Everyone knows the principle of invariance of the speed of light and it is proven. The speed of all matter cannot exceed the speed of light, which is 299792.458 kilometers per second, or about 300,000 kilometers. If there is no other way, even if mankind could approach the speed of light, it would be almost impossible to leave the solar system for other galaxies, let alone leave the Milky Way. The universe is simply too vast. So the theory of wormholes began to be used in science fiction works.
So what is a wormhole?The concept of wormholes was first proposed by Austrian physicist, Ludwig Flem, in 1916.In 1930, Albert Einstein and Nathan Rosen hypothesized in their study of the equations of the gravitational field that it would be possible to do an instantaneous transfer of space or time travel through a wormhole. By traveling through a wormhole, you might go to another galaxy, another universe, or another space-time.
Human perception in the past was that the universe was eternal and not affected by any celestial body. But the general theory of relativity, proposed by Einstein, reversed this perception. He believed that the universe is composed of space and time, and that the universe is not a flat space-time. It is soft and flexible. Space-time can bend, tear, and fold, which makes the existence of wormholes possible. Wormholes are bridges that connect two distant places in space and time, and traveling through them allows you to instantly move to another place, or to the past and future.
So where is the wormhole? Nowadays, wormholes are frequently seen in all types of science fiction. General relativity postulates its existence, but no evidence of its real existence has yet been found.
Wormholes are also known as Einstein-Rosen bridges. It holds that a black hole is an entrance to another dimension, and a white hole on the other side of the black hole is the exit. No matter can escape the immense gravitational pull of the black hole, and matter is disintegrated into elementary particles at the singularity, which are then transported through the Einstein-Rosen Bridge to the white hole and radiated out. Humans simply cannot pass through black holes.
However, in 1963, New Zealand mathematician Roy Kerr's research found that massive stars that consumed large amounts of hydrogen fuel would collapse on themselves when they could not compete with their own gravity, and that the massive distortion of spacetime to form a black hole in them would become a dynamical black hole, and that in fact, the star would become a flat structure and would not form a singularity. In other words: the gravity field is not infinite. This leads us to the conclusion that if we launch an object or spacecraft into a rotating black hole along its axis of rotation, it might, in principle, be able to simmer through the gravity field at the center and enter the specular cosmic spacetime. In this way, the wormhole acts as a link between two space-time channels.
Einstein also believed that wormholes form in a moment and collapse in the next instant. With the development of science and technology, new research has found that the super-strong force field of wormholes can be neutralized by "negative mass" to stabilize the wormhole. In contrast to positive matter, which generates energy, antimatter also possesses negative mass. Like wormholes, "negative mass" was once thought to exist only in theory. However, many scientists have now proved that negative mass exists in the real world and have captured minute amounts of it in space via spacecraft. "The discovery of negative mass creates new opportunities to utilize wormholes.
Perhaps someday, when human civilization reaches a certain level, we will actually create artificial wormholes, like the one in the opening paragraph, and travel between the stars as easily as a subway.
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