Chapter 254: People are in Cambridge, waving their sleeves, attracting a dark cloud (1)
[Overturning the foundation of the physics building].
I heard these words spoken by Xu Yun.
Laofa's face was stunned at first.
Immediately he thought of something and quickly glanced at the bustling melon-eating party around him.
Then he pulled Xu Yun aside and lowered his voice and said to him:
"Classmate Luo Feng, what you said about 'overturning the foundation of the physics building' is an exaggerated rhetorical technique, or is it?"
"Will it completely overthrow our existing physical system?"
Finished.
He stared at Xu Yun, waiting for the young man's reply.
If someone had said this to him half a day ago, or two hours ago, he would not have believed even a single punctuation mark.
Are you kidding me?
Modern physics began to gradually establish its foundation in the 15th century, and it has been more than 400 years so far.
Thanks to the efforts of pioneers such as Kepler, Mavericks, Franklin, and Ampere, physics today is considered a very mature subject.
Leading physicists such as Faraday recently planned to submit a joint letter to the Royal Society, suggesting that the Royal Society separate physics from chemistry and establish it as an independent discipline.
under such circumstances.
Some people brazenly claim that they can overthrow the building of physics. I am afraid that everyone will find it absurd and ridiculous.
But now
Whether it’s the speed of light measured in the first experiment or the photovoltaic phenomenon that’s still bubbling around, they all prove one thing:
Xu Yun is probably telling the truth.
After all, there is a fat fish behind him who is endorsing him.
Therefore, as the current leader in the physics community, Laofa has to consider some extreme situations:
If, what if, what if Xu Yun really makes a super, super, huge news that completely denies the existing physics system?
so what should I do now?
no doubt.
If what Xu Yun said is true, then this news must not spread!
That is to say, experiments must still be done, but they must not be conducted in the current environment where people are gathering together.
Otherwise, if it is spread by those who are ignorant and love to exaggerate, tomorrow may be the end of the world.
The worst-case scenario will also be announced at a physics conference.
Looking at Lao Fa, who looked like he was facing a formidable enemy, Xu Yun could roughly understand his mood.
After all, this is how he was known as a fisherman in his previous life. Having sex and coding all night long was said to be a rich nightlife. In the end, the group members pretended that nothing happened.
Think of this.
Xu Yun pondered for a while, composed a sentence, and said:
"Don't worry, Mr. Faraday, the main purpose of this experiment is to support the declining particle theory."
"Although it may have hundreds of millions of impacts on the classical physics system, it will not cause the entire system to completely collapse, let alone let the efforts of the sages be in vain."
Although Xu Yun paused and decided to release something more:
"In his suicide note, the Fat Fish Ancestor called the world that people can see with the naked eye the macroscopic world."
"The concepts we summarize from the macro world only need to ensure that there are no problems in the macro field."
"Do you think so, Mr. Faraday?"
Lao Fa nodded in understanding.
Although he couldn't find the problem in Xu Yun's words, he always seemed to feel that something was wrong?
Maybe I'm overthinking it
Then Xu Yun took Lao Fa and others forward for a while and came to the equipment that Lao Tang tinkered with.
This equipment covers an area about the size of a piano and is divided into two parts. It is much more sophisticated than the previous two experiments.
The first part is an electric spark generator.
There are two large copper balls on the generator as capacitors, which are connected to two small copper balls very close to each other through copper rods.
Wires stretch out from two small balls and wrap around both ends of a large induction coil.
Then it was connected to a Medinger battery to connect the device as a whole. (I'll see if I can post a picture in this chapter)
The second part is a receiver, not far from the generator.
It consists of two open rectangular copper rings, with a small copper ball inlaid at the interface of the copper rings.
As for the generator and receiver, a metal plate is placed.
The generator, receiver and metal plate form a triangle, and the line connecting the generator and receiver is the base of the triangle.
Laofa walked up to the device as if he was still present, and his eyes quickly locked on the part where the induction coil was wrapped:
The number of turns of this induction coil is very large. Visually, it is about as thick as the waist of the ear, and it occupies a quite large area.
Judging from Lao Fa’s long-term experience in dealing with electromagnetism.
If the wire specifications are normal, this induction coil should be able to emit a voltage of more than 10,000 volts.
Ten thousand volts is not a small number.
What is this for?
You can't perform electric shock play, right?
Just when Lao Fa was deep in thought.
William Whewell also came up. Now that he was not under pressure, he became very interested in Xu Yun's experiments.
He first circled the receiver, and then said softly:
"Huh? Mr. Faraday, did you forget to connect the wires to the equipment on the right?"
Lao Fa pondered for a moment and shook his head slightly:
"It's probably not that I forgot to connect it, but that it doesn't need wires in the first place."
William Whewell was stunned when he heard this, blinked, and asked:
"Why, do you understand the principle of this equipment?"
Laofa adjusted his glasses and said hesitantly without nodding or shaking his head:
"It's just some speculation."
Then he pointed to the metal plate not far away and said:
"Dean Whewell, you are less involved in front-line research, so you may not know much about some situations."
"The imaging plates we commonly use in optical experiments are generally composite plates made of marble, mainly to display images clearly."
"As for metal plates made of this kind of material, they are more common in reflection experiments, such as sound waves or light, etc."
"Luo Feng requested that the experiment be conducted under dark conditions, so it must be related to light."
"So I thought this metal plate should be used to reflect light."
As he spoke, he glanced at the equipment again, touched his chin, and finally settled on the tone:
"So if nothing else, this equipment should be powered by the coil device and emit light first, and then the light is reflected by the metal plate and presents a certain image on the receiver."
Seeing Lao Fa talking eloquently, Xu Yun on the side couldn't help but shook his head gently.
Old Fa, Old Fa, you guessed wrong this time.
This experiment has nothing to do with optical imaging.
Of course.
This can’t be blamed on Lao Fa.
After all, the phenomenon of this experiment was so bizarre that it far exceeded people's understanding at the time.
People can easily repeat this experiment countless times, but they are still troubled by its principle.
It was not until 20 years after its discovery that Einstein completed the theoretical analysis.
In the current year of 1850.
If someone could predict the results of the experiment just by looking at the equipment, Xu Yun would have eaten the ax in Wheat's dormitory on the spot!
However, just as he was about to speak, a voice suddenly froze his expression:
"Professor Faraday, is there a possibility that the imaging effect will not appear on the receiver, but a potential difference will appear?"
"?????"
Xu Yun turned his head in confusion and found that the person who made the noise was less than three meters away from him.
wheat!
Where did he come from?
Oh, I remembered it.
This young Scottish man originally attended the theater as a student representative, but was captured by Xu Yun during the photovoltaic phenomenon experiment and became the tool man responsible for holding a flashlight.
So it's natural.
After the photovoltaic phenomenon experiment ended, he innocently followed the professors to the venue for the third round of experiments.
Of course.
What surprised Xu Yun was not that Xiaomai would appear here, nor that he had the courage to put forward opposing views to Laofa, but that
What he said.
At this moment.
Xu Yun really wants to say something about MMP, you are here to tear me down, right?
Why could someone predict specific experimental phenomena in 1850 just by looking at a few experimental equipment?
Where is the Scythe of Judgment?
I want to report someone for cheating!
But soon.
After thinking about the connection between wheat and this experiment, Xu Yun gradually began to calm down.
Instead.
It was an indescribable emotion.
This is considered
Destined resonance?
After all, in the original history.
The result of this experiment was the last wish that Xiaomai had longed for all his life but never got to see until his death. At the same time, it also rectified the name of Xiaomai after his death.
Maybe somewhere down the line, the compatibility between some people and things is innately different from ordinary people.
And the other side.
Wheat’s words also attracted Lao Fa’s attention.
Seeing Lao Fa looking at Xiaomai, William Whewell took the initiative to introduce:
"Mr. Faraday, this is Maxwell's classmate, and he is also the second fee-reduced student approved by Trinity College after Sir Isaac Newton."
"Oh? Is that the Scottish genius?"
Lao Fa looked at the wheat with great interest and asked curiously:
"Classmate Maxwell, why do you think that there will be no image on the receiver, but a potential difference?"
Wheat is a social terror, not to mention the pressure in front of a boss like Lao Fa. He looks very reserved:
"Mr. Faraday, I can't explain the specific reason. I just subconsciously thought of the possibility of potential difference."
Seeing that Xiaomai was about to cry, Xu Yun couldn't help but cough slightly and came to the rescue:
"Mr. Faraday, our time is limited, don't you think so?"
When Lao Fa heard this, he was stunned for a moment, and then he realized that he and William Swan were a little rude.
After all, Prince Albert is still around.
Therefore, he quickly took half a step back and said to Xu Yun:
"Sorry, sorry, please start, classmate Luo Feng."
Xu Yun thanked him and nodded in several directions around him like a conductor who had just taken the stage.
Walked to the device and turned on the power.
Zi
With the switch closed.
An invisible current passes through the induction coil in the device and begins to charge the copper ball capacitor.
1 volt
100 volts
300 volts
1000 volts
When the voltage rises to 20,000 volts.
stop
The air between the two balls was instantly penetrated.
A large amount of electric charges began to flow between the two large copper balls, and a high-frequency oscillation circuit was formed.
A few more seconds passed.
Snapped
A bunch of blue electric flowers exploded between two copper balls.
The tiny beam of electricity kept twisting in the air, looking like Sister Cannon's OP.
In anime, I can't believe that some middle school boys will say something like "The electric light dancing on your fingertips is my unchanging faith in this life".
But this process is fleeting.
Because each vibration is accompanied by a small amount of energy loss, the voltage across the capacitor quickly drops below the breakdown value.
See this situation.
The faces of Lao Fa and others looked very calm, with almost no major fluctuations.
This is a common phenomenon in laboratories. The scientific community in 1850 was no stranger to high-frequency oscillation circuits, also known as LC circuits.
But the next second.
The facial expressions of Lao Fa and others suddenly changed dramatically, even a little distorted!
Stokes even played a high note comparable to C5, which sounded a little distorted:
"Oh my God, what is this?"
No one had the intention to laugh at Stokes' duck voice. At this time, everyone's eyes were focused on the receiver not far away:
I only see this moment.
Every time the generator emits a blue electric spark, there will be a flash of electric light between the copper rings on the receiver!
Pulled by some unknown force, there is no receiver connected to the wire
There is electricity!
Lao Fa even walked to the receiver as if no one else was around, looked at the flickering sparks at close range, and murmured:
"Jesus"
The whole process lasted for several minutes. Finally, Xu Yun estimated that the effect was almost complete, so he stepped forward and turned off the switch.
The scene was silent, and it looked like a moment in a short movie.
After a while.
Lao Fa walked back to the crowd, looked at Xiaomai with complicated eyes, and said:
"Classmate Maxwell, your guess is correct, there is a potential difference on the receiver."
Xiaomai scratched his hair naively and laughed non-stop.
Then Lao Fa looked at Xu Yun again, the meaning of his eyes unclear.
Is this the first time today that he has been surprised by this Oriental?
True.
Although these experiments are all attributed to Feiyu, Xu Yun was able to reproduce them skillfully, so there is no need to say more about the relevant theoretical level.
He had heard from Whewell that Xu Yun had used Maverick's autographed letter in exchange for an admission spot. Although he didn't say it, he still felt that this person was a bit unscrupulous.
But now it seems
I was very, very wrong.
Then Lao Fa took a deep breath, brought his mind back to reality, and asked Xu Yun:
"Classmate Luo Feng, what is this phenomenon called?"
Not asking why, it shows that Lao Fa has figured out a lot of things in this short period of time.
Xu Yun was silent for a moment and said a name:
"Photoelectric Effect."
That's right.
The experiment Xu Yun chose in the third round was the famous photoelectric effect!
Throughout the history of human science.
There are only two phenomena that can truly be called core evidence refuting the wave theory:
Compton effect and photoelectric effect.
Among them, the Compton effect requires X-ray assistance, and the technology tree of the current copy has not reached that level.
Therefore, Xu Yun's options were actually determined at the very beginning of the incident.
The photoelectric effect is a phenomenon discovered by Hertz in 1887 and finally explained by Einstein.
Actually.
The photoelectric effect is very simple in interpretation.
It is to illuminate the metal plate with light, and the electrons inside certain substances will escape after absorbing energy to form an electric current.
That is photoelectricity.
Photoelectric effect experiments in later schools generally used a zinc plate as the main body of the demonstration, with an electroscope that could open and close connected to the back.
Then the teacher illuminates the metal plate with light, and the electroscope will gradually open, which means that the light generates electricity.
The more responsible teacher will also take out a rod that has been rubbed with fur and has a negative charge. After touching the electroscope, the electroscope will close, which means that the metal is positively charged.
But in fact.
The significance of the photoelectric effect goes far beyond its apparent simplicity.
Otherwise, Xu Yun would not have bothered to talk about the photoelectric effect after finishing the photovoltaic effect:
Although everyone in later generations knows that the photovoltaic effect and the photoelectric effect are two different things, one is the surface and the other is the interior.
But in 1850, an era when electrons were not discovered, the two phenomena were actually somewhat similar.
Again.
Xu Yun's goal is to shake the classical physics building by hundreds of millions.
The current situation is shocking enough, but it is far from shocking the building of physics.
His eyes returned to reality.
"Photoelectric Effect"
Lao Fa repeated the word with a thoughtful expression:
"Photoelectricity, electrochemical light is such a good name."
But after thinking about it, Lao Fa suddenly frowned and realized a certain problem:
"Wait a minute, classmate Luo Feng, isn't that right?"
"Although the photoelectric effect is an amazing phenomenon, strictly speaking, it seems to be just an extension of the photovoltaic effect in the air."
"It can neither refute the wave theory of light nor have much impact on the existing physical system. So what you said before"
After hearing what Lao Fa said, the other professors on the side also came to their senses.
yes.
Having heard Xu Yun speak so seriously before, they thought it would involve the reshaping of three views, and that the existing scientific framework would collapse if it could not be maintained.
Some of the professors who are quite clever at thinking are even ready to be martyred.
result
That's it?
Looking at Lao Fa who looked confused, Xu Yun didn't explain much.
Instead, he took something from Wheat's hand, put it in his palm, and stretched it out in front of Lao Fa:
"Mr. Faraday, don't worry, why don't you take a look at this thing first?"
Note:
My schedule these days is very messy, I wake up at 6pm and 11pm, etc., so the update time will be a little messy.
In addition, I heard that some blocked words have been solved, including one of our old tricks. Try it here.
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