Time seem as something that is independent, as something that cannot be stopped or turn back. “Absolutely, time passes by always in the same way and remains in its nature without any connection with the outside world”. With that sentence Sir Isaac Newton in 1687 formulated our understanding of the environment.
To meet your ancestors, to see dinosaurs or the witness important historical events, battles or birth of Jesus Christ? Will that be ever possible in the future? What would happen if someone killed their own father before he conceives offspring and change the course of history in a important way? From theory of relativity of Albert many scientists are thinking about time travel. And they reached to a incredible conclusion. According to laws of physics time travel is indeed possible.
If a ship moved rapidly around a BLACK HOLE it would experience half the time of people elsewhere. Light does not experience time.
09SPEED OF LIGHT
Which means if you accelerated to the speed of light you would not age, while everything around you did.
Hong Kong physicist claim that time travel is impossible. By failing to get a single photon to travel faster than light they argue Einstein´s limits must be followed.
A infinitely-ling, hypothetical cylinder 10x the SUN´S MASS. If spun to a few billion revolutions a minute, it could send a spaceship back in time.
Using focused gravitational fields on a vacuum in normal matter could bend space-time. Going round the hole would take you further back in time.
Predicted by the theory of general relativity would create tunnels in space-time. However, they would collapse very quickly and only be suitable for small particles.
Oxford scientist claim parallel universes exist. The UNIVERSE splitting constantly is seen as a way to combat the problems of time-travel paradoxes.
Theoretical matter with negative mass and energy density, that curves space – time in the opposite way to normal matter. It could be used to create wormholes.
A theory about narrow tubes of energy stretching across the Universe, containing huge mass, if two approached each other it could bend space – time around them.
Some believe that quantum mechanics prevents change in the timeline. This means if you went back in time you wouldn’t be able to change anything that would affect the future.