Is time travel feasible? If you look at the earth from 2242 light years away, can you see the flourishing age of Qin and Han Dynasties?

Scientists believe that if the wormhole can be found, it is likely that interstellar crossing will be realized. In the cognition of scientists, time can only pass forward, not backward. From a scientific point of view, can we see the flourishing age of Qin and Han Dynasties thousands of years ago without changing the retrogression of time?

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The flourishing age of Qin and Han Dynasties is a thing of the past. If we can’t change the time, it’s more difficult to see the past. Although scientists have put forward the wormhole theory, at present, scientists have not found wormholes in the universe, so wormholes can only stay at the theoretical level. And with the current scientific and technological means of human beings, there are still many obstacles to realize wormholes crossing. Of course, we need not be discouraged. Although we can’t use wormholes to witness the flourishing age of Qin and Han Dynasties, we can pass through the wormholes Another way to achieve.

The universe is endless. In our opinion, there are a lot of particles and dust in the universe. In fact, in addition to these dust, there are a lot of light in the universe. In the universe, light is not only a particle but also a wave, so we can also regard light as a bunch of energy, which can exist forever in the universe. Unless the light is affected by other celestial bodies, it will travel through the universe all the time. The cosmic background microwave radiation is the light left by the big bang. I didn’t expect that it crossed time and space, and its traces can still be found in the universe.

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Can we see the flourishing age of Qin and Han Dynasties?

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The speed of light is the limit of the speed of the universe, but the speed is also delayed. When we see an object, we must have light to see it. When the sun shines on the earth from the surface of the sun, it will span 150 million kilometers, so it will take 8 minutes and 20 seconds to reach the earth. Therefore, the sun we see is the sun eight minutes ago. If there was an explosion or an asteroid collision in the universe at that time, it would have happened eight minutes ago.

Therefore, scientists believe that if the light reflected in the prosperous period of Qin and Han Dynasties entered the universe and was not absorbed by other celestial bodies or materials, then the light would continue to run. If human beings can overcome the problems of distance and power, and go to a place 2242 light years away from the earth, we can theoretically see the flourishing age of Qin and Han Dynasties more than 2000 years ago.

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Of course, this idea is feasible in theory, but there are many difficulties in its implementation. It can’t be realized with the current scientific and technological means of human beings. Maybe only in the future, when human beings can realize the first-class civilization, we can expect to see the flourishing age of Qin and Han Dynasties thousands of years ago. I don’t know what you think?

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