In our impression, the speed of light is the limit of the world, the speed of 300,000 kilometers per second, which is the goal pursued by mankind and an indicator of future interplanetary navigation. Humans are currently not even reaching 20% of it. Strive to strive for this goal, and even many people believe that reaching the speed of light, human beings can open the voyage of conquering the universe.

Along with the modern science's understanding of the universe, we find a very cruel reality, that is, the so-called limit speed of light in our eyes. It is a little brother to the universe. We have countless limit speeds of light, it is only for humans. A dream in terms of it, but it is insignificant for the universe, as scientists have described: the speed of light is disappointing in the universe.

First, we analyze the speed of light from the scale of the universe. Don't think it can circle the earth 7 times a second, but once it enters the grand scope of the universe, it begins to become slow, taking the distance between the earth and the sun. It takes about 16 minutes for the light to travel back and forth. Compared with the speed of the table tennis net on the earth, the light is really poor.

In addition, we have scaled up to the scale of the Milky Way. The Milky Way has a diameter of 100,000 light-years. That is to say, even if it reaches the speed of light, it takes 100,000 years to cross the Milky Way. This is a long time, and it has already included human wise men. The evolutionary history of modern humans.

If you want to go deeper into the universe, the universe has 92 billion light years, and it takes at least 92 billion years to run at the speed of light in the universe. This does not include the resistance encountered. This is a long time, even the whole time. The earth's 4.6 billion years of growth experience, there is no way to compare with him, it is estimated that humans have already turned into ashes.

In addition, from the phenomenon of the universe, the speed of light is indeed the slowest speed. There are phenomena observed and speculated by scientists. There are at least three kinds of existence in the universe, and its speed far exceeds the speed of light.

The first one is the expansion speed of the universe. The powerful and ultimate driving force after the big bang in the beginning of the year made us all in the aftermath of the cosmic explosion. Its theory of expansion speed is the creation level, the speed of light. Dozens of times more than a trace of light from the earth, it does not want to catch up with the end of the universe.

The second one is the mysterious fast child world. This chopstick world is a kind of relative existence proposed in the field of modern physics. It is a kind of conjecture independent of the material world. In the mysterious fast child world, its energy The greater the speed, the slower it is. When the energy approaches zero, its speed reaches its limit, but its lowest point is that the highest point of energy is exactly equal to the speed of light, so the speed of light is the slowest in that world. Speed, like a snail.

The third is the gravitational world. There are many powerful and extreme celestial bodies in the universe. These celestial bodies have extremely large masses and have terrible gravitational forces, such as black holes. Scientists speculate that there is a vast and extreme black hole in the center of the Milky Way. Its gravitational force can not only distort the space, but even the speed of light can't get rid of its gravitational restraint. The speed of light is just a little brother in front of it.

Therefore, in our impression, the speed of light is almost the same as the ordinary phenomenon in the universe. Perhaps it makes human beings full of fantasy, but in the face of the universe, it is really worthless. The gap between human beings and the universe is still Very big, we must work hard to develop in the future. When we reach a certain level, we may find that the speed of light is so slow and slow to disappoint.