More than a hundred years ago, Einstein proposed the theory of relativity, which brought us a brand new view of space and time.
The theory of relativity is undoubtedly great, and it still guides the scientific community to move forward until today. But the theory of relativity seems to make us feel desperate again, why do you say that?
There is an important concept in special relativity: the speed limit of light. The speed of light is the limit of the speed of the universe, and the speed of any object cannot exceed the speed of light.
The speed of light, 300,000 kilometers per second, at It's too fast for us. But once it rises to the height of the universe, in the vast space, the speed of light is too slow, almost as slow as a snail.
For example, even at the speed of light, it takes 1 year to fly out of the solar system, 4.3 years to reach the closest star to the sun, Proxima Centauri, and it takes 100,000 years!
Is the speed of light really completely limiting the speed of human flight?
That's not the case, nature has not closed all the gates of superluminal speed, but left a window for human beings. We can use certain "loopholes" to achieve FTL.
Einstein's general theory of relativity shows that space-time is not absolutely constant, it is very elastic, we can pull it, twist it, or even tear it apart.
Through the plasticity of the space-time structure, you can fly faster than the speed of light. This method is actually the "warp drive" technology described in many science fiction novels.
Creating "warp bubbles" in space ", that is, the space-time bubble, and then by shrinking the space-time in front of the space-time bubble, while extending the space-time behind, so as to realize super-light speed flight, and the spaceship is relatively static in the space-time bubble.
This super-light method does not violate Einstein's special theory of relativity, but the space-time itself is moving at super-light speed, and the spacecraft is relatively static in the space-time bubble. Space-time does not transmit any information in the process of moving faster than the speed of light.
In fact, the movement of time and space faster than the speed of light has been going on. Our universe has been expanding since its birth, and the expansion speed is far beyond the speed of light. The process of moving.
Warp drive technology can allow humans to fly at speeds dozens of times the speed of light or even faster.
There is another method faster than warp drive technology More convenient, that is the wormhole. Using the plasticity of the space-time structure, directly drilling holes in space-time, you can instantly span the vast interstellar distance. This is similar to the subway built by humans, directly drilling holes in the ground, you can reach the place you want faster. The place to go.
However, whether it is Qu Both high-speed engines and wormhole technology require a lot of energy to maintain, and the other side of energy is mass, which has gravity, and greater mass means greater gravity. If gravity is too large, it may collapse into a black hole. This is why both ends of the wormhole usually collapse into black holes very quickly, and we don't have time to travel through the wormhole at all.
In any case, warp drive and wormholes are theoretically feasible, It's just that human technology has not yet reached that level!