World line? Light cone?

After becoming an advanced mage for so many years, Broly Augustine felt that she could not keep up with the progress for the first time. Although Reiner's statement and the moving light spot demonstration were already very intuitive, it was still a bit difficult to make Augustine accept a brand new concept so quickly.

"Simply put, you, if we can clearly know the current position of a particle and its motion trajectory, then we can naturally deduce the position of its past, present and any time in the future. When this position is connected, it is a line. This is the world line of this particle. The world line points from the past to the future, and the specific coordinates are presented in real space."

Seeing that everyone was still confused, Reiner drew a three-dimensional Cartesian coordinate system, with a point starting from the origin and moving in a direction, presenting a clear trajectory.

"For the sake of easy understanding, we can not discuss the situation of real space for now, assuming that there is a two-dimensional world with only planes."

With a wave of Reiner's hand, the three-dimensional rectangular coordinate system suddenly became a plane rectangular coordinate system, and a point moved in the plane, drawing a curve.

"When we change the original longitudinal axis z to time, the trajectory of this point will show three-dimensional characteristics, and this will also appear in the three-dimensional coordinate system, but the axis of time is not what we see."

"You mean high-dimensional space?"

His Excellency Pragues looked at Reiner's demonstration and said in a low voice.

"It can be understood so simply that, Mr. Pragues, in fact, I would rather call it Ian Grey space, because this is not simply a space with one dimension more than length, width and height, but a space-time composed of time and space."

Reiner smiled, and then he performed relevant calculations and arguments, and derived in detail the Ian Grey space and the way the world line was presented in the Ian Grey space.

"This can be another paper, Reiner."

President Dmitry nodded slightly after listening to Reiner's derivation process.

"Ian Grey space is not an independent theory, but a knowledge closely integrated with the theory of relativity. I thought you only solved the problem of the speed of light, but I didn't expect that you have subverted the entire concept of time and space since ancient times."

Whether it is time not absolute or the speed of light is insurmountable, whether it is Reiner's theory of relativity, or this strange but harmonious Ian Grey space, these are things that are contrary to people's past experience intuition and common sense, but have a mathematical foundation.

After this meeting, the advanced mages present have truly realized the importance of mathematics in magic learning. As the field of research becomes more and more in-depth, magic will no longer be limited to what people can see and touch. Whether it is the changes in macroscopic nebula or the gathering and dispersion of microscopic atoms, these are extremely difficult to directly observe with general means, not to mention that some extreme situations that cannot be achieved by current means or even in the future are impossible to experiment. Abstract thinking and mathematical logic will gradually become the mainstream of mage research.

Perhaps this is just what Reiner said before, mathematicians are responsible for discovering formulas, while mages are responsible for finding meaning for them.

"Now it seems that Alberton's three laws of motion are more like the approximation of motion at low speed and macroscopicity described in the theory of relativity, at least in the movement of stars, and most things we can contact, these three laws still apply."

His Excellency Alberton sighed, and the emotions were complicated. I don’t know if it was because his lifelong efforts were proven to be not the truth, or if he was sighing that the current magic system based on this did not need to experience devastating earthquakes.

But this sentence was indeed a bit desolate and helpless when he said it.

Ludwig Stein was silent, but there was a huge storm in his heart.

In the two clouds hanging above the magic world, the problem of blackbody radiation finally guides people to re-understand light from a microscopic perspective, while the problem of ether drift leads the mages to redefine time and space from a macroscopic perspective. These two seemingly completely different areas of problems eventually point to the same thing.

Coupled with the proposal of a nuclear structural model, the huge movement of stars is linked to the small atomic motion, making people imagine infinitely.

"We are in a worst era, with the past thousand years of cognition falling apart, experience and common sense are broken, and if we don't pay attention, we will be far behind by the rapidly developing magic."

The stars and moon on the robe shone brightly, and Lord Lumia Calvados said softly.

"But we are also in the best era, where microscopic secrets can be explored, macroscopic truths can be traced, and the accumulation of thousands of years guides us to move towards the end of exploration."

Her words are also the voice of many people here. The mages are extremely uneasy, because any discovery may subvert past cognition and destroy the academic tower that has been forged for many years. But at the same time, the mages are extremely excited. Because of the dissipation of the two dark clouds, people have taken a major step in the microscopic and macroscopic fields. The mages are unprecedentedly close to the truth in their exploration, hoping to be close.

"It's just, Reiner."

Lord Pragues spoke, and he looked at Reiner, his wise sea-blue eyes reflected the handsome face of the young mage.

"The content of the theory of relativity is too impactful for intermediate mages, which is different from the battle between the fluctuation theory of light and the particle theory. After all, that war cannot be separated from the category of waves and particles in any case. The concept of space-time, scale shrinkage and time expansion in the theory of relativity, if it is not paved, it is very likely to lead to huge cognitive impacts, causing a large-scale cognitive collapse, and thus triggering a real academic earthquake."

What he said was exactly what Reiner considered. The subversion of the concept of space-time by relativity was not simply a step further, but a complete break and recombination. It was extremely dangerous for intermediate mages who did not understand thoroughly and did not conduct in-depth research in this field.

"So, although the Higher Parliament recognizes the correctness of the theory of relativity, my suggestion is that this theory and this paper are only circulated among advanced mages for the time being and will not be published in any public academic journals. When our theory is gradually improved, it will be opened to everyone step by step. What do you think?"

Your Excellency Pragues's opinion is very reasonable and no one expressed objection.

Reiner didn't care about these reputations. He now had only one idea, which was to perfect the third equation as soon as possible.
Chapter completed!