A day at Hogwarts

Charles's favorable reception in Divination makes things difficult for him in Potions.

Because he said it was normal for predictions to have errors, and then Snape remembered that he had "predicted" that his home would explode, but he didn't say the specific time.

This incident became a thorn in Snape's heart, and he often stood next to Charles during class to see if he could make a more accurate prediction.

Neville was also in a difficult situation.

Because someone in Hogsmeade was selling Snape Mandrake dolls, one day during dinner a doll ran to the front of the professor's desk, and was chopped into pieces by Shen Feng Wuying.

In the alchemy class, everyone learned new knowledge.

Today everyone put on fire dragon skin aprons and gloves. These two items exuded a strange potion smell.

"Remember this smell." Professor Delacour said to the students. "If the potion prepared today emits this smell, it means you have succeeded."

In this class, you will learn a basic potion formula. The formula is relatively complex, and the weighing must be accurate, and the spell must be cast several times during the process.

After everyone prepared the potion, they put a small piece of lead in it and soaked it. The class time was limited, and only the thin layer of lead on the outside changed.

Then the students lit a small fire-breathing stove, cut the lead block in half and heated it in the crucible.

The unreacted lead inside the lead melts, and the outer layer that has reacted with the potion remains unchanged due to the increase in melting point, leaving a thin layer of lead skin.

Professor Delacour checked the students' works and found that Charles was thinking very carefully about the problem.

"Thinking about making money?" Professor Delacour recently heard that this kid is very good at making money and even bought a castle to start a company.

Charles used tweezers to take out the unmelted lead and observed it carefully, and replied thoughtfully: "It's not just about making money, it's just an immature idea. I'm afraid others have already tried it."

Professor Delacour did not ask further questions, fearing to interrupt his train of thought, and reminded him to pour the lead water in the crucible into the mold and turn off the heat before thinking again.

The lower grade students basically conduct experiments with lead. There will be casting content in the future. Now they start practicing by recycling lead.

After class, Charles still looked like he was thinking attentively.

He was thinking about controllable nuclear fusion.

Controllable nuclear fusion can only be achieved when two atomic nuclei with the same electrical properties come into contact to overcome electrostatic repulsion. To achieve this condition, a high-temperature environment of hundreds of millions of degrees must be created to turn the fusion material into plasma. At the same time, these temperatures must be extremely high. The plasma is kept long enough to prevent them from cooling down or escaping and dissipating. Simply put, the reactants are "ignited" and put into the "pot".

"Ignition" is relatively easy, and lasers and ultra-high-frequency microwaves with sufficient power can do it, but the key "pot" that can preserve the plasma is not easy to get. The most researched one at present is magnetic confinement fusion.

Magnetic confinement fusion uses a strong magnetic field as a "pot", which requires superconductors. Current low-temperature superconductors require a large amount of energy to cool. So, can superconductivity at room temperature be achieved through alchemy?

The International Statute of Secrecy was 56 years before Georg von Kleist invented the Leyden jar for storing static electricity, 63 years before Franklin's kite experiment, and 63 years before Andre-Marie Ampere proposed the ampere. The law is 137 years earlier, and 138 years earlier than Georg Ohm proposed Ohm's law. The ancient alchemy naturally did not include resistance in the scope of research.

Charles was wondering whether he should work hard in this area in the future. What if he succeeded?

Throughout the ages, a lot of money has been invested in research. If you happen to have a good business, your profits should be able to support your research.

The problem is that my basic knowledge is too weak, not only in alchemy, but also in electricity. I need to learn these from scratch. Maybe I will have to go to university in the future and choose a major related to superconductivity.

He kept thinking until he met Malfoy halfway.

Malfoy spoke to Harry with a regretful look: "Oh, I heard that our respected Mr. Potter is about to die. Did he really die because he was frightened by the dementors like on the train? "

Harry said calmly: "I am sure that I did not die because my little toe hit the table leg and I was singing with a soprano before I died."

Malfoy's face suddenly turned red and white. He kicked something with his little toe for no reason and could not find out the reason. The initial judgment was that someone had used a curse, but he could not find out who did it.

He looked around. Ron, Neville, Dean, Neville and others had already taken out their wands and were waiting to use them. There were only two helpers here, so they could only move in temporarily.

At this time, Professor McGonagall came over and saw that the group was about to fight. He immediately went over and said sternly: "Gentlemen, what are you going to do?"

Harry immediately replied: "Professor McGonagall, Malfoy asked me if I could buy the pupa of the Grimace Hawkmoth in Diagon Alley,"

He heard Charles complain that he was always suspected by professors of wanting to learn Animagus, which proved to be dangerous, so he blamed Malfoy.

Professor McGonagall frowned and asked Malfoy, "Is that so?"

Malfoy immediately denied it, but once he spoke, everyone laughed.

There was a crisp bird song in his mouth. He was stunned for a moment and anxiously wanted to say something, but there was another bird song.

Professor McGonagall was well-informed. She turned around and saw Charles' retreating back. He didn't deduct points for not doing anything wrong. He sighed and asked Malfoy to go to the school hospital.

On the way to the Transfiguration classroom, Dean asked Professor McGonagall: "Professor, what spell did Malfoy fall into just now?"

Professor McGonagall said: "That is a spell commonly used in dramas, which allows people to imitate the singing of birds. Dumbledore used to use it to magic the cry of the phoenix in performances before."

She didn't say that the German wizard who was good at music magic had the best research on this kind of magic. Charles was familiar with German wizards, so naturally this guy was the most likely to do this kind of thing.

The students couldn't stop laughing at the thought of the ruby-like sound Dumbledore made when he spoke.

After the Transfiguration class, Professor McGonagall just wanted to ask Charles to stay and talk about not casting spells on classmates in the corridor.

But Charles slipped away as soon as get out of class started, running faster than Hermione.

Once you have a goal, you have to work hard, but a tall building must start with a feasibility study.

The feasibility study of the engineering project mainly includes three aspects: process technology, market demand and financial and economic conditions. The market demand is self-evident, and the economic situation will not fundamentally change in a short time. What needs to be investigated at present is the process and technology issues. .

Charles' network of contacts can play a huge role at this time. He has friends in magic schools such as Beauxbatons, Durmstrang, Ilvermorny, Kodosdoriz, the Magic Institute and Wagadu. You can write to them and ask them if anyone abroad is doing research in this area of ​​alchemy.

At the same time, preliminary research can also be conducted to measure whether the resistance of metal changes after alchemy changes certain properties to judge whether the research is valuable.

The material is easy to find. The resistivity of lead is relatively large. If there are changes, it is easy to measure. The fishermen at the island villa often use lead wire to weight the fishhook. You can ask Grindelwald where to buy it and buy some. return.

It's just that there is no resistance meter in Hogwarts, so Charles can only do the measurement experiment in Hogsmeade.

There is also a house rented by the Centaur Liaison Office in Hogsmeade. There is just enough space to store the supplies delivered to the Centaurs and the goods they exchange.