I don't think so. We only exist in the present. We have memories of the past and articles of the past. We have plans and visions of the future but nothing we can hold or grasp. The future becomes the present constantly and the present becomes the past at the same time. So we can only exist in the present.

It is not possible to use worm holes because they will damage themselves because of radiations present in our enviournment

It is yet not possible but i think it will be possible to travel in future,but will naever be possible to travel in past , because if it would have been possible then we would have met people coming from future

YES you have a sound barrier and light barrier why not a time barrier.
it is not possible to travel the speed of light. we have no materials capable of surviving the forces etc. if we could travel the speed of light arround the world the amount of time it would take would be less than a second.If we went faster than light it is possible that we would break the time barrier.

TO achieve time travel matter would have to be converted to
energy to be able to travel at that speed. almost like teleportation.

The problems with reverse time travel are the contradictions presented, if the traveler interfered with the recorded version leading up to the traveler's attempt to retrace history.

Imagine what catastrophies would result if Hitler were successful in winning in Europe during World War II. Or, if someone kept the first human from discovering how to make fire without benefit of a lightning strike.

No, time and space continuity is dependent upon forward progression without interfering contradiction. There's no time travel to re-write history. What's done is done...

I think no :
If I went back to Henry VII court , where would I stand ?
Surely every space would be taken - I might "land" halfway into Henry, and halfway into his chair.
There would be no Vacuum, in the dusty air just waiting for me to arrive.

I might "land" halfway through a tree.

What if 30 of us went on a Virgin-Tours Time-Travel Excursion to ..... the Funeral of Abe Lincoln .

Where would we all stand ?
There is No SPACE waiting for us !
[I would demand my money back ! ]

Yes, Time Travel can be possible, in fact, we are all time travelers we travel in to the future, every second, minute, hours and days, are evidences that we travel into the future. But the big question is Can We Travel In The Past?

Yes. We Can Travel by Entering A Wormhole, Going Closely to the speed of light and etc. But there are some Paradoxes that you can encounter when you travel to the past, For example: the Grandfather Paradox. When you travel the past, there is a possibility that you can meet your Teenage Mother, and suddenly your mother became in-love with you, so you may never been born, because your mother didn't met with your Father. It's Just okay if we do not travel to the past, Because if "Time Travel Machines" are invented, some people will take advantage for that, they may change the future and the Present.

When you actually get in a wormhole, you may never know where is the exit maybe the exit is in the core of a planet, if you get out of the wormhole, you will just die.

I'd say, "no".

The atoms which you claim (as part of you, which are not excreted from you) are spoken for.

Traveling back in time (particularly before the time you would have been born) those same atoms are spoken for by some other matter.

Matter is conserved in this universe. It's a closed system. Conservation of energy is evidence of it - because matter is just another form of energy (just slower than the speed of light).

Atoms cannot be in two places at the same time... If you encountered the state in which your atoms existed before you were born, then you'd be dead - your atoms redistributed to the original condition that had existed.

There cannot exist a contradiction in this universe - it either cancels out (passively, to zero), or it would cause a cataclysm for the universe (disrupting all matter).

Either way - you no longer exist.

Thanks, Yoda; your view is akin to my (rather more simplistic) view.
If I were to arrive back at the Crucifixion of Christ - there would be NO VACUUM waiting to receive me.

Haha - and if my whole family had booked that Trip on "Vatican-Travel" , that's a whole lot of Vacuum waiting for us !
[and if we arrived a day late, what a 'waste of space' waiting just for "us"].

My point is, there can be NO empty space waiting for me anywhere in the Past - all was occupied by > other people, trees, walls - and atoms of the atmosphere .. . . etc

No because weres the time machine dummys! Yall have bad qustions!!!!!!!!!!!!!!!

I think you meant to say:

"No, because WHERE'S the time machine DUMMIES! Y'ALL have bad QUESTIONS!!!!!!!!!!!!!!!"

They're right next to the dictionaries...

Quite ryt there i must agree,hv u ever dreamd of something as if it was happening?and just as you were thinkng bwt it,it then comes to pass ryt before ur thoughts,but then again that could b expantion of ones imagination at sleep i supoze my uncle eeintsyn said "both th sun and the earth can b moving,unless your mynds are fixed on rest and motion"that statment he rendard after the argument of weather the sun or the earth is moving.this is my way of welcoming myself hello guys

But is it possible to travel in the opposite direction?

It is possible because of worm holes

It is not possible to travel forwards or backwards in time because if you are 20 years old and were to travel back in time 15 years or you were to travel ahead in time 15 years you would be only five years old if you were to go back in time or you would be 35 years old if you went ahead in time and since you are 20 years old at the present. That would make time travel impossible because it is impossible for you to be alive at 20 years old in the past or future sillies.

Also if you are twenty years old you would not be alive 15 years into the future at 35 if you just happened to die of an illness or was in an accident at 28 years old. And If you go back in time 25 years you would not even be conceived in your mother yet. So therefore get a life daydreamers!

I really don't know what is mean't by "Time Travel?" If it means that a person could arbitrarily travel to a time in the future and return to the present, I say no. Someday it may be possible to travel faster than light but does that really equate to traveling faster than time? I believe it is the same time everywhere in the universe at the exact same instant and once a moment in time passes it is gone forever. Time has no begining and will never end, it has always been even before there was an earth or even our galaxy.


Remember, light has physical characteristics and can be measured, time does not therefore in my opinion they cannot be measured the same way. We have determined how fast light travels but no one to my knowledge has determined how fast time travels because it doesn't travel, it just is.

What an interesting theory. If I could travel through time and everbody would want to try it, what would it cost our bodies, minds, spirits, souls, and the energies of life and the solar systems energies?

If we all travel through time to maintain society how would we protect the rights and bodies of the people who move us through time/

In a war if there was time travel on both sides, what would it do to the billions of living beings who would be affected by each side going back and forth through time/

NOt something I would want to experiment with.

Like to hear from someone who can travel light.

If we all are controlled through time travel or manipulation who would be the authority if someone was abusing the power?

We being connected at a high level as gods watchful eye, not to judge us before we screw-up, who would watch us fro our bad judgements?

I like the thought of splitting and rebuilding atoms, who is the scientist that can split and rebuild selves. If that is possible than can we rebuild selves via a time travel experiment like Star Trek where we go up and down through a portal then rebuild our selves?

You have confirmed something I have always suspected sympthy4@mail.com so I am not surprised! My father was a scientist who worked on the space program and researched ufo's and he had the theory that ufo's were time travellers...perhaps from our own past...returned to find a strange world peopled with folks who no longer recognise them Also [my thoughts] if you read about changes to human bodies after leaving earth's gravitational field, prolonged effects could deform us to look like the commonly depicted 'alien' ! Another thought: Love is eternal and outside controls of Time. Our spirits are outside time. Astral travel or Remote Viewing may involve leaving our bodies and thus outside constraints of Time;and we can reincarnate to find our loves in any time or place. Science is not outside spiritual realities, known popularly or not, think Metaphysics...'As it is below, it is Above' [?].

Time travel is cool

Appreciate your reply but I have to admit I do not understand a lot of the replies I read. I did not go to college but life is a college of sorts. But regarding time travel one thing is for sure it is not a round trip. I believe science will eventually develop a means where people might be able to travel vast distances in space but not by wormholes and other manifestations of Science fiction. There might be a time where people might be able to sleep for extended periods of time and when they wake up it might be a long time away and that's if science can stop the aging process in the meantime. To those people it would be like time travel. Or even today the process of freezing bodies in the hope sometime in the future science will develop a cure for what ailed them and restore them to a usefull life. that would be like time travel for them but not to anyone else. The one big question science has never defined is: what actually is time? It has no physical properties, you can't see it, feel it, smell it or hear it. So how can anyone manipulate it? Nothing can go faster than time because time has no speed. So when it is said that if you exceed the speed of light you can slow down time, I have to ask where in science has it been determined that the speed of light is the same as the speed of time. We measure time relative to how fast something occurs. When we talk about the speed of light we speak of something that has measurable properties. Science has failed in my opinion to identify the properties of time.

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Nocola Tessler thought so!

Good answer, Einstein and his relativity theories don't really address this.

Why is it you nuts always say "The govornment" (sic) is keeping things from us? I don't trust government either but you can't keep on falling back on the old " let's keep it from 'em for their own good" explanation for why there is no proof for your preposterous ideas.
Where is your proof for what you propound? When there is no proof, it is always: The scientists are in a conspiracy to hide this from us. What a bunch of bs. Put your proof where your mouth is. Scientific study and not suppositions are what is needed. When was your last scientific study on what you are so casually throwing out there?

You know just enough to show how uninformed you are. Read a book or article or two about your subject before you throw this stuff out there to people who really want to know (although they would be better off visiting Wikipedia or some other web resource).
I hoped, when I joined this website, that it would not have the usual attendant nuts. Apparently it has and you do a disservice to sane, however uniformed, people who just genuinely want to know.

Pleassssssssssse explain rationally what you posted

HA! LOL!!

Nicolai Tesla!! Use a dictionary, man. You"ll look a lot better on the net if you can spell!

Cool! But I don't think >c will ever be possible. Infinite expenditure of energy to accelerate to c of any appreciable mass, e.g. people. Comments? Otherwise, liked your answer.

This post is why i think i'll leave this website. too many nuts.

Well, what's done is done might be true for one version of the universe, but there may be an infinite number of versions. I'm not saying I believe this, but it could refute the 'what's done is done' thing.If branes might exist as some scientists have hypothesized, then alternate times for the same universe might exist or alternate universes might exist in the same time.
Just passing on thoughts from some reading I've done and I admit I just don't know, but the articles are certainly more plausible reading than some of the wild bs I've read today.
Wish there was a middle-of-the-road science discussion website that's between the 'way-over-my-head' and the lunatic fringe (of which this site seems to have plenty). Any suggestions?

There has been many theory's that time travel is possible but has never been proved are demostrated.

Yoda55 wrote: "The problems with reverse time travel are the contradictions presented, ... No, time and space continuity is dependent upon forward progression without interfering contradiction. There's no time travel to re-write history. What's done is done..."

To answer you last question first, I've just myself started looking for sites having a modicum of centroidal tendency. Can't help you there...

To riposte on your response comments (parallel universes, etc.) - There cannot be parallel universes for the one in which we reside, as the universal behaviors would be contradicted. Here's why:

1. I agree, that in *theory*, parallel universes are 'possible'. But, if parallel universes were *probable*, for each decision point (read as every 'causation'), then there'd be no definite outcome (or effect) as ALL would be occuring simultaneously.

2. Here's the kicker... There is conservation of energy in this universe, as best as can be determined by our measurements (the concept which can be extended to 'matter', since this latter is actually just a state of 'energy'). Infinite 'effects' to a single causation would contradict the conservation we observe. The reason for this last conclusion stems from the idea that matter which makes up objects here cannot simultaneously be elsewhere (particularly in another combination). The contradicting universes would cancel out.

What's here is here, and no place else. If it weren't so (and you somehow were aware of all other versions of yourself in parallel universes), then you wouldn't have to be asking this question... You'd already have the answer. Since you don't, you are unique - no parallel universes.

- - - - - - - - - - -
One additional thought, which occurred to me after this posting, was the very concept coupled with the phrase " 'parallel' universes"... By definition, 'parallel' universes cannot intersect. There is no interplay (crossovers from one to another).

If we're discussing 'alternative reality', where alternative actions are permitted to cause other reality threads to be initiated, then again there is a problem with a conservation of matter/energy which contradicts the fundamental universe behaviors we have identified and witnessed to date.

The subject of a parallel universe is in my opinion pure fiction. I like to keep things in simple terms. If such a universe existed that would mean an identical person would exist in two seperate universes at the same time. If that was true each would possess identical free will. That being the case each would have to think and act the same. If a parallel universe existed how could you prove it? If you tried to travel to the other universe, your identical being would do the same and wind up in your place. Since everything would be identical, how could you tell the difference? In order for the above to happen there would have to be some sort of physical and mental link between everything that exists in each universe to make them develop and evolve in the same manner. Wishful thinking and science fiction sort of go hand in hand but that does not make it reality.

Nope not at all.

Tecnicly time travel would be posible through a worm hole but the possibilety of that happening is very very very very slim. It would take energy equal to a star exploding to make a worm hole.

Thanks

Perhaps the lead question should have been, is a Wormhole possible? When you look at time travel, it is just like any other type of travel, you need either a vehicle or a transmitter and receiver (like radio and TV. The big hurdle is how are you going to get a receiver at where you want to go without one being there in the first place?

In the documentary Stephen Hawking's Universe Dr. Hawking believes time travel into the future via wormholes is possible.

He feels wormholes exist now at the quantum level, and that it maybe a machine can be invented to make them large enough for a human to pass through.

He does not think time travel into the past is possible because of paradoxes.

The example of a paradox given in the documentary has the time traveler going back one minute in time, and killing himself before the time travel happens.

If he his killed before the time travel happens, then he cannot travel back in time to kill himself.

Dr. Hawking feels there is a radiation that will degrade the time traveling wormhole and cause it to close before it really becomes stable.

This is just a "thought" experiment. At this time Dr. Hawking does not know how to express it mathematically, or physically test it. Before you shrug off his theory, remember that it was Einstein who embraced the practice of thought experiments.

Seriously, of course not!

Too true

Nope :)

Time is the product of mass and energy T = M E

ENERGY EQUILIBRIUM LIKE HOW GRAVITATION WORKS CONSUME TIME..TO TRAVEL BACK IN PAST AS WELL AS TO FUTURE IS IMPOSSIBLE CAUSE WE, OUR BODY IS MASS AND ENERGY THAT ONLY DEAL IN PRESENT TIME.

UNIVERSE CONSERVE TIME NOT FOR PAST BUT FOR FUTURE.
HOW IT CONSERVE? BY MASS AND ENERGY EQUILIBRIUM.

EXAMPLE: SUN AND EARTH GRAVITATIONAL VELOCITY IS THE SAME.

TIME IS THE PRODUCT OF MASS AND ENERGY T = M E

TIME ALWAYS DEAL WITH PRESENT BUT CONSERVE FOR FUTURE BY ENERGY EQUILIBRIUM

EXAMPLE

SUN AND EARTH ARE THE SAME IN GRAVITATIONAL VELOCITY TO CONSERVE MASS,ENERGY,VELOCITY SPACE AND TIME ITSELF.

If I were to agree or disagree, one might assume I understand what you have written, that would be an incorrect assumption on your part.

What I believe is that time is a function of how you decide to measure it, could be days, weeks, years, eons or nanoseconds. Each measurement is an inseparable function of the other and no matter which function you measure by it does not make any of the others go faster or slower.If something could go faster than the speed of light the speed of light does not change.

The prime question is: Is time travel possible? Assuming the commonly accepted definition of time travel is the sci-fi concept, I say no. With all due respect I believe time is an intangible. You can speed up a watch or slow one down. But time doesn't change.

Thanks for the answer! But does that mean time travel is possible or impossible?

I think that "185185" is mathematically challenged (i.e. either confused or inept).

Acceleration = the magnitude of velocity change.
Energy = Mass accelerated to it's limit.
Mass = the amount of matter collected in one object.
Time = delineation between one matter state to another sequential state (for the same object).
Velocity = the magnitude of distance change, over Time.

Let's examine your "formula", and decompose it:
T = Time in seconds (sec)
M = Mass in kilograms (kg)
E = Energy in kilogram-meters per second^2 (kg-m/sec^2)

sec = (kg) * (kg-m^2/sec^2) = (kg^2-m^2/sec^2) ???

Not likely.

E = (0.5) * M * V^2 (Einstein, remember?)

kg-(m/sec)^2 = (kg) * (m/sec)^2 = kg-(m/sec)^2
The reflexive property of equality checks out.

I have no clue what you are trying to say: "EXAMPLE: SUN AND EARTH GRAVITATIONAL VELOCITY IS THE SAME."

The Sun and Earth have two different gravitational ACCELERATIONS, if that is the idea at which you are driving.

You can check out from discussion in fate of universe, my name is rommel with user name there as quantom.

my equation t = me ( where energy is the product of mass multiplied by square of the speed of light)

the result is less than a second. it is symphaty with the speed of light which means light travel in medium of energies that results variation of its velocity.

therefore speed of light in universe is not always the same, this results changes in orbital velocity,and ecleptic orbit of earth. the other side of solar system is different in medium which light travel than the opposite side.