"Brother Wang, I heard you earned favor and did something commendable in front of the master, and suddenly moved to the East Garden?"

Xu Yun nodded towards him and hummed a response.

Zhang San, being childlike by nature, hadn't seen what Xu Yun had done over the past two days.

So it wasn't surprising.

The "commendable act" he mentioned was likely gossip picked up from other servants.

After all, just days ago, Xu Yun had been a little thief fished out of the water, and then became a lowly servant, a complete ordinary unlucky soul.

Yet within a week.

He transformed into Old Su's esteemed guest, and those servants would normally refer to him as "Mr. Wang" now.

Aside from young ones like Zhang San, most servants must be inwardly bitter, making bitter remarks.

Then Xu Yun smiled and said to Zhang San:

"It was just good luck. Regardless of being a guest or a servant, we're all working for the master, aren't we?"

"No, no, no, it's not the same."

Upon hearing Xu Yun's words, Zhang San shook his head seriously and counted on his fingers:

"Not talking about the Old Chief Steward or Sister Yue Lian, regular servants' monthly pay is only four to six coins, and that's close to the limit.

But the guest stipends are different.

I heard that guests start at at least ten coins, some even get twenty or thirty.

A guest's monthly work equals our five months!"

Looking at this boy who talked about monthly pay since their first meeting, Xu Yun laughingly ruffled his hair, teasing:

"Since that's the case, when the opportunity arises, I'll teach you a few tricks, so you can become a guest too, how about it?"

Xu Yun felt quite destined with Zhang San, and their personalities matched well.

If there's a chance, teaching him some means to "change fate" wouldn't be bad.

Unexpectedly, Zhang San sneaked a glance at Xu Yun's lower half, quickly shook his head:

"No need, no need, being a servant is good for me, oh right, hurry to have breakfast, the master seems to be looking for you....."

As he spoke, Zhang San's expression grew peculiar:

"Seems like something you wanted has been bought, something that can poke and shoot….."

Xu Yun wasn't aware of Zhang San's expression, focusing completely on his words:

"Wow, they found Red Sea Urchin in one night? That's too fast!"

Originally, Xu Yun thought Red Sea Urchin was rarely found inland and might only be found near Deng Prefecture.

Including travel time, it should take at least three days.

How should I put it...

Old Su, being once a Prime Minister, was indeed resourceful.

Even after retiring for three years, he still had quite sharp methods.

He must have used some extraordinary connections to locate the Red Sea Urchin that Xu Yun needed so quickly.

Morning meals in the East Wing were purchased by specific people early, without sharing with the servants.

Thus, after padding his stomach, Xu Yun headed to the courtyard where he crafted the electric generator yesterday.

At this moment.

The generator and electrolytic cell Xu Yun made yesterday were placed in a corner, and a simple high-temperature furnace he built was bubbling with melting silver—the melting point of iron is 1536 degrees, about six hundred degrees higher than silver, no need to worry about the iron pot melting accidentally.

Old Su stood next to the generator, seemingly studying something.

Perhaps too engrossed, he didn't notice Xu Yun entering the courtyard.

Seeing this, Xu Yun gestured silence to Zhang San, then approached Old Su alone and spoke:

"Master, sorry for keeping you waiting, are you...?"

Upon hearing, Old Su raised his head and nodded slightly at seeing Xu Yun:

"Oh, Xiaowang is here, I am researching the generator you created."

Seeing Old Su's leisurely expression, Xu Yun knew Wang Yue's condition was likely stable, so he proactively followed up:

"Master, have you discovered anything?"

"Can't quite say discovered, but gained a little insight."

Old Su gestured with his chin towards the generator, saying:

"I observed this object for quite some time and noticed several details, let me tell you, see if I'm correct."

Xu Yun promptly made a listening posture.

Old Su pointed at the generator's stator and said:

"Firstly, this circuit connects head and tail into a loop.

I once tried moving the coal block, and found the generator cannot operate.

Thus I deduced.

For this item to work, it must first be a connected closed loop."

He paused, ignoring Xu Yun's expression, and continued:

"Secondly, the direction question.

Look here, the two magnetic poles oppose each other.

If as you said, everything in the world can be divided into particles.

Then the particles between the poles must move laterally by attraction.

But the direction of the internal rotating object is very strange:

While it rotates, different positions contact the magnetic pole 'particles' every moment, like rubbing...

Combining earlier when you had the donkey pull and pump, I made a second uncertain judgment...

Which is your mentioned 'electric energy', actually the power generated by donkey's grinding, and born through internal rotating object's 'friction'..."

In the courtyard.

Looking at Old Su, speaking eloquently.

Xu Yun appeared outwardly calm, yet couldn't help the storm inside.

Although Old Su's explanation had many inadequacies, in future physics class it would probably be punished to stand in the back row.

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