Time travel possible; Russian scientists say
- Thread starter Rukas
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wh-whaat??
Are you serious??
I never knew that..
So you could actually move faster than time?
oh nevermind, don't try to explain that to me, I will just get a headache
Are you serious??
I never knew that..
So you could actually move faster than time?
oh nevermind, don't try to explain that to me, I will just get a headache
In fact they did an experiment in 1975 where they took two identical clocks and put one on the ground and one on a plane for several hours. When the plane landed the clock on the plane was slightly behind the clock on the ground because time had actually slowed for the clock on the plane and therefore it moved forward in time.
It is a simple highschool physics formula actually. I am sure you are aware of the equation a=v/t right?
Well therefore t=v/a. This is a very basic equation but it shows that time is directly related to velocity (speed) without going into Einstein's theories.
Get it? It really isnt that difficult at all.
Lol, there's a lot of cool things you learn in physics. Did you know the desk your resting your arm is 99.9999% empty space and the only reason we percieve it as solid is because the atoms which we are made of occupy even less space. 
Err not quite in the way were talking. That equation is more related to a question like: Your accelerating at 4.2m/s, what is your velocity after 8 seconds.
Not quite the way your thinking. Say person A and B are born at exactly the same time. When person A is born he lives a completly normal life on Earth, however the moment person B is born, he is hurtled into space on a spaceship which is moving at 295,000 km/s. Person B travels in space, constantly moving at 295,000km/s for what is 16 years (relative to him anyway). When he returns to Earth he will find that person A has aged ~100 years whilst he has only aged 16 years. Time travel the way you're thinkg (i.e. travel forward/backwards in time) is impossible as far as we know. However that doesn't mean it won't one day be possible
Err not quite in the way were talking. That equation is more related to a question like: Your accelerating at 4.2m/s, what is your velocity after 8 seconds.
So you could actually move faster than time?
oh nevermind, don't try to explain that to me, I will just get a headache
oh nevermind, don't try to explain that to me, I will just get a headache
It's sorta interesting because if you read up on earth's gravity, eventually you'll find a really cool 3D picture showing how the earth sits in nothingness (empty space). The earth isn't just "there", it creates a warp in space. This is the reason we don't fall off. The further away from the center of the warp you get, the slower time moves. when you break out of the "socket" of emptiness that the earth creates, i'm not sure, but knowing the basics of electromagnetism and gravity, i see all kinds of crazy things being possible.
the scientist was an idiot to say "time travel". a human will never go back or forth in time to meet him/herself in an older/newer version, or otherwise change historic/casual events to try and change the outcome in the future. at best, you can be ahead of others in time when you are in a certain atmosphere but you will re-align gradually as you exit that atmosphere anyway.
the scientist was an idiot to say "time travel". a human will never go back or forth in time to meet him/herself in an older/newer version, or otherwise change historic/casual events to try and change the outcome in the future. at best, you can be ahead of others in time when you are in a certain atmosphere but you will re-align gradually as you exit that atmosphere anyway.
In the simplest of terms, this is caused by the force of gravity, which is acceleration at 9.8, and acceleration and velocity are in proportion to time.
And, time travel to the future is possible by speeding time up, and a re-align does not occur, as was demonstrated in 1975 by the clock experiment.
So we can move forward in time if we travel fast enough, but not backwards, which would also explain why no one has come back to visit us.
And, time travel to the future is possible by speeding time up, and a re-align does not occur, as was demonstrated in 1975 by the clock experiment.
So we can move forward in time if we travel fast enough, but not backwards, which would also explain why no one has come back to visit us.
According to the special theory of relativity, you can't start out with a speed less than that of light and go faster and faster until you pass the barrier because time stands still at the speed of light itself, while length contracts to nothing. But it's only the actual speed of light itself that marks this forbidden territory. If something existed that always traveled faster than light relative to us, it would travel backward in time.
There are, in fact, solutions to the equations of the special theory corresponding to particles which always travel faster than light. They have been called tachyons. Though still hypothetical and embarrassing to most physicists, they are not ruled out by the special theory.
So if some advanced civilization on Alpha Centauri learned how to access the tachyonic world, they could travel 4.3 light-years in space while at the same time travel 4.3 years backwards in time, and arrive here instantaneously from the time they left.
Aren't UFOs sometimes seen to appear out of nowhere and then disappear and appear in another part of the sky? Don't they sometimes seem to defy the laws of inertia by changing direction at tremendous speeds? Hmmm.
There are, in fact, solutions to the equations of the special theory corresponding to particles which always travel faster than light. They have been called tachyons. Though still hypothetical and embarrassing to most physicists, they are not ruled out by the special theory.
So if some advanced civilization on Alpha Centauri learned how to access the tachyonic world, they could travel 4.3 light-years in space while at the same time travel 4.3 years backwards in time, and arrive here instantaneously from the time they left.
Aren't UFOs sometimes seen to appear out of nowhere and then disappear and appear in another part of the sky? Don't they sometimes seem to defy the laws of inertia by changing direction at tremendous speeds? Hmmm.
Well, I might have been unspecific when I said "re-align", so let me elaborate. With respects to the clock, when you take a clock into an atmosphere where time moves faster or slower than in the "regular world", it will move out of sync with other clocks. It will not re-align and move slower in time to re-sync with the clocks down on the earth surface, but it will re-align in the sense that soon as you bring the clock out of the aforementioned time-manipulating atmosphere, it will no longer move slower or faster than the rest of the world. Like Da_Funk mentioned, the clock, if it were in an atmosphere where time moved faster, would not be ahead of itself in time when it exited this atmosphere. The clock does not make a jump in time, time simply affects the clock differently for a period of time. Soon as the clock exits the atmosphere, it is still the same clock and it still sits in the same position in time. For the mind's eye, one might say that as it gradually moves away from the atmosphere an atom's length at a time, the way time affects the clock proportionally re-aligns itself with the normal standard affect time has on a clock.
Now what Jokerman mentions about tachyons and light speed travel is far more interesting.
Now what Jokerman mentions about tachyons and light speed travel is far more interesting.
Thats a glass is half or half empty kind of argument. Time slowing down relative to you is time travel. Object A travels on the plane, Object B stays on the ground, time around Object A is warped, Object A lands and regions the Object B timeline and thus has traveled through time. The time is different to what it would have been had it stayed on the ground. That is time travel. And humans can do that, and in fact it happens to all of us when we travel on a plane.
That isn't time travel. See, you're assuming time is constant when infact time is relative. When getting off that plane I'm not stepping into the future, I'm simply moving into a space where time is less warped relative to me. See if someone from B stepped onto object A, say midflight, would they be moving "back" in time? They wouldn't be, as soon as they get onto object A all that happens is time slows relative to them. Like Jokerman said, to time travel (that is, move outside time) you need to move faster than the speed of light, and while there are "solutions" to this problem, they are embarrassing to most physicists.
That is time travel.
Lets take an example we are all familiar with, Back To The Future. It is the same principle, car travels fast enough that time around it slows so it moves forward in time. Time for everybody in the Delorian is relative, time relative to M J Fox's character moves normally, but as soon as he slows down and steps out of it, rejoining time outside of his vehicle, because time outside has moved slower he ends up in the future.
This is the exact same principle observed on the airplane in regards to moving forward in time.
So yes, it is time travel.
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