"The postpartum care of slimes should first start from the prenatal period, and the slime should gradually reduce the amount of feed four or five days before giving birth, the purpose of which is to reduce the pressure in the body, eat less before giving birth, and eat more after giving birth. If you eat too much before giving birth, it will affect the discharge of sperm and unfertilized eggs, and even reduce the fertilization rate of eggs due to the food being squeezed out and contaminating nearby water bodies. ”

In the classroom, the students were intently writing notes.

As the use of slime gum becomes more and more extensive, the slime farming industry will also rise, so learning slime farming techniques means not starving to death at least in the future.

There was a faint sound of a military horn outside the window, and Enrico's hand holding the pen shook slightly.

With the arrival of reinforcements from all over the country, they didn't need to help on the defense line of the space gate, and all the students returned to the campus.

The day before the evacuation, he launched a counter-charge with the demon army that came to reinforce under the sound of this charge.

After the battle, he was not able to be held and rubbed by the beauties of the demon clan in line like Charles, but got a fountain pen from the demon prince.

In the knowledge city, there are people passing by who eat melons and carefully make a statistic, and in a few days, this demon prince has sent out almost thirty fountain pens, and they are all different styles.

Whether on the human side or in the Rurik Kingdom, a good fountain pen is expensive.

Ru is a man of money, and after asking Artoria about several long-established handmade pen workshops in Abyss City, he buys up their stock and gives it to Kalashniko Meow for distribution.

Students are proud to have a good fountain pen, but on the side of humans and elves, giving fountain pens has the meaning of academic teachers recognizing students' grades, and if you want to use the fountain pen, you must either save money to buy it yourself, or you have to give one after your grades are recognized.

If you don't have money and no achievements, then you can use a quill honestly.

The material of the quill comes from a variety of sources, the most precious is the feathers on the wings of the griffin, the common ones are goose feathers, duck feathers, etc., and the rooster feathers are the cheapest.

In other words, the quill is not ready to use, it still needs to do some processing.

The first step is to scrape off the muscles, skin and other tissues at the base of the feather, and then make a small incision at the bottom and clean the inside of the feather duct with a slender needle.

Next is the hardening barrel, which is usually heated for a period of time by inserting the lower end of the quills into the hot sand.

Finally, the most important step is to sharpen the nib.

Whether a quill is good or not, whether the nib is good or not is the key.

The nib of the pen should not be cut diagonally, but should be oriented in such a way as to take into account the shape of the feather, so that people can hold the pen comfortably. After cutting the knife diagonally, the nib is cut into a shape similar to that of a steel nib with a knife, and the ink sink is cut from the nib upwards. It can be said that the shape of the nib appears on the quill.

In order to make the soft and hard nib suitable is a technical task, it is necessary to adjust the shape of the tip according to the material properties of the feather tube to meet the requirements, which requires the person who sharpens the nib to have rich experience and superb craftsmanship.

Of course, this is all the treatment of expensive quills, and ordinary quills can be cut and punished with fate.

Charles didn't really know this before, he only knew how to use a quill, and Vichy was sharpening the griffon's quill while talking to him about how to sharpen the tip of the pen.

In a small study room in the library of Shield Bridge College, Charles was making calculations on a piece of scratch paper, with a parchment book in front of the manuscript paper and an open pink cover notebook on the left.

When the magic circle works, it radiates mana fluctuations outward, interfering with other nearby magic circles. On the other hand, the different mana fluctuations of each node of the magic array will also sense itself, causing interference to other nodes in itself. The purpose of the mana shield is to cut off the propagation path of mana fluctuations, thus eliminating interference. Among the many ways to solve the problem of magic fluctuations, shielding is the most basic and effective. The biggest advantage of using the shielding method to solve the interference problem is that only the shielding body needs to be set in the empty space next to the corresponding magic circuit, which will not affect the normal operation of the magic array, and there is no need to make any modifications to the magic array circuit.

The attenuation of mana as it passes through the shield is due to a loss of energy, which can be divided into two types: reflection loss and absorption loss.

At the same time, the same shield has different shielding performance for different nature of magic fluctuations.

Therefore, when considering the shielding performance, it is necessary to have a basic understanding of the types of magic fluctuations, and relevant calculations need to be carried out to determine the optimal choice.

Previously, Charles asked Professor Kilby in the Principles of the Magic Array class for advice on this knowledge, and the professor recommended Vichy to him.

As the honor student of Shield Bridge Academy, the school flower and the president of the student union, Vichy has a deep study in the magic array, and it is no problem to guide Charles.

Only then did Charles know that the notebooks with pink covers that the professor had lent him earlier were Vichy's.

Charles invited her to the library today to ask her for advice, paying the price of owing her a meal of sushi.

When Vichy came back this time, she heard from her friend about the white grouper's sushi restaurant, and she just wanted to wait for him to come back.

After Charles asked a question, this beauty just said which book to find and turn to the first page, and then which notebook to turn the first few pages, and turned to the point that she could understand it by reading it slowly, and if she didn't understand it, she obediently went back to the classroom to learn slowly.

She sat down at the table, and took out a dozen griffin feathers and a knife and slowly sharpened the tip of her pen.

The Griffon Knights of the Bischberg Kingdom arrived on the day Charles became a meow, led by Aavis Bischberg.

These days, the griffins have risen and fallen, and have lost a lot of feathers, which is the material of high-end quills, and Vichy has managed to get a lot of them back to work on them.

After the most complicated calculations were completed, Charles asked her, "I didn't think you could sharpen a quill." ”

As soon as someone finished speaking, he suddenly felt a pair of unshoed feet stepping on the upper of his sandals.

"The new shoes grind the feet and let the feet relax. Vichy said.

The leather sandals worn in the summer of this world are no different in appearance from Charles's hometown, but the material is different. Cheap shoes are not made of good material, and it is common to grind your feet when you first buy them.

She continued: "In the past, Mrs. Luo Shanna told me that girls should know a craft, so as not to have food in case men are unreliable in the future. ”

"Definitely. Charles nodded, the old lady used to say the same thing to Mordred, so he taught Xiao Mo the art of making marshmallows.

At this time, he felt that Weizi's feet were constantly moving, and asked, "What, is your foot bruised?"

Vichy nodded slightly.

Charles threw a healing spell at her foot under the table with his left hand and said, "You can put on your shoes after strengthening your foot defense for a while." ”

As a result, Vichy pouted and said, "Hey, at this time, you should have said that you should wait until you buy me a new pair of shoes that don't wear my feet." ”

"No problem. Charles agreed, "Even if it's the next time I ask you for tuition." ”

Vichy immediately said: "Then you can ask for advice a few more times, I want to get enough of a decent winter coat." ”