Pandaren Professor at Hogwarts

Chapter 133: Learn mathematics, physics and chemistry, and you won’t be afraid of traveling all over

"Alastor Moody? Mad Eye? Who is that?" Lan Feng had never heard of this person.

Dumbledore did not explain, because Frank had already spoken first: "Oh, he is the best Auror. Although he has retired, he is still the best. In the 11 years of darkness, he is one of the few who can stand up. Auror, also Phoenix..." Frank looked at Dumbledore, wondering whether he should name the organization.

"Order of the Phoenix, Frank, there is nothing to hide from Professor Lanfeng."

After receiving Dumbledore's reply, Frank continued: "He is also a member of the Order of the Phoenix, just like us. He has defeated many notorious dark wizards in battle, and the Death Eaters he captured can fill Azka's body." Half the cell of the class! However, during the war, Moody lost his leg and replaced it with a wooden leg; he also lost an eye and replaced it with a magic eye that can rotate 360 ​​degrees. He has a somewhat temperamental Weird, so we all call him Mad-Eye! He was the second strongest among us... and now he's third."

Lanfeng understood. This Mad-Eye was the hero who fought against Voldemort, and now he is retired at home to take care of himself.Lanfeng looked at Dumbledore again, ready to hear what was going on.

Dumbledore continued: "When something like that happened last year, I naturally couldn't do anything. I contacted Moody and asked him to use his connections in the Ministry of Magic to enable the Auror Office to launch a campaign to eradicate dark magic. The most important action was to search the family's dark magic items in order to find Horcruxes. Although nothing was found, it was obvious that this activity made Lucius alert, and he began to search for Horcruxes. Knockturn Alley sells his collection of dark magic props. He probably discovered this diary when he was rummaging through his warehouse, so he sent the diary to Hogwarts this year."

Frank rolled his eyes: "So, he forgot about this notebook for so long? How loyal." He said sarcastically.

Lan Feng smiled and patted him on the shoulder: "There is no such thing as loyalty or disloyalty, it's all driven by interests."

After understanding Lucius Malfoy's conspiracy, the next step was to solve the notebook. When Ginny was there, no one mentioned it. The so-called Tom was actually Tom Riddle, Voldemort's real name, for fear that she would be too scared.

Now that there are only three people in the office, they naturally start studying this notebook.

Lanfeng walked to the table, spread out the notebook, picked up the quill from the corner of the table, twisted it in his hand, thought for a long time, and wrote on it: "Hello."

After a while, a line of words appeared on the diary: "Who are you? What did you do to Ginny?" The reason for this question is because Ginny was controlled by the soul in the diary before and was kicked out inexplicably. Ginny's body now has the word "Hello" written inexplicably on it. The person who wrote it must not be Ginny!

Lanfeng knew he would ask this question, so he wrote down what he had already thought of: "My name is Draco Malfoy, and Ginny was knocked unconscious by me."

"Why do you want to hit her?"

"Because I hate Weasley, and I heard that she has an answer diary, which is you, but she doesn't deserve it! So I talked about following her underground and knocking her unconscious."

The diary seemed to hesitate, and it took a long time before replying: "Is your last name Malfoy?"

"Yes, my father is Lucius Malfoy!" Lanfeng continued writing without waiting for his reply, "I heard that you can answer any questions, right?"

"Yes, I will answer your questions, but you also have to tell me something." Diary seemed to have lowered his guard, and it seemed that he was not very smart.

"Then I'll write a question and give you a try first."

"You write it down."

After receiving a positive answer, Lanfeng took out a stack of exercise books from the gem. These were given to him by Lu Chenchen's father, Comrade Lu, and asked him to supervise Lu Chenchen to learn scientific knowledge well in the UK. After all, Lu Chenchen will also take part in the future law examination.

Lanfeng rummaged through it for a long time and finally found an arcane exercise book. He flipped through a page and found an additional question on it:

"Given positive integers m, n, find the smallest integer N (≥m) with the following properties: If an N-ary integer set contains a complete remainder system modulo m, then it has a non-empty subset whose element sum is n Divisible."

It was a very simple narrative, written in less than three lines, but the answer did not appear in the diary for a long time.

Lan Feng wrote on it: "Can't you? I'm so disappointed, I thought you were so amazing!"

Lanfeng's words obviously angered the diary: "The question you wrote about is not the field I am good at. Please change the question to another field!"

Other areas?If you are not good at mathematics, I will give you a complete physics problem:

"Please listen to the question! According to Bohr's theory, when an extranuclear electron in a hydrogen atom jumps from one orbit to another, it is possible

A. When photons are emitted, the kinetic energy of electrons is reduced and the potential energy of atoms is reduced.

B. When photons are emitted, the kinetic energy of electrons increases and the potential energy of atoms decreases.

C. Absorption of photons reduces the kinetic energy of electrons and increases the potential energy of atoms.

D. Absorbing photons, the kinetic energy of electrons increases and the potential energy of atoms decreases."

"??????" Several question marks appeared on the diary.

"Somewhere on the horizontal ground, two small balls A and B are thrown at the same speed v0 and different projection angles. Their ranges are the same. It is known that the time that ball A travels in the air is TA. Find the time when ball B is in the air. The time of air travel is TB. The acceleration due to gravity is g, regardless of air resistance."

"???????" Several question marks appeared on the diary.

“从地球上看太阳时，对太阳直径的张角θ=53°.取地球表面上纬度为1°的长度l=110km，地球表面处的重力加速度g=10ms2，地球公转的周期T=365天.试仅用以上数据计算地球和太阳密度之比.假设太阳和地球都是质量均匀分布的球体。”

"Enough!!!" A big word appeared on the notebook, followed by several exclamation marks to represent his anger. "Are you teasing me? Are these things wizards need to learn? Do you know who I am? Do you know who your father works for?"

He asked several questions in a row, as if the soul inside wanted to rush out and beat Lan Feng... No, the soul inside thought that the person who wrote these questions was his old subordinate-Lucius Malfoy's son. , he wanted to come out and beat Draco Malfoy.