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Space. In Chinese, Yu represents all space, and Zhou represents all time, so the word "universe" has the meaning of "all time and space". The universe refers to space, and the universe refers to time, and the universe is the unity of space and time.
The universe is made up of matter, which is in constant motion and moves according to certain laws.
Cosmos: The mainstream view in modern cosmology is that the origin of the universe originated from a single large, evolved from a state of extremely dense and extremely high temperature in the past, and reached a state through continuous expansion, which is called the grand theory of the universe or the grand theory of singularity. We don't know what caused this big **.
The light emitted by the big ** is still spreading outward. The resulting gases and clouds, dancing, spinning, and aggregating into embryonic galaxies.
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The universe has a boundary, and everything that has a center has a boundary. The boundary of the universe is close to the void, the whole universe is an abstract circle, and time exists like a ring wave, and the time of each band is different. There is no cosmic synchronization of time.
Emptiness is no time, no space, no matter. The universe was created from the void. The universe is divided into matter, and antimatter, which can also be called dark matter, and matter will disappear into dark matter.
The entire universe will gradually move from existence to nothingness, re-entering the state of emptiness.
The Void not only produces cosmic calls, but also multiverse interlacing. and non-universe and non-universe, non-universe and multiplicity, but the final set is non-universe.
However, after the universe and the non-universe are intertwined, it is possible to realize an eternal multiverse because matter and antimatter cannot be combined. But this eternity is only many times more than the cosmic time, and there is no such thing as a true eternity.
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Space refers to the space beyond the Earth's atmosphere.
In December 1959, the United Nations established the Peaceful Uses of Foreign Affairs.
Outer Space Committee to explore the peaceful uses of outer space.
Implementation Measures. In January 1967, the United States, the Soviet Union and other countries signed the "Concerning Countries.
The exploration and use of space includes the Moon and other celestial bodies.
Treaty of Principle to be Observed", which provides for outer space countermeasures.
All countries should promote and encourage international cooperation in scientific research.
Make. If you come to a wilderness with no light pollution, Yang.
Looking at the starry sky, you may feel how crowded it is.
Universe. However, the universe is actually very empty. We can even.
Believe that the universe is almost empty. Let's start with the microcosm.
The world begins. What makes up the world around us and our own is.
Atom. We know that atoms are small. If you put one.
The sub is magnified to the size of a glass ball.
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The space of the universe is very large, so big that it is beyond human imagination, and the universe is infinitely large.
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Opening and closing eyes, hearing and sniffing, exhaling and inhaling, touching and stepping on your hands and feet are all cosmic space.
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It is true that the universe is infinite, and the astronomical community believes that the universe is actually a closed sphere, but it appears to us as a straight line. The moment of the birth of the universe as the center of the universe seems to be very attractive, but there is no going back to the past, which is obviously irrefutable now, and if you consider the bending of time as the cause of gravity entirely, or even think that it is possible to go back in time, then it is worth considering.
And you can't explain whether the curved dimension of space is really the time dimension, because the curved space must also occur in the space dimension, not in the time dimension (it will not be the past and the future for you to shuttle), so you don't have a foothold in the beginning. Three-dimensional space should be bent in higher latitudes, that is, "hyperspace", and we cannot feel hyperspace because we are not hyperspace creatures.
Three-dimensional space can be disassembled into two or two perpendicular planes, if each of them is bent, then there will be 3 more latitudes, this is the dimension of hyperspace, if you add the dimension of time, then there are a total of 7 dimensions, so the discussion of the curvature of space-time is actually discussed from this height. It doesn't make sense for you to explain the bending of 3 dimensions in terms of time in 1 dimension.
The bending of space will make the surrounding objects approach the source of gravity, so it gives us the feeling of gravitational force, and it is precisely because of the bending of space that the light passing in the gravitational field is bent, and when the gravitational field is so strong that the bending of light is so strong that it cannot return to the outer universe at all, a black hole is created.
And in your imagination, the speed of time is related to the concavity of space-time, which is true, but the problem is that you seem to regard time as a length, how much time to concave to stop, you don't say it explicitly, and whether this is comparable with the long river of cosmic time of tens of billions of years is also a big question, if the radius of this ball is 10 billion years, then how to concave enough? And you should have no objection to the fact that black holes with different masses have different depths, but the problem is that this contradicts your ideas. Moreover, if you enter a black hole, you will definitely die.
Then he talks about the increase in the mass of an object due to velocity, which is really just different measurements of the same thing in different frames of reference, which has little to do with space-time.
With the spaceship one, all I can say is that it's really just a fantasy with no scientific basis.
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The question could be called 'science fiction', where you can let your imagination run wild.
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Some scientists have put forward the idea that the universe is like bubbles in boiling water, and each bubble is a universe, and there are bubbles in bubbles, and bubbles keep getting bigger and disappearing, and bubbles will touch and disappear, and we will touch and disappear or intersect, and we are on the bubble membrane, and in fact, the universe has 11 dimensions.
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If one day you strayed into a multidimensional space, and afterwards you described your strange feelings to other humans incoherently, you should be considered insane.
The "two-dimensional worm" who lives on a piece of paper is thrown out of the paper one day, and the witnesses are shocked by the same kind and himself, oh my God! What exactly happened, so wonderful. But they can't put it into account with what they already know.
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In the case that Einstein's theory of relativity has not been overturned for the time being, it is theoretically possible to travel back to the past or fly to the future at the speed of light, and it is impossible for any object in our real universe to achieve faster than the speed of light. The formula e=mc2 has revealed that only a matter as close to massless as a photon can travel at the speed of light.
Both the past and the future are relative, and both going back to the past and coming to the future must be based on the actual time of a certain point. So when you arrive at the past and the future of another place relative to the past or future of the place you started from, when you can (note that you can only because you will most likely not go back to the original starting point) find that the time it took to travel back and forth in time is the same as observed by your starting point.
However, objects possess mass and cannot move at the speed of light. According to Einstein's famous equation, as you move faster and faster, the mass of an object increases.
As the speed of movement approaches the speed of light, the mass of the object will become infinite.
A speck of dust will have an infinite mass when it travels at the speed of light, and at this moment, infinite energy is needed to make this particle move at a speed close to the speed of light.
Therefore, if human beings want to do this, they are nothing more than self-defeating.
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If you run after the light, space-time will be distorted, and time will stop when the speed of light is reached, and if the speed of light is exceeded, a wormhole will appear in space-time, and the distance will not exist.
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The space environment of the universe is very harsh compared with the near-Earth space environment in which human beings live. Here is an example of the cosmic space of the solar system.
First of all, there is the ultra-high vacuum.
However, there is still an interstellar gas composed of hydrogen atoms and hydrogen molecules per cubic centimeter.
Secondly, there are extreme temperatures.
Direct exposure to sunlight can produce extremely high temperatures, where the sun shines brightly; With your back to the sun, you can be as low as absolute zero, where it's pitch black. The high vacuum, extremely high and low temperatures of space place high demands on the design and materials of spacecraft.
Third, there is cosmic ray radiation and various high-energy charged particles and plasma.
Except for the high-energy charged particles of galactic cosmic rays, which have little impact on the spacecraft due to their low flux, they also have a significant impact on the orbit, attitude, surface material, internal devices and potential of the spacecraft. Most of these radiations, high-energy charged particles, and isoplasmic bodies are related to the sun and solar activities, such as solar electromagnetic radiation, including electromagnetic radiation from extremely short wavelength rays, X-rays, ultraviolet rays, visible light (blue, blue, green, yellow, orange, red) to long-wave infrared rays and radio waves; In the photosphere of the sun, sunspot activity is periodically generated, emitting high-energy particles outward, which poses a great threat to space activities. In the chromosphere of the sun, flares often occur near the sunspot group, which can release 10 30 10 33 ergs of energy, equivalent to 10 billion megaton hydrogen bombs**, producing a large number of ultraviolet rays, X-rays, rays and high-energy charged particles, which pose a huge threat to space activities; In the coronal layer of the Sun, coronal holes are often created, which, like the nozzles of a jet engine, continuously eject high-temperature magnetized ions outward, which are most intense when sunspots are active and flares erupt, and these charged particles form a strong solar wind. Finally, there are micrometeoroids in the solar system that endanger space activities.
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The universe and space are two completely different relationships, first: there are many, many things in the whole universe (such as: the earth, the moon, the sun, and many, many more: stars, galaxies, dark matter. )
Second: "space" We now live in one space, but not only one space, and the so-called space can be said to include the entire universe. The universe is also in a "space", and this space is something we can't see or touch.
You try to think about it.
Disclaimer: Personal opinion.
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Not necessarily, why is the universe not monistic and not pluralistic? So how do you explain the problems of time, time and space, and more Witz, why is there an eleven-dimensional universe theory? Your thinking is philosophical thinking, although it can guide scientific theories, but if there is no realistic scientific theoretical basis, it is easy to fall into empty and meaningless pure philosophical fantasies
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Want to know such a professional question, go and see the world in Hawking's shell.
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It makes sense, first, the answer to your question is that the universe is the result of the surplus of space and time, space is a part of the universe, equivalent to 2*2=4, your question is equivalent to what is 2 in 4, this is to understand the relationship between space and time, the universe exists in every time period, and it is also equivalent to a page in a book, space * time = matter * motion.
Second, you are the title party, the content is very deep, I also read it for a long time to understand, what I said is that you can't compare the relationship between the axis and the galaxy, no one can understand it, and gravity and negative matter You are also very different, you can think in terms of the positive energy and negative energy of matter interaction.
Third, look at the theory of two flies and see how much you can understand.
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A continuum corresponding to time.
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The space beyond the Earth's atmosphere is also known as "outer space", and the height at which a country's airspace extends upwards has always had different opinions. In December 1959, the United Nations established the Committee on the Peaceful Uses of Outer Space to explore ways to implement the peaceful uses of outer space. In January 1967, the United States, the Soviet Union, and other countries signed the Treaty on the Principles to be Observed by All Countries in the Exploration and Use of Space, Including the Moon and Other Celestial Bodies, stipulating that outer space should be open to all countries, that all countries should have the freedom to engage in scientific research, and that all countries should promote and encourage international cooperation in such research.
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A singular point is a one-dimensional space, a line is a two-dimensional space, a line-forming diagram is a three-dimensional space, and a graph is a four-dimensional space, which is what we see now.
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Infinite and incoherent spaces are scattered together and are cosmic spaces ...
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