..

The process of moving the four-dimensional "sphere" on the axis, from the perspective of the xy-z space "surface world", is the process of expansion and compression of the three-dimensional sphere.

Suppose the XY-Z three-dimensional space is understood as the "table world".

The three-dimensional space formed perpendicular to the axis is the corresponding inner world.

The "inner world" of one-dimensional space is two points on the y-axis that move downward when a circle passes through.

The "inner world" of two-dimensional space is a circular pattern in which xz and yz move downward when the sphere passes through.

The "inner world" of three-dimensional space is the process of moving the spheres of xy, yz, and xz space downward when the four-dimensional "sphere" passes through.

It is important to note that in these three different spaces, the volume of the sphere is constant....

But in the eyes of three-dimensional creatures, it is the expansion and compression process of dots → spheres → points.

The evolution of the Taiji diagram can be roughly understood in this way.

Three-dimensional the Taiji diagram, regard the white circle above as a white ball, and the black circle below as a black ball. Similarly, on the back of the Taiji diagram, there are also two such balls, which are represented by the "fish eyes" of the yin and yang fish, and are composed of a total of 4 balls.

This is a four-dimensional sphere made up of four three-dimensional spheres.

The starting point of their motion is the same pole in the four-dimensional space, but it moves in four mutually perpendicular directions, which is the general representation of the four-dimensional sphere in the three-dimensional space.

It still looks complicated, just like two-dimensional beings can't understand the concrete substance, and the mass that the substance itself has.

Xiao Hao put it another way, or his opinion, and made some conjectures about it.

Whether it is "matter" or "mass", in the eyes of two-dimensional beings, it is an abstract concept, and it is impossible to truly understand the essence of matter, nor can it be touched.

It's like we can't really understand and touch "kinetic energy" and "energy".

We know what matter means, but for two-dimensional beings, it's all abstract because they have never seen or touched matter.

However, as three-dimensional creatures, we can touch the abstract concept of two-dimensional creatures - matter.

And use "quality" to measure matter.

From this, if we deduce four-dimensional beings...

For them, can they touch the "kinetic energy" and measure how many joules the "kinetic energy" has?

For four-dimensional beings, is "kinetic energy" something that can be touched?

Three-dimensional organisms can touch "quality", and whether four-dimensional beings can touch "energy".

Xiao Hao used to have a doubt when he was studying physics.

In other words, a physical phenomenon in daily life, he always can't figure it out.

The formula is quite simple, v=t.

But here, there's a catch.

This acceleration has always been artificially added, or it is provided by other energies.

But does the transmission of kinetic energy, without human interference and other energy interference, really rely on acceleration?

If not artificial, but a simple collision of two objects to change the kinetic energy...

Just like playing billiards, the white ball hits the black ball, the kinetic energy of the white ball is instantly gone, and the kinetic energy is instantly transferred to the black ball.

Why is the kinetic energy generated at the moment of this collision transmitted so quickly?

v = t, when t is infinitely close to 0, shouldn't v also be nearly equal to 0?

Obviously, the acceleration that billiards can rise cannot be close to infinity, right?

It is true that their kinetic energy transfer relies on collisions, but are there other different physical phenomena that lead to this result?

"Collision" is a type of "contact".

It takes time to "contact" the transfer of heat energy, the transfer of electrical energy, etc.

In fact, we can understand that both thermal energy and electrical energy are some different forms of kinetic energy of particles in the microscopic field...

Micro field "kinetic energy" ()... co

..

It takes time, so why is it almost not needed at the macro level?

In the eyes of high-dimensional beings, is "kinetic energy" also like "matter", which can be touched and transferred?

Assuming that a plane is fixed, pick up an object that covers this plane and then re-cover it on other coordinates of this plane, then the object is "teleported" for a two-dimensional being.

It's an incomprehensible phenomenon for two-dimensional beings, and it's too esoteric to understand.

So...

Kinetic energy, is it the same?

Suppose a two-dimensional creature can exert force on an object, knocking it into the air, and the object falls on other plane coordinates in a very short time...

In the two-dimensional plane, this object also achieves an incredible phenomenon of "teleportation".

And Xiao Hao now understands this mysterious "power" that belongs to three-dimensional creatures.

Attacking a three-dimensional object through force actually interferes with the four-dimensional "matter" associated with it, or in other words, the "kinetic energy" that the four-dimensional creature can touch.

Xiao Hao's target should not be "three-dimensional matter", but "four-dimensional kinetic energy"!

Only by taking this "four-dimensional kinetic energy" as the target of the attack can the "teleportation" of kinetic energy be achieved instantly!

In other words, the transfer of kinetic energy is achieved through "contact".

The wisdom of the ancients is really terrifying, perhaps the ancients have already comprehended a certain martial arts conception, so there are words such as "picking leaves and flying flowers" and "internal force".

There are thousands of kinds of matter, and perhaps for four-dimensional beings, there are many kinds of "kinetic energy".

Do even the four fundamental forces of the universe constitute the living space of four-dimensional beings?

We stand on the surface of the earth, breathing in the fresh air, which is the state of life of three-dimensional creatures.

For four-dimensional creatures, whether they stand on a variety of different "force fields", such as electric fields, magnetic fields, and the like.

Mass is a physical property possessed by an object, a measure of the magnitude of the inertia of a substance, and it is a positive scalar quantity.

Energy, in Xiao Hao's understanding, is quite similar to the concept of mass, but matter can be contacted, so there seems to be a big difference between the two.

In fact, mass and energy can be transformed into each other.

In general, both mass and energy are positive.

In some special cases, there may be negative matter and negative energy.

Are negative matter and dark matter related?

Are there any correlation between negative energy and dark energy?

Of course, there must be differences between these concepts, and if there is no difference, why are the names of the concepts different.

But...

Remember the "inner world" of the previous three-dimensional space?

The "inner world" of three-dimensional space is the process of moving the spheres of xy, yz, and xz space downward when the four-dimensional "sphere" passes through.

Three-dimensional creatures are hard to spot, but they can always be faintly noticed.

Does this inner world correspond to "negative matter", "dark matter" and "antimatter"?

Since we are three-dimensional creatures, we can only perceive xy, yz, and xz spaces, which are also three-dimensional spaces.

Even if they were able to detect or perceive such things, in fact, these would still not be the true appearance of the four-dimensional "spheres".

Suppose we can "see" what the four-dimensional "sphere" really looks like...

Can we achieve the "teleportation" of kinetic energy through contact? ... co