Reiner soon understands that he is in the middle of a lake of heart.

The reason for this is that Reiner himself could hardly imagine what he would see when he reached the speed of light, because the surrounding scene only changed color like the film was white, and there was no theoretical shrinkage effect.

Reiner sat in his "office" when suddenly, everything around him poured into Reiner's chest like a tidal wave.

Reiner is like a whirlpool, absorbing the whole world.

When he came to his senses, he was already above his heart lake.

Feeling the irrepressible agitation in his chest, Reiner knew that now was the time.

The sparkling lake gradually rippled, and the entire lake began to flood, flooding the surrounding land and spreading out into the boundless distance.

In just a few tens of seconds, the originally calm heart lake has become a choppy sea!

The feedback from the world is so overwhelming.

Reiner knew that this was just the tip of the iceberg of the nature of light, but the feedback it had brought was more than the sum of all Reiner's previous theories combined.

He had the feeling that he was about to explode, that the wild primordial magic was colliding, blending, and digesting Reiner's own power.

With Reiner's existing reserves, he couldn't digest such a huge amount of magic at all!

He needs to create new spells!

For a moment, Reiner felt something in his heart and looked up at the sky.

In the deep black and turbid clouds, thunder and lightning flashed, and a low roar was like the roar of a dragon, which shocked people's hearts.

The shining stars were obscured by dark clouds, and the whole world was pitch black.

Crackle –

A bolt of lightning fell from the clouds, pointing straight for Reiner's location.

This is thunder, it is energy, it is destruction, it is new life.

Reiner raised his hand, and the lightning instantly deflected, striking the sea, and the thunder snaked through the water, spreading in all directions.

At the same time, in Reiner's vision, the lightning contained extremely high energy was thus transmitted into the sea, and this energy caused the molecules to be scattered, the elements to reunite, and some kind of hope to be born from the ocean.

A ball of light appeared next to Reiner, and it was a calculation circle that was running at high speed.

Reiner has come up with two formulas, which are the shrinkage effect and the time dilation effect produced by length and time in high-speed motion.

But he has a third formula.

At this moment, Reiner saw a point of light streaked across the sky.

The speed of this point of light is getting faster and faster, gradually approaching the speed of light.

Kelena could sense that the speed of this point of light was becoming more and more difficult to increase.

In order to make the speed of the point of light faster, Reiner provided more and more energy to it, but the speed of the point of light was always difficult to increase.

"Where does all this energy go?"

Reiner asks a question.

The kinetic energy of the point of light is obviously provided by Reiner's magic, the greater the energy, the faster the speed, but at this time, the point of light is fixed at the speed of light, even if you increase the energy, you can't increase the speed, so where does the energy provided to the point of light go?

A formula emerged from Reiner's side.

E=mv^2。

This is a simple formula for kinetic energy, which means that the kinetic energy of a point of light should be equal to the product of its mass and the square of its velocity, which is derived from the motion theory of Lord Alberton, and has been verified in various fields.

In the current situation, where the energy of the object increases, but the speed does not change, and the energy does not disappear out of thin air, then it seems that there is only one answer.

That's the quality increases!

But why does the quality increase!?

In the minds of the mages, mass is the basic property of an object, and as long as the object does not undergo special changes, the mass will not change, but now, the energy carried by the object moving at high speed increases, and the speed does not change, and it seems that only the increase in mass can explain this phenomenon.

"Energy, converted into mass!"

Reiner thought for a moment and spoke.

Buzz –

For a moment, Reiner could feel the extremely high mass contained in that point of light, and as the energy increased, its mass increased in tandem.

In Reiner's mind, countless images flashed.

It was the first time I used magic, and my fingertips lit up with flames, which were flames transformed from magic power, and their essence was the burning of hydrogen and oxygen.

He thought of the question of mana efficiency that he had been pondering for a long time but could not answer, and even after learning the memories from the previous era, Reiner could not explain the question of why magic had such a low utilization of mana, and where such a large amount of mana had been lost.

Now he has an explanation.

When magic is converted from pure energy to the material needed to cast a spell, the huge amount of energy can only be converted into a small mass, which is not the inefficiency of magic, but the law itself!

The calculation circle beside Reiner suddenly burst into light, and a formula composed of countless rays of light appeared in front of Reiner.

This was the formula for everything he had just experienced, calculated and obtained.

This formula explains how energy is converted into mass.

E=mc^2。

When an object moves close to the speed of light, the energy gained will be converted into its own mass, which is the energy divided by the square of the speed of light!

This formula embodies the idea that mass and energy can be transformed into each other, and that mass is a manifestation of energy, and that mass and energy are not absolute, they are not independent of each other, but are closely related.

An object still has energy when it is at rest, and when it is in motion, the energy of an object is equal to the sum of its energy at rest and kinetic energy.

Matter is the aggregate of energy!

As if a lightning bolt crossed his mind, Reiner saw that in the dark clouds of the entire sky, thousands of lightning bolts fell into the sea, forming a terrifying and spectacular scene, and the thunder that resounded through the clouds and the angry waves of the sea formed a symphony, as if celebrating the birth of this formula.

Reiner raised a hand, and the points of light converged, forming a constellation of extremely complex changes.

With little time to think, Reiner completed the construction of the spell.

It all seemed to come naturally.

He could feel that although he had deduced the equation for the conversion of mass and energy, the feedback he received was not strong because it was only a paper calculation, so instead of using the mass-energy equation as the basis for the magic, Reiner created an eight-ring spell based on time dilation and the shrinkage effect.

The complex constellations melted into Reiner's chest, and he felt something in his heart, and in the sky, the devastating thunder fell again, and in the sea, the terrifying waves that swallowed everything rose high.

Reiner stepped forward, and from his side, a ripple spread out, instantly spreading to the entire world.

The world suddenly froze.