The geometric space of the universe, the universe is a multidimensional space

There are various multidimensional spaces in mathematics, but so far, the physical world we know is only four-dimensional, that is, three-dimensional space plus one-dimensional time. The high-dimensional space mentioned in modern microscopic physics is another meaning, which has only mathematical significance, and will not be discussed here.

Four-dimensional space-time is the lowest dimension that constitutes the real world, and our world happens to be four-dimensional, and as for the high-dimensional real space, at least for now, we can't perceive it. I mentioned an example in a post where a ruler rotates in three-dimensional space (without time), its length does not change, but when it rotates, its coordinate values change, and the coordinates are related to each other. The meaning of four-dimensional space-time is that time is the fourth-dimensional coordinates, which is related to spatial coordinates, that is to say, space-time is a unified and inseparable whole, and they are a kind of "one eliminates the other" relationship.

The four-dimensional space-time is not limited to this, from the relationship between mass and energy, mass and energy are actually the same thing, mass (or energy) is not independent, but related to the state of motion, such as the greater the velocity, the greater the mass. In four-dimensional space-time, mass (or energy) is actually the fourth-dimensional component of four-dimensional momentum, and momentum is the quantity that describes the motion of matter, so it is natural that mass is related to the state of motion. In the four-dimensional space-time, momentum and energy are unified, which is called the energy-momentum four vectors.

In addition, in the four-dimensional space-time, the four-dimensional velocity, the four-dimensional acceleration, the four-dimensional force, and the four-dimensional form of the electromagnetic field equation system are also defined. It is worth mentioning that the four-dimensional form of the electromagnetic field equation system is more perfect, completely unifying electricity and magnetism, and the electric and magnetic fields are described by a unified electromagnetic field tensor. The physical laws of four-dimensional space-time are much more perfect than the three-dimensional laws, which shows that our world is indeed four-dimensional.

It can be said that at least it is much more perfect than Newtonian mechanics. At least because of its perfection, we can't doubt it.

In the theory of relativity, time and space constitute an inseparable whole - four-dimensional space-time, and energy and momentum also constitute an inseparable whole - four-dimensional momentum. This suggests that there may be a deep connection between some seemingly unrelated quantities in nature. In the future discussion of general relativity, we will also see that there is a deep connection between space-time and the four vectors of energy momentum.

Scientists have envisioned the geometry of the universe as spherical, saddle-shaped, hyperboloid, and planar. Calculated from the observed results, the geometry of the universe is a planar model.

Einstein on Earth can't solve it, so what do we care about him.

However, personal estimates are 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

Billions, billions, billions, billions.

Keep exploring, keep discovering.

Whether the universe is a multidimensional space is still uncertain. What people can feel is a three-dimensional space, which is a time axis added to the structure of the space compared to the three axes of length, width and height of ordinary three-dimensional space, and this time axis is an imaginary value axis. There are now 11 dimensions of space as we know.

Now scientists believe that the entire universe is 11 dimensions, but human understanding can only understand 3 dimensions. The world we see with our own eyes Three-dimensional space is the space where the position of a point is determined by three coordinates. The objectively existing real space is three-dimensional space, with three measures: length, width, and height.

The concept of multi-dimensional space introduced in mathematics, physics and other disciplines is a scientific abstraction based on three-dimensional space. Moreover, modern physics believes that there are 7 dimensions that we cannot see.

The first three dimensions are the position, which exists in space;

The fourth dimension is velocity, which exists in time;

The fifth and sixth dimensions are velocity pointing, which exists in the (velocity) time direction;

The seventh and eighth dimensions are state directions, which exist in the spatial direction corresponding to their shapes;

The ninth dimension is the state corner, which exists in the roll corresponding to its shape;

The tenth dimension is the spin rate, which exists in the rolling time;

The eleventh and twelfth dimensions are the spin equatorial axis pointing and exist in the rolling (velocity) time direction;

The thirteenth is the spin equatorial axis pointing drift rate, which exists in the temporal direction of rolling change (acceleration rate);

The 15th and 5th dimensions are the direction of the spin equatorial axis pointing to the equatorial plane of the drift velocity, which exists in the time direction of rolling change (acceleration).

The sixteenth dimension is the acceleration rate (or force intensity), and the seventeenth and eighteenth dimensions are the acceleration (or force) direction, which is still a purely geometrical dimension, belonging to the category of multivariate geometry, that is, dimensionality, such a dimension is not only related to position (representing the position of a geometric point in space).

In the actual world of physical nature, the situation is much more complicated: the object of mental consciousness (logarithmic dimension) under investigation can be integrated into the world to form a perspective; It is also impossible to be completely free of size, and therefore possible to move in the magnification (exponential dimension) of the world: to form a zoom and zoom of the world; Even all systems can be particle-based, motion-based 、......Therefore, the dimensions of physics can also include temperature, density, velocity, 、......And so on and so forth.

Refer to the new multi-angle definition of multi-dimensional space, high-dimensional space, and 18-dimensional space for them.

Counting that the three-dimensional universe is composed of 11 dimensions, the mainstream string theory is proposed, and based on this, please take a look at the string theory or M theory, pure hand play, watchtower!

String theory holds that the universe is 11 dimensions, and although there are still many contradictions between string theory and quantum mechanics, it is still the most reliable one for other theories.

"Universe" is space, "Universe" is time, and according to this literal meaning, it is four-dimensional.

"Universe" is space, "Universe" is time, and according to this literal meaning, it is four-dimensional. Spatial three-dimensional plus temporal one-dimensional.

The universe is a five-dimensional space of the solar system, the Milky Way, and the cosmic celestial element (the largest atomic nucleus).

Boundless! The universe is infinite, and it can be said that galaxies are infinite, which means that there are no specific numbers of planets.

The universe is not a multidimensional space, the universe is a general term for the vast space and the various celestial bodies and diffuse matter that exist in it. The origin of the universe is an extremely complex issue. The universe is the material world, which is in constant motion and development.

For thousands of years, scientists have been searching for when and how the universe came to be.

Many scientists believe that the universe was formed by a big ** that occurred about 13.7 billion years ago. The matter and energy in the universe are gathered together, and condensed into a very small volume, the temperature is extremely high, the density is extremely high, and the huge pressure is generated in an instant, and then a big explosion occurs, and the reaction principle of the big ** is called quantum physics by physicists.

The big ** caused the matter to be scattered, the cosmic space continued to expand, and the temperature also dropped accordingly, and then all the galaxies, stars, planets and even life in the universe were born one after another.

Conjectures about the universe.

1. Time and space are both absolute concepts and are the basic properties of existence. The connotation of "time" is endless and eternal; The connotation of "space" is unbounded and eternal.

2. The positive universe is full of positive matter, and the anti-universe is full of antimatter. Correspondingly, the space in the positive universe is called positive space, and the space in the anti-universe is called antispace. The velocity of light in a vacuum in positive space is the upper limit of velocity, while the speed of light in antispace is the lower limit.

3. Dimensional space (parallel universe). It is said that the universe is made up of many, many dimensions, and the so-called "dimension" refers to the pages of a book.

Fourth- and fifth-dimensional space. A space where time is one-dimensional, hierarchical and traditional three-dimensional space is unified. The five-dimensional space is the basic property of the existence of anything in the universe.

5. Warped space (wormhole) Warped space is the space experienced during the transformation of time and space, and teleportation can be carried out in this space.

6. High-dimensional space. According to the M theory proposed in the 90s, the universe is 11 dimensions and is made up of a vibrating plane. For Einstein, the universe is only four-dimensional (three-dimensional space and one-dimensional time), and some scientists believe that there is a high-dimensional space that cannot be perceived by humans.

The universe is 11 dimensions According to the M theory (a type of superstring theory) proposed in the 90s, the universe is 11 dimensions and is made up of a vibrating plane. For Albert Einstein, the universe is only 4 dimensions (3 dimensions of space and 1 dimension of time), and modern physics believes that there are 7 dimensions of space that we cannot see. How do scientists explain the difference between the dimensions we already know and those that may exist but are not?

They made an analogy: an ant walks on a piece of paper, and it can only walk right or left, forward or backward. Neither high nor low means to it, which means that the third dimension of space exists, but it is not recognized by ants.

In the same way, our world is made up of 4 dimensions (3 spatial dimensions, 1 temporal dimension), but we are not aware of all the other dimensions. According to physicists, there should also be 7 dimensions. Although there are so many dimensions, these dimensions are invisible, they are wrapped up in each other and are called compressed dimensions.

To clarify this view, let's take the example of the ant in our imagination. We can imagine rolling up the piece of paper on which the ant walks until it forms a cylindrical shape. If an ant walks along the wall of paper, it will eventually return to the starting point, which is an example of a compressed dimension.

The above phenomenon also occurs if you can walk along the famous Mebius, of course, it is 3 dimensions, but if you walk along it, you will always return to the starting point. The Mebius belt is compressed from the perspective of dimensions, according to physics, it has three dimensions, but whoever walks on it can only recognize one dimension of people. It's a bit like the guy on the left:

Up or down, but never to the end. If the ant does not walk along the curved wall of the paper tube, it will never return to its original starting point. This is the example of 2 dimensions (or the kind of dimension that we perceive), and if we follow it all the way, it is impossible to return to the original starting point.

Einstein believed that the universe is four-dimensional, and the recent rise of line theory, etc., classifies the universe into 11 or 26 dimensions, these are only mathematical or theoretical, there is no conclusive evidence, even if there is us, we can't perceive it, we can only observe it in a concise way.

Speculation based on calculations from the cosmic string theory.

Our universe should have at least 10 dimensions.

Including the familiar three-dimensional space, the fourth dimension of time, and the other six dimensions curl up in every point of our universe in extremely tiny geometric shapes.

These are still being studied, and some scientists even believe that more than 10 dimensions have not yet been discovered except for the four dimensions that we often say, and the other dimensions have not yet been discovered, so they should not have names.

It's all just speculation, and it's enough to understand the three dimensions, and the rest is just to understand, after all, I think that this thing will be as smart as a scientist.