Professor Yang once said.

"○○ is a disease, and it will be cured with electricity. ”

Luo Xiaotian felt that he was going to use the power of the fat man in front of him, well, just use the generator he was about to make!

"So!say!Why did you come here again?!"

Seriously, what exactly is the name of the prop shop owner?

"Hahaha, it's really just a coincidence, my mission in Solomon has been completed, so Lord Morris transferred me back! Ronald, I didn't expect you to enter the Imperial Academy of Magic, and it hasn't been long since then. ”

Luo Xiaotian felt that this fat man was very, very suspicious, but Luo Xiaotian had no real evidence to prove what was wrong with him.

"Ronald, what do you want to buy? If you want to buy Tesla's new magic props, I'm afraid you'll have to wait a while, and I haven't had time to get through to the magic item shop here and Tesla. ”

“... I want to buy magnets, do you have them here?"

"Of course, I have a large magnet that has been treasured for many years here, and it is the treasure of our town store here, but since it is Ronald who wants you, I will sell it to you cheaper!"

... What kind of magnet that has been treasured for many years, isn't it just that it has been kept in the warehouse because it can't be sold at all? Well, whatever, I just hope that it won't be demagnetized because it takes too long.

After a while, the prop shop owner and the clerk walked out with a pile of magnets and magnetite ore, half of which were magnets that had been ground into a rectangular shape, and half of which were rough magnetite that had not been processed.

"What about Ronald? Such a polished magnet should only be found here with us, and even in the Wizards' Guild only unprocessed rough magnetite. Which ones do you want? These polished magnets are a bit more expensive than rough magnetite. ”

Considering that different shapes of magnets are needed to make generators, Luo Xiaotian simply bought these magnets and magnetite rough stones.

It cost a total of two gold coins, so expensive!

......

Luo Xiaotian hesitated slightly, whether it was better to let the magnet turn or let the coil turn.

In the end, it was decided to let the magnet turn, well, not because there were some technical problems that could not be solved, but because the wire made of silver coins, even if it was coated with a layer of resin on the outside, it would make Luo Xiaotian's eyes hurt when it turned.

Anyone who has learned the principle of magnetism and electricity understands, Luo Xiaotian quickly made a prototype of the generator, the large circle with the wooden handle is the place where the power is provided by the hand crank, and the small circle connected by the leather transmission belt is fixed with two magnets, and within the range of the magnet rotation, it is a coil with silver wire around the city.

The two ends of the silver wire extending from both ends of the coil were fixed by Luo Xiaotian and placed in a very close position, so that if a current was generated, Luo Xiaotian could clearly see the discharge phenomenon.

So, with apprehension, Luo Xiaotian turned the handle on the big circle.

As the speed of the big circle and the small circle became faster and faster, Luo Xiaotian also began to stare intently at the two ends of the coil that was fixed.

It's a pity that the limit speed has been reached, and Luo Xiaotian didn't see any electric light there.

After thinking about it for a while, Luo Xiaotian moved the coil a little closer to some magnets, so that most of the magnets stretched into the coil.

Sure enough, if Luo Xiaotian didn't feel wrong, there was a very weak resistance from the end of the handle, and after a while, Luo Xiaotian finally saw the generation of electric sparks.

It's a small step for me personally, but it's a giant leap for humanity... Ahem, cough, anyway, even if Luo Xiaotian made the first generator now, he didn't know what kind of impact it could have.

What we need to do now is to optimize the system and then come up with a generator that directly generates direct current.

Luo Xiaotian vaguely remembers that there are two words, commutator and brush, these things are often seen in the four-wheel drive motor that he played with when he was a child, and the principle and working method must be carefully recalled before he can remember.

In short, now that a prototype of a generator capable of generating electricity has been manufactured, Luo Xiaotian came out of the laboratory where he had been staying for two days, and suddenly felt an incomparable hunger rush from his body.

It seems like I haven't eaten for two whole days.

......

Because he had just come out of the dark laboratory, the sun outside was dazzling.

Luo Xiaotian felt as if he was a piece of walking corpse desperate for his brain, running all the way on the school square.

Luo Xiaotian also knew that his hair should be like a chicken nest now, not only with a scruffy beard, but also with a pale complexion, like a vampire who was dissatisfied because he hadn't sucked fresh blood for a long time.

"What's wrong with you?"

On the way, he met Chrissy, who was also going to eat.

"It's too late, Chrissy, come with me quickly!"

"What the hell is going on?!..."

Also, it seems like it's been a long time since I've seen Brown, so where the hell did this guy go?

Hawkers, now is not the time to care about this, no matter what!

Gragging Chriss's arm, Luo Xiaotian continued to run wildly in the square. As for why he had to pull Chrissy along?... Who knows.

......

“... Ronald, this is the tenth plate of roast you've eaten, and the fifth loaf of bread..."

“... Then a barbecue, a vegetable soup, and two loaves of bread! Why don't you order something, Chrissy?"

This is the first floor of the restaurant, and Luo Xiaotian really doesn't want to waste any more time running to the second or third floor, so even if there are very few types of food on the first floor of the restaurant, Luo Xiaotian is quite satisfied, because the amount of food is large enough.

“... I'm already full after you've eaten, so I'll have a vegetable soup and bread too. What's going on? I haven't seen you come to the library for the past two days. And Brown hasn't been back, and I don't know where he went. After asking Mr. Scripps, he said he didn't know. ”

"Well, you wouldn't have cared about Brown before. ”

"Ahh After all, it's someone I see often, and I asked the teacher when I suddenly thought of it..."

After filling the gap of hunger, Luo Xiaotian's mind began to return to normal, and he finally broke free from the feeling of being driven by his body's instincts.

It seems that Chrissy is starting to change a little bit as well.

"I don't know where he's gone, and if Christian comes back, I'll probably know that they're on good terms. Don't worry too much, maybe Brown will be back in two days. ”

“... I'm not worried about Brown, it's just a normal relationship between classmates!"

"Okay, okay, I see, your vegetable soup and bread are here, don't you need to add a little more barbecue? ”

"So... Can you give me a piece? I can't eat such a large plate alone..."

"Of course no problem!"