Good day, friends! The FBI detained 44-year-old Andrew Carlssin in March 2003. This man's extraordinary luck was reported in the media. He had earned more than anyone else in the history of the stock market. He put in $800, which grew to $350 million in two weeks. The FBI was concerned that he was engaging in fraud. that he traded as an insider. Andrew responded that he was a time traveler when he was questioned. He claimed to be a future traveler from 250 years ago.
He also invested in the stocks because he was aware of how they would perform. and achieved an extraordinary outcome. This pleasantly surprised the FBI. He was believed to be lying by the FBI. And they set out to show that he was lying on their own. After doing additional research, they discovered that there was no record of Carlssin prior to December 2002. Even more shocking was the fact that Carlssin had to appear in court on April 3 for his bail hearing, but he had vanished and was never seen again. Did he really travel through time? Is it possible to travel through time in real life?
Or does it only apply to films and novels? Let's get a scientific understanding of the idea of time travel in today's blog. That's great; are you referring to a time machine?" Are you aware of the guidelines for time jumps?" Temporal travel: a concept that has been looked into since the beginning of the 1900s." When we're talking about time travel here, I have no idea. All of it or none of it is a joke. H.G. Wells published his ground-breaking novel The Time Machine in 1895. The term "time machine" was coined shortly thereafter. a machine that can transport you both into the past and the future.
You can use it to travel through time. Despite the fact that it was science fiction, this book inspired a number of philosophers and physicists. Time travel was the subject of serious research papers and numerous films. Time travel can be divided into various categories based on how it is carried out exactly. To begin, let's use sci-fi movies to better comprehend this idea. There are many different kinds of time travel. The first is going back in time one way.
You go to the future and can't go back. It's a one-way trip through time. One illustration of this is Interstellar. In it, a time traveler went to the future, but when he meets his family and other people again, they continue to get older. Even some had perished. Instantaneous Time Jumping is the alternative strategy. Using a time machine, a person can quickly move from one point in time to another. In the movie Back to the Future, it was shown. as well as in The Girl Who Changed Time.
The third option involves the time traveler remaining stationary while time moves around them. In the Harry Potter movie, this was demonstrated: Azkaban inmates. whenever Hermione makes use of the time turner. Slow Time Travel is the fourth. as depicted in the 2004 movie Primer. The time traveler enters a box, and for each minute he spends there, he travels back in time by one minute. He had to stay in the box for a day if he wanted to go back a day. The fifth is traveling through time at the speed of light. Superman (1979) demonstrated this. In it, Superman travels back in time and flew faster than the speed of light. The question is, which of these ideas for traveling through time actually exists today? in actuality. Which strategy might emerge in the future? Which way is best is completely unscientific and cannot be determined. You might think that all of these are nonsense, science fiction, and impossible, so don't be surprised. It is not accurate. Even today, some of these are actually realizable. In general, time travel can be divided into two categories. The first is to travel into the future, and the second is to travel back in time. First, let's talk about getting to the future. Albert Einstein's Theory of Special Relativity is the source of the scientific explanations and theories for traveling to the future. Einstein was the first to introduce the idea of time dilation. Time was thought to be constant prior to Einstein. Regardless of whether you are on Earth, Mars, or close to a black hole. It was believed that time remained constant. This was stated by Isaac Newton, one of the world's most well-known mathematicians and physicists. He believed that the flow of time would remain constant no matter where you were or how fast you were moving through space. This was first refuted by Albert Einstein. He asserted that Newton was mistaken.
Time doesn't always pass. Time, according to him, was like a river. In the same way that the flow of water in a river sometimes slows down and sometimes speeds up, time also sometimes slows down and sometimes speeds up. based on gravity and speed. If the speed and gravitational force could be altered, Einstein had stated that time could indeed be sped up or slowed down. Time dilation is the term for this.
Time also dilates when an object moves at a faster speed or is subjected to an increased gravitational force, just like your pupils do. How exactly had Einstein discovered this? That took me several days to comprehend. I will not elaborate on that explanation. There are basically two methods for extending time. The first occurs quickly. If you are seated in a moving object at a rapid speed. like a spacecraft or airplane.
Time would slow down more for something that moves quickly. compared to someone who is moving at a slower rate. If I have to illustrate it with a concrete example, let's say you have two clocks. I always keep one with me and set it on the ground. Additionally, I ship the additional clock to you in an airplane. The aircraft completes one earth-circle and returns. If we then compare the two clocks, even though they initially displayed the same time, the clock you brought on the plane now displays a time that is a few nanoseconds behind the other.
The time on the two clocks would not match. because a single clock was moving at a faster rate. Kinematic time dilation is a factor. I didn't invent this. 1971 saw the launch of an experiment. The clocks were atomic. because time needed to be precisely measured. Additionally, it was observed that the airplane's clock displayed a time that was later than the other clock. The Hafele Keating Experiment was the name given to this. Einstein's theory of time dilation had been confirmed by this.
It does not imply that the airplane's clock is actually slowing down time. It indicates, rather, that time is relative. In our relationship, time slows down when we observe the airplane's clock from the ground. Time is passing more slowly because we are seeing it. Time would continue to move in that manner for both a person aboard the plane and the plane's clock. If we were able to construct a rocket that could travel at the speed of light, you could hop aboard. You travel at that speed for ten years inside that rocket. The time you see when you return to Earth would then be 9,000 years later. Simply put, it is scientifically feasible for you to travel into the future right now if you so desire. The only drawback is that no aircraft currently operates at this speed. You can travel at lightspeed.
However, as technology advances, we will be able to construct additional spacecraft and aircraft capable of faster flight. It would gradually become attainable. For the time being, Russian astronaut Gennady Padalka is credited with most time travel into the future. It's because he spent the most time in space. 879 days. He was also traveling through space at 28,000 kilometers per hour. As a result, he has reached the future in 0.02 seconds. He is one second younger than everyone else on Earth. Don't be upset because we can travel so quickly that we will be able to travel through time significantly in the future. because Einstein proposed a different method of time dilation. by utilizing the force of gravity. Gravitational force causes time dilation in the same way that speed causes time dilation. The dilation of time would be greater the greater the gravity. Einstein asked us to imagine a space-time fabric in order to visualize the time dilation caused by gravity. Put balls on a mesh, like the one in this picture.
These balls could be considered planetary objects. This mesh would be wrapped more tightly the heavier the ball. The gravitational force of the planetary object would be greater the more mass in the ball. Jupiter's gravitational pull is greater than Earth's. Jupiter's gravitational pull is less than that of the Sun. The gravitational force of an object is represented by a curve in the fabric of space-time. Time would seem to pass more quickly the closer you got to an object with a lot of gravitational pull. You would experience a time lapse. You can see in this mess that your speed slows down more the steeper the drop. With this visualization, you can get an approximation. This basically means that if you want to travel through time in the future, you should spend some time close to Jupiter, the Sun, or another object with even more gravitational pull. like a void in space.
Time would pass you by slowly if you spent some time near a black hole. If you recall, this is the same idea presented in the movie Interstellar. It depicts the protagonist landing on a planet close to a black hole, and for every hour he spends there, seven years pass for those not on the planet. The black hole caused that amount of time dilation in that film. It is a representation that is scientifically valid. It will actually occur in this manner. However, it is unknown whether a person can survive that close to a black hole. Black holes are said to be the most massive objects in the universe.
Light is said to begin bending around black holes as well. Three years ago, a telescope captured the first image of a black hole, proving what had been thought to be only theoretical. This image was taken by the Event Horizon telescope on April 10, 2019. The internet went crazy for this picture. because it is the first time a black hole has been rendered visually. In any case, if we return to time travel, I informed you that there are two ways to travel into the future. The first is to travel quickly, and the second is to get very close to a gravitational object that has a lot of mass and a lot of gravity. I'd like to give you another practical illustration of this: the GPS satellites, which keep circling the earth at a high speed and are farther away from us than they are from the earth's gravity. GPS satellites display time dilation in both senses because of this. Additionally, the time dilation necessitates that scientists continue to correct the time calculations on those satellites. The time on the satellite clocks and the time on Earth will differ if they are not corrected. GPS communication would have issues. Friends, interestingly, there will be a third method of traveling through time in the future. Cryosleep. It has also appeared in numerous films. You might remember the recent film Passenger. A spacecraft was carrying people who were frozen. They were put into cryosleep, a state in which they never grow old, for months or years. They continue to sleep. It is speculative fiction. However, NASA is actually working on creating a Stasis Chamber.
It would allow astronauts to sleep continuously for two weeks while they were kept in a state of mild hypothermia in a cold environment. a sort of hibernation. It is based on the idea that keeping a body cool would significantly slow down its chemical reactions. As a result, the body would conserve energy and age more slowly. In a case that was related to this, an injured man in Japan survived for 24 hours without food or water because his body went into a kind of hibernation. The body temperature of that man was only 22 degrees Celsius.
Normally, prolonged exposure to this cold in a human body could result in death. However, not only did this man survive, but he also fully recovered from that condition—how by chance, I have no idea. after someone else discovered his body. According to medical reports, there was no long-term harm to his body. His body had slowed down, but his brain had not been hurt. It's possible that cryosleep will be developed in the future.
by a space agency other than NASA. We will need to watch and wait. One thing, however, you would have noticed. Time travel into the future was the only method I've mentioned up to this point. How about the previous? Can we realistically travel back in time? In the video about the James Webb telescope, I kind of told you one way to do it. We are currently unable to enter the past, but we can see glimpses of it. Even though light travels very quickly, it takes a significant amount of time to travel from one location to another. If we measure distance in light-years, it takes years for light to travel to some locations. Therefore, the approaching light would be from the past if we could reach a location ahead of time and then look back at it. We can see into the past this way.Getting a glimpse of the past was what this was. Is it possible to actually travel back in time?
Stephen Hawking, a world-renowned physicist, hosted a party at the University of Cambridge on June 28, 2009. The party had champagne and balloons, but what made it special was that no one showed up, even though everyone was invited. This party for time travelers was hosted by Stephen Hawking. This party was open to any time traveler who came to our timeline from the future. The purpose of this comedic experiment was to demonstrate that time travel is impossible. We would be surrounded by future time travelers if this were possible. Where are the travelers going back in time? Why do we not meet with them? Einstein's theory of relativity does not prove that one can travel back in time. Einstein had predicted that a wormhole would be formed in the space-time mesh if an extremely heavy gravitational force was applied, causing an object to pass through the mesh. That wormhole allows us to travel back in time. It is said that we would need a very strong gravitational field to accomplish this. like the one found in a black hole.
It's possible that a spinning black hole can generate such a strong gravitational field that it reverses the space-time curvature. A close time-like curve, or CTC, would result. You can try to make sense of it by looking at this diagram. You can attempt to picture it. Kip Thorne, a physicist who won the Nobel Prize, is of the opinion that tiny wormholes constantly form and then vanish into space. However, they are very small. less than one atom. Additionally, we would need to open them in some way in order to travel through them.
They would need a lot of energy to grow. We would require negative energy as well as normal energy. A type of anti-gravitational energy that would repel the space-time fabric is known as negative energy. Similar to how the same magnet poles repel one another. It would repel negative energy in the same way. This would make it possible to travel through the wormhole and keep it open for a long time. What method would be used to extract this negative energy? How exactly would it be made? It is something to consider. For the time being, this is only speculation.
But it's a theory from a Nobel Prize-winning scientist, so it has a lot of weight. You might believe that it is theoretically possible to travel back in time because of this. But there are a lot of obstacles when we talk about going back in time. We face significant obstacles. I'm referring to paradoxes. like the Grandfather Paradox, for example. The paradox is as follows: Let's say I use time travel to travel back in time. Additionally, I kill my grandfather. How would I be born if he passed away?
I shouldn't be alive if my great-grandfather passed away. And how could I have killed him in the past if I never existed or was born? How can this be explained? A paradox exists here. I'm either alive or dead. This is contrary to logic. This is supported by a few theories. such as the Multiverse Theory. The theory asserts that only one universe existed at the time.
But if you go back in time and change something, a new universe, or multiverse, would be created. Therefore, there are numerous universes with distinct events. The Predestination Paradox is another paradox that is connected to this one. It asserts that everything I do shapes my present timeline when I go into the past and do whatever. This paradox asserts that certain outcomes are predetermined. The events will unfold as planned in destiny.
Whatever you try to change in the past will have an impact on your present, no matter how hard you try. I'll give you an example if you're still not clear. Imagine that your friend is involved in an accident and dies. Though I hope it doesn't, I can only imagine that it does, and that you have a time machine. You try to avoid that accident by going back into the past.
But what exactly takes place? You have done something that actually contributed to the accident by revisiting the past. After that, you realize that your attempts to avoid the accident in the past were the cause of the incident. In a lot of movies, this was the idea. Predestination, 12 Monkeys, Timecrimes (2007), The Time Traveler's Wife (2009), and
When traveling back in time, there would be a lot of logical problems overall. It might never be possible because there would be paradoxes. However, it is possible to travel into the future today. Additionally, it will increase in likelihood in the future. Additionally, it is currently possible to catch a glimpse of the past. Therefore, in a sense, time travel is a reality. It was also, to a certain extent, the scientific truth, as demonstrated in films like Interstellar.
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