Han Li's unfolding was like a godsend to Little Newton. While solving the simplification of m/n in non-integer cases, it also opened a new door for him.

Therefore, for the next two days, Little Newton hardly left the house, constantly optimizing the relevant formulas.

Indeed.

This amount of time was not enough for Little Newton to define infinitesimal quantities systematically - after all, this concept would not be formally proposed in writing until 1704. However, apart from that, Little Newton also optimized other superficial forms:

For example, using a^1/2 instead of √a, using a-1 instead of 1/a, and so on.

This change in symbols was already familiar to people in later generations, but in this era where exponents were still unfamiliar, this change in superficial forms was an extremely bold operation.

Once Little Newton generalized the general analysis of finite-term equations to infinite expressions, it would not be far from formally deriving the law of universal gravitation.

Meanwhile, during these few days, Xu Yun became a deliveryman - Little Newton was completely absorbed in his work and even once mistook ink for boiling water if Xu Yun hadn't been there to watch him.

But on the other hand, Xu Yun's efforts were not in vain:

Although there were no prompts for completing tasks, Little Newton gradually began to recognize Xu Yun's abilities. He would occasionally chat with Xu Yun and discuss some mathematical and physical problems.

It should be noted that Little Newton's full name was Isaac. Petty. Grudge. Newton.

During his free time, Xu Yun mainly wandered outside, pondering his next steps. Although not having a cellphone made him feel a bit uncomfortable, Xu Yun had experienced such days before - after all, he had earned his Ph.D. in biology through hard work and was used to spending time in libraries.

Moreover, Xu Yun found a good fishing spot near Little Newton's house by the small river. With his good hands-on skills, he made a fishing rod and would come out to fish a few times when he was bored. Time passed slowly like this.

It is worth mentioning that during these two days, Xu Yun caught an old boot, a decaying squirrel corpse, shot down a sparrow, and caught a snake, but he didn't catch any fish.

As a fishing enthusiast, you know what that means.

And so, two days passed in the blink of an eye.

On the third day, Xu Yun woke up on time and walked out of the bedroom as usual.

As soon as he opened the door, he saw Little Newton sitting at the round table, stylishly fixing his hair in front of the mirror.

Xu Yun blinked at the sight.

"Mr. Newton, what are you doing...?" (After being corrected by readers, it is indeed appropriate to address Little Newton as Mr. Newton. Newton is his surname, and he shares the same name as his father. My English appellations are indeed my weak point, but I won't change William... or2...)

Little Newton picked up a hairpin from the table and fixed his wig in front of the mirror. Then he raised his eyelids and glanced at Xu Yun.

"Today is Sunday, did you forget Uncle William's invitation?"

Xu Yun was first stunned, then suddenly slapped his forehead.

"Oh, I remember now. We're going to church, right?"

Little Newton nodded and put on a serious expression.

"You should also tidy up. Worship should be done in a neat and respectful manner. Revering God is the beginning of wisdom, and knowing the Most Holy is intelligence."

Xu Yun muttered silently, "Then you should take a bath too." But on the surface, he obediently followed suit.

After all, faith was a fatal weakness for Little Newton and the core of his spiritual sustenance. There was no need to argue about the realm of idealism.

Modern mirrors would not be invented until 1835. At this time, mirrors were mainly made by coating tin foil and mercury on the back of glass, and they were just as clear to look into.

Three days had passed (including the day Xu Yun crossed over), and Xu Yun's complexion had visibly turned pale yellow. He didn't know if it was because of his physical body or his soul - the latter was fine, but if it was the former, Xu Yun would have to consider gaining weight when he returned to reality.

He then briefly combed his hair with a comb and followed Little Newton, carrying the Holy Bible, out of the house.

Woolsthorpe was just a very ordinary small village, so if they wanted to attend church, they had to walk seven miles to Grantham.

In the 21st century, Grantham had already become a city, but at this time, it was just a small town with over 3,000 people. However, this small town would become a feng shui treasure in a sense in the future:

Apart from Little Newton, Mrs. Thatcher also came from here.

In 1665, Grantham had only one church, located in the southwest of the town. The church was called St. Tidwoldia and would be replaced by another church, St. Wulfram's, in 1866. The latter is still a famous tourist attraction.

Seven miles was roughly over 11 kilometers. In later times, most people would choose the subway or bus, and those with better conditions would drive or take a taxi.

However, the William family and Little Newton were extremely poor at this time and couldn't afford the price of a carriage. So after the group gathered at the village entrance, they could only take the No. 11 bus.

"Mr. Fat Fish, catch it."

After the meeting, William Escu threw something wrapped in leaves to Xu Yun and explained, "This is your lunch and dinner - the gathering starts at 1 p.m. and ends at 3:30 p.m. It will take us about seven hours, so we can only have dinner on the way.

There's bread and water in the leaves. After eating, you can throw away the leaves, but you have to bring back the water pouch."

Xu Yun nodded and touched the shape of the leaf package with his hand.

Hmm, four pieces of bread and a hard water pouch. William was indeed a generous person.

Then the group of eight officially set off:

William carried Lilani on his back, Mrs. William held Alula and Andrea's hands, and Little Newton continued to walk with Lisa.

Xu Yun looked around in confusion, feeling that something was not right:

How did the world change, but he was still a single dog...The English winter was never known for its heat, but due to a lack of proper nutrition, the health of the William family members was not the best. Therefore, after walking for over an hour, visible sweat could be seen on the foreheads of William and the others.

When the group reached a large tree, Mrs. William let out a weary sigh and pointed to the shade of the tree, saying:

"Dear, let's rest there for a bit."

William glanced at the sky and estimated the time:

"We still have a few hours before the worship begins. Alright, let's rest for a while."

Find the original at "pawread dot com".

With that, the group settled down.

"Gulp, gulp..."

William took a big gulp of water under the tree. Just as he was about to speak, a carriage slowly appeared on the fork in the road not far away.

It was a four-wheeled carriage pulled by two glossy bay horses. The carriage was wrapped in luxurious high-quality fabric, the windows were covered by a curtain of light blue crepe, and the corners were carved with many intricate patterns.

Clearly, the person in the carriage was either rich or noble.

Alula, the most timid of them all, couldn't help but shrink her neck and moved closer to William in fear.

The two bay horses slowly walked down the road, their breaths visible as they passed by the group.

However, after only a few steps, the carriage suddenly stopped with a whistle.

............

Note:

Let's play two games.

1. A giveaway question, guess who is in the carriage. If you guess correctly, there will be an extra update on the day of the release.

2. You can guess what the protagonist will think of to make money. If you guess correctly, there will be five updates. Actually, there have been hints before......