Hogwarts: I graduated before the system came

After saying that, he pulled his girlfriend away.

He took a few steps and made a phone call gesture to Douglas.

Chapter 299 Electricity and Magic Power

Douglas led the students into a large, prepared lecture hall.

The students, who were originally from wizarding backgrounds, were seeing such a brightly lit classroom for the first time. Some of them looked at the LED lights above their heads with curiosity. When they were not paying attention, they stepped on empty air while going down the stairs. The man was so scared that he quickly grabbed to the side and screamed:

"The steps here are just like those at Hogwarts, they disappear suddenly..."

At this moment, a shrill voice suddenly sounded in the classroom.

Douglas frowned, clapped his hands twice into the microphone and said:

"Hey, hey, puff, hey... If you just look down at the road, you'll see it's just an ordinary staircase.

Hurry up and find a seat. Students who know the place will point out where to sit to those who don't. Percy and Penelope, you two should sit in the front."

Percy and Penelope looked at each other and smiled bitterly.

Perhaps the other students hadn't noticed yet. Ever since they entered the classroom, they'd noticed that the closer they got to the podium, the more their magic power was suppressed.

As a wizard, he instinctively wanted to shrink back and find his own safe place, but he was discovered by the sharp-eyed Douglas.

The initial plan was to take all the little wizards to visit the school's various campuses, library, activity and entertainment venues, external laboratories, and cafeteria.

But when he led the little wizards past a coffee shop, he suddenly saw the coffee shop sign begin to flash.

Only then did he remember something he had always overlooked: the magic power in the bodies of underage wizards was not stable, which caused magic power to overflow around them at all times.

If there were only a few young wizards, it wouldn't have much of an impact on the surroundings. But when a group of young wizards gathered together, it was like a vibrant magical element gathering together, and they would always cause trouble, such as interfering with surrounding electrical equipment.

This discovery forced him to change his plan temporarily. He directly applied for a tiered classroom from the school and simply decorated it.

Douglas's decision brought relief to the school's principals and the Ministry of Magic employees responsible for communications.

As the students stayed in the classroom longer, the few senior students finally noticed something unusual.

They didn't panic too much, but first glanced at the classroom door behind them and found Sirius Black leaning against the door frame leisurely with an ice cream in his hand.

Seeing some students looking at him, Sirius raised the corner of his mouth and signaled them with his eyes to look at the podium.

Douglas, at the podium, picked up the microphone again:

"Students, please be quiet. Find your seats and sit down. Don't talk."

"Very good, you must always remember that you now represent the wizarding world, and the number one school in the wizarding world, Hogwarts School of Witchcraft and Wizardry.

Although there are no audiences, do you know that thing can record everything you say and do?"

Douglas pointed to the corner of the classroom ceiling, where a camera was facing them.

The others didn't understand what it was, but the Muggle-born student had already figured it out and whispered, "That's a surveillance camera. It can record everything we do now."

As Douglas spoke, he turned on the projector at hand. The students could clearly see themselves being projected onto a white cloth at the front of the classroom.

Due to the limitations of the times, even though the University of London used the most advanced surveillance equipment in the world, it could only store one minute of footage digitally. If they wanted to store more footage, they still had to record it on cassette tapes.

However, when Douglas showed the little wizards what he had said a minute ago, most of them were stunned.

Douglas looked around and asked:

"Since you entered this classroom, what have you all discovered?"

"The classroom is brighter than the ones at Hogwarts."

"These chairs are fixed, and the tables are fixed."

"The professor didn't use the amplification spell just now. I know it's called a sound effect in the Muggle world."

"We can't use magic now."

"We can't use magic outside of school."

Before the two could continue their discussion, Douglas suddenly shouted:

"Miss Elaine of Ravenclaw, you may stand up and speak."

When the sixth-grade girl heard Douglas call her name, she quickly stood up and said:

"Professor, I've noticed that the magic within us seems to be suppressed. It feels like it's obscure and can't be mobilized. But judging by Mr. Black's expression, I think this must be the professor's arrangement, right?"

Douglas nodded and continued to ask:

"Yes, this is what I arranged. You don't have to worry about it. But I want to ask, why did I do this?"

Elaine hesitated and said:

"Is that why magic interferes with Muggle electrical appliances? But we're not actively using magic."

Douglas nodded, but did not comment. He looked around and continued to ask:

"Does anyone have anything to add? Uh-huh, Miss Granger, you answer."

Hermione immediately stood up and said:

"Professor, what Elaine said is correct. This phenomenon is just like household appliances that cannot be used in Hogwarts.

Even though we don't actively use magic, we have a magnetic field around us... I mean the magic energy field, which interacts with the electric magnetic field."

Douglas nodded and said:

"You both made very good points. The two influence each other. In fact, the technological research of wizards on ordinary people is not as superficial as you think.

Many wizards will modify ordinary people's electrical appliances and convert electrical energy into magical energy. This is not just about replacing the power supply, but also requires a deep understanding of the operating principles of the appliances.

Even so, the direction of these wizards is essentially problematic. Has no one thought about using the properties of electrical energy and magical energy to make corresponding products?

In fact, it's not just magic energy that can affect electrical energy. If there's enough electrical energy, it can also affect magic energy. Does anyone have any ideas?"

George and Fred both raised their hands.

Douglas glanced at him and said, "Fred, you say."

George immediately pushed Fred down and said:

"I'm Fred, and I think the two of them could make a mutual detection..."

"Tool...I am Fred, the professor told me to say."

Percy didn't even raise his head to watch his two younger brothers fighting in the back row, and continued to talk quietly with Penelope. This opportunity was too rare. If it were in Hogwarts, everyone would be busy in class and would not have the leisure time for this.

Fred finished speaking, and George added. Don't forget, I can tell who's who among you.

Fred straightened his clothes. He couldn't blame the two of them for competing for credit. They showed up this time with a secret mission. As long as they performed well, they could get the recipe for making one or two magic props in return.

“Professor, I think we can use the properties of electrical energy to create a device that can detect whether there are traces of magic nearby.

For example, an Auror goes out into the wild to pursue an enemy, but the enemy suddenly uses magic to hide. Since magic can't detect it, can electricity detect it? As long as the electricity shows an abnormality, it means there is definitely magic nearby."

"It can even be used to detect magical traps... Make one and sell it to the Ministry of Magic, making a killing."

.c

Chapter 300 The Muggle World and the Wizarding World

Douglas looked at the two of them with admiration, and then said:

"That's a very good idea. If it were at Hogwarts, I would definitely give some extra points.

Here I would like to give you a small suggestion based on the paper "Electricity and Magic Energy", which is at least one foot long.

Of course, this is not part of the assignment, so whether to write it or not is entirely voluntary."

The students in the audience lowered their heads and rolled their eyes. They didn't believe Professor Holmes's words about volunteering meant it was truly voluntary. They decided to give it a try without writing.

"Besides electricity and magic, who else noticed anything?"

Justin stood up and said:

"Professor, that monitoring device is similar to the memory charm that Professor Flitwick mentioned. However, the memory charm has a flaw. It can only be seen by others if the person involved sees it."

Douglas nodded without saying anything, but looked at other students. After all, lower grade students had limited knowledge and could not say much.

But at this time, George and Fred also lowered their heads deeply. It was not that they had no ideas, but that they had too many ideas at this time.

First of all, this thing is useless for most wizards. Dark wizards will definitely choose sparsely populated places to commit crimes, and it is impossible to cover all places with surveillance.

Secondly, if this thing is really developed, the first place to use it will definitely be Hogwarts, and the Marauder's Map is something only a few people know about.

Even though there are so many portraits in the castle monitoring many places in the castle, the portraits basically only obey the Hogwarts headmaster.

If surveillance cameras were installed, haha, it would be really easy for Mr. Filch. He would just sit in front of the cameras and know who broke the school rules. There would be no point in running away.

If the school was more ruthless and set this up around the Forbidden Forest as well, we would be really finished and they would be caught both of them for sure.

Anyway, once this thing is created, it will do more harm than good to them. At this time, the two of them are already thinking about how to counter the surveillance.

The current situation is that we naturally think more deeply about what we can think of, but we can’t think of what we can’t think of even if we scratch our heads.

Douglas looked around, guessed what some students were thinking, and sneered...

"Is this Professor Holmes Professor Snape in disguise?"

"This smile is so familiar."

Some people below began to talk in low voices.

Douglas suddenly changed the subject:

"If you don't have any ideas, then let's continue with today's extracurricular course, the history of the development of the Muggle world. Everyone, please look at the big screen."

When Douglas heard what he said, there was a sound of exhalation in the classroom... No further questions were asked and no homework was assigned.

This short documentary covers the history of human society from the Stone Age to the collapse of the Soviet Union. The first part is a general overview, focusing on the Middle Ages, the Hellenistic period (when ancient Greek civilization spread to Western Europe), the Western Roman Empire, the Byzantine Empire, the Renaissance that laid the foundation for European scientific development, the Industrial Revolution that promoted technological progress, the Scientific Revolution from Newtonian mechanics to relativity and quantum mechanics, and the new technologies of the US-Soviet Cold War.

The reason for focusing on the Middle Ages is mainly because the wizarding history of this world is more concentrated in the Middle Ages and the Industrial Revolution.

The magical world as we know it today was formed in the Middle Ages. During the Industrial Revolution, Muggle civilization and magical civilization began to merge.

The young wizards, who had never had this kind of video teaching experience, watched the content on the screen intently.

Some young wizards even began to wonder if Muggles had mastered time magic and could extract these fragments from the past and play them for them, or if someone among them had passed down memories from ancient times from generation to generation.

A short film cannot tell the entire history of technological development in detail, and Douglas only gives students a general impression of the technology in the Muggle world.

So as to avoid being like some wizards who still treat Muggles as people who can be fooled at will in the Middle Ages.

Muggles also have powerful weapons. They are shocked by the war machines of World War II, the atomic bomb explosions and the ruins after the explosions, the Apollo program's moon landing scenes, etc.

Not only were the young wizards from wizarding families shocked, but even the young wizards from Muggle families were equally shocked. After all, they had been separated from the knowledge of the Muggle world since the age of eleven, and the only things they could come into contact with were the common things in life.

The young wizards witnessed with their own eyes that after the Industrial Revolution, the medieval style that was originally the same as that of the magical world suddenly began to turn into various skyscrapers.

Muggles' lifestyles are essentially polar opposites to those of the wizarding world. They still use steam locomotives from 150 years ago, while in the Muggle world, steam locomotives have become antiques, diesel locomotives are beginning to retire, and electric locomotives have begun to operate.

Douglas cleared his throat to bring the students back to their senses:

"In the wizarding world, magic is considered mysterious, while the technological civilization of the Muggle world is considered secular. The huge difference between the two has led to widespread suspicion and resistance of the wizarding world towards the technology of the Muggle world.

Of course, the problem is not just that wizards think they can control Muggles and have a higher status than Muggles.

As you can see, the advancement of Muggle technology has not only impacted the ecology of the Muggle world, but also the ecological balance of the magical world. The pollution and destruction brought about by technological development have also affected the quantity and quality of many magical creatures and items. This is why many wizards resist Muggle technology.

I require you to write a one-foot-long paper on the profound impact that the technological civilization of the Muggle world has had on the wizarding world, including the disruption of ecological balance, changes in the number and quality of magical creatures and magical items, etc.

At the same time, if you are interested, you can study Muggle history and magical history at the same time, and perhaps you will find something more interesting."

The little wizards were still confused at the moment and nodded woodenly.

When they realized it was another paper, there was a cry of grief.

Percy frowned, wondering what he was thinking.

Douglas didn't intend to change the students' minds all at once, he just wanted them to realize the gap between the Muggle world and the wizarding world.

We don't ask for the two worlds to merge, but at least the magical world should learn to develop its own civilization instead of relying on its old achievements, with many contents still stuck in hundreds of years ago.

Chapter 301 Daddy Wormtail

Albanian Black Forest.