Due to the reasons of the European religious reform, Protestantism and Catholicism have long been in opposition.

Protestantism, different from Catholicism, as the core sect in England today, is highly inclusive of all social classes - this can be understood as a grand opening with great benefits, so the welfare is quite favorable.

However, from a historical perspective, Protestantism abolished the Catholic indulgences, which is worth affirming.

Therefore, guided by relatively open-minded thoughts, Arlin did not delve too deeply into whether Xu Yun is a believer or whether he has been baptized, and soon let William and his party in.

The interior space of the St. Theodore Church is very large, with about eight hundred to one thousand seats on the upper and lower floors, and the front is a high platform for preaching and the position of the choir.

After entering the church, William's family found a place on the left side relatively in the middle as their seat for this worship.

Then, after some adjustments, a seating arrangement was finally determined with seven people sitting and Lilani sitting on Mrs. William's lap.

After about half an hour, a choir walked up to the front podium, and everyone in the church stood up and sang hymns.

Due to Xu Yun's limited understanding of hymns, which is only limited to the rhythm of the song "Hallelujah" that is extremely similar to "Love My China", he could only hum like a wooden person during this process, looking somewhat out of place.

After the hymn was sung, Pastor Arlin, who had been seen before, walked up to the pulpit.

After a simple prayer, the formal sermon began.

Arlin was preaching from the Gospel of Matthew today, and there happened to be a passage that Xu Yun was quite familiar with:

"For what will it profit a man if he gains the whole world and forfeits his soul? Or what shall a man give in return for his soul?"

Xu Yun is not a believer, but this sentence inexplicably touched him for a long time, and he unconsciously remembered it.

It is somewhat similar to the saying "The Bodhi is not a tree, and the mirror is not a stand" that even non-religious people have heard a few times.

The entire sermon lasted for an hour and a half. Xu Yun listened to the whole process half-absentmindedly and half-seriously, and in the second half, he was basically observing the other people in the church.

After the sermon was over, Arlin wiped the sweat from his forehead with some effort and said:

"Hallelujah!

May the Lord bless each and every one of your families, and may your steps be beautiful. May we all share the glory one day!

Now, please rise and receive the Holy Communion!"

Upon hearing this, everyone in the room stood up.

After a while.

The solemn and heavy piano sound started, and the choir continued to sing hymns.

Pastor Arlin personally held a chubby child, followed by three or four people, and walked from the front row to the back.

The position of Xu Yun's group was in the middle of many seats, so it didn't take long for Arlin to come to them.

The rules of the Holy Communion are actually very simple:

In Arlin's hands, there is a plate with a wooden small plate on it, on which there is a small piece of bread the size of a fingernail, and next to it is a wine jug. Each person can pour a little wine into their own cup.

According to the requirements, as long as each person eats the bread and drinks the wine, it is enough.

This part was introduced by Little Newton on the way here, so Xu Yun did not resist too much when it was his turn. He took the bread and wine generously and swallowed them.

After all, this is not an initiation ceremony, but a kind of gratitude church ritual. Xu Yun would definitely not actively participate in it under normal circumstances, but he wouldn't resist too much when it comes to this kind of situation.

In general, the wine for the Holy Communion is mostly grape wine, symbolizing the blood of the Holy Son.

However, due to the interruption of current cargo shipping, there is not much leftover grape wine in Grantham. Therefore, Arlin used newly brewed apple wine as a substitute this time.

The color of apple wine is actually more like "blood" than grape wine, but the taste of fresh apple wine is far inferior to grape wine - especially when using Bramley apples, which are extremely acidic.

Therefore, as soon as it entered his mouth, Xu Yun's taste buds felt a strong sourness.

But as the wine entered his stomach, Xu Yun's hand holding the wooden cup suddenly froze, and a flash of lightning crossed his mind:

He thought of something to make his first fortune!

Yes, it's that!

After the Holy Communion, William and his family carefully packed up their belongings (mainly the holy books and leaf packages), and then left the church.

Unlike when they came, there were no accidents on the way back for Xu Yun and the others, and they only exchanged a few words with the villagers they met.

After walking and resting for more than three hours, the eight of them finally returned to the Woolsthorpe village.

Then Little Newton and Xu Yun bid farewell to William's family at the village intersection and returned to their respective homes.

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As soon as Little Newton returned to the garden house, he took out the paper left by Hooke and said:

"Fat Fish, don't say anything, listen to my solution."

Xu Yun readily agreed. After all, in Little Newton's mind, Xu Yun was just an auxiliary "tool" and the problem-solving ideas had to come from himself:

"You may speak, Mr. Newton."

When Hooke left, he had already read Hooke's problem, and describing it in words is actually quite simple:

Suppose you have a marble, let it roll around in an irregular pit, and you know the relationship between its depth and the horizontal coordinate V(r) of the pit. Then, calculate the properties of this function, that is, the calculation problem of the space occupied by the undeformed continuous medium.

"My idea is like this."

Little Newton quickly drew a schematic diagram on the paper and said:

"If it is confined to the Cartesian coordinate system, assuming the marble is a particle, the only interaction is the x at close range.

Then, the component of the force applied to each small piece inside the medium can be regarded as applied on the surface of the medium, so there should be a certain quantity of force density corresponding to a certain quantity on the surface."

Xu Yun continued to nod. The 'certain quantity' that Little Newton was referring to was actually the volume integral and surface integral.

The fact that he could start with integrals indicated that Little Newton's framework of calculus was not far from being completed, which was undoubtedly good news.

"So let's assume that £X is the displacement of the small element. According to the parallelogram multiplication property mentioned in 'The Great Numbers' published by Cardano in 1545, we should be able to derive ζF, and then further calculate using the symmetry of the quantity..."

At this point, Little Newton suddenly stopped and said no more.

It was clear.

His train of thought had come to an end here.

.....

Note:

Okay, I'm terrible at naming.....