This is what Ravenclaw looks like.

"Really, treasures make people get up early..."

The next morning, when Andrew finished his routine run, he couldn't help but sigh when he saw the crowd that shouldn't have been there crowded around the Black Lake.

On weekdays, there are only a dozen people running, and everyone's running distances are basically different-today, everyone got up early.

If the Black Lake hadn't been frozen, Andrew suspected that someone would jump in now.

But if things develop, jumping into the lake is not impossible-after all, the squids by the Black Lake won't drown people...

'Never mind, I'm not a class leader, and even if this happens, it doesn't violate school rules-you can't tear down the school, right? '

Andrew shook his head, and even in order not to disturb the excitement of the group of people, he took a detour to the castle.

He still had a lot of things to do today-review the Transfiguration he had mastered before in the laboratory, handle work in the office, and go to the library to complete homework and preview. He didn't have time to care about a fictitious treasure.

Transfiguration unveiled its mysterious veil to him for the first time, and he was very busy!

——

"This won't work? Isn't it too harsh? How could it be possible just now?"

Andrew sat in the laboratory, looking at the information next to him and the guesses he wrote down, and the whole person fell into a state of rage...

"In theory, this structure belongs to a stable structure and meets the partial definition of the rules, but no matter what, I can't feel the manifestation of the rules on it..."

He sighed, marked the project that just failed, and was ready to turn back to ask Professor McGonagall, and then turned his attention to the next item.

But at this moment, he habitually glanced at the reminder device in the laboratory-it was silent, but it would leave a message about the visitor's purpose, but Andrew didn't know what the spell was.

The originally blank reminder device suddenly had a sentence at this moment.

"We succeeded, it's in the next laboratory, come quickly!"

? ? ?

The next laboratory?

Andrew was stunned for a moment, and began to recall that he had a little impression of the next laboratory, but not much, because they only knew what was going on there, and the main person in charge was still Professor McGonagall and the dean to whom the laboratory belonged.

‘Forget it if you can’t remember… Let’s go check and see if there’s anything good…’

After all, the word success is not used randomly. Except for the lab where Andrew practices, the other labs basically use Sikor as fuel every day. If it’s a key project, the fuel is directly replaced with Galleons.

He checked to see if there was anything missing, and then patiently checked again. Only then did he feel relieved, locked the door and walked directly to the lab over there.

“Wait…”

The more he walked, the more he found something wrong—this lab seemed to have just been put into use, and it was arranged by him, just before the Christmas holiday!

It’s only been a few days and the results have come out?

Are you sure you’re not here to cheat the Ministry of Magic for funding?

And the research target is also old-fashioned—yes, the old-fashioned problem of Hogwarts’ electricity supply!

Are you kidding? This fixed money-burning project is approved every year. You say it’s successful. Who are you kidding? There’s no money to cheat, and no funding to cheat!

But subjective suspicion is not good—at least take a look.

So although Andrew lost interest for a moment, he still didn't give up and walked directly to the laboratory - it was approved not long before the holiday, he wanted to see what was going on.

With suspicion, Andrew knocked on the door of the laboratory - to be more precise, he activated the message system.

But before he could say anything, the door suddenly opened, and a Hufflepuff student with a red face came in.

"You are here, classmate Taylor, yes, yes, we succeeded just as you said!"

What did you say!

I am doing well in the office, and I have no intention of cheating funds with you. The Astronomy Tower is a hundred times better than Azkaban, no matter how bad it is!

But he was soon pulled in - two Gryffindors, three Ravenclaws, and five Hufflepuffs, these are all the members of this laboratory. At this moment, they all blushed and looked like they were about to take off their clothes and run around the Black Lake.

"Here, Taylor, here!"

Andrew was almost forcibly pulled over - in the center of the crowd, a crude benzene device that Andrew didn't know how to describe was placed on the table. It was completely out of Andrew's imagination of mechanical or alchemical devices, as crude as discarded parts in the garbage dump.

However, he soon retracted his evaluation and felt deeply guilty for his misjudgment.

Because after the Gryffindor boy standing next to the machine reached into the pile of thick railings and pointed at a place with his wand, a light from an old-fashioned incandescent lamp that he was very familiar with appeared from a thin metal wire...

'Huh? '

He widened his eyes and couldn't close his mouth.

No way?

Are you kidding!

Merlin's beard!

What's going on!

Isn't Hogwarts because the various protections in the castle add up to form an invisible magic field, and then there is a problem of shielding electromagnetics?

"How did you do it?"

He asked sincerely.

"You said it."

"Me?"

Andrew pointed at himself, looking confused - did the future me come here with a time converter?

What a joke, even a good time-turner doesn't have the ability to travel through time for so long. This is Hogwarts, not a legend of Dumbledore.

"Yes, you said that, Taylor."

The other party nodded, "You said that working with electricity is so vague and illusory. Why not start with lamps? After all, the incandescent lamps most commonly used by Muggles are to heat tungsten filaments for lighting. It is related to electricity but not that difficult."

…

It seems that he said that.

Andrew remembered that when he got the report to the professor, the professor thought that this experiment still had to be done, so he asked him to take people to Mr. Filch to move the failed materials.

After all, the old students had repeated this experiment many times, and a lot of failed materials had accumulated. He saw that those students were a little frustrated at the time, so he casually mentioned a few things he knew about electricity, and then he didn't pay attention to it.

After all, this was an experiment that failed more than a dozen times in a row...

"So what have you been doing during this period?"

"Yes, using alchemical instruments to create high temperatures to heat tungsten filaments, and then successfully made lamps!"

? ? ?

Yes, the working principle of the incandescent lamp is to use electricity to pass through the tungsten filament, and then use the current to pass through the tungsten filament to cause the tungsten filament to become more and more resistant, thereby generating a lot of heat, heating the tungsten filament to about 2,000 degrees, and then entering the incandescent state to glow...

The so-called light bulb is actually a vacuum glass cover to ensure that the filament slows down oxidation and seals the electricity...

In other words, under his guidance, his dear seniors did not make electricity, but made a light directly with great strength...