Hogwarts passer-by professor

Chapter 138 The Feasibility of Time Travel

As for magical props like the time turner, after Eisen learned more about it, he discovered that it was made using a spell called the Hour Reversal Curse.

Obviously, the hour reversal spell is a kind of time magic.In fact, it is not surprising that a time-based magical Aisen appears in this world, because this is completely understandable.

After all, this world already has space-based magic such as the Traceless Stretch Spell and Apparition, so it is natural that time-based magic exists.

However, unlike space magic, time magic such as the hour reversal spell is very unstable.It is not like Apparition. As the proficiency of the spell caster increases, the stability will gradually improve, and finally it will be completely mastered by the spell caster.

As for the hour reversal spell, this spell itself is extremely unstable.

Just like Professor Crocker in the Department of Mysteries, as a professional who has spent his life studying time magic, his research results show that the hour reversal spell itself is very unstable no matter how the wizard practices it.

If you want to use it, you can only seal it in a small hourglass container, make it into a time converter, and use this to improve the stability and reliability of this spell.In this way, wizards can carry it with them and travel in time.

Of course, even so, the maximum time wizards can travel through time via a time turner should be limited to five hours.

Because of the Department of Mysteries' research on time, the current conclusion is that if one wants to avoid causing serious harm to the time traveler and time itself, the limit time for time travel is five hours.

In the original book, when Hermione was in third grade, she took all the courses through the time turner.A complete class at Hogwarts lasts two hours, which is obviously within the five-hour limit, so Hermione used the time turner without any problems.

However, even so, Eisen still suspected that Hermione was a little affected.After two years of contact with Hermione, Eisen knew what kind of state Hermione, a top student, was in when she was studying. It should be very appropriate to describe her as a duck in water.

But in the original book, after Hermione used the time turner, her whole state was not right.Not only was he the first to go to the library every day, he was also the last to leave the Gryffindor common room.

The long experience made her nervous.This shows that at least Hermione is under some pressure.Otherwise, she wouldn't have turned in the Time-Turner at the end of the semester.

Of course, in addition to using the time turner for study, Hermione also did another thing, that is, she and Harry rescued the Hippogriff Buckbeak and Sirius Black.

The Time Turner forms a closed loop in this matter, which seems very reasonable.The reason for this, Eisen guessed, was that they completed it all within three hours.

Of course, the reason why the optimal amount of time for time travel using a time turner is five hours is because previous experiments have had serious consequences.

It is said that there was an experiment in the Department of Mysteries in which a witch was trapped in time travel to 1402 for five days.

As a result, when the witch returned to modern times, her body directly suffered the baptism of time and aged for five centuries.The witch eventually died in the Spell Injuries Unit at St. Mungo's Hospital for Magical Injuries and Injuries.

The body had aged for five centuries at once, and there was no doubt that this was an irreparable mistake.But if you think about it carefully, this consequence doesn't seem to be a problem for Aisen now.

Because Eisen is already immortal, there is no need to worry about the side effects of time travel such as aging of the body.

However, this kind of harm to the time traveler's body is only one of the consequences.More seriously, another injury left everyone feeling terrible.

For example, during the five days that the witch was trapped, the lives of some of the people she met were also affected.The intuitive impact is that the descendants of about 25 of them have disappeared directly in modern times.Because the descendants of those people were not "born" in modern times at all after being affected.

Eisen can actually understand such consequences.After all, if you change the trajectory of a person's life, it's not surprising that the future will change.

However, time itself was also affected, which Eisen didn't really understand.It is said that the day when the witch returned to modern times was Tuesday. As a result, that day lasted for two and a half days, and the following Thursday ended in only four hours.

What makes Eisen feel strange is how does the wizarding world judge that a certain day is Tuesday?Isn't it determined according to the rotation of the earth and the calendar?
But if the time in the wizarding world is no different from the time in the Muggle world, then Tuesday lasted for two and a half days, does that mean that the earth's rotation has actually slowed down by more than double?And only four hours passed on Thursday. Does it mean that the earth's rotation speed has accelerated several times?
Such changes, regardless of the possibility of earthquakes and tsunamis, just the violent changes in the magnetic field will lead to huge disasters around the world.As it turned out, the Ministry of Magic just had a lot of trouble covering it up.

After pondering for a long time, Eisen felt that this should also be some flaws in the original work.But no matter what, at least Aisen didn't dare to use the hour reversal spell.

Even if Eisen gets the time turner, the purpose is to let the golden finger work and see if he can replicate the characteristics of time travel.

If such a goal can really be achieved, it will definitely be a matter of extraordinary significance to Eisen.This means that time travel will definitely become more feasible for Eisen.

After gathering his thoughts, Eisen changed his vision and saw the scene outside Hogwarts Castle.The sky was clear and cloudless that day and looked exceptionally clear.The sunlight shines on the green lawn, giving people a feeling of vitality.

With a slight thought, Eisen turned his attention to Dumbledore's office and found that he was not in the office, but resting in the small bedroom in the cubicle behind the office.

Since Goldfinger didn't respond to Ravenclaw's diadem, it was natural to give it to Dumbledore.

Thinking like this, Eisen flashed and arrived at Dumbledore's office in an instant.

The office was as usual, with portraits of past Hogwarts principals hanging on the walls. They had their eyes closed and were snoring softly, as if they were resting.Behind the huge table, on a shelf, was a wrinkled and torn Sorting Hat.

On the gilded perch behind the door, Dumbledore's pet phoenix Fawkes has grown up fully, with bright red and gold feathers, and it looks much more beautiful.After Eisen arrived, it stared at him, making strange noises from time to time.

"Well -" Dumbledore walked out of the cubicle and saw Eisen standing aside, "Professor Eisen, can't you let me, an old man, take a good rest for a while?"

"Professor Dumbledore, how is the injury on your hand?" Eisen smiled slightly and changed the subject easily.

"Not bad. Maybe the injury will be fully recovered without waiting until the new school year begins!" Dumbledore stretched out his right hand, and the scorch marks on it had faded a lot.

"This is really good news!" Aisen sighed from the bottom of his heart while speaking.After all, it is best for Eisen to have Dumbledore live well.

"Okay, thank you! But I think that when you came to me at this time, you probably didn't come to ask if I was okay!" Dumbledore's expression changed and he looked directly at Eisen, as if waiting for his reaction.

"That's right, I have something very important to tell you!" Eisen didn't pay attention to Dumbledore's expression change, but took out something and put it on the desk, then turned to look at Dumbledore .

(End of this chapter)