"Come on, don't you want to know what the moment is? Break my hand with all your might...... It's like this. Pen Fun Pavilion wWw. ｂiquge。 info "Donner deliberately pushed a little outward, making it look like his wrist was being broken by the other party.

"Hmm......" Lucia nodded slightly.

She really didn't have a lot of strength, and Donner was able to maintain her balance before she could exert herself.

Just when the two were "evenly matched", Donner pointed to the elbow of his right hand with the fingers of his left hand and said, "Here, this is the fulcrum." He pointed to the place where the two men held their palms, "The point of force of resistance here...... The distance from this point of force to the fulcrum is the arm of resistance...... Because the power is generated by the muscles of the arm......"

He pointed to the approximate location of the muscle groups on his forearm, "So from here to the elbow, it's the power arm...... This size varies from person to person, but it is more or less fixed for everyone, that is, your dynamic moment remains the same. Let's try to adjust your resistance arm to try. ”

With that, Donner let go of Lucia's palm and took her forearm.

This time, Lucia won the contest with ease - in fact, it was Donner who deliberately let the water go.

"You see, because your output moment is the same, when your resistance arm is small, the drag becomes very large. Donner let go of his palm and said, "Now you understand?"

Lucia shook her head blankly: "It's even more confused." ”

Donner couldn't help but laugh.

"Am I stupid?" Lucia was a little frustrated. Whether it was at Tris School of Magic or later at the Imperial Academy of Magic, she was the most outstanding magical genius, but she knew that she couldn't compare to Donner in terms of magical talent, and now that she was in engineering, the gap was widened.

"No, no, how could it be?" Donner quickly shook his head, "It's still too complicated for me. Well, I'll take a little more time tomorrow and tell you about it in detail. ”

Lucia knew that he was comforting herself, if she had been in the past, she would have been stimulated to be more competitive, but after all these years of precipitation, coupled with the fact that she was facing Donner, this comforting words felt a little sweet in her heart.

She slightly straightened her crumpled sleeve, pointed to the machine that had aroused her curiosity, and said, "By the way, what kind of machine is this?"

"Generators. Downer came up with a new coined word, in which the root word "electricity" was coined when he invented the clockwork battery.

"What do you mean?" Lucia wondered.

"It turns mechanical power into electricity. Donner tried to explain.

"But what is 'electricity'?" Lucia wondered even more.

"Hmm...... Let me show you how. ”

With that, Donner hooked up the wire, put the bare lamp up again, and pushed the wind-up battery's gear lever directly to fifth gear.

The secret realm alloy attached to the two copper rods lit up, emitting a warm yellow glow like an incandescent lamp.

"Magic table lamp?" Lucia asked curiously.

"No......" Donner shook his head, "I didn't use any magic crystals, and I relied on the electricity generated by the generator to light this lamp." ”

"You really didn't use the magic crystal?" Lucia was surprised and leaned over to the spinning generator to take a closer look.

"Do you want me to take it apart for you to examine?" asked Donner with a smile.

"Oh no, I'm sure you're telling the truth. Lucia hurriedly waved her hand.

"It's a hassle to dismantle it, and it took me a long time to install this generator. Donner said as he walked over to the test bench and pointed to the resin-coated copper wires, "That's where electricity is transmitted to the lights. "It took a lot of effort for Donner to collect the natural resins alone.

"Electricity is also a form of magic, right? Did you learn it from the Magic Continent?" asked Lucia.

"No," Donner shook his head slowly, "there are no magic elements in this lab, and the lights are not lit by magic crystals, so electricity is not magic. ”

"Not magic?" Lucia looked at Donner blankly, "What's that electricity?"

Donner frowned slightly, it was too complicated to explain the question of what electricity was, even if he was willing to say it again, Lucia would not be able to understand it.

He had to vaguely conclude: "Electricity and magical elements are essentially the same thing, but where there are magical elements, most of them are suppressed and dissolved...... That's why you haven't seen electricity. ”

"I don't understand...... If electricity and magic are essentially the same, isn't electricity a form of magic?" asked Lucia.

Donner smiled, "You're right, if that's the case, electricity is indeed magic. ”

In fact, the second time Lucia asks this question, it goes from a simple question of right and wrong to a philosophical question about cognition.

For Donner, the concept of "electricity" was preconceived, so he would think that the radiation of the magical element should be the same thing as electromagnetic waves, so he would try to understand the magical element from the perspective of electromagnetism.

Lucia is different, in her opinion, magic is a simpler and more understandable concept, so she will start from the perspective of magic, to recognize the new concept of 'electricity'.

This difference is a bit like the Northern Cliff being called the Wall of Middle-earth in the Knights' Federation.

It's just that magic is a complex man-made thing, and "electricity and magnetism" is closer to the essence of the world than it is. If magic is compared to a house, electricity and magnetism are the materials from which it is built - the inhabitants of this world are like babies living in houses, who only know about houses and do not know what bricks and tiles are.

But Donner wasn't going to explain it to Lucia until she had accumulated enough basic knowledge - that would be too much effort and of little practical sense.

Anyway, Lucia didn't need to deal with electricity, and since she thought electricity was magic, it would be better if electricity was magic.

"By the way, since there is no electricity where there is a magic element...... So what's the point of you spending so much time on it?" Lucia would think this way, and from her point of view, the "magic" of this intelligence in the laboratory really didn't make any sense.

At this point, Donner couldn't explain it at all, so he had to pretend to be mysterious: "It's a secret ......"

"You're not going to want to be the first electric magician, are you?" said Lucia.

Donner couldn't help but laugh and said, "Wouldn't that be exciting?"

Lucia laughed along, but the laughter between the two was completely different.

At this moment, outside the Desperate Laboratory, the voice of Elimanda (or possibly Elimia) suddenly sounded: "Teacher...... Are you in the lab?"

"What's the matter?" asked Donner, aloud.

"Cynthia Vida is here, and she says she has something very important for you. (To be continued.) )