"What is a magic spell?"

Standing on the podium, Professor Yao repeated the question again.

Under the podium, the students held quill pens, pressed their notebooks, looked up at the professor with their heads up, and looked like they were copying the book at any time. This made Lao Yao a little disappointed.

"Originally, this was supposed to be the question you asked me in your first Charms class," he flipped through the handouts in his handout, the pages rattling between his fingers, "but unfortunately, for a whole semester, you learned a whole series of new spells, but none of them talked to me about it in or out of class. ”

"There is no one!"

The students lowered their heads and said they were ashamed – of course, it was just a gesture of apology. In fact, not many people are sincerely repenting, everyone just follows the professor's meaning, the meaning.

Lao Yao wouldn't dwell on this kind of question for too long, and when he saw that no one answered, he explained directly:

"Magic spells are a way to 'express the law' of multidisciplinary knowledge such as talismans, magic scripts, divination, and pharmacology through fixed permutations and structural formulas. Of course, this is the definition after the popularity of dimensionalist thought. ”

As he spoke, the chalk that had been floating on the back of his head began to twist happily on the blackboard again, creaking, and a series of beautiful flowered characters were left on the blackboard, and an asterisk was added to the whole definition to indicate that it was important.

In the hall, the young wizards who were bowing their heads in confession a few seconds ago had already grabbed their quill pens and copied them happily.

“...... The fact that there are many other magical disciplines is a mixture of other magical disciplines means that magic spells are not simply copying spells and reciting spells. We need to see the essence of the spell through the phenomena. ”

"What is the nature of the spell?"

"If we say that talisman is the analysis of the origin of the world by wizards, magic is the analysis of wisdom and consciousness by wizards, and divination is the analysis of dimensions and the long river of time by wizards...... From these perspectives, then, spellology is an application method that integrates many of the above analyses. ”

In other words, behind every magic spell, behind every spell, contains the essence of many magical disciplines such as talismans, magic, divination, pharmacology, and alchemy. She and other disciplines are mutually dependent and complementary. ”

"For example, we all know the physical formulas – for example, the formula for calculating friction f = μN?? bar. ”

At this, Professor Yao paused for a moment, his gaze sweeping over the many students in the classroom.

Everyone nodded in agreement.

Zheng Qing is no exception.

While it's a bit strange to mention the friction calculation formula in a Charms class at a wizarding university, it's not a strange thing for most knowledgeable wizards.

In fact, many of the explosive discoveries and inventions that have appeared in the modern Baiding society have been selectively disseminated by the Wizarding Alliance. Physical formulas such as the calculation formula of friction and the mass-energy equation belong to the content of alchemy.

Professor Yao nodded with satisfaction and continued: "For example, the relationship between magic and other disciplines is like the relationship between the friction formula and pulleys and bearings, and the relationship between the mass-energy formula and nuclear weapons. ”

"If disciplines such as talismans and pharmacology study basic physical formulas, then enchantments are convenient tools built from physical formulas, including but not limited to pulleys, rifles, nuclear bombs, and timers. ”

"It's just that in the world of Baiding, there is still a long practical distance between 'reason' and 'use'. In the wizarding world, there is only a law book between 'reason' and 'use'...... Earlier, it was across a staff. ”

"That's probably the magic of magic. ”

......

Throughout the class, Professor Yao explained the basic principles of magic spells to the students.

The board book copied one blackboard after another, and even the school worker elves who were responsible for wiping the blackboard were a lot busier - usually in class, they all sat on the protrusion of the blackboard, smiling and watching the students learn magic, and occasionally handed tea to Lao Yao, but for most of today's class, they were flying around in front of the blackboard, wiping the blackboard, dealing with the chalk heads that fell to the ground from time to time, and the dust that diffused at the front of the classroom.

Zheng Qingjiao's wrists were sore, and under his busyness, he unknowingly left the 'Satogua Incident' last night behind him - he had planned to discuss this matter with his companions at noon.

But until the bell rang for the end of class and Lao Yao left the classroom, he didn't remember it.

Just when Zheng Qing was frowning while packing up his books, thinking about it for a long time, and always feeling that he seemed to have forgotten something important, a pleasant voice sounded in his ears:

"Are you recalling what your professor taught in class?"

Holding the textbook, Yelena tilted her head, appeared next to Zheng Qing, and looked at him curiously.

Zheng Qing took a deep breath, and his thoughts, which had been racking his brains, suddenly emptied, and between the lightning and the fire, he didn't know which two nerves were wrong, making him suddenly realize another thing.

"I'll just say...... I always feel that when I see you this semester, something is wrong. The young wizard looked at the gypsy witch carefully, and instead of answering her question, he asked, "Have you changed your perfume?" ”

Yelena blinked, and the corners of her mouth hooked slightly:

"How is it different?"

Zheng Qing's face was crumpled.

"Well, it used to feel good...... Rich aroma. His eyes were empty, capturing the residual impression in his mind, and slowly compared: "But now it's fragrant... Well, it's a very light fragrance. ”

Yelena looked at him with crooked eyebrows: "Then do you think I smell good now, or I smell good before?"

This is a question to be scored.

"It smells the same. Zheng Qing's expression changed, and he said righteously: "Any perfume with you will smell the same." ”

Yelena smiled even more.

Behind the witch's side, the fat man Xin, who was packing up his things and was about to leave the classroom, turned his head after hearing Zheng Qing's answer, bared his teeth, stuck out his tongue, and made a vigorous retching expression.

Zheng Qing pretended not to see the fat man doing anything.

"Do you sleep well in class?" he said, changing the subject, quipping the gypsy witch, "Would you like me to draw you a few sleeping or mute notes?" ”

Yelena's earlobes turned red.

"Whew!"

She shook her hand and threw out a note and slammed it on the wizard: "Professor Montella told you to go to his lab at one o'clock on Saturday afternoon...... This is what one of my seniors entrusted me to pass on to you. ”

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