We get this possibility to travel back in our history from the Harry Potter movies. To most people, it is an idea that refers to the domain of fiction and, it seemed to them to be no way to go back. Traveling back in time can be possible after all because of some very impressive properties of time and space in Einstein’s General Relativity.
It all starts with the real idea of a wormhole. On this universe, there are small, microscopic quantum variations in the texture of 4D-space. It includes energy variations in positive and negative directions where the positive energy fluctuation would arc space in one specific form and, anti-positive energy fluctuation would create a curved space in a completely different way. A particle can be transferred likely through a lasting wormhole, allowing it to disappear immediately from one spot in spacetime and appear in another.
There should be a way for humans also to travel back if someone faced an unfavorable situation in Harare while getting tickets to harare. This thing is possible but, it’s going to take a lot of work surely. Every particle in our universe has positive/negative mass and energy. If this negative type of magnitude or strength exists, then supernova can be created. When these two objects are connected, they allow the instant travel through space. Traveling close to the speed of light lets people experience an event called time dilation.
Due to time dilation, a person might reach a destination only in one year, then come back to Earth in just another year. But, 82 years would have passed back on Earth. It is the general way time travel physically works. The whole story changes if we focus on constructing a wormhole just likedescribed above. Visualizing one side of wormhole remains close to immobile, while other end moves closer to the speed of light. Then, you enter the fast-moving end of wormhole after its been in the movement for a year.
A year is not same for everyone if they are moving through space and time in a different order. Depending on the speeds, the in-motion end of the wormhole would have aged 40 years, but the at-rest end would only have aged by one year.
There are so many extraordinary things in the universe which become possible if negative energy is real, controllable, and plentiful, but traveling into the past might be the excited one anybody has ever imagined. People can go back to the time when they were making Flights to Harare and make anything right which went wrong. Owing to the peculiarities of both special and general relativity, moving back into the past might not be opposed after all.
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