Man Traveled to Future and You Could Too...Technically

so time travel is real actually you're traveling through time right now with every second of this video you move one second into the future but there's one person on earth who has managed to time travel a little further into the future two hundredths of a second and that's not the limit meet sergey krikalov he's an astronaut who spent 803 days 9 hours and 39 minutes on the international space station that's the key to his time travel the point is that for two objects one standing still and the other moving time flow is different that is if we take our planet as one object and the iss is the other time on earth and on the iss will go differently but this is not enough to significantly affect time we need to look at gravity the larger the object the stronger its gravitational force for example on the moon you can jump higher and lift heavier objects than on earth because the moon is light but on jupiter you can barely stand on your feet because it's heavy and its gravity is many times stronger gravity bends space-time itself imagine a trampoline or a stretch cheat as long as there's nothing on it space-time is even and time is the same at all points but put a heavy object there and you'll see a pit forming in it now imagine putting a heavy object like the planet earth in the center of the sheet it weighs 6 tons plus another 21 zeros it would bend our sheets so much that time would go differently in the center than in a place where space time is flat and the heavier the object the greater the warp and the slower time will go there for example near the sun time goes even slower than on our planet because it's more than 300 thousand times heavier or take a black hole even a small one weighs tens or hundreds of times more than the sun and super massive ones are millions and billions of times heavier they will bend space time so much that time near them practically stops so our hero sergey krikalov used this very method of time travel he just wasn't at the very depth of this time space vortex but on the iss it's at a point in space time where the curvature of the sheet isn't that strong and time went a little faster for him than it does here just a little bit and if you spend enough time there gradually you start to overtake the people here on earth in time sergei could have gone much farther in time but another law of physics prevented him from doing so it's all about the unity of space and time if you're standing you're only moving in time but if you run forward you move both in time and space the faster you run through space the slower you move in time the international space station travels around our planet at 4.7 miles per second this speed slowed down sergey's movement through time so in more than two years on the iss he only traveled in time by two hundredths of a second so here's a way that you can time travel seat your friend at a table and give them one watch put the other one on your arm and start running around the table if you run fast and long enough you'll notice how the time on your watch and your friends is different voila you have traveled through time but there are other ways to get to the future for the first way you need to get to a black hole the closest one is just over 1 000 light years away from our solar system you jump into your faster than light spaceship and arrive there you need to fly as close as possible to its center to the very edge of the event horizon space time is so warped here that one second can be equal to weeks or even months on earth so just wait here for a few minutes now turn the hyperdrives back on and fly away of course you have to be careful here black holes are so heavy that nothing can escape their gravitational force even light which is the fastest thing in the universe can't escape a black hole's embrace but that's no problem for you and you're already on your home planet wow it's been decades on earth while you've been away there are flying cars robots and holograms everywhere another option is traveling at the speed of light you and your friend are standing on the starting line at the stadium and each of you has a stopwatch press start you run at the speed of light around the earth a few times and finish stop the clock the time with which you ran your sprint is less than that of your friend who is standing still but there's a so-called twin paradox that scientists are still racking their brains over it's all about what to take as a reference point if the center of the coordinate system is a person standing still and the other is running at the speed of light then the runner's clock will lag after the run because they were moving not only in time but also in space remember but if you take the runner as the reference point it was the static person who was in motion relative to them and then the static person's clock would have to be behind so as a result of the experiment both guys's clocks the runner and the static guy would show the same time this is the twin paradox another way to cheat the laws of physics and stop the flow of time is to get into the plank position then time just stops for you okay just kidding assuming that traveling back in time is possible there's a whole bunch of problems and paradoxes for example at 12 pm you're engaged in building a time machine at 12 30 you finish building it and then at 1 pm you enter it for one purpose to prevent you from building the time machine yourself then you go back in time at 12 20 when the time machine is almost finished and break one of its details so that it can't be built to start with but if your younger version couldn't build a time machine then there's no way that you could get to the past either right or what if you did build a time machine and went back in time to your father when he was on a date with your mom you ruined their date and they break up in this case your birth would have been impossible but if you hadn't been born you would never have built a time machine and gone back in time to ruin your daddy's date and then nothing would have interfered with your birth wow things are getting a little too complicated okay there are simpler ways to travel through time for example biological ones i'm talking about freezing if you freeze your body you will move through time with the rest of the world but you'll be asleep the whole time and when you wake up you'll be in the future by the way animals that hibernate in winter like bears are time travelers they simply skip the hungry winter seasons but there's one problem with that when we freeze the water in our cells and tissues turns to ice and as a consequence they feel dehydrated like in a desert this can be avoided by using protective chemicals but the hardest part is the awakening our scientists can't safely unfreeze a living organism so for now freezing your body is a one-way ticket but we have hope that scientists of the future will find a way to avoid damaging cells and tissues then they'll open refrigerators with people and wake up a whole bunch of time travelers and that's a pretty expensive adventure freezing an entire body can cost two hundred thousand dollars or more but many people believe that time travel is already real and some time travelers have been caught in photographs or camera footage for example this photo from 1941 there are men in suits and women in elegant hats and among them this guy in futuristic glasses and hoodie or this video where you can see a woman in the background talking on her cell phone wow that was about a century ago and back then no one could imagine what a cell phone was well these facts can be easily explained the man in the photo is wearing glasses that were made back in 1920 and the t-shirt and hoodie also already existed at that time and the woman talking on the cell phone is actually holding an acoustic on in her hand it's kind of a hearing aid one of the first of its kind so we can say one thing for sure time travel remains just a dream for all people except sergey krikalov who was able to trick the laws of physics and be two hundredths of a second ahead of all the people on earth

Channel: BRIGHT SIDE

Views: 483,596

Rating: 4.9185495 out of 5

Keywords: bright side, brightside, space facts, space exploration, space mysteries, space phenomena, planets, planet facts, what are black holes, black hole theories, space facts bright side, space video, black holes in space, what is space time, space time meaning, how time works in space, do black holes change time, how black holes affect time, do astronauts age faster, do astronauts age slower, how time is different in space, world record for time spent in space, famous astronauts

Id: xcFWkNFgV_Y

Length: 9min 39sec (579 seconds)

Published: Tue Mar 23 2021