My Wife is A Sword God

In the crowd, Qin Feng spoke confidently, “Do you think that there is no friction force on stationary objects?”

“Isn’t it true?” the crowd asked in unison.

Qin Feng waved his finger, “Wrong, absolutely wrong! What you see as stillness is merely the result of the friction force canceling out other forces. In reality, this force has always been present!”

“Take the example of the wine glass on a rough surface; it’s difficult to push because of the friction coefficient, leading to a significant friction force countering your pushing force! However, as long as your pushing force exceeds this friction force, the glass can still be moved! Do you understand what I’m saying?”

The crowd suddenly had a moment of enlightenment, “So that’s how it is.”

And Yuan Zhai, with more thoughts than these people, pondered, “In other words, sometimes the reason the wheel shape I choose can’t move heavy objects forward is due to excessive friction force.”

“If that’s the case, the wheel can only choose objects with a shape similar to a circle to reduce friction force. However, this brings back the original problem – when the vehicle moves on soft plains or mountainous terrain, the wheels are prone to sinking due to the pressure.”

To build a mobile city, various terrain factors must be considered. However, even after some guidance, Yuan Zhai, while understanding the reasons for failure, fell into a loop.

The people in the workshop fell into contemplation and confusion upon hearing this.

The crowd looked at him with curiosity, and even Yuan Zhai cast a curious gaze.

Qin Feng didn’t say much but conducted a comparative experiment.

He led everyone to a tree where flowers were planted, and the ground was covered with mud.

He instructed people to find two stones of similar weight, one with a flat bottom and the other with a sharp bottom.

He placed both stones on the mud simultaneously. The flat-bottomed stone remained stable, while the sharp-bottomed stone gradually sank.

Yuan Zhai and others pondered. This phenomenon, usually taken for granted, now seemed somewhat unusual.

They had never really thought about the reasons behind things that naturally occurred in life.

Qin Feng smiled and said, “With the same weight, a smaller force area produces a greater effect.”

“Haven’t you ever thought about it?

Why do most weapons have pointed heads instead of other shapes?

Why is one side of a knife polished extremely sharp, and when cutting things, people never use the blunt side?

Why can a needle easily pierce clothing, but the palm of the hand can’t?”

Looking at the crowd’s pensive and excited expressions, Qin Feng solemnly said, “All of this boils down to the effect of force, which I call pressure.”

Then, Qin Feng explained the concept of pressure from the high school physics textbook.

After hearing Qin Feng’s explanation, the people in the workshop were initially stunned, then lowered their heads to contemplate. Soon after, they suddenly became enlightened, and there was an endless stream of praises.

“So that’s it, so that’s it!”

“In the past, I only knew the result but not the reason. Today, listening to Mr. Qin’s words, I have gained a lot!”

“I suddenly have a brilliant idea. If we forge the blunt side of a knife into a sharp shape, wouldn’t the killing power increase significantly?”

“Are you talking about a sword?”

“.”

The crowd was still immersed in the joy of learning new knowledge when Elder Yuan suddenly shouted, “Quiet!”

He looked up at Qin Feng, frowned, and said, “The reason the wheels get stuck in the mud is that they bear too much weight, and the contact area of the wheels is too small. So, to solve this problem, there are only two options: either reduce the weight or increase the contact area of the wheels.”

Is the idea very clear? Qin Feng smiled and nodded, “Considering what you said about slipping and overturning, along with my theoretical explanation, I can offer an improved direction for Elder Yuan.”

After saying that, Qin Feng picked up a branch and began sketching on the ground.

Everyone gathered around, and when Qin Feng stopped drawing, a never-before-seen wheel configuration appeared before them.

“What kind of wheel is this?” surprised voices murmured.

“How can this type of wheel move?” someone questioned.

The pattern on the ground was, indeed, a caterpillar track!

Elder Yuan stared at the caterpillar track on the ground, wide-eyed. It seemed like he had grasped something in his mind but felt that something was missing.

Listening to the questions from the people around him, Qin Feng maintained his smile without answering.

Caterpillar tracks involve quite a few mechanical concepts; it’s a bit challenging to explain.

“A mature craftsman, after understanding the principles, should learn to think for themselves,” Qin Feng quipped, giving a universal answer.

The group from the Divine Craftsman Workshop squinted their eyes in agreement.

Entering the door, the practice follows one’s own principles, and they understood that.

Even Yang He, standing aside, pretended to smile, “Well said.”

Lan Ningshaung was curious, “Did you understand what Young Master said?”

“Of course,” Yang He chuckled, “You are a martial artist after all, so your comprehension is still lacking. Ghost Dao practitioners and Cultivators of the Literary Saint Dao both cultivate the soul. This level of understanding is naturally similar.”

Lan Ningshaung was speechless, while Zheng Tiannan glanced at him skeptically.

“How did you know all this knowledge?” The elder asked, voicing the doubts of everyone present.

Qin Feng glanced at everyone, smiled, and said, “I once had a teacher who taught me a lot of knowledge.

These are just some of them.

Of course, the most beneficial thing I learned from my teacher is a principle: never be bound by ordinary rules; learn to break them. Only then can you discover a new world that you have never seen before!”

Yes, that teacher’s name is in high school physics books, published by People’s Education Press.

Elder Yuan naturally caught the implied meaning in Qin Feng’s words. He stood up, looked at the other party, and asked, “What other knowledge is there?”

This is interesting!

Qin Feng raised an eyebrow and blurted out, “Of course, there are many, many!

Why do things fall to the ground instead of flying into the sky?

The position where fish swim in the water, why is it always slightly different from what we see?

On rainy days, why do we see lightning first and then hear thunder?”

Behind these common things, what principles do they actually contain? Don’t you want to know?”

“Yes!” the crowd immediately shouted loudly.

They seemed to see the gateway to a new world slowly opening.

“But I’m sorry, I can’t tell you. After all, I promised my teacher that this knowledge cannot be easily spread.

Otherwise, it would be breaking the rules.

Just now, when I talked about the mysteries of friction and pressure, I actually went a bit beyond.

I can’t keep making mistakes.” As he spoke, Qin Feng glanced at the elder, whose brow was tightly furrowed.

The rest of the artisans were anxiously scratching their heads.

It’s like in a brothel, where a charming girl lies on the bed, the man has taken off his clothes, ready to indulge, but the girl says her monthly period has arrived.

You can only look, not touch.

This situation, who can endure it?

Huo Yuan asked, “Brother Qin, can’t you make an exception? We are willing to pay silver!”

Qin Feng looked displeased, “Is knowledge something that can be measured with material possessions?!”

“This…”

Just when everyone was at a loss, the elder, who had been silent all along, sighed, “Later, bring the material for forging the knife.

Also, bring the information about these new things you mentioned.”

“At that time, I will write it down and bring it together!” Qin Feng excitedly said.

The artisans were greatly surprised. The elder was actually making an exception, forging the same weapon twice!

They looked at Qin Feng with strange expressions, “Young Master Qin, isn’t this knowledge not supposed to be easily shared?”

Qin Feng blushed, cleared his throat, and said, “Don’t mind these insignificant details.”

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