Time Dilation near massive object

so sadly it looks like time travel to the past is never going to happen a disappointment for dinosaur hunters and a relief for the historians but the story is not over yet this doesn't make all time travel impossible I do believe in time travel time travel to the future Traveling into the future the idea was proposed by Albert Einstein over 100 years ago he realized that there should be places where time slows down another where time speeds up. He was absolutely right and the proof is right above our heads up in space this is the global position system or GPS a network of 31 satellites in orbit around the earth the satellites make satellite navigation possible but they also have revealed the time runs faster up here than it does down on earth! inside each spacecraft is a very precise clock but despite being so accurate they all gain around a third of a billion for the second every day the system has to correct for the drift otherwise that time difference would upset the whole system causing every GPS device on earth to go out by about six miles a day you can just imagine the mayhem that would cause the problem doesn't lie with the clocks they run fast because time itself runs faster here than it does down below and the reason for this extraordinary effect is the mass of the earth. Einstein realized that matter drags on time slows it down like this slow part of a river the heavier the object the more it drags on time and this startling reality is what opens the door to the possibility of time travel to the future I admit this is a difficult concept to understand so let's take this simple example. This is the great pyramid of Giza It weights over 40 million tons and like all heavy things its actually slowing down time The effect is small, billions of times smaller than that of the earth but if we exaggerated drastically you can see the principal at work. Close to the pyramid, everything is slowed down. Again, like the sluggish part of the river, here time itself is passing slower compared to how its passing farther away. But what if people near the pyramid looked outwards? They mus see the opposite effect because they are slowed down, they must see time in the distance as running fast! It's a simple result of the mass the pyramid this distortion opens the door to the possibility of time travel. so what we need to really travel in time is something much more massive than pyramid. And I know just the thing! :D ... home containing the mass of four million suns. Crushed down into a single point by it's own gravity The closer you get to the black hole, the stronger the gravity. Get really close, and not even light can escape. so it's wrapped in a sphere of darkness 15 million miles in diameter a black hole like this one has a dramatic effect on time slowing it down far more than anything else in the galaxy that makes it a natural time machine! I like to imagine how a spaceship might someday be able to take advantage of this spectacular phenomenon. Of course it would first have to avoid being sucked in The trick I think would be to aim just off to the side so they'd miss it They'd have to be on exactly the right trajectory and speed or they'll never escape. Get it right and the ship will be pulled into orbit, a giant circle 30 million miles in diameter. Here it would be safe. It's speed would be enough to keep it from falling any further in. If a space agency was controlling the mission from earth, or anywhere else far away from the black hole, They'd observe each full orbit took 16 minutes but for brave people on board, close to this massive object, time would be slowed down! :O and here the effect would be far more extreme than near the pyramid or planet earth The cruise time would be slowed down by half. For every 16 minutes orbit, they'd only experience 8 minutes of time. Round and round they'd go, experiencing just half the time of everyone far away from the black hole. This ship and its crew would be traveling through time. Imagine they circle the black hole for five of their years. 10 years would have past elsewhere. When they get home, everyone on earth would have aged five years more than they had. The crew of the space craft would return to a future earth. They would've made a journey not only in space, but in time. So a supermassive black hole is a time machine but of course it's not exactly practical It has advantages over wormholes in that it doesn't provoke paradoxes. Plus it won't destroy itself in a flash of 'feedback' But it's pretty dangerous and it's long way away and it doesn't take us very far into the future :(

Channel: Shaer Ahmed

Views: 157,597

Rating: 4.7229218 out of 5

Keywords: Time (Dimension), Object, Theory Of Relativity (Literature Subject), Time Dilation, Stephen Hawking (Academic), Into The Universe With Stephen Hawking (TV Program), Interstellar, Interstellar Movie, Space, Cooper, Brand, Romilly, Gargantua, Matthew McConaughey (Celebrity), Anne Hathaway (Celebrity), Michael Caine (Film Actor), Mass (Dimension)

Id: nAxedfo1SE4

Length: 9min 17sec (557 seconds)

Published: Sun Apr 05 2015