppose T represents the sister's proper time, and t represents the sister's proper time."
"Then after LQW transformation, a relationship formula about T and t can be obtained."
"Because we. It’s based on my sister, who flies from the earth to Planet A, which is 2.5 million light-years away.”
"Then the sister's inherent time T is approximately equal to the time required for light, 2.5 million years."
"In this way, when calculated into the formula, the sister's inherent time is t=57 years."
>"In other words, it only took my sister 57 years to fly a distance of 2.5 million light-years."
"So when she returned to Earth, she found that her sister had passed away, and even the entire Human civilization has ended."
"Because 5 million years have passed and the earth has gone through a lot of changes."
After saying this, the venue suddenly took a breath of air.
Everyone was shocked by Einstein's calculation results.
What's going on?
Sister, only more than 100 years have passed, but 5 million years have passed on the earth?
This is simply a fantasy.
Doesn't that mean that the elder sister is indeed younger than the younger sister, and she is 5 million years younger!
The calculation of the inherent time is exquisite, but extremely complicated.
All feelings of dissonance are calculated through it.
Einstein looked at the surprised expressions of everyone and felt a sense of pride.
My own theory of relativity is indeed a time-honored theory. It is just a formula that countless people cannot understand.
So, he continued to explain: "I know that everyone will have questions. Even light takes 2.5 million years to travel a distance of 2.5 million light-years."
"Why did it only take my sister 57 years?" ?"
"Actually, this is a relative problem."
"Light takes 2.5 million light years, which is the time in the eyes of humans on earth."
“But the time that light itself passes may be just an instant.”
"If someone can see the universe from the perspective of light, from the moment the light is emitted, it has already reached the other end from one end of the universe."
"So, from the perspective of the sister on the earth, the sister has indeed passed by It took 2.5 million years to reach Planet A.”
“But in my sister’s opinion, it only took 57 years to fly 2.5 million light years.”
At this moment, countless people in the venue were completely confused.
They really couldn't accept such a weird conclusion.
Professor Keyes even immediately asked: "Einstein, but you just said that in the eyes of an older sister, the younger sister's time will also slow down."
Einstein smiled and said: "Yes. , but as I explained, if the elder sister never returns to the earth, then the speed of the elder sister's time has nothing to do with the younger sister. "The elder sister feels younger than the younger sister." You can also feel younger than your sister."
"The two have no influence on each other." "They only need to be responsible for their own time."
“It’s like there is an alien in the distance, flying at close to the speed of light, then his time has nothing to do with us.”
“But if he has a whim, he wants to come To the earth, maybe millions of years passed before he arrived."
"But from the perspective of aliens, it only took 30 years."
" Because they are in different reference systems, the comparison of time is meaningless.”
"You can simply understand that the elder sister and the younger sister are in two independent and different time and space!"
Boom!
This time the venue went completely crazy.
Everyone is confused by Einstein.
Only those above the level of ordinary physicists can understand.
When they saw such a horrifying result, their outlook was shattered.
It is actually based on the results of the theory of relativity. The facts are amazing.
If a person can reach infinitely close to the speed of light, doesn't it mean that after 100 million years have passed in the outside world, his own time may only have passed a few years.
What is even more terrifying is that a moment of light is the eternity of mankind.
The moment light appears, the perceived passage of time, for humans, the universe ends.
In other words, if a person really moves at 100% the speed of light, the universe will end in an instant.
Such a bizarre yet logical inference caused everyone’s brains to shut down and they didn’t know what to say.
Senior physicists frowned. They had to admit that there was no problem with the inference of the theory of relativity.
Einstein's calculations are impeccable. If the theory of relativity is correct, then the result should be like this.
Everything, in the final analysis, lies in the concept of [relative].
This word seems to have infinite magic power, making all kinds of incredible phenomena come true.
At this time, Einstein added: "In fact, for a better understanding, we can ignore the complicated operations and explain them with a space-time diagram."
As he said, he was projecting again Draw a diagram on the instrument.
“This time we analyze from the sister’s reference frame, and we can see that the result is the same, or the sister’s time is slower.”
“So the so-called twin paradox is a False proposition.”
"The result is fixed. When the spacecraft flies out and comes back, the people on it are younger than the people on the earth."
When Einstein finally finished speaking, Lorenz didn't know how to preside over the meeting. .
Because as a senior physicist, he was shocked and speechless at this moment.
The formulas on the screen, he swore, were the most outrageous formulas he had ever seen in his life.
Directly smash Newton's mechanical system to pieces.
This bizarre conclusion made him suspect that the theory of relativity was nonsense.
But his intuition told him that the theory of relativity was probably correct.
This contradictory sense of tearing made Lorenz realize for the first time that knowing too much is not a good thing.
The more you know, the smaller you feel.
It is better to imitate the young man named Chris, who has a clear stupidity on his face and looks very happy.
Yes, for Chris, the meeting had turned sour at this point.
It's like the gods of Olympus playing a physics game that mortals can't spy on.
Even if I occasionally glimpse a few words, I still cannot understand the profound connotation.
Like Chris, there were other students and non-physics majors who were completely excluded from the meeting.
In fact, if you give them some time and think about it carefully, they should be able to understand it.
But now Einstein is tearing up formulas by hand on the spot. Without a certain amount of talent, he cannot keep up with the thinking of the great master.
Only the top people can truly understand.
But there were still huge waves in their hearts, and they were shocked beyond measure.
The theory of relativity is really beyond human common sense and thinking.
This kind of theory, which can only be imagined in the mind, has a huge impact on reality.
The more outrageous the theory of relativity is, the more they feel it is wrong and there should not be such a theory in the world.
How wonderful it is to have a uniform view of time and space.
Li Qiwei smiled at this moment. No wonder the theory of relativity caused a wave of opposition when it was first published.
No wonder the Physics Nobel Committee dares not award awards.
Such a bizarre theory cannot be verified through experiments, so no one dares to say it is right easily.
Looking at Einstein's high-spirited appearance on the stage, Li Qiwei thought to himself: The photoelectric effect has been written off.
At this time, Lorenz finally calmed down and said professionally: "Do you have any other questions? You can continue to ask."
No one dared to answer
< br>(End of this chapter)