Agatha looks like a quiet doll, but she does things with great vigour.

Not long after the class, her pink face gradually turned pale, and then she took a day off on the grounds of a girl.

Charles couldn't figure out if she was really unwell.

A day passed uneventfully, and at dinner, the bounty for finding the ring was 600,000 elf dollars.

This incident became the hottest headline on campus for a while, and the students eating dinner in the cafeteria were discussing Christian's lost ring.

Tonight, Charles came to the second floor for dinner, and a portion of rice and potato stew simply filled his stomach.

After dinner, Charles made his way to the lab building, where the lab for developing the Bright Light Crystal was just a few floors above Langsha's laboratory where he was researching Slime.

Perhaps because of the advertisement, there were a lot of guests in the laboratory today, but most of these people wanted to make their motorcycle lights more bright, and one person came with a shield, intending to install a strong light on the shield.

The guest was greeted by a middle-aged man in his forties, who Charles had asked the other teachers at the end of class, and the man named Mayman was a teaching assistant at the college, who had been working at the college since graduation, renting laboratories and hiring students to conduct research work on magic lamps.

There are many places where magic lamps are needed, and many workshops that make magic lamps will come to seek cooperation, so Mayman has always had a good income, and he can afford to rent a laboratory and hire students.

It's just recently that I heard that Mayman is working on something new that requires expensive gems to make materials. Even if he made a lot of money in the past, it was not enough to throw in this pit.

Now Maiman's plan was to sell a few of his technologies to the workshops that produced magic lamps, and he didn't bother to go to the technology dealers, so he simply hung an advertisement on the bulletin board and let the technology dealers come to the door themselves.

However, the technology dealers did not come, and the people who came to the door today were all retail businesses, and the mosquito legs were also meat, and there was no reason for Meiman, who was short of money, to let it go.

The requests of those guests were varied, in addition to those drag racing teenagers to buy car lights, there were also people who came to buy lighting rings for flashlights, colorful luminous necklaces and so on.

Mayman was busy for a long time, jotting down the customer's requirements and contact information, and planning to finish the simple work tomorrow morning.

After seeing off a guest, Maiman saw that there was no one lining up outside the door, so he put his notebook on the table.

He was stunned to find a fresh face staring intently at a sketch on a blackboard on the wall.

That's what he's been researching lately, and when he was thinking about a problem during the day, he drew a sketch and wrote down a little idea on it, but he didn't erase it because he didn't think it was a secret.

Mayman walked up to Charles's side and asked softly, "What do you think of this idea?"

A cylinder is drawn in red chalk on the blackboard, the ends of which are painted white with the identification of silver, and the cylinder is surrounded by curves representing the input of mana, and the white section at one end has a small hole drawn on it, and a dashed line from the hole represents a beam of light.

Charles took a deep breath and said, "I don't know." ”

He used a laser rangefinder when he was on the construction site in his last life, and later he searched the Internet for some knowledge of lasers out of curiosity, and now what is drawn on the blackboard, how does he look like an optical resonator.

It's just that those lines on the blackboard are observed phenomena and some speculations, without any theoretical basis.

Charles asked, "Is there any theoretical study of this phenomenon?"

As a result, Mayman shook his head and said, "No, I just discovered this phenomenon by accident. Then I looked through the ancient books and found that some travelers mentioned that through this method, rubies can produce a very special light. ”

Charles only frowned, he didn't know much about lasers, only that it was a high-tech thing, and he didn't understand the formula that explained its principle.

He didn't want to talk nonsense about things he didn't understand, so he changed the topic and said: "I'm helping the Joyoung Chamber of Commerce, and the strong light crystal technology in your hand is needed by the Chamber of Commerce, can you introduce it to me." ”

At the same time, he handed a business card of the Joyoung Chamber of Commerce to Mei Man.

Seeing that a technology dealer finally came to the door, Maiman said happily: "Of course, please come over here, and I will introduce you to the latest lighting crystal." ”

The Illumination Crystal is more than just a crystal, it has a magic circle engraved at the bottom, which is inlaid with magic crystals that act as magic conductors. When the magic circle is activated, the crystal emits an intense light.

The lighting crystal that emits white light is relatively cheap, and the lighting crystal that can emit colored light is extremely expensive, and the energy consumption is also high, and generally only local tyrants can use it during the festival.

This is because the white light lighting crystal material is simple, and the color light lighting crystal needs to add a lot of expensive additives when preparing it by hydrothermal method.

Mayman roughly explained to Charles the technology he wanted to sell, this kind of strong light crystal used a new formula, a new magic array, and theoretically a crystal the size of a quill head could emit the light of two or three hundred candles.

"It's only theoretical, because I can't carve a magic circle into such a small crystal. Mayman shrugged, "But I made crystals the size of my fingernails, and I can show you how." ”

Charles nodded and took the sunglasses that Mayman handed him.

Mayman then turned off the lights in the lab and activated the device on a desk.

Snow-white light suddenly filled the entire laboratory, and it felt like a searchlight.

"That's good. Charles said with satisfaction, "After adding reflectors, it can still be used in places such as city defense." ”

Mei Man rubbed his hands and asked expectantly, "I wonder how much your chamber of commerce is willing to pay for this technology?"

Charles didn't answer directly, but asked Mayman: "Have you heard about the academy and the Jiuyang Chamber of Commerce preparing to establish a research center?"

Mei Man thought for a moment and asked, "I've heard that there is a chamber of commerce that wants to cooperate extensively with the academy, is it your chamber of commerce?"

Charles said: "That's right, it's our Jiuyang Chamber of Commerce. ”

"This research center is about to be established, and I think the boss will provide generous funds to the collaborators who come to the door as soon as possible. ”

Mei Man immediately understood what Charles meant, many people understand the truth of horse bones in Qianjin City, and this news is very useful to him.

After talking about this order, Mayman personally sent Charles out of the door of the laboratory, and gave him a bright ring that could be used as a flashlight when he left.

This ring is a test item for Mayman, and it is worthless to him, so it is quite suitable for a good relationship with a surrogate like Charles.

Although the research center engaged in by the Jiuyang Chamber of Commerce is a new thing, there are rivers and lakes where there are people, and many truths are interconnected, if Charles can help himself say two good words, then the technology can be sold for more money.

Seeing that it was not too early, Charles thought that he should be able to put on a good show tonight, so he didn't go to the group that researched the "Rich Woman's Happy Crystal", he walked out of the laboratory building and returned to the dormitory.

Tomorrow was an auction organized by the merchants, and during the day there would be a secret auction of goods of little value, so he decided to go to bed early and get up early to see what was interesting.

When Charles returned to his room, the whole room had been cleaned, his clothes had been washed and dried, and the row of money bags on the table was gone.

Lately, the Machines have been obsessed with playing cards, and the devil knows how the seven of them decide the winner, with the loser coming over the next day to help Charles tidy up his room and do his laundry.

There's an auction tomorrow, so Charles gives each of them a little money to buy what they like.

Not long after Charles returned to the dormitory, there was a rude knock on the dormitory door, and someone yelled, "Open the door, check the room!"