Is the speed of light the fastest in the universe? In fact, it’s as slow as a turtle

In ancient times, people could only live within a very limited scope, and they could only sigh for the more distant places. Therefore, in ancient times, people in the East did not know the existence of Westerners, and Westerners also did not know the existence of Orientals. However, with the development of science and technology, the earth has become a global village. Distance is no longer a problem. We can travel all over the world in a very short time.

The reason why there is such a huge difference is that the speed of transportation is constantly improving. As we all know, in ancient times, there were no advanced means of transportation. People basically went out by walking, and the fastest means of transportation was just a carriage. Theoretically speaking, we can walk all over the world in our lifetime, but in reality, no one can.

The reason is that in addition to land, there are more vast oceans in the world, and many parts of the land are not walkable, such as deserts. Therefore, the ancients knew very little about the world. The main reason was that the speed of transportation was not good. After the era of science and technology, the continuous updating of transportation tools, especially the emergence of airplanes, makes people’s dream of traveling all over the world come true.

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With the continuous improvement of speed, human beings are no longer satisfied with the global village and begin to move forward to the starry sky beyond the earth. When we really go out of the earth and see the vast universe, we will know how small the earth is. It is not even a grain of dust in front of the cosmic scale. At this time, the dream of mankind has changed from going all over the earth to going all over the universe. I believe that everyone expects to be able to freely traverse the universe and go to every corner of the universe to have a look.

But to achieve this wish, we need a faster speed, which is faster than our imagination. However, later Einstein’s theory of relativity appeared, which put a shackle on speed, that is, speed can’t be increased infinitely. It has a limit value, that is the speed of light. The speed of light seems incredible to us.

The average distance between the sun and the earth is 149.6 million kilometers, and light can reach the earth in 8.3 minutes. So how fast does light travel? It’s 300000 kilometers per second, 300000 kilometers per second, what an amazing speed. You should know that the speed of Juno Jupiter probe, the fastest spacecraft of human beings, is only 265000 km / h, which is only 73.6 km / s when converted into second speed. Compared with the speed of light, it is pitifully slow.

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So is the speed of light the fastest in the universe? If it is the fastest speed in the universe, then human beings have no hope to explore the universe. The reason is that at this speed we can’t even get out of the galaxy, let alone the universe. You know, under the influence of the speed of light, there is a distance unit of light years, which refers to the distance that light travels at the speed of light in a year.

Light year is the basic distance unit to measure the universe. Under this distance scale standard, scientists found that the diameter of the solar system, including the Oort cloud, has reached 2 light years. The Milky way is about 100000 light-years in diameter, and Andromeda is about 2.2 million light-years away from earth. At present, the observable range of the universe is about 93 billion light-years.

Exploring the universe at the speed of light takes us two years to get out of the solar system, 100000 years to cross the Milky way and 2.2 million years to reach Andromeda. It will take 93 billion years to complete the human observable range in a straight line. Seeing these amazing data, I believe we all know that it is impossible for us to realize our dream of exploring the universe by flying at the speed of light.

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So is the speed of light really the fastest in the universe? The answer is No. in fact, standing outside the existing physical system of human beings, the speed of light is indeed the limit of speed. Because scientists have carried out a variety of experiments, the fastest speed of particles can only reach 99.9999%, which is a little less than the speed of light, let alone breaking through the speed of light.

But when we stand in front of the scale of the vast universe, we understand that the speed of light is actually very slow, as slow as a turtle. Through a large number of observations of the universe, scientists have also found that superluminal phenomena exist in the universe. For example, in the vicinity of black holes and neutron stars, we can sometimes observe the superluminal motion of some particles.

The most powerful superluminal phenomenon in the universe is the expansion of the universe. I believe many people know that the universe has been expanding rapidly since the day of the big bang, and the expansion speed is far faster than the speed of light. We should know that the universe from the big bang to now is about 13.8 billion years. If the expansion speed is the speed of light, then the scope of the universe now is 13.8 billion light years.

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However, the observable range of human beings has reached 93 billion light-years, from which we can see that the expansion speed of the universe exceeds the speed of light. What’s more, the 93 billion light-year range that humans can observe is probably just the tip of the iceberg in the vast universe. The discovery that the expansion speed of the universe is far faster than the speed of light gives scientists the hope of exploring the universe.

Existence is reasonable. Since the superluminal phenomenon exists in the universe, it shows that the speed of light is not unbreakable. Through research, scientists believe that whether it is the superluminal phenomenon near black holes, neutron stars or the expansion of the universe, they all have one thing in common, that is, the distortion of space.

It is the distortion of space-time in the sky near black holes and neutron stars that makes particles move faster than the speed of light. The expansion of the universe is a large-scale space distortion phenomenon. Therefore, as long as we can master the technology of space distortion, it is possible to make the speed of the spacecraft exceed the speed of light, so as to realize the dream of traveling all over the universe.

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This kind of space warped superluminal flight is still only a theoretical guess. In some science fiction novels, it is called space jump or wormhole shuttle. In the real world, Einstein once proposed the conjecture of black holes and wormholes. At present, the existence of black holes has been confirmed, but wormholes have not been observed.

If wormholes can be found in the universe in the future, then the human dream of interstellar exploration will open, and the distance of the universe will no longer be a problem at that time. We can quickly travel all over the galaxy, all over the galaxy of the universe, even to the edge of the universe. If the multi cosmology theory is correct, maybe we can also enter other space-time through wormhole. We are looking forward to this day.

Guys, what do you think of this? Welcome to leave a message below to discuss and express your opinions.

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