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If spaceships were fast enough, would humanity be able to see the future? It can be said that it can be seen or notIf the speed of the spaceship has exceeded the speed of light, then mankind's understanding of the universe will become quite easy, and mankind can explore the second "earth", so that mankind has inexhaustible resources, which should be the future of human dreams. And to say that it can't be seen, this is from a physical point of view, as far as human cognition is concerned, the speed of light is the fastest, and if the human spaceship can exceed the speed of light, then human beings can see the past, but they can never see the future, after all, the future has never happened.
According to Einstein's theory of relativity, time slows down when an object moves at sub-light speeds. Therefore, the statement that an object moves at the speed of light is still in time, and then it is further inferred that when an object moves at a faster speed than the speed of light, it can travel through time and space and go back in time. Therefore, according to the logic of relativity, we can only experience the past, but not the future.
As for this logic, there is a well-known twin paradox: there are twin brothers, one of whom boards a spacecraft for a long-distance space trip close to the speed of light, and the other remains on Earth. As a result, when the traveler returns to Earth, humanity discovers that he is younger than his brother who remained on Earth.
But the above is for the physical point of view, but from the perspective of the future, if human spaceships can exceed the speed of light, then human immortality should not be a problemWhen that day comes, the mysteries of the universe will gradually be explored by human beings, and human beings will also understand the true meaning of the universe, so as to better transform and improve human beings, so that human beings can become eternal beings in the universe. <>
If the spaceship is fast enough, can humanity see the future? Obviously, there is no single answer, it just depends on the perspective.
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Theoretically, it is possible as long as you can travel faster than the speed of light, but the current technology cannot reach it.
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OK. If the speed is fast enough to send humanity to the edge of the universe, the future can be seen.
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According to the theory of relativity, it should be possible, but it is difficult to achieve.
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First cosmic velocity: An object escapes gravity and orbits the Earth.
The second cosmic velocity: the object completely gets rid of gravity and realizes the motion around the sun, which is the highest speed at the current level of science and technology.
Third cosmic velocity: , the object flies out of the solar system and shuttles within the Milky Way.
Fourth cosmic velocity: 110-120 km s, the speed at which an object gets out of a banking system.
Fifth cosmic velocity: 1500-2300 km s, the speed at which an object gets out of its own galaxy cluster.
Sixth cosmic velocity: 2000000-3500000km s, the object gets rid of the local supercluster and realizes the shuttle within the Laniakea supercluster.
Seventh cosmic velocity: approximately, the object gets rid of the Laniakea supercluster.
Eighth cosmic velocity: approximately, the speed at which an object shuttles through a supercluster complex.
Ninth Cosmic Velocity: The speed at which an object travels through the Sloane Wall has not yet been confirmed.
Tenth cosmic velocity: The speed at which an object travels through a large cluster of giant quasars.
Eleventh cosmic velocity: The speed at which an object travels through the Hercules-Colora Buraris Wall.
Twelfth cosmic velocity: The speed at which an object travels through the universe in this space.
The thirteenth cosmic velocity: Objects get rid of the local space universe and shuttle between the local space universe and parallel universes, realizing the space and time cosmic travel.
The fourteenth cosmic velocity: Objects get rid of the cosmic group and realize free travel in the Dharma Realm.
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The fastest speed is 39,897 kilometers per hour First, theoretically speaking, it is impossible to exceed the speed of light, because light is an electromagnetic wave.
(Even if you sit on one beam of light and move from south to north, and another person sits on another beam of light and moves from north to south, the two of you will find that your relative speed is still the speed of light, and only the person standing on the ground will see that you are diverging at the speed of light at 2 speeds), which may be difficult to understand but in theory. Second, if you exceed the speed of light, time will not turn back, but you can see the past because when you exceed the speed of light you can rush in front of the light, for example: if you finish your breakfast on Vega and make a faster-than-light spaceship.
Arrive on Earth in a second, and in 27 years, you will see the scene of you eating breakfast at Vega 27 years ago. Third, there is a theory that the earth year is calculated by the earth's orbit of the stars, and the cosmic year is calculated by the rotation of the universe in one circle.
But the time of cosmic space and the calculation of the earth are the same. The first cosmic velocity is kilometre-seconds, so that it can fly around orbit, the second cosmic velocity is kilo-seconds, and the third cosmic velocity is kilo-seconds, so that objects in the solar system can fly out of the solar system and get rid of the earth's gravitational pull when they reach the velocity of kilometre-seconds. In the process of getting rid of the shackles of the earth, under the action of the earth's gravity, it does not fly away from the earth in a straight line, but in a parabola.
Flight. After breaking away from the Earth's gravitational pull, it orbits the Sun under the action of the Sun's gravitational pull. To escape the gravitational pull of the Sun and fly out of the solar system, an object must move at a speed of 1,000 seconds. At that time it will be pressed hyperbola.
The trajectory flies away from the Earth, and it will fly away from the Sun in a parabola relative to the Sun. Human space activities are not just about escaping the earth. In particular, the current application spacecraft needs to fly around the Earth, that is, let the spacecraft move in a circle.
We know that there must always be one with centrifugal force.
Forces of equal magnitude and opposite directions act on the spacecraft. Here, we can take advantage of the gravitational pull of the Earth. This is because the gravitational pull of the earth on an object is exactly in the opposite direction of the centrifugal force in which the object moves in a curvilinear motion.
It has been calculated that when the speed of motion of an object on the ground reaches a kilometer second, the centrifugal force generated by it is equal to the gravitational pull of the earth on it. This velocity is known as the orbital velocity. The speed at which the object moves in a circle around the earth is called the first cosmic velocity; The speed at which the earth flies away from the gravitational pull of the earth is called the second cosmic velocity; The speed at which the sun is free from the gravitational pull of the sun and flies out of the solar system is called the third cosmic velocity.
According to the law of gravitation.
The magnitude of the gravitational force between two objects is inversely proportional to the square of their distance. Therefore, the distance of an object from the center of the earth is different, and its orbital velocity (first cosmic velocity) and separation velocity (second cosmic velocity) have different values. The first cosmic velocity is kilometre-second, so that it can fly around orbit, the second cosmic velocity is kilometre-second, which can rush out of the earth, and the third cosmic velocity is kilometre-second, so that it can fly out of the solar system.
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Clause. The cosmic velocities of the first, second, and third are , respectively
For an object on Earth to break away from the Earth's gravitational pull and become an artificial planet orbiting the Sun, the minimum velocity required is the second cosmic velocity, which is about kilometers and seconds, which is twice the velocity of the first cosmic velocity. A ground object can detach itself from the Earth in a parabolic orbit when it gains such velocity.
The third cosmic velocity is the minimum velocity at which objects on Earth fly out of the solar system relative to the center of the earth, and the magnitude of the third cosmic velocity is about kilometers and seconds. Objects on the ground can fly away from the earth in a hyperbolic orbit after gaining this speed when they make full use of the earth's rotational speed
When it reaches 930,000 kilometers from the center of the earth, it is considered to have broken away from the earth's gravity, and then it moves under the gravitational pull of the sun. The object orbits in a parabola relative to the Sun and eventually leaves the solar system out of the Sun's gravitational field.
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In our country since ancient times there is a saying, called a mountain and a mountain high, the strong in their own strong hands, here we can also use to describe the universe, the universe is so big, I don't know what to describe, in the past, we thought that the earth was very big, even the eastern hemisphere to the western hemisphere took half a day, and then we had a faster plane, from London to Beijing, but a few hours to arrive.
From the time we started exploring, we thought the solar system was big enough for us to explore for a long time, and we thought that Uranus was the edge of the solar system, but as we got deeper and deeper, we realized that there was Neptune, the Kuiper Belt and the Oort Nebula beyond Uranus. It would take 2 light-years to travel through the solar system, which is very far away for us, and it may take us hundreds of years to travel through the solar system, but the outer Milky Way is much larger.
The Milky Way is so big, reaching 100,000 light-years, enough to make the solar system feel like no place in it, if flying out of the solar system is our ultimate goal, then it is obviously a wrong idea, flying out of the solar system, we still have the Milky Way, but when we fly out of the solar system, we may be able to take advantage of the situation to step into the second-level civilization, but flying out of the galaxy will become our second goal.
And what about beyond the Milky Way? What do we have? Apparently a large galaxy like the Milky Way, with a galaxy cluster above it, and a supercluster on top of it, and countless galaxy clusters that make up the universe.
As you can imagine, even the Milky Way, which is 100,000 light-years in diameter, is insignificant in the universe. So do we have a chance to travel through the universe?
The idea sounds ridiculous, but it's something everyone wants to do. So with the current development of mankind, can we do it? Scientists put forward a view on this, if we understand the universe, we know that from the birth of the universe to the present, there is a popular saying, that is, the universe is constantly growing, maybe the universe in our eyes is 93 billion light years now, but it is actually the universe 93 billion years ago, and the universe at this time may have become larger again, and the speed of growth far exceeds our development speed, so it may become a delusion to cross the speed.
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The universe is really hard for us to imagine, in fact, this is a lot of confusion brought to us by the level, our scope of existence is on the earth, always think of the distant place, this is the cross-border or out of bounds, just because we and the galaxy are two levels, we can't use our concepts and thinking on the earth to imagine how the matter and celestial bodies in this level develop and move. First of all, we must know that this is a cyclic system, and galaxies are just a celestial structure in the process of continuous replication, and each galaxy is a process from condensation to decomposition to complete the transformation process of this part of the matter. In space, every substance is developed, and it is through the horizontal development process of each level that brings about the development process of the structure, it is the development of the structure that brings about the development of the material in the structure, and the development of the material in the structure brings about the vertical development of the material in the structure, and the horizontal development process from the substance to the structure and a hierarchical circulation system are formed in the material in the structure.
We can't know how many levels there are outside of us, but each level has each level of basic matter, and each level has the development process of each level of matter and structure, although the levels are different, the materials are different, and the structure is different, each level is from the condensation of matter, the reproduction of matter to form the development stage of matter, and the development process of matter from condensation, replication to decomposition to form a structure. In the process of vertical development of the level, although each level is developed by the material within the structure, the material is embodied in each structure through the cohesion in the horizontal development process of each level, the larger the structure, the smaller the structure of the matter, and the structure of the material may be the largest when it develops to us, and it can be seen from this point that the vertical development of the level is also limited. We have also seen that although the vertical development of the hierarchy is developing a structure that is getting smaller and smaller, only in this way can we move from the instinct of matter to the intelligence of the structure, and from microorganisms to intelligent organisms and today's us within our level.
Today's human beings have too little understanding of matter, especially in space, each celestial body is actually a substance or a class of matter, just like galaxies are a class of matter, from condensation to decomposition is only a link in the transformation of matter in a circular system. A cyclic system is composed of the development and circulation of matter from condensation to decomposition and from decomposition to condensation of various celestial bodies, the development process of each structure, and the development process of matter in each celestial structure.
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In the time controlled by human beings, there is no concept of time lapse, immortality, never die, and now our scientific knowledge is only the frog at the bottom of the well, the floor, the square and the earth, the geocentric theory, the heliocentric theory, just like the flight dream of human beings hundreds of years ago. Walk across the single-plank bridge and use the science of our global village to define the science of the universe.
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