Statements about 4 dimensional space. How to interpret 4 dimensional space

Answer 1: We humans are three-dimensional creatures, and we are in a four-dimensional space (i.e., x (length), y (width), z (height), and t (time axis).

Answer 2: You are right, the properties of space are not necessarily determined by the dimensionality of space, one dimension is a straight line. Plus the time dimension is a two-dimensional space (in my opinion).

A3: No, you think: If a creature is in a one-dimensional space, and there is a two-dimensional creature walking in a straight line with it, the one-dimensional creature will see.

Similarly, two-dimensional creatures (such as ants) can be seen behind three-dimensional creatures. On the other hand, when a person reaches the top of the steps, the ants will not be visible. If you look up or climb, you can see people.

In fact, a two-dimensional creature only sees a part of the three-dimensional creature, and if you add the concept of z (high), then it becomes a veritable three-dimensional creature.

Lines are one-dimensional, and parameters are points.

The surface is two-dimensional, and the parameter is a line.

The volume is three-dimensional, and the parameter is the surface.

By analogy, the space composed of body parameters is a four-dimensional space, which is usually understood as time, and you can see a similar statement in many books.

Then the space composed of time parameters should be a five-dimensional space, and we humans can only perceive four-dimensional.

Discover a pattern:

One-dimensional things are capable of accommodating so-called zero-dimensional (straight lines are made up of points).

Two-dimensional things can accommodate one-dimensional (you can draw a straight line on paper).

Three-dimensional things can accommodate two-dimensional (a piece of paper in a box).

After learning quantum mechanics, learn to think less and be ruthless.

The four-dimensional space is explained as follows:It is also known as "four-dimensional space-time", "space-time continuum", etc. A totality made up of three-dimensional space and time.

This concept was proposed by the German mathematician and physicist Minkowski, so it is also called "Minkowski space". Any matter always exists in space and time at the same time, and space and time are inseparable. To determine any physical event, three spatial coordinates (x,y,z) and one temporal coordinate (t) must be used simultaneously.

Four-dimensional space featuresDimensions, also known as dimensions, are the number of independent parameters in mathematics and the number of independent space-time coordinates in physics. Dimensions don't have to be positive integers. In the 19th century, mathematicians discovered fractals and created a fractional dimension.

In fractal geometry, the dimensions of many objects are not integers, but fractions.

Although the curve is a one-dimensional figure, the curve can only be embedded in the two-dimensional space and the three-dimensional space. Although a surface is a two-dimensional figure, it can only be embedded in three-dimensional space. In this case, if the stool is only in the fractional dimension, the surface should be a geometry between dimensions 2 and 3.

The four-dimensional space has 4 spatial dimensions. In three-dimensional space, taking Cartesian space Cartesian coordinate system as an example, the position of a point needs three coordinates of xyz to describe.

Superstring Theory and Ten-Dimensional Space.

This is a theory that scientists have long proposed.

But when it comes to it, no one knows what they're doing.

But I have an understanding of multidimensional space that I would like to share with you.

Note the following plus [..].Several paragraphs are put forward by existing popular science works, and will be used as a factual basis for the time being).

The light travels the shortest distance, which means that it always travels in a straight line.

In our daily life, it is clear that it must be a straight line.

However, in space observations, light rays are distorted, and the reason for this distortion is that gravity, the weakest of the four fundamental forces (strong, weak, electromagnetic, and gravitational), plays a huge role in space

But we can now dismiss gravity as a force, and the reason for the distortion of light is the distortion of space caused by mass, and the distortion of space distorts natural light].

But this space distortion appears to be curved in three-dimensional space, indicating that the light rays not only did not travel the shortest distance, but instead curved. However, in the four-dimensional space, that is, time is combined with space as one dimension, and the distorted space becomes a plane again, and the light in the space is still a straight line from the perspective of the four-dimensional space. ]

Not only do light rays travel in a straight line in four-dimensional space, but the orbits of those celestial bodies and the elliptical orbits of planets and stars also travel in a straight line in four-dimensional space, because they are all affected by gravity and change their orbits, that is to say they travel the shortest distance on the plane of space distortion (if gravity is now completely changed to space distortion, the inertia theorem is too useful)].

Thus, one of the products of the theory of dimensional space is that light is always in a straight line.

Inside celestial bodies such as black holes, another phenomenon occurs, where gravity surpasses all forces to become the maximum force, and at the singularity (most center) position, the gravitational force is infinite, the mass is infinite, and the degree of spatial distortion is infinite, creating something like a void, and at close to a few points, the light rays do not go in a straight line even under the theory of four-dimensional space].

Later, there was a five-dimensional space, which was used to compensate for the failure of some physical theorems, and this space considered a parameter (the five-dimensional space was seen in an unknown book, which book said that it was the result of a certain force anomaly, so a parameter was added), and the result was that the light rays traveled in a straight line in that place

And at the place where it is closer to the singularity, the five-dimensional space is not enough, and the theorems of physics continue to fail, so scientists have the superstring theory and the ten-dimensional space theory].

Let's take a bold assumption that light rays are distorted by spatial distortion caused by various reasons, and that gravity is taken into account to create a four-dimensional space, and a factor is considered to become five-dimensional.

The physical formulas at the singularity are all invalid, and at this time, it may be that n factors cause the distortion of light, and these factors are taken as one dimension, and the straight path makes the light go in a straight line, and it becomes an n-dimensional space.

The fourth dimension is not space, but time.

According to scientists, the four-dimensional space is an infinite superposition of three-dimensional space, and with the composition of time, the other four-dimensional creatures will know all their own trajectories, and the superstring theory says that the world is made up of 10-dimensional space plus time, and the seven dimensions are curled up on the Planck microscopic scale, and if you enter the four-dimensional space, you will be like a Klein bottle.

Three-dimensional space plus time is called four-dimensional space, which is the space where we live.