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Time Travel: It’s Been Done Before!

Can we really time travel? The easy answer is yes! That is correct. All of us have the ability to move forward in time, even if we are unaware. If you want to jump in the future, you can wake up a few hours after sleeping, right? Of course, this misleads the question. We want to be able to go back and repeat the stupid mistakes we made many years ago. Who doesn’t want to be able to talk back to himself at the age of 15? Tell them not to make the mistakes you made (or otherwise). Or you might want to travel 500 years ahead and see the flying car promised in 2000. Fortunately, time travel is theoretically possible. In fact, there are no laws in physics that prevent time travel. Yes, according to all the laws of physics we know, time travel is perfectly acceptable. But, as the saying goes, great responsibility comes with great responsibility. Time travel is a very dangerous endeavor with devastating consequences, and there are many paradoxes.
For example, what if you go back in time and avoid World War II? Sounds like a great idea. Countless lives have been saved and he is considered a hero! necessarily. He will save lives, but he will destroy others. What about all the technologies we depend on today, such as jet engines and nuclear power, that were developed during the war? In fact, world maps can be completely different. In fact, it can be worse than letting go. Visit:-https://vietnam-travel.vn/
Another well-known time travel paradox is the grandfather paradox. This means, for example, that you travel before your parents are born to prevent your grandfather from seeing your grandmother. I wouldn’t have been born because my parents couldn’t meet. So how can you go back in time to prevent your grandparents from meeting first?
Time travel turns out to be a bad idea, but let’s say you really want to go back in time. What should I do now. First, you need to understand how time works.
Time is something we all know very well. We all know what it is, yet we can’t see it, it seems we can never deal with it. We can only observe it. Isaac Newton believed that time was constant and never deviated. Of course, that would make time travel impossible. He believed that even Einstein was impossible, but it was his comparison that made it possible. Einstein theorized that space and time are mysteriously related to what he calls “space-time.” Theoretically, distorting space with something very powerful, like a black hole, is a waste of time. This seems to be true, and scientists are still investigating that possibility, but the real potential of time travel seems to lie in their other theories. The theory of relativity. In fact, time travel using the theory of relativity is more than just a theory. This has actually been done several times already! Now you probably think I’m crazy, but the secret seems to be going very fast.
According to Einstein’s general theory of relativity, a massive object cannot move faster than the speed of light at 299,792,458 meters per second in a vacuum (not air). It’s an incredible distance of 1.08 billion kilometers per hour! According to the general theory of relativity, we can only move at 99.99% of the speed of light. But let’s say I’m sitting behind an airplane, moving at the speed of light, and walking 10km from behind. I’ll leave a comparison of this, which means that my speed plus the speed of the plane is driving at 10 km / h and 10 km / h. This is 10 km / h faster than light, isn’t it? error. According to the theory of relativity, time is actually delayed to prevent it from moving faster than light. Sounds strange, doesn’t it? Of course, this scenario never really happens. As already mentioned, we cannot move above the speed of light. In fact, it takes more than an infinite amount of fuel to move faster than light, which is clearly impossible.
So what is the theory of relativity? Einstein’s theory of relativity basically says that if I’m driving on the road at 50km / h and someone is standing next to the road, I’m driving at 50km / h. I’m sure you know now. But for me in the car, I overtake me at 50km / h. But when someone is driving next to me in another car driving at 50 km / h, it looks like I’m completely stopped. Hard to believe? The same goes for the car next door appearing to float outside the window on the freeway. We’ll omit the complicated equations here, but you can confirm this theory using simple addition and subtraction. If you move in the same direction as the object you are observing, in this case the other cars will deduct your speed from their car. Therefore, 50 km / h minus 50 km / h is equal to 0 km / h. It looks like it’s stationary. If you move in the opposite direction, add speed. Therefore, 50 km / h plus 50 km / h is equivalent to 100 km / h. Therefore, if you overtake another car at the same speed in the opposite direction, it will appear to be driving at 100 km / h. So how does it all work, and more importantly, how could they travel over time? The faster we move, the slower the time seems to pass. This was proved when scientists placed an atomic clock (a very accurate clock up to one billionth of a second) on a spacecraft and observed its operation. Prior to launch, the clock was in perfect sync with another atomic clock on Earth, combining the two clocks as soon as the shuttle returned to Earth. Later, I discovered that the shuttle clock was slightly behind the ground clock. This means that the shuttle clock time is slower than the rest of the clocks on the planet.
Therefore, astronauts are also basically time travelers. Sergei Krikalev, the current record holder for the longest time in the universe (about 804 days or 2.2 years), is actually 0.5 seconds behind the rest of the world. In addition, scientists have calculated that if we have an orbit of 99.99% of the speed of light for seven years, we will reach Earth for the next 500 years. This effect is known as time extension. What a wonderful achievement! After all, time travel is really within our reach. The only problem is finding a machine or vehicle that can drive very fast. Unfortunately, this seems to be out of our reach for the time being. It takes full star power to reach speed.
But what about time travel? So far, general or special relativity does not allow time travel, and other laws of physics do not seem to allow travel to the past. As mentioned above, such a journey into the past will lead to a paradox that can lead to the collapse of the entire universe, or the formation of a completely new universe. It is part of the many-worlds interpretation of quantum theory. There are other theories that move back and forth in time, such as black holes and wormholes, but I’ll explain them in the future.

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