In This Hogwarts Without a Savior

"Wingardim Leviosa."

The desk in front of Jon flew up under the influence of the spell, but it was only twenty or thirty centimeters off the ground, so there was no way to raise it upwards.

Neville, who was studying the memory ball sent by his grandma and chewing an apple, looked at Jon with a look of despair.

"It's been a month, a whole month! On average, you have to practice this spell more than a hundred times every day! I dream every night with the sound of the floating spell in my ears. You are really successful, Jon! Last time Professor Flitwick has already said that at least your level of levitation spell has reached the standard of most adult wizards. What you lack now is that your magic power has not yet grown due to your age, so you really don’t need to practice any more!"

Jon was still looking thoughtfully at the desk floating in front of him.

"Yes, Professor Flitwick said that my skills in levitating spells are high enough. The only thing left is to rely on time to accumulate my own magic power and experience. But why is the maximum effect I can achieve now only this? ?”

"Is that all?" Neville glared at him, "What you used the magic spell to fly was not feathers, parchment, or textbooks, but a desk! There are several people on this carriage now besides the professor. Can it be done to this extent?”

"This is not a question of whether others can do it, but the floating spell itself feels very problematic." Jon frowned.

Neville bit into the crunchy apple and looked at Jon who finally stopped using the levitating spell. He happily chatted with him for a few more words to make his ears less tortured.

"What could be wrong with the Levitation Charm?"

"It's a little too small."

Jon was thinking, and subconsciously turned the wand with his fingertips. In his previous life, he liked to turn his pen when solving problems, and now this habit has been brought to this world by him.

"Even Professor Flitwick, the levitation spell he used cannot make objects that are too heavy fly. This is not only because of the limitations of his magic power and will, but also because the spell itself cannot exert this effect."

Neville could no longer understand what Jon was saying. He could only keep nodding in agreement and repeating "Yes, that's right, that's it" three times in a row.

"But the levitating spell has been created for such a long time. Many wizards have tried to improve and innovate it in history. What we have learned now is the limit of what it can achieve. Magic controls objects. The limits of flight.”

"One is the limit of the floating spell, and the other is that the spell cannot be released on wizards. These two unsolvable problems together lead to the fact that wizards still rely on flying broomsticks and magic carpets to conquer the sky. This kind of magic carpet has been used since the Middle Ages. It’s an ancient magical tool that has already been used.”

"But since broomsticks and magic carpets can fly so high, why does the levitation spell have a limit?"

"I can't even eat more apples. I'm full after just two." Neville threw a cleaned apple towards Jon, "Don't think about it yet, try it. It's very sweet."

Of course, Jon, who was thinking hard, didn't notice the apple flying towards him, and the apple hit him on the head without any accident.

"boom!"

"Ah! I'm sorry, I didn't mean to. I thought you could catch it."

Neville apologized hurriedly. Jon was stunned for a moment after being hit, and then looked at the apple that had fallen to the ground with a strange expression.

"Neville, why do you think the apple hit me?"

Neville was stunned by Jon's question, and he looked at Jon even more nervously.

"Are you okay? Are you dizzy? How about I take you to see Professor Slughorn?"

"Because the apple will fall."

Jon's eyes were shining as he stared at the apple. He ignored Neville and told himself the answer.

"My ideas have always been limited! This world not only has magic, but also science!"

"When you throw it out, you provide it with an upward force, but there is actually a downward force pulling it back to the ground!"

Neville had grabbed Jon's arm.

"Let's go, hurry up, before you do anything stupid, let's hurry up and let the professor see if you can still be saved!"

Jon slapped his hand away with a dark face.

"I wasn't fooled by the apple! I didn't need the professor to treat me. I was thinking about the problem seriously. Have you ever thought about what was going through your mind when you cast the levitating spell?"

Seeing that Jon didn't look like he was lying, and that his behavior was indeed normal except for talking nonsense, Neville replied hesitantly.

"It's just like what Professor Flitwick taught us in class, firmly believe that the target pointed at by the wand can fly, and then chant a spell and wave the wand."

"Knowing it but not knowing why it is, this has always been a characteristic of magic." Jon's voice was very calm, but it could be seen that he was extremely excited, "It's like turning a match into a needle. At that time, professors would not teach us what kind of molecular structure changes would occur inside the object when it changes from wood to metal."

"The same goes for the levitation spell! Professor Flitwick just told us that we should firmly think that we can make feathers fly, but he did not tell us what kind of principles are needed to achieve this. Then the levitation spell we used will appear The simplest and most direct way of expressing it is to form an upward force on the object itself. It is said to fly, but in fact it is the power of magic that holds it up!"

"Magic is an intervention in the rules. The wizard proposes the idea of ​​change, and the method of change is determined by the magic itself!"

"But what if we actively choose to specify how magic interferes with the rules when casting spells?"

Neville couldn't understand what Jon was talking about at all, but his mouth was open. Although he didn't understand, he could still feel that his roommate had obviously thought of something extraordinary now!

"Do you know why the apple hit me on the head?" Jon asked this seemingly silly question again.

Neville also gave a silly answer: "Because I just threw it at your head."

"Three hundred years ago, a Muggle who was also hit on the head by an apple was also thinking about this problem, but he came up with the answer himself."

A smile appeared on Jon's face, the smile of standing on the shoulders of giants and looking down at the wizards who had no exploration of the rules of the world.

"There is a force in the land we live in. This force pulls all objects on the ground, ocean and even in the sky. The Muggle named Isaac Newton called this force - universal gravity!"