Time travel is the act of traveling into the future or past. It is the action of moving from different points in time, even though time travel is something considered science fiction, there are many aspects in science that prove it possible. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an Original Essay To understand time travel you should first understand time. For some physicists, time seems to be the fourth dimension of reality. Time cannot go backwards according to the functioning of thermodynamics. The second law of thermodynamics states that since the world is a closed system, the constancy of time remains the same or increases. Time also varies depending on the speed in space according to Albert Einstein. Einstein's theory of relativity states that "time slows down or speeds up depending on how fast you are moving relative to something else." An example of this would be how when astronauts go into space they age slower than all people on earth because in space time is different. This theory is called Time Dilation and is considered a form of time travel for astronauts. One way to officially travel in time would be to go faster than the speed of light in a vacuum. But it has been proven that this is completely impossible from the mathematical point of view, but some scientists have expanded Einstein's equation and said that it could be possible with small particles. Another possibility would be to create a wormhole for travel. Wormholes are holes that you travel through to get to a different part of the universe. With Einstein's equations it is shown that there could be wormholes that travel in time but no scientist has ever observed any. Sir Isaac Newton thought that all time was the same, an example would be that one second on Earth would be the same as one second on Mars. He believed that all the clocks in the world ticked at the same speed. But Einstein did not follow this rule, he saw time as a river, but instead of the river flowing through different parts of rocks, he explained how time traveled differently around galaxies. Each part of a river has a different speed and for him time was the same thing. In different parts of the galaxy time would flow at a different speed than in other placesKurt Gödel found a solution to one of Einstein's equations that allowed time travel. A “river of time” mixed with vortices could allow time to coil and create a time machine. Anyone walking in the direction of temporal rotation would be able to return to the starting point, that is, back in time. Einstein didn't like the fact that his equations allowed time travel. In the end Gödel's solution was complete because the universe does not rotate but actually expands. Then in 1963 another mathematician found a solution to Einstein's equations also named Roy Kerr, because this time it was a rotating black hole instead of a whirlpool rotating black hole. The black hole would evolve into a rotating circle. The ring's circulation would become so rapid that the force would prevent it from falling due to gravity. These apparent “black holes” can be used as time machines and can be used to travel to different parts of the universe. Many other solutions have been found to use wormholes/black holes to travel at different times in the universe, but none of them have been scientifically proven. Recently, they tried to present the scientific theory of gravity by giving the United States of America some information in a problem.,.