Hearing that Li Hanying, the sister of the school bully, was so "humble", Liuxiang showed bitterness on her face, "No, no......"

Li Hanying shook her head and smiled, "In fact, the vast majority of phenomena in our lives can be explained by classical physics, clearly and clearly, at this point, quantum mechanics cannot be done, in fact, according to the academic achievements that have now been made public, quantum mechanics may not even be able to justify itself, let alone anything else." ”

"Huh?" Liuxiang was obviously greatly shocked, "But, when I watched it on the Internet a few years ago, I didn't say that I had broken through absolute zero, and then I said something to prove what it was called......" Liuxiang racked her brains and thought for a long time, and finally slapped her leg suddenly, "Oh yes, the existence of dark energy!" And then it seems that gravitational waves were also said a long time ago, and there are not many words on the Internet that prove the correctness of quantum mechanics? ”

Li Hanying looked at Liuxiang with a little bitterness, and then said more seriously, "You can know these terms, as an academic worker, I am relatively happy, but unfortunately......

These things, there is no point.

First of all, relativistic quantum mechanics, the two are even directly contradictory in some places.

Of course, what you just said may indeed serve as a bridge between the two to a certain extent, but let's not consider this kind of detail for now, and let's just equate the two.

First of all, the term absolute zero is itself a defining unit......"

As soon as Li Hanying opened her mouth, Li Lingfeng next to her opened his mouth with a dissatisfied face, "Oh, sister, I said you ......"

Li Hanying, who was interrupted out of thin air, was naturally unhappy, and Liuxiang was also sensible, seeing this situation, she hurriedly said, "Oh, I want to hear it, can you manage it?" ”

Li Lingfeng was instantly deflated, and he didn't dare to open half a sentence anymore, his sister was like a child who had been praised by the teacher, full of joy, eyebrows and smiles, and after looking at Liuxiang up and down, he continued to start popularizing science......

"Mankind has never proved that there is such a critical temperature in our plane, when it is reached, the internal energy of matter can be reduced to zero; The value of absolute zero defined earlier is the theoretical temperature required for the volume of matter to naturally drop to 0 when it remains in a gaseous condition.

However, human beings have so far never found a substance that can remain in a gaseous state without changing the external pressure and approaching minus 273 degrees Celsius alone, in other words, the so-called absolute temperature would only exist in the pen of mathematicians, which is only the limit of a function.

Therefore, the so-called 'absolute zero' of the mimicry caused by the collision of hadrons some time ago, even if it can be maintained, has no reference value;

Then there is the so-called dark energy, the meaning of this concept is to explain the contradiction that the redshift of celestial bodies observed by human beings has a partial deviation from the data calculated by theory, and the paper that came out some time ago only confirmed that the existence of this contradictory phenomenon is not because of observation technology problems, where is the actual observation of the countervailing effect of dark energy on the gravitational attraction of celestial bodies?

Not even the resulting phenomena have been observed, let alone the phenomena themselves.

Finally, there are gravitational waves......

The emergence of the term gravitational wave originated from Mr. Einstein's conjecture, in which he described gravity as a manifestation of 'space-time distortion' in his relativistic model, that is, he believed that neither the gravitational distortion of space-time nor the gravitational force produced by the distortion of space-time were equivalent;

How do you explain that...... Well, you can think of it this way, now I throw a basketball in a quilt of cotton, and the quilt will sink in, right? We now think of this deformation of the sag as a space-time warp, and what happens if we gently put a marble in on top of this distortion? It is natural to fall to the bottom and touch the basketball along the trajectory of the quilt sinking.

According to Mr. Newton's theory of gravitation, marbles fall because they are attracted by the gravitational attraction of a mass substance, of course, I am not saying that the basketball itself is just an inferential model, so you should consider the basketball rather than the earth as the source of gravity, then you don't need to consider the problem of gravity decomposing into the power in the oblique downward direction and the pressure in the direction of the vertical quilt, that is, the direction, the basketball;

According to Einstein's theory, there is no such thing as gravity in this world, and marbles will fall because and only because marbles are not at the lowest point of the quilt at the beginning, and the lower the deformation in this distorted space-time system, the more stable its state is, and you can understand that the closer to the basketball, the greater the deformation, so the lower the probability of further deformation, and the lower the deformation above the higher the deformation, the greater the possibility of continued deformation.

So if we say that I give a large horizontal initial velocity when I throw the marbles, and assuming that the fabric of the quilt itself and its smooth resistance are 0, what is the trajectory of the marbles?

It's like watching those acrobats on TV spin in circles in a big iron cage on a motorcycle, and this marble will keep spinning on that initial plane, right?

On the basis of this theory, Einstein proposed his gravitational wave conjecture.

What are gravitational waves?

It's still the quilt that was pressed down by the basketball, and now the basketball is moving.

Intuitively, you push it hard in circles.

In the case of immobility, theoretically the lower limit of the quilt should be a standard cone, and the apex is the contact point between the basketball and the quilt.

What happens when the ball starts moving?

After pushing it forward a little further and stabilizing it, it will still be a standard cone if the quilt is large enough, but the apex of the cone will change with the position of the basketball.

Stabilization is so, but in the process?

I'll just say the point where the marble is, at the beginning, it's in a position that is neither high nor low, and when the basketball starts to move in a direction away from it, what happens to the marble?

The farther away from the vertex must be the higher the position, so in this dynamic process, the marble must move upward, otherwise it is impossible for it to run from a relatively low point to a relatively high point, right?

By extension, not only the point where the marble is located, but also all the points on the surface of the quilt will change in height due to the movement of the basketball.

If the basketball runs in the left direction, the point that starts to the left will be pulled down because the deformation of the point in the space it is in is getting larger and larger.

And this deformation amplitude is only related to the absolute distance from the basketball.

Because it is a standard cone, as long as the vertex is located and the size of the vertex angle is given, the position of any point on the entire cone surface is fixed, a simple geometric problem.

Therefore, as long as the movement of basketball is regular, then the deformation of any point in this space is regular.

This is consistent with the definition of 'wave', where the movement of the basketball drives all the points of the space-time it affects to move periodically.

Moreover, this cycle of sports does not necessarily go in the same direction as basketball.

Basketball moves horizontally, but the cyclical direction of movement of marbles is up and down.

This operating logic, the gravitational model of classical mechanics, cannot be explained.

If the trajectory of the sun around the center of the galaxy is perpendicular to the ecliptic plane, that is to say, the direction of the sun's motion is perpendicular to the direction of our earth's movement, then under the classical mechanical system, when the sun moves upward, our earth should be 'pulled' by the sun to move up synchronously or move upward at a slightly slower speed;

There is no reason to say that the Earth oscillates periodically on the ecliptic plane, sometimes close to the Sun and sometimes far from the Sun, right?

Not on Earth, and not on other celestial bodies.

This is the theory of classical mechanics.

What about the gravitational wave conjecture?

Yes.

You push the basketball horizontally, and the marbles that are 'attracted' by the basketball oscillate in a cyclical direction up and down.

So back to our topic......

Gravitational wave phenomenon, can you prove Mr. Einstein's gravitational model? Furthermore, can you prove his theory of relativity?

Min, huh? You think, can? ”

Liuxiang is studying accounting, where do you understand this kind of thing, I heard Li Hanying talk about it for a long time just now, and I was already dizzy when I heard it, but I was suddenly asked at this moment, of course I was confused, "Huh?" This...... This...... Should, should...... But, okay? ”

Li Hanying immediately asked, "Why can?" ”

Liuxiang was even more confused, and was a little flustered, "Because, because...... That makes sense......"

"Let's talk about the most basic question, standing on a high platform and throwing things down, 10 pounds of things must fall faster than 1 pound of things, does this make sense?"

"This ...... Where does it make sense? Liuxiang suddenly became confident this time, "The two iron balls obviously landed at the same time." ”

Li Hanying continued, "Then I will pluck a chicken feather casually now, and then use iron to beat an identical iron feather out according to the shape of this chicken feather, the iron feather is heavier than the chicken feather, throw it down together, which one is faster?" ”

"This ......"

Li Hanying was very satisfied, "You can't insist that the two landed at the same time, right?" ”

Liuxiang began to harden her mouth, "Is that because of air friction?" ”

Li Hanying was even more satisfied, "That's right!

Aristotle's theory does make sense, of course, iron of the same size will fall faster than cotton, but why do we now say that he is wrong?

Because of friction, Aristotle didn't know that there was friction, and he didn't know what aerodynamics was, but people now do.

Turning to the problem of gravitational waves, the same is true.

Why do marbles oscillate up and down?

Gravitational wave theory makes sense;

But other theories can make sense, huh?

The easiest! ”

Li Hanying suddenly pointed at Li Lingfeng, "That marble was brought over by my unscrupulous brother who has never been willing to listen to his sister honestly, in fact, he did it in advance, sealed a strong magnet inside the marble, and there is also an electromagnetic coil under the quilt, I am pushing a basketball, and he took the opportunity to turn on the motor switch to control the movement of the marble!"

Does that make sense? ”

"This ......" looked at Liuxiang's look from puzzled to stunned, obviously it took a lot of time to finally understand the set of "hands and feet" that Li Hanying said.

Li Hanying was obviously very satisfied with Liuxiang's performance, "From a logical point of view, B can be derived from A, and B is known to be true, can we use this as a basis to say that A is also true?" ”

Liuxiang doesn't understand again.

Li Hanying glanced at his "unscrupulous" brother arrogantly, and then continued to say to Liuxiang, "'All metals are solid at room temperature and pressure, and iron is metal' can be deduced that iron is solid at room temperature, and this is indeed the case, so can you say that the prerequisite is valid?" If yes, how is the thermometer made?

I'm sure everyone should have seen this kind of true/false question when they read it, right? ”

Liuxiang was completely stunned, although Li Lingfeng on the side looked at his sister with a complaining face, but he was helpless against her.

Li Hanying glanced at Li Lingfeng as if showing off, and then said, "Actually, from ancient times to the present, no physical theory, strictly speaking, can be justified.

Karl Pop once put forward a 'falsifiability' criterion, he said that any scientific proposition should be refutable, irrefutable and not scientific, although this statement is not necessarily true, different people have different understandings, but if it is only about physics, this is true.

Although I have no interest in the history of physics, this thing is compulsory, and I have to learn it, so let's put it this way, all the theories of physics, in a nutshell, are ......

Why does the A phenomenon occur?

Because B.

Why does the B phenomenon occur?

Because C.

And C is because of theory D, and D is because of theory E......

The long logical chain, but in fact, it may be beyond the scope of 'axiom' by C, and the chain is getting longer and longer, and it is basically a hypothesis at the end; In order to support the whole doctrine, you have to create new theories to support the correctness of the previous conjectures or hypotheses.

But in reality, the theory on this whole chain may be wrong.

We now say that atoms are made up of nuclei and electrons......

But no microscope can see the structure of the nucleus, and of course it is impossible to actually capture electrons.

What is the audacity to say that nuclei and electrons must exist?

Couldn't this be the brain supplement of the previous scientists?

In fact, classical physics is quite good, and although it is not self-justifying in the strict sense of the word, it can at least explain all the phenomena that need to be understood by humans in practical applications.

My teacher admired Mr. Newton very much, and he said that Newton was undoubtedly one of the greatest physicists in the history of mankind, and that even the phrase "physicist" was replaced by "man" might be the same.

Why?

Because the industrial system constructed from his theory is more productive than any other theory known to mankind.

On the other hand, in quantum mechanics, the phenomenon of gravitational waves was discovered a hundred years ago, 100 years ago, did this set of theories have any significant impact on industrial production?

No.

In the 200 years since the birth of quantum mechanics, has it had any significant impact on human civilization?

No.

Let me say that the contribution of something like a quantum computer to humanity is really not as obvious as that of nuclear magnetic resonance and X-rays.

So little sister......" Li Hanying glanced at Liuxiang with a smile, "You just said that this thing I learned is so good, really, it's a false praise." ”