At the stall.

With the appearance of the prompt board, Xu Yun suddenly found that everything around him had stopped abruptly. For example, at a stall about seven or eight meters away from him, a vendor who was originally arguing fiercely with a customer, about to engage in a full-scale fight, suddenly froze, looking like two lifelike inflatable dolls.

Similarly, not far away, the boss of a fruit stall was sitting with his legs crossed, tossing an apple in his hand. The apple suddenly stayed in mid-air. Newton probably saw it and...wait, Newton was also here.

Xu Yun turned around and found that Little Newton was grinning with a triumphant expression, even the bits of bean sprouts stuck on his back teeth were clearly visible.

Motionless, as if frozen.

Glasgow, no, the entire year of 1665...suddenly came to a halt without any warning.

The whole world, except for Xu Yun's life, was constantly -1s.

Then, a halo quietly appeared under his feet, slowly enveloping his entire body.

Xu Yun was quite familiar with this halo - obviously, as the prompt said, his novice mission had been completed, and he was about to return to reality.

And in the last moment before disappearing, the thought that floated through Xu Yun's mind was...

Drinking buddies!

So, after all the effort I put into solving a bunch of academic problems for you, it's not even worth a few Genies, right?

You're something else, Brother Niu!

Then came a dizziness similar to when he arrived, and when Xu Yun regained his senses, he found himself back in that closed space.

At this moment, three doors were still floating in front of him, but the leftmost door representing the year 1665 appeared dark gray, and the original '100/100' on it had become '0/100'.

Xu Yun had seen this scene many times in the past ten years - it meant that if he wanted to open that door again, he would need to meet the requirement of having all the knowledge points back to 100.

As for whether this knowledge point was only related to degrees or knowledge reserves, that would require further research.

However, besides the entire door turning dark, Xu Yun also noticed that there was a dark golden box placed on the ground in front of the closed door.

After thinking for a few seconds, Xu Yun decisively walked forward and picked up the box.

Although this space seemed suspicious, if it really wanted to harm him, it could have turned him into a corpse or Ah Wei ten years ago.

As soon as he held the box, it suddenly transformed into another fluorescent screen: [After inspection, the novice mission 'Wall-Facer' has been completed. Would you like to proceed with the evaluation?]

FBI Warning: Due to the multi-node mode of the current selected instance '1665', the simulation result of this deduction is only for scoring purposes. The time inside the instance has been locked, and the next time the 'Wall-Facer' enters, the screen will automatically continue from the previous time. Would you like to continue?

Below were two options: [Yes] [Of course!]

Xu Yun: "......"

So, this thing does have a problem, right?

But on the other hand, although the dialogue box was fancy, it revealed quite a bit of information: according to the dialogue box content, the halo would conduct a simulation similar to a sandbox based on Xu Yun's previous actions, in order to make some kind of scoring judgment.

The time inside Little Newton's door was locked, which meant that the next time Xu Yun entered, he would still see Little Newton's grinning face.

Then he sighed with some melancholy and clicked on the left option, 'Yes'.

Soon, the dialogue box began to change.

[Evaluation system activating...permission verification passed...timeline deduction begins!]

[Theoretical deduction]:

'Wall-Facer' met the main character Newton in the instance '1665' and disclosed the following related theories within the rules:

1. Dispersion of light.

2. Accumulation of refractive angles (Pascal's triangle).

3. Taylor series (partial).

4. Infinitesimal series approximation.

5. Saint-Venant's principle (partial).

6. Theory of stress equilibrium (concept).

[Summary of character lines]:

1. Isaac Newton.

2. William Escu and his family.

3. Robert Hooke.

4. Isaac Barrow.

5. Alain de Lille.

6. Tiffany Boley.

7. Several passersby.

['Dream Butterfly' deduction in progress...]

[Result generated]...

[Academic achievements]: Influenced by the 'Wall-Facer' permission, the current available quantity of academic weighted summaries is [4], weighted items are arranged in ascending order of time:

Due to the intervention of the 'Wall-Facer', Isaac Newton proposed the equation for the dispersion of light at the end of December 1665, officially proposed the concept of infinitesimal series in March 1666, and put forward Newton's binomial theorem.

He also merged the binomial (m/n-dimensional) with circular logarithms, and proposed the discrete algebraic equation model of (1-X2) = (1-X2)1/2 · (1-X2)1/2 = X + X2 + X3 + ... + Xn (1-η2) = η + η2 + η3 + ... + ηn.

[Mathematical formula weighting: 9]In April 1666, Isaac Newton derived the third-order 'Han Li Expansion', which for the first time solidified his own calculus model. Combined with Kepler's third law, he successfully derived the law of universal gravitation. The "Mathematical Principles of Natural Philosophy", originally scheduled to be published in 1687, was released in 1679.

【Core Theory Weighting: 17】

In terms of elasticity, Newton proposed in 1674 the theory that 'after a solid material is subjected to force, there is a linear relationship between the stress and strain in the material'. The expression is F=k·x, historically known as Newton's law of mechanics. Later generations further derived the triple expression of the generalized Newton's law of mechanics, and the content involved in the national college entrance examination was increased to 31 points.

【Mechanics Change Weighting: 13】

Influenced by the 'Wall-Facer's' proposition of the product of refraction angles, Newton was more firm in the particle nature of light than in history. The product derivation equation perfectly explained most of the optical problems at that time, and he had an absolute advantage in the debate with Huygens.

【Particle Theory School Historical Position Coefficient Weighting: 6】

Academic Weighting: 9+17+13+6=45

【Modern Influence】: No permission to open yet.

【Associated Character Changes】(In ascending order): Ruben Holland:

The husband of Tiffany Boli, the former chief tailor of the 'Bole Clothing Manor' in Grantham. After tasting tomato sauce for the first time in December 1665, he foresaw the demand for tomatoes with great insight. In early 1666, he mortgaged his property and established a tomato plantation, which later became the largest fruit supplier in Lincolnshire and its surroundings.

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Yarlin Dilate: The pastor of the St. Tito Dia Church in the small town of Grantham, the seventh officer of the Lincolnshire diocese. Because promoting tomato sauce brought huge benefits to the diocese, he was promoted to the acting general manager of the Nottingham diocese in July 1666. He proposed to increase civil rights laws in the drafting of the "Bill of Rights" and was later honored as Saint Dilate.

Lilani Escu:

The youngest daughter of William Escu. After the 'Wall-Facer' mysteriously disappeared, her personality gradually became solitary. She dropped out of school at the age of 15 to work, and at the age of 19, she went to Leiden University in the Netherlands in an attempt to find the 'Wall-Facer'. Unfortunately, she died in a shipwreck.