# Time travel

#### skellattarr

my theory is if you go around the world so fast that time doesn't pass you hit what i call absolute zero. then if you go faster you would collide with your self even mater or energy would do the same. this is a bearer even if you go in a strait line and go faster then absolute zero you would still hit that bearer.so time travel is impossible.

#### CrAsHnBuRnXp

There is no evidence to prove or disprove that going around the world as fast as superman will throw you into time travel. And since you cant prove it, its just a theory.

#### pantherx12

There is no evidence to prove or disprove that going around the world as fast as superman will throw you into time travel. And since you cant prove it, its just a theory.

Actually, there's loads and loads of evidence saying that it wouldn't happen.

As we know time is relative, and slows down for fast objects, if something could just keep going faster and faster the universe around you ( the person flying about real fast) will just age rapidly(in relation to how fast you age), you'll end up in the future not the past.

That's not really time travel per se though, putting your self in stasis would achieve the same end result. ( being in the future)

If you support the multi-verse theory, time travel is theoretically possible ( as all points of time would all exist together at once as well, something I support and call time sphere instead of time line) how ever the HOW, no one has any freaken idea as or even a guess as far as I'm aware.

#### skellattarr

that is what i said in the first place is its my theory.

#### pantherx12

that is what i said in the first place is its my theory.
Is it? It sounded like if you travel so fast around a static object you'd end up hitting yourself, or be able to travel through time ( the title implies that) But just going forward through time is something we all experience every day.

Not really very exciting. ( not trying to troll, just pointing out what your saying doesn't really need to be discussed, yes if you travel fast you'd end up in the "future" faster, but that's something that most people already know)

#### silkstone

The faster you travel, the higher your mass. It is impossible to travel at the speed of light due to this.

If you support the multi-verse theory, time travel is theoretically possible ( as all points of time would all exist together at once as well, something I support and call time sphere instead of time line) how ever the HOW, no one has any freaken idea as or even a guess as far as I'm aware.
Gravity wells warp the fabric of space time, so people theorise that with the use of these wells you could travel through time.

#### pantherx12

The faster you travel, the higher your mass. It is impossible to travel at the speed of light due to this.

This isn't true by the by.

"If Einstein’s assumption that the mass varies with the speed is valid, then the mass of a moving object reaches infinity at the speed of light. A greater speed is thus impossible. But this is only one of the possible interpretations of the mathematics (which he based his theory upon), and neither Einstein nor anyone else has produced any tangible evidence to support this interpretation."

Well, that is to say, it could be true, it could be false.

So better not to state it's fact or fiction but instead say it's highly likely or unlikely depending on your preference

I personally think it's bull crap that at light-speed mass reaches infinity ( or even goes up to a massive amount) other wise there be black holes forming on the way to black holes ( as objects approach a black hole there's going to be some point they'll be pretty freaken fast)

An infinite amount of mass would also mean an infinite amount of gravity. Which mean the gravity would be be limitless in it's reach and pull everything into it.
( not sure what current black hole theory is, but personally I believe in nothing fancy about them, they have a finite amount of mass
Last I checked the thinking was that they have infinite mass)

This doesn't happen.

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#### skellattarr

Is it? It sounded like if you travel so fast around a static object you'd end up hitting yourself, or be able to travel through time ( the title implies that) But just going forward through time is something we all experience every day.

Not really very exciting. ( not trying to troll, just pointing out what your saying doesn't really need to be discussed, yes if you travel fast you'd end up in the "future" faster, but that's something that most people already know)
i wasnt replying to you sorry but i was repling to crashnburnxp

#### HalfAHertz

The faster you travel, the higher your mass. It is impossible to travel at the speed of light due to this.

Gravity wells warp the fabric of space time, so people theorise that with the use of these wells you could travel through time.
or space or both

I liked the comparison of space-time to a river of honey, where each gravity well(planet, sun, black hole) are differently sized rocks sit in the middle. But because these rocks are spinning, they drag it around like propellers.

“Picture the Earth immersed in honey, and you can imagine the honey would be dragged around with it,” Everitt said. “That’s what happens to space-time. Earth actually drags space and time around with it.”

#### silkstone

“Picture the Earth immersed in honey, and you can imagine the honey would be dragged around with it,” Everitt said. “That’s what happens to space-time. Earth actually drags space and time around with it.”
Yes, it's a nice model, but incomplete. It's impossible for us to come up with a correct physical models as our minds aren't built to think in 4 dimensions

#### HalfAHertz

Yes, it's a nice model, but incomplete. It's impossible for us to come up with a correct physical models as our minds aren't built to think in 4 dimensions
If M-theory is correct, we have to think not in 4, but in 11 dimensions (4 spatial, 6 time and 1 changeable)

#### silkstone

If M-theory is correct, we have to think not in 4, but in 11 dimensions (4 spatial, 6 time and 1 changeable)
aye, but only for certain situations. There's a cartoon on you tube somewhere that tries to explain it  - Found it. like if the pixels on our screen were actually alive, they would not be able to imagine the 3rd dimension (which we live in).

It's extremely interesting stuff that opens up the universe to lots of possibilities.

I like Iain banks' ideas in his books about the culture. There are computerized "minds" which are able to think in and travel in the 4th dimension.

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#### wahdangun

##### New Member
we can already travel in time.

do you know why gps satelite must sync their time to earth ? Because they already travel in time, their time is slower than earth, so if you want to travel to the future then you must have a very very fast vehicle so it will be noticeable or you can go where the gravity is so immense that it start slowing time like blackhole.

Btw we can't travel back in time tough because the feedback will destroy the device instanly.

#### Fourstaff

##### Moderator
Staff member
We can only travel forward in time, at least in our universe (if multiverse exists). Rate at which we travel forward depends on other factors. However, we cannot travel backwards in time because if we could our future selves would have visited us. Or perhaps they did in the form of Jesus and whatnot, found out that they screwed us big time and decided its not worth their time. But that is another story.

#### 2DividedbyZero

##### New Member
I posted my answer to your question here last week, you musta missed it

#### trickson

##### OH, I have such a headache
Hmm didn't superman travel back in time ...?

Time travel is not possible for us humans ( Not at this time ) maybe in a billion billion years maybe . But we can only sit on this rock and dream about it . And "If Einstein’s assumption that the mass varies with the speed is valid, then the mass of a moving object reaches infinity at the speed of light ". Why don't light Photons weigh "infinity" and crush every thing in there path ? Mind boggling .
Some times I wish the sun would just explode !

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#### BinaryMage

##### New Member
we can already travel in time.

do you know why gps satelite must sync their time to earth ? Because they already travel in time, their time is slower than earth, so if you want to travel to the future then you must have a very very fast vehicle so it will be noticeable or you can go where the gravity is so immense that it start slowing time like blackhole.

Btw we can't travel back in time tough because the feedback will destroy the device instanly.
Usually, when people speak of time travel, they mean traveling at a speed or direction that significantly deviates from the norm. At this point, you and I are traveling at slightly different speeds in time relative to each other. I personally think that it's likely we will find a way to enact some form of time travel, as we have already discovered that we can affect, albeit minimally, the rate at which time proceeds, through speed and gravitational force.

And fourstaff, just because we have not recognized anyone traveling backwards in time to meet us does not mean that it has not happened. Anyone from a future in which humanity had access to time travel technology would also likely have the capability to effectively disguise themselves. One must also consider the fact that future people would not want to affect history, because it could affect their future. Both forwards and backwards travel in time do throw up logical problems, though. Going into the past, the most obvious one is the "I killed my grandmother" impossibility, in that if you killed your grandmother, you would cease to exist, and then you could not have killed your grandmother. With travel into the future, things stay mostly fine unless you travel back into the past. For example, if you went two hundred years into the future and brought back the theory for faster-than-light space travel, and then you were the pioneer of that theory in your time, the actual information in that theory would have come out of nowhere, which is impossible.

Who knows if we will ever be able to travel it the fourth dimension, but I think it certainly makes for many interesting possibilities.

#### AphexDreamer

Those saying time travel isn't possible haven't heard of the effects of time dilation.

Time dilation is basically where under certain conditions time will move slower for the person meeting those conditions relative to outside observers.

The conditions are.

A. Relative velocity time dilation- The faster a piece of matter moves to the speed of light the slower it will age.

B. Gravitational Velocity- Two objects at two different distances from a massive object will pass through time differently.

Proof? Particles called mesons have a life-span of about 2.2 microseconds. However, when spun in an atom smasher their life span has been observed to be 7-8x longer than their stationary (normal) velocity. The velocity attained in an atom smasher is something like 98.9999998 percent the speed of light.

Also tachyons are a theoretical particle said to move faster than light and thus backwards in time.

#### cheesy999

words of warning - don't post pictures like that unless your including text, you can get in a load of trouble doing that

that said,would 1.21 gigawatts be enough power to get a car up to the speeds the OP described?

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#### digibucc

Actually, there's loads and loads of evidence saying that it wouldn't happen.
lol yeah, i'm like what? can't disprove?

Time dilation is basically where under certain conditions time will move slower for the person meeting those conditions relative to outside observers.
possible, theoretically - but that's based on current understandings.

there's no saying that in many years time we won't finally learn some crucial
piece of information that explains why it isn't possible - or definitely is.

until we have either done it, or proven it impossible - we simply don't know.

#### Raijian

##### New Member
words of warning - don't post pictures like that unless your including text, you can get in a load of trouble doing that

that said,would 1.23 gigawatts be enough power to get a car up to the speeds the OP described?

It's 1.21 gigawatts.

#### cheesy999

It's 1.21 gigawatts.
sorry i haven't seen that movie in ages, any chance of actually answering my question though?

#### digibucc

sorry i haven't seen that movie in ages, any chance of actually answering my question though?
none