(In fact, I deliberately broke the continuity. In fact, one might say what is the need for these colliders where there is a food crisis around the world. Some of the answers may be found in these theoretical posts! We can't see, but we can see the future generations left behind!)
There is a word in Bengali that says selfish, a person very close to me used to call this word 'selfish'. Of course, when he said that with a sweet smile on his face, it seemed that what he said was correct. Hopefully!
H. G. Wells wrote a story book, The Time Machine, in 1895. At the time, it was widely regarded as a fiction, and many had the hapless 'if it were', where we were busy eating British loaves. A few days later, a clerk named Einstein made some changes in physics and became the father of physics of this era. But he showed that it is impossible for us to walk at the speed of light. The research did not stop there. The main thing in time machine research is facts and their reactions. If we lean towards the unified theorem of nature, this time travel concept hits there, like the eternity formula of energy. There is, of course, another thing that strikes, many old sayings: "Nature does not like emptiness."
Is it easy to make a time machine?
Some of these polite words do not work. For example, many of us may be familiar with time dilation. Two twin brothers Ram and Sam. Sam was found to have got a job at NASA and within a few days he was picked up in a cracking spaceship and sent to a nearby star. His spaceship began to move at an unimaginable speed due to the lack of a gravitational ball, gave a twist to the star and then returned to Earth where Ram was later at home serving the family. Let's assume for Sam that it took 1 year to make his total journey but 10 years have already passed on Earth. In that case Ram Vaizhan has become a 9 year older brother than him. In fact, Sam came to earth after 1 year and is looking at the world after 9 years, so he has already done a short time travel.
Some real examples: Out of our senses
But in reality we are always acknowledging such a situation. If we were to fly at the speed of an aircraft, we would not be able to grasp the matter so well because the amount of time dilation is then like a few nanoseconds. But if we go to measure it more accurately with an atomic clock, we can see that the time has been pulled a little by the speed or the time has been stretched a little longer! Then it is clear from the incident that in the near future we are always doing time travel which is beyond our senses. Thousands of such tests can be found on the internet.
If we go a little further to observe this flattening or curvature of time, we think at the subatomic level that can basically be rotated at speeds very close to the light (the atomic amount of the collider matter sapper may have been given in a previous post). One of these particles is the muon. Particles of a very distinctive nature because it basically works like a built-in clock because its decay is at a specific half-life (1.52 microseconds and after its decay muon = electron + electron antineutrino + muon neutrino). According to Einstein's formula, the rate of decay decreases when this muon accelerates again inside the collider. This inconsistency of time is seen in the case of some cosmic rays. As the particles of this ray moved closer to the speed of light, from their point of view they crossed a galaxy in a matter of minutes, although the Earth seemed to have traveled more than 10,000 times (this is also according to Einstein's and Lorenz's formulas). Without time dilation, these particles would never have touched the earth.
Some of Einstein's words
Let's talk again about Einstein's relativity: According to this source, a clerk named Einstein said that gravity slows down time. This means that the clock moves a little faster on the 10th floor from the ground floor (?) Which is a little closer to the center of the earth so it is a little closer to the gravitational force. However, I will never be able to feel it in you, no atomic or seismic clock (sadly, I have never seen these clocks, I do not read the clock because of the mobile). But one thing we understand is that those who use GPS every day. If that weren't for the sailors, the cruise missiles would have flown a few more miles to reach their destination.
Let me give you another complex example: let's say that everyone has an idea about the density of neutrons and also need to know about its gravity (details can be given in another post if there is any curiosity). As can be seen, time there is 30% percent slower than Earth time. If one of those stars peeks into the world with a telescope, it can be seen that everyone is running like a fast forward of a video cassette. A black hole is also something that if one can read in singularity then one can get a clear idea about the ideal time dilation for him.
Others think: It is possible to go to the past!
In 1948, Kurt Godel solved Einstein's gravitational equation by showing that it actually represented a revolving universe (although I could not figure out how he meant it, but it was a great find if it was accurate). According to this theory, an astronaut can travel back to his past. This is because of the way gravity will affect the speed of light. However, there was a lot of adulteration in this solution, first of all according to this theory then the Big Bang and the singularity were beaten.
Another scenario is that Frank Tipler of the University of Tulane in 1974 discovered that a giant cylinder of infinite length rotates at the speed of light on its own axis, in which case an astronaut can go back to his past because of the same phenomenon: Brought into a closed loop. Again in 1991 a man named Richard Gott predicted that the cosmic string could produce the same result (cosmologists suspect that it was formed in the early stages of the Big Bang). But the concept of wormholes in the mid-eighties brought a new dimension.
A wormhole is a hypo which is also called a stargate and is a shortcut road between two points located at the longest distance. If someone makes a leap through a wormhole, he might find himself on the other end of the universe. Wormholes fit the general theory of relativity where gravity can land or twist not only time but also space. This theory gives the idea of an alternative road and tunnel that basically serves as the connection between those two points of space. A wormhole can be a short distance from the real road!
Now let's assume it's possible to navigate through a wormhole (one of the main things here is that if I go for a walk, maybe I'll be so tall that my body will grow to 5.8 feet 30 feet and I don't know what will happen to my soul because at that time I will not have any growth or feeling), of course Thorne's exotic matter will still exist. According to quantum mechanics, exotic matter has a negative mass and in gravity it is repelled instead of being attracted. And its presence is necessary for the stability of a wormhole because through it an antigravity force will work and prevent an explosion which will then turn it into a black hole. This exotic matter cannot be explained by the physics we know (hence the hypo!), But this negative energy state exists in certain quantum systems, but it is still unclear how much antigravity particles are needed to stabilize a wormhole!
But Thorne and his colleagues later realized that if a stable wormhole could be built, it could act as a time machine.
Stabilizer Wormhole: At the door of the time machine
If we want to get a wormhole, then one of its faces will be drawn towards a neutron star and its location will be towards its surface. They will slow down the time of gravity so that the time interval between the two mouths of the wormhole gradually increases. If both faces are kept in place, this time interval will be stuck there!
Suppose that time interval is 10 years. An astronaut jumped to one side through that wormhole which is basically the future 10 years later and if another astronaut jumps to the other side it will reach 10 years back. So it turns out that a close loop of the same number can turn into a synchronous loop in the same way. There will be only one restriction when the wormhole was first made and the astronaut will never return.
In other words, wormholes can be formed naturally on a very small scale, such as in Planck's Lenhe, which can be compared to a molecular nucleus. In theory, such a one-minute wormhole is stabilized by energy pulses and then somehow returns to normal!
The paradox
Now let's talk about some paradox, which is basically the best question for these time machine theorists! Suppose after solving these engineering problems we were able to make a time machine, then it was seen that a bad guy went in the past and killed his daughter at a young age, what will happen then? ?
There are a lot of puzzles or questions like this when someone might want to change the past but yes if it happens that someone goes to the past and saves a girl and in the future she becomes her mother then it will be a causal positive loop that has consistency. It may be possible to restrict the behavioral capacity of a time traveler with these causal adjustments, but it will not be possible to control the frequency of the time traveler.
It may also be that a time traveler went a year ago and read a cracked theorem in detail from IEEE and then in the past he taught it to his students which was re-written in IEEE. Then two writings at two times.
The strange phenomenon of all this time travel still leaves it in the book of possibilities. But Stephen Hawking came up with the idea of a "chronology protection conjecture" that eliminates these causal loops. Of course Penrose has such a conjecture. However the law of relativity supports the causal loop, and through this chronological conjecture some factors are needed which can deal with the subject of the past travels of the time traveler. So what are these factors? One suggestion is that the quantum process will come forward in that case. The existence of a time machine will allow the particles to travel past their loops. In some calculations, however, there is an indication that previous incidents will spontaneously break up the wormhole, creating a huge surge of energy!
This chronological protection is still at the conceptual stage, so there is still a glimmer of hope with time travel. We may have to wait for the moment when quantum mechanics will be able to interact with gravitational hypotheses, perhaps through a theory that combines string theory or its extension, creating a so-called M-theory (membrane theory). Even so, owning one is still beyond the reach of the average person. But it will definitely bring an impeccable change in physics!
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