Crescent college, early morning.

Autumn dew has not yet evaporated, the cold wind has come, rolled up the remaining leaves, drifting towards the distance.

The students of crescent college have already changed into winter clothes of thick black silk stockings and short suits and skirts. Although they are skirts, they adopt the design of keeping warm, so they won't feel cold even in winter. The girls are talking and laughing on the way to the classroom in twos and threes.

"Good morning, Miss fina."

A few students saw also walking on the road of fina, they said hello.

"Good morning."

Fina nodded slightly and said nothing more.

The students have long been used to this indifferent teacher. She doesn't talk much. She can hardly chat except in class. Even in class, she only focuses on the content of the textbook. However, because Phina's explanation is very to the point and can be understood immediately, her class is also very popular. The students always keep a sense of awe towards this teacher.

Of course, the reason why fina is a little upset today is that she felt a magic ripple in the school last night.

In the eyes of ordinary people, this wave of magic may be like a breeze, which can't be found in the twinkling of an eye. But fina is more sensitive to the change of magic. She knows that someone has successfully advanced.

These students have just been exposed to magic for a short time, so it's impossible for them to advance. Other teachers don't have similar symptoms, so in retrospect, they can only be one person.

Fina takes a look at the tower not far away, where the principal's office is.

Although fina is happy for Lena's continuous improvement, she also has a little worry.

If Lena became a high-level mage and entered the high-level Council, would he care about this small school, their students and teachers?

In the past six months, fina has devoted herself to studying magic. She has tried her best to improve her level of magic. Under Lena's answer, she has already touched the threshold of the second ring. For ordinary mages, this is extraordinary speed. However, in her opinion, she is still too weak to stand beside Lena, and even can't see her back.

Sometimes fina really envies Claire for being able to be carefree around him without thinking about the future.

The life span gap between mages and ordinary people is not obvious in recent years, but as time goes on, high-level mages can only watch their relatives and friends die one by one, and they are lonely all their lives.

Fina didn't want this to happen, so she tried to catch up with Lena.

Unlike fina, who has mixed feelings, Lena is in a good mood.

Six ring mage, the peak of the medium level mage, only took him more than half a year to reach, which is unprecedented in the history of mages.

After summing up, Lena felt that in addition to the knowledge from the earth, which made him less detours and made many discoveries, there were other reasons for his smooth advancement.

The first is the feedback of the world. Although at first glance, only magic can be improved and can't be directly broken through, the quality of these magic is quite high. Lena doesn't need to spend too much effort to control these magic, they will spontaneously assist Lena in casting.

The second is that when Reiner advanced to the third ring and the sixth ring, he used his own magic. There is no doubt that these magic matches Reiner better. When Reiner conceived these magic, he had demonstrated the magic model in the heart lake countless times, so he could engrave it in the heart lake faster.

Lena stood up and stretched. Last night, he was too tired. The high-intensity precision experiment of the whole day and the breakthrough of two levels in the evening made him physically and mentally exhausted. After finishing the advanced aftercare work, he fell on his desk and didn't wake up until the morning.

He saw the students passing by the window and gave a smile.

At this time, the sound of opening the door came from behind, which made Lena turn his head.

Alice, with her office papers in her hand, is yawning and pushing the door in. She didn't sleep well last night. It's the novel Claire recommended to her that caused the trouble.

Half way through the door, alimia suddenly sees Lena sitting in it. She covers her face and yawns in the same place.

"..."... "

when they look at each other, alimiya moves.

"I must have stayed up too late. I'm hallucinating."

With that, alimia retreated and closed the door again.

It took about five seconds for her to reopen the door, this time with impeccable grace. She saw Lena still sitting in her chair and said calmly.

"Good morning, principal Lena. You're not late today."

Then he went to his desk and sat down. It was unnatural.

Lena smiles and doesn't say much. He picks up the paper he wrote yesterday on the desk, arranges it and hands it to alimia.

"Please send this paper to the paper review committee for me.""What's this?"

Alimia took the parchment and looked at the title.

An enlightening view on the generation and transformation of light.

"The production of light? Transformation? "

Alimead was curious when she was young. She also heard about the wave theory of light and the particle theory, which have been quarreling in the magic world. However, with her current theoretical knowledge, she can't make her own judgment on the contents of these two theories, so she doesn't pay much attention to them.

It seems that Lena was working in the office all night last night to write his thesis, which is why he appeared here so early today.

A little touched, alimia began to read the paper.

But soon she gave up. Although alimea was a top student, after becoming Lena's secretary, her focus of learning magic was on the necromancer magic. If there is no accident, alimea can try the advanced second ring at this time next year.

For the element system, or this kind of high-end content, alimia can't easily understand.

Nevertheless, she saw the last sentence that Lena mentioned.

- it can be inferred from the photoelectric effect that light has the characteristics of particles. In the photoelectric effect, light should be regarded as a kind of particle and conform to the energy distribution of Stein formula.

"Is light... A particle?"

Emilia tilted her head and looked at Lena.

Is this paper going to end the decades long dispute between the wave theory of light and the particle theory?

You've just witnessed history?

Because Leiner's theory has been affirmed all the time, and Emilia also believes in Leiner, she thinks that Leiner's paper must be correct.

At the sight of aimiya, Lena smiles.

"To be exact, light is a particle, but it is also a wave."

Emilia didn't understand any more.

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