Chapter 46
Arthur gazed at Faraday standing before him, feeling the other man’s kind and gentle demeanor, along with the familiar face.
Arthur remained silent for a while, suddenly feeling that it might be better if he had only encountered Faraday in a textbook.
Even though Arthur considered himself to be fairly adept at physics, and his memory was quite good, there was always a chance that he might have misremembered a theorem. After all, if he had, wouldn’t that be a stain on his legacy?
Faraday, seeing Arthur’s prolonged silence, assumed that his sudden arrival had drawn too much attention from the audience, startling the Scotland Yard officer who loved science.
At the Royal Society, Faraday often encountered scientists who disliked being the center of attention.
Therefore, he naturally assumed that Arthur belonged to their ranks.
Faraday bowed slightly, expressing his apologies with a hint of embarrassment. “Officer, I did not intend to interrupt your discussion with your friend.
However, I believe that the memory method you mentioned earlier seems to be quite suitable for helping students who are new to the field of electricity.
If you are uncomfortable sharing publicly, we can discuss it further after the lecture is over.”
Faraday’s words had barely finished when Eldred, sitting beside Arthur, objected.
The young man had noticed that the attention of all the ladies in the audience was focused on the three of them. With his hormones surging to their limit, Eldred abruptly stood up, addressing Faraday directly.
“Mr. Faraday, my friend is naturally shy and not very talkative. You can ask me any questions you have.”
Faraday was delighted to see Eldred volunteering and happily shook his hand. “Then, please tell me, what exactly was the deal with that right hand you mentioned earlier?”
“It’s simple. This… right hand… well… it’s… the right hand… uh…,” Eldred stammered, unable to articulate a complete sentence, let alone repeat the knowledge Arthur had shared.
Perhaps standing up too quickly had caused his blood oxygen supply to fall behind, resulting in a blank mind.
After struggling for a long time, a sudden flash of inspiration struck Eldred.
He grabbed Faraday’s right hand and brought it close to his face, studying it intently before finally speaking.
“Uh… Mr. Faraday, your wisdom line on this right hand…”
As soon as Eldred uttered these words, the entire hall erupted in waves of laughter. The air was filled with a joyful atmosphere.
The restrained ladies used their fans to cover their mouths, their eyes crinkling into smiles.
As for the gentlemen, they had no such reservations. They laughed hysterically, clutching their stomachs and unable to straighten up.
The gentleman sitting behind Arthur, a Cambridge graduate, laughed while slapping his chair back. He exclaimed in a broken voice, “No… no mistake. They… they… Oxford education is like this.”
Arthur couldn’t help but cover his face with one hand. “Eldred, you don’t know, so don’t pretend you do!”
Eldred’s face turned pale, his heart pounding with anxiety. He muttered under his breath, “Arthur, Arthur! You’re going to have to save me!”
Things had reached a point where Arthur couldn’t avoid stepping in.
He stood up and explained, “Mr. Faraday, I…”
Faraday, slightly bewildered by the comical performance Eldred had created, saw Arthur stand up. His first reaction was to hesitantly ask, “Are you going to check my fate line again?”
Before Arthur could respond, Eldred, eager to escape the awkwardness, interjected, “Mr. Faraday, there’s no need to trouble Arthur with such a trivial matter. I’ve already examined it for you. Your fate line is quite good.”
The laughter in the hall reached concert-level proportions.
Arthur, known for his good temper, finally couldn’t help but glare at Eldred. He muttered under his breath, “What’s your business here? Just shut up!”
Eldred quickly shut his mouth. He knew that if he said another word, his reputation in the Royal Society lecture hall would be ruined.
Arthur took a deep breath and quickly adjusted his mood.
He said, “Mr. Faraday, the right hand is what I use to determine the direction of electricity. Of course, in your second experiment, you used a coil, so it can also be used…”
Faraday nodded repeatedly, “Yes, the coil can be used to determine the direction using Ampère’s law, also known as the right-hand screw rule. But the right-hand rule you just mentioned seems to be different from the right-hand screw rule.”
Hearing this, Arthur’s face remained composed with the usual composure and calmness of a Scotland Yard officer, but the Red Devil beside him couldn’t help but burst into laughter.
“Arthur, what’s wrong with you? Look at your neck, you’re sweating. Don’t you know about the right-hand screw rule? It was proposed by the Frenchman Andre Ampere in 1820. If you don’t know, I can teach you. One soul, fair price, cheap.”
Although Agareus saw Arthur sweating, he clearly misjudged Arthur’s thoughts. Arthur wasn’t unaware of the right-hand screw rule. What surprised him was that Ampere had already proposed it?
Arthur pondered for a moment and cautiously said, “I was inspired by Ampere’s law, so I came up with this method of using the right and left hands for judgment.
The right-hand rule for judgment is to make the thumb perpendicular to the other four fingers, and all of them are in the same plane as the palm.
Place your right hand in a magnetic field, allowing the magnetic flux lines to pass vertically through the palm. Point your thumb in the direction of the conductor’s motion, then the direction pointed by the other four fingers is the direction of the induced current.”
Faraday immediately stretched out his fingers and gestured to himself. Soon, his furrowed brows suddenly relaxed.
He exclaimed with delight, “It really is like that!”
As soon as Faraday said this, the laughter in the audience gradually subsided. They all stretched out their right hands and gestured to each other.
Soon, the hall was filled with murmurs.
“What a brilliant summary!”
“Just like Mr. Faraday said, it’s really suitable for beginners to memorize.”
“Officer, what about the left-hand rule?”
Faraday heard the audience members beginning to ask questions on his behalf, so he simply smiled and looked at Arthur.
Arthur understood the meaning in Faraday’s eyes. He extended his left hand and demonstrated, “The left-hand rule is used similarly to the right hand, but it’s used to determine force, not current.
Gentlemen and ladies, please extend your left hands, making your thumb perpendicular to the other four fingers, allowing the magnetic flux lines to enter from the palm. Point your four fingers in the direction of the current, and then your thumb will point in the direction of the Ampère force, which is the force exerted on a current-carrying conductor in a magnetic field.
If the moving charge is positive, then the direction of your thumb also indicates the direction of the Lorentz force. If the charge is negative, then the opposite direction of your thumb indicates the direction of the Lorentz force.”
After finishing these words, Arthur breathed a sigh of relief.
He no longer cared whether he remembered correctly or not. After all, if a master scientist like Faraday discovered a mistake, he would certainly correct it. To help Eldred escape this situation, he had given it his all today.
Just as he was about to sit down, Arthur noticed that the atmosphere in the hall was not right.
The gentlemen and ladies in the audience did not, as before, take out their hands and gesture, nor did they burst into laughter. Instead, they all stared at him blankly.
Just as Arthur was completely baffled, Faraday spoke.
He apologetically asked Arthur, “Forgive my ignorance, but could I humbly ask you a question. What is the Lorentz force?”
Arthur, upon hearing these words, his pupils constricted, and he silently muttered to himself, “Damn it, this is bad.”
(End of Chapter)
Oh No! Arthur has two options now: 1. Faint 2. Heart Attack