How to Travel in Time?

How to Travel in Time?

How to Travel in Time?

What do you think about when you hear about a time machine some may want to look into the past to see distant relatives while some on the contrary want to travel to the future to look at humanity from the side in a a couple of decades, in any case, it sounds like something fantastic or maybe not it’s hard to believe but today there are actually ways to travel in time I tried to figure out exactly how this can be done and right now I'm ready to share the results there are currently no existing time machines no matter how hard scientists try to get close to creating one they lack the knowledge materials and people needed to succeed but who knows perhaps right now among you is a great physicist and at the same time an engineer my task is to introduce you to a theory your job is to read it possibly with the time you can give the world something very incredible what films are made about what many dream of something that no one has ever seen there is three main hypotheses for time travel the first follows from the theory of relativity of Albert Einstein according to his theory, a leap into the future can be made by moving at the speed of light this will be possible because the time for an accelerated person slows down compared to when standing still simply put traveling at the speed of the light you can circle the earth 10times around the equator in about one second but for me sitting still and creating a video about three seconds will pass if we consider this on a more serious scale imagine space travel suppose you were to travel at the speed of light to the star system Alphabetarians meanwhile I would remain on earth to wait for your return as you explore the vastness of the universe.

 I would continue getting older for you six years would pass for me it would be 10after returning to earth you would see how everything around has changed your children would grow up the house would be completed the technologies you knew would become obsolete however you’ll still be young and take a huge step into the future the second hypothesis is long-term freezing according to this principle, a living organism is frozen for a certain time after which it's restored and continues to live an ordinary life but there’s a the small problem the human body doesn’t work like the body of a cold-blooded frog and scientists can’t do anything about this yet therefore we’ll have to hold off on freezing ourselves, for now, the third hypothesis is about improving our knowledge in the field of quantum physics if we can learn all the subtleties of this science we’ll learn how to teleport information and physical objects it'd be great but thesis an incredibly difficult task for modern science so let's leave this hypothesis for future generations of all that I've listed above the very first hypothesis the speed of light appears to be the most realistic famous physicist Stephen Hawking long thought about its connection with time displacements he made several attempts to prove that thesis possible even in theory in his latest book published in 2018 the scientists made his final the assumption I'll rely on him as we move forward so how fast is the speed of light it's believed that in a vacuum its 299,792,458 meters per second that's 980 three million five hundred seventy-one thousand and fifty-six feet per second or two hundred ninety-nine thousand eight hundred kilometers or 186,000 287 miles per second in the presence of air the speedwell be less not by much it's unlikely that we will be able to complete a temporary leap in airspace so we won't dwell on minor differences now that we've figured out the speed of light and the travel environment what remains is to learn exactly what kind of device can help us to accomplish this the fastest man-made space object in history is the Parker’s Solar Probe its current speed record is approximately three hundred ninety-three thousand kilometers an hour or two hundred forty-four thousand two hundred twenty-five miles an hour but it’s assumed that by 2025 it'll be able to attain a maximum speed of 692 thousand kilometers or four hundred thirty thousand miles an hour very good for a space probe but still not enough for time travel the speed that it will develop will be approximately point zero six four percent of the speed of light do you see how little this is but let’s put aside engineering formalities features of the human body and some laws of physics and just try to get closer to the dream to achieve at least one percent of the speed of light you need to combine the capabilities of sixteen such devices that work simultaneously at full power to achieve 100% we need 1600units one would think that this is the time machine we're looking for but if everything was to be so simple scientists would already have long ago begun to act firstly the cost of one such project amounted to about one and a half billion dollars after making simple calculations I found out that at least two point four trillion dollars would be required to create 1600 such parker’s solar probes that's a pretty large sum for a dubious machine secondly no one knows how such a device would be Hayat may not show any results an accident could happen anyway nothing like this has ever been built in addition to accelerate to the speed of light you’ll need a huge amount of fuel to maintain the speed would require an infinite supply there are no gas stations in space yet so that's not what we need let’s go to plan B according to Hawking one can also, travel in time with the deformation of space-time if this occurs so-called a wormhole is formed the original space tunnel moreover you can move both toward the past and the future it all depends on the type of wormhole itself to visualize how it works draw two dots on a piece of paper there will be some distance between them which will take time to cover but we want to deceive time so let's play a little trick folding the sheet in half you’ll see how the two points of space connect the distance between them will be unnoticeable and can be covered in a split second this is how wormholes work according to the theory of relativity, it would seem that everything is quite simple but it lacks one important detail exotic matter before wormhole can be used it has to be filled with this substance so you can enter from one end and exit from the other in the absence of such matter the portal through space and time will slam shut even before you have time to move from one end to the other this type of matter is still unknown to modern scientists but we can roughly assume how a time machine based on a wormhole would work for a successful journey one end of the wormhole must be accelerated to near-light speed and then returned to its original state sounds pretty complicated that is why even the great minds of modern science can’t create anything like this but maybe there's a chance to find something similar in space yes there is and this chance is much greater you might expect it's believed that wormhole is a combination of black and white holes all these objects have a strong curvature of space however the a wormhole has no event horizon like a black hole a trap from which we can’t return surprisingly such temporary tunnels don't contradict the laws of physics but for now, in space, there isn’t single confirmed candidate for this role all the hypotheses and theories previously described speaking mainly about traveling into the future yes that’s right I said that a wormhole can be used to travel into the past but there’s still a lot of work to be done and also many years of waiting what do we have for now in a sense you can leap into the past without leaving your home it’s enough just to look out the window at the sky you'll see the light reaching us from planets and distant stars to overcome the distance to the earth, it took hundreds of thousands and even millions of years simply put now you see what happened incredibly long again the meantime scientists are trying to solve all the secrets of space and time.