i don`t have any data but don`t u get the feeling sometimes of dejavu
and that u can change that sometimes ur sleepin and yet it feels ur awake
sounds weird doesn`t it?
Many theorist believe that time travel is only possible going into the future and that travel backward in time is impossible.
The theory goes that time is like a funnel that condenses chaos into order.
So going backwards in time would be going towards and into chaos.
Time travel is possible .......... I am traveling through time right now 
| jwellsy wrote: |
Many theorist believe that time travel is only possible going into the future and that travel backward in time is impossible.
The theory goes that time is like a funnel that condenses chaos into order.
So going backwards in time would be going towards and into chaos. |
It's an interesting point because logically, you'd think that going backwards would be easier than going forwards (since the past is aready set so there is something to go back to, whereas the future is undefined).
But look at it like this - if backwards time travel were possible, we'd know about it by now becuase someone would've come back and told us! | GProject wrote: |
But look at it like this - if backwards time travel were possible, we'd know about it by now becuase someone would've come back and told us! |
I think my head is going to exploded now. 
Sounds like a Star Trek episode or a job for George McFly to me.I think time travel is possible, I really want to experience it, haha~
Since I may go into my history and modify it.
Well time is only another piece of the universe just like three dimensional space. If we can move throughout three dimensional space and forward through time (the combination of which is called space time) we should be able travel through time.
tumbleweed beat me to it.. of course time travel is not only possible, it's unavoidable.. but only going forward
altho in a theoretical sense, time and speed are directly related.. when one travels at a higher velocity time slows down, if at an undetectable rate.. but if you could travel faster than the speed of light, you would actually be travelling backward in time, at least in the sense that our experience of time passing is based on our visual observance
| Quote: |
| when one travels at a higher velocity time slows down |
Well actually, time only slows down from the point of view of the person, not everywhere, just to kinda clarify. Part of relativity and such.Tell me the final conclusion
I want to send lot of people to the sixth century
where they rightfully belong
is it possible to transport back entire geographical area back in to the time? as in sci-fi novels 1632, 1633 series. Is time travel (besides the normal rate) possible?
Yes, it has been scientificly proven that there are two known ways to create a wormhole, which can connect different times as easily as diferent places.
Can we do it?
No, we need either
1: a substance known only as 'exotic matter', which does not violate the laws of physics, and could exist, but we have never found any of it.
2: more energy than the entire planet could produce. (Harnessing every last bit of energy coming from the sun might be enough.) As well as a huge metal tube about the size of Jupiter.
| adiitya_dahunk wrote: |
i don`t have any data but don`t u get the feeling sometimes of dejavu
and that u can change that sometimes ur sleepin and yet it feels ur awake
sounds weird doesn`t it? |
An impression of deja-vu isn't related to time travel.
Actually, these impressions happen because of
1- neurochemical reactions in your brain (I don't know the specifics..)
2- already existing memories (you've really been there before, only, you don't remember it clearly).
As for time travel, I don't really believe we will be able to do so one day. Plus, travelling in the future is quite scary... what if you travel too far, in a future where all life is gone. And how do you go back if you can't?Time travel in my opinion is impossible(part from normal life)
people might make machines that make you experience faster moving or something but time travel would be a disaster.
IF it were possible some idiot would probly change the course of the world. In harry potter they have the thing where if you see your self you change time, i believe something like that would happen. And wat if you changed time and you couldn't go back :S
or unless some person finds out wat worm holes do(in full)
| s43ros wrote: |
| Quote: | | when one travels at a higher velocity time slows down |
Well actually, time only slows down from the point of view of the person, not everywhere, just to kinda clarify. Part of relativity and such. |
Ehm, time does not slow down from anyones point of view. It's only if you compare "time" between the stationary and the high velocity guys you know that something is happening.
For both guys point of view one second will still be precisely one second.
Just wanted to clarify 
I think also that time travelling is possible, but i haven't heard about it.
It would be great to do that, but when you could visit your own past, it is very IMPORTANT that you can't do any actions that would change the future.
Travelling to the future is not acceptable. The future can't be taken seriously because the future depends on things in the past.
Example: If action 1 not will happen than it isn't possible that reaction 1 can be happen.
So as long that there are no experience is in this matter, i wouldn't discuss about it anymore.
time travel into the future is already possible, just maybe not how you would think of it. basic relativity. if you travel at some speed relative to something else, you experience time "slower" in their reference frame than they do. of course at the speeds we can achieve, this time dilation is not even close to noticeable.
for example, say you travel at a significant fraction the speed of light. when 1 minute passes for you, 1 hour might pass for your friend who is sitting stationary on the couch.
you be the judge. is that traveling into the future?
Ever since Einstein revealed his special theory of relativity, we've known that time travel—at least moving forward through time—is possible. Einstein didn't pull this theory, or even the notion that time travel is possible, out of thin air. Rather, he took the knowledge of the day, saw an inconsistency—a piece of a puzzle that didn't fit, so to speak—and thought about possible explanations.
Einstein's first major contribution to the study of time occurred when he revolutionized physics with his "special theory of relativity" by showing how time changes with motion. Today, scientists do not see problems of time or motion as "absolute" with a single correct answer. Because time is relative to the speed one is traveling at, there can never be a clock at the center of the universe to which everyone can set their watches.
| thealpha wrote: |
I think time travel is possible, I really want to experience it, haha~
Since I may go into my history and modify it. |
If there is anything the human race should keep its hands out of, it is the continueum. Just look what we are doing to our planet, I don't even want to imagine what would happen if we started screwing with time.
Personaly I view time as a web, every choice every person makes breaks it into two additional timelines. You experiance the "timeline" you do becuase you made that choice and are on that plain of existance. There is no way you would ever be aware of any paralell timelines to your own since you exist on the one. Furthermore, time travel would be possible accept for the few problems you would have:
#1 - If time is not linear how could we design a machine to go "forward" in it.
#2 - If the future is undefined, how would we avoid traveling into nothingness. What effects would that have?
#3 - Assuming my theory is correct, if you went forward how do you know that the timeline you landed on would be the one in your "line of witness", furthermore if you went "back" what would stop you from "landing" in a completely different line of witness from the one in which you originated.
#4 - What if in our attempt to time travel we by mistake move entire sections of the timeline, therefore taking us from present to future by removing the in-between.
I simply think that time is one of the things we may never ever understand. I also think its one of the things we should not mess with, because certainly it would be the hardest to fix no?It is my opinion that time travelling is possible, but the real question is: Can we make it possible? Do we have the technology or capability to make it possible?
And we'd have to come up with sufficient evidence as to what time travel is. Is it travelling faster than the speed of light? Etc. There's too many unknowns for now.
I think it remains a dream, for the time being anyways.
How do you know time isn't traveling backwards right now? That instead of learning from your experiences in life, you simply forget things? You can demonstrate no proof that time "flows" an either direction.
| Tac-Tics wrote: |
| How do you know time isn't traveling backwards right now? That instead of learning from your experiences in life, you simply forget things? You can demonstrate no proof that time "flows" an either direction. |
Are we throwing out the second law of thermo? | HoboPelican wrote: |
| Tac-Tics wrote: | | How do you know time isn't traveling backwards right now? That instead of learning from your experiences in life, you simply forget things? You can demonstrate no proof that time "flows" an either direction. |
Are we throwing out the second law of thermo? |
Your feeble biased mind has tricked you. Usable energy does not decrease over time. It increases! | Tac-Tics wrote: |
| HoboPelican wrote: | | Tac-Tics wrote: | | How do you know time isn't traveling backwards right now? That instead of learning from your experiences in life, you simply forget things? You can demonstrate no proof that time "flows" an either direction. |
Are we throwing out the second law of thermo? |
Your feeble biased mind has tricked you. Usable energy does not decrease over time. It increases! |
Oh thank God! Now I can continue driving my Hummer! | HoboPelican wrote: |
| Tac-Tics wrote: | | HoboPelican wrote: | | Tac-Tics wrote: | | How do you know time isn't traveling backwards right now? That instead of learning from your experiences in life, you simply forget things? You can demonstrate no proof that time "flows" an either direction. |
Are we throwing out the second law of thermo? |
Your feeble biased mind has tricked you. Usable energy does not decrease over time. It increases! |
Oh thank God! Now I can continue driving my Hummer! |
Sadly for you, if usable energy decreases, then the cost of gas goes down, reducing your need for that energy. | tumbleweed wrote: |
| Time travel is possible .......... I am traveling through time right now |
I agree too! I asked my friends about that and they all ... whatever! | Tac-Tics wrote: |
Sadly for you, if usable energy decreases, then the cost of gas goes down, reducing your need for that energy. |
Sadly? Lower price and lower need means even less out of pocket. That's a good thing in my book.
But back on topic 
Here is a nice little link to get your minds working on what real physcist think about wormholes and time travel. Lots of reading I know most of you won't bother with, but I know some of you will wade through it. I think the page is a bit old and doesn't address some newer theories, but it's a good starting point.
http://www.lifesci.sussex.ac.uk/home/John_Gribbin/timetrav.htm | HoboPelican wrote: |
| Tac-Tics wrote: |
Sadly for you, if usable energy decreases, then the cost of gas goes down, reducing your need for that energy. |
Sadly? Lower price and lower need means even less out of pocket. That's a good thing in my book. |
But you would spend all the money you make buying gas by going to work. | Tac-Tics wrote: |
Sadly? Lower price and lower need means even less out of pocket. That's a good thing in my book. |
But you would spend all the money you make buying gas by going to work.[/quote]
Now THAT doesn't make sense.
But more importantly, and back to the topic, did anyone read the article I linked to above? Or a better one?If you fly from England to North America on a very fast jet (ie Concord), you arrive at an earlier time than you depart.
My belief is that you cannot travel back in Time (as already explained as you speed up time dialation blah blah you can travel forward at a faster rate all relative..) however unlike some who believe once you go faster than light time goes backwards I believe that time to an extent stands still. However if you where to travel away from earth at a speed faster than light then stop, then look back towards earth (somehow with alot of detail) then you would see the light from earth that started its journey before you left hence giving the impression of seeing into the past.. this is as close to travelling back in time I believe you can get.
Dejavu is another interesting thing I believe that our minds are predicting ever predicting trying to guess what is likely to happen next forming the images.. occassionally it gets it right and Dejavu is your subconcious shoving it into your brain saying "I guessed it first" Time travel is only possible if you'd accept the theological condition that no matter what you do or try, you are destined to do everything that you're doing. The future is impossible to define unless everything has been pre-decided for us, don't you think? That would require some higher force which controls this (I'm not a religious kinda person). Anyways, without that, a 'future' can't exist. As for the past, it can't be travelled to even in theory.
One exception to time travel theory in both directions would be Quantum Mechanics. There is a theory that time and space is decided by human intervention, in which our own choices create different and seperate universes, also, trapping different points of time in different universes which are identical at the time in a Quantum Foam which might allow us to break into it and into the other side of the wall of our universe.
YAY FOR STUFF EVEN I DON'T UNDERSTAND!!
To the future, I believe we can, but back to the past... Maybe not. You see, it already happened, well, if you leave out the 'Undo' button on most programs. In realife, it's difficult to undo anything, unless it's possible.
back to the time it's impossible
| jaime wrote: |
| back to the time it's impossible |
May I see (or hear) your evidence? | adiitya_dahunk wrote: |
i don`t have any data but don`t u get the feeling sometimes of dejavu
and that u can change that sometimes ur sleepin and yet it feels ur awake
sounds weird doesn`t it? |
Without reading the other posts: yes, it is possible. But not the way you're used to in the movies, like the GOOD Back To The Future (I love it).
Some theoreticals physicists have concluded that it is possible to transport particles through time. Some claim that they sent particles to the past. The most elaborate time travel would be possible only at the time the first "machine" is built, and the travellers would not be able to come back in a time prior to the exact date of the construction. I can't explain it yet, I'm a newbie at my Physics course. I extracted this from a docummentary from Discovery Channel 
I'm not sure, I've thought very deeply about this concept before but never got anywhere further than I was before. It's way too complicated for the human brain to even properly consider. Practically everything is a paradox or nothing is a paradox I find, it depends on what theory you take.
Everything you do if you travel to the past would implicate in a paradox. Think about it, if you disagree, I tell why i think its impossible but im one of those people who dont beleive in things unless i got good proof
| Da Rossa wrote: |
| Everything you do if you travel to the past would implicate in a paradox. Think about it, if you disagree, I tell why |
Most of the paradoxes apply only when you think of time as 1 dimensional but with time as 2 dimensional they are not present. I know its hard to grasp the theory of 2 dimensional time but think about it and it does make sense
Anyway one thing no one mentioned here and i think its a major problem with time travel. And that is space travel, couse you can't do any time travel without actually travelling through space too, no one even mentions this in movies about time travel. Couse if i just now travelled through time lets say 5 minutes back there would be nothin there, couse 5 minutes back the whole solar system was somewhere else in the universe, couse earth, solar system, galaxies... everything is in motion so if we wanted to travel in time we would need to calculate and travel in space too so we would be able to hit the correct position of space we want to travel to in that time.
Ok enough of my thoughts i am starting to confuse myself. Not at all, Sappho, you made it perfectly clear. Indeed the MilkyWay has it's rotational motion, with a period of 250 million years, or 8x10^15 seconds!! Considering the Earth average radius (position) in reference to the galaxy centre, 25,000 ly, its tangencial velocity would be 1.92x10^17m/s...Think about it... in 5 minutes, or 300 seconds, the Earth would have moved 57600000000000000000 metres!! This is something like 6100 light years! Then tell me... how could Doctor Emmett Brown, from Back2Future, develop something that travels through a interval of time of 30 years... this would mean distance of... 1,8x10^27m... figure it out.
| Da Rossa wrote: |
| Not at all, Sappho, you made it perfectly clear. Indeed the MilkyWay has it's rotational motion, with a period of 250 million years, or 8x10^15 seconds!! Considering the Earth average radius (position) in reference to the galaxy centre, 25,000 ly, its tangencial velocity would be 1.92x10^17m/s...Think about it... in 5 minutes, or 300 seconds, the Earth would have moved 57600000000000000000 metres!! This is something like 6100 light years! Then tell me... how could Doctor Emmett Brown, from Back2Future, develop something that travels through a interval of time of 30 years... this would mean distance of... 1,8x10^27m... figure it out. |
Because the gravity well of the earth acts as a 5th order stabilizer that actually bends the the travellers timeline to match physical movement in this 4D space. 
Did you sleep though movie physics? | HoboPelican wrote: |
| Because the gravity well of the earth acts as a 5th order stabilizer that actually bends the the travellers timeline to match physical movement in this 4D space. Did you sleep though movie physics? |
Oh how could we forgot the movie physics, its the same one that couses the "running paradox" you know when a bad guy running at full speed chases his victims that are barely walking and still their distance is kept constant. | Quote: |
Oh how could we forgot the movie physics, its the same one that couses the "running paradox" you know when a bad guy running at full speed chases his victims that are barely walking and still their distance is kept constant. |
Oh, wait... this discussion may extend to movie goffs, When Richard Feynman developed his 'Feynman Diagrams', he was trying to show how photons (or maybe it was electrons) interacted. The only way some of the interactions made sense was for a particle to travel backwards in time. It is a little tough to explain without the diagram in front of me, but it does make sense and explains the interaction very well.
| Da Rossa wrote: |
| Not at all, Sappho, you made it perfectly clear. Indeed the MilkyWay has it's rotational motion, with a period of 250 million years, or 8x10^15 seconds!! Considering the Earth average radius (position) in reference to the galaxy centre, 25,000 ly, its tangencial velocity would be 1.92x10^17m/s...Think about it... in 5 minutes, or 300 seconds, the Earth would have moved 57600000000000000000 metres!! This is something like 6100 light years! ..... |
I totally agree with you, but the numbers seems wrong somehow. 6100 light years in 5 minutes?Refer to Albert Einstein's works. I think one of them concludes that time travels slower or something for something that moves faster than it would be normally. Compare with the experiment with an atomic clock onboard a fast moving train. Time slowed down.
Astronauts in space, age slower than they would if they were on ground.
Seriously guys. Something is going on that we don't really know. I think having a "dream" whats gonna happen later on, is not just a dream. I dunno I get these dejavu (sorry about spelling 
) dreams every week, and when I do, I can't keep my self from doing the same as I did in my dream. Because I'm so excited, I start making an expresion on my face that makes the surounding chang... For example, not to long ago I had a dream that me and my friends were gonna go to this place to ride our bikes and talk about Eastern bikes. This time was different, because I had that dream just the night before and I remembered it before I came to the place!! Like I knew it was gonna happen before I actually got there! When we finily started to talk about Eastern Bikes I got so excited I got these goose bumps, and my friend noticed my quetness and my goose bumps.. Our conversation changed because I started acting differently that I did in my dream! I hate that, every time I get these "dejavu" (again ) I get goose bumps and I always change the topic.
Other than seeing something into the future, I sometimes get into this happy mode. It happened to me once on my vacation in Lithuania. I was eating food, with my old friends, there was absolutely nothing on my mind, and it was a nice come evening. So everything is good, I'm really happy to meet my friends, their talking about something without really noticing me. And I just sit there and I notice how I'm not thinking about anything! Try to do that, I can't just do that on purpose!! While I was with no thoughts, I swear the only sound I hear is something simular to bass. only deep low vibrations. My friends say something really low, low voice, and everything seemed to be in slowmotion. That happened for like 2 seconds. Thats like the longest time I ever been in my happy mode. Again, I got my goose bumps . I talked about this with my cousin, she said she gets that too, in both times (me and her) everything was really come, and we were really happy at that time. That didn't happen to me once, I had that feeling in basketball court too. Again it was nice come evening, my friends, all happy, and I just start seeing in slowmotion!! Every time I go like WTF is going on, I think of a thought like "This happend to me before" and my happy mode secion emeadiatly ends. I talked to other friends, it only happenes to my cousing and me, from all of those that I talked to. Well most of my friends, got dejavu ( ) at least once in their life. do a search for John Titor...an incredible story....or it was up untill 2005 when the prediction failed to realise
Of course! I have always believed in time travel. But I only believed in time travel that would let you travel to the future. I have never believed in time travel to the past. Considering that if you went to the past and killed your mom before she gave birth to you, then you were never born. But if you were never born, how could you have come from the future and kill your mom if you were never born? That wouldn't make sense. But traveling into the future, does.
| -SonyGamer wrote: |
| Considering that if you went to the past and killed your mom before she gave birth to you, then you were never born. But if you were never born, how could you have come from the future and kill your mom if you were never born? That wouldn't make sense. But traveling into the future, does. |
Maybe if you actually read the posts you would know that this paradox is nonexistant if time has 2 dimensions for example. Lets use complex numbers for demonstration, you were born lets say:
1982+xi where x is the value for the 2nd time dimension of our timeline, i used complex number couse the imaginary part of em exactly fits to my theory, you know its unreal Ok, lets say you want to go back to the 1982 from 2006+xi but you will not end up in 1982+xi but rather in 1982+yi couse just your unexpected presence disrupted the timeflow and the timeline moved itself in the 2nd dimension. So if you kill yourself in 1982+yi of course you will not exist in 2006+yi but that doesn't affect you in 2006+xi from where you came.
Hope its clear, of course it hypothetical, but what isn't when we are talking about timetravel. I can't belive that nobody pointed this out : (or I didn't see) There are no paradoxes !!!!
You could go back in time and do anything and modify anything because :
At the present time it has already been done. You see?
But there are some variansions based on probbability as so : If you know for sure ypour dad is alive you can not go back inn time and kill him because whatever you try it has already failed.But, if someow you don'y know for sure if your dad was killed, there is the chance that you (from the future) have killed him and you could do that. In conclution, anything you do in time travel you wiill not change anything even if you try ( which you unchangebly will ) I don't care what ppl says Time Traveling is possible! When humnas have learned how to make a spaceship to fly with the light speed you can travel in time! But the problem is you will only be able to go forward in time not back!
I think that it is possible but perhaps not in the way we thought of.
I believe that travel in the time is possible. Eventhough,we'll never know its effect till we can do it ourselve.
From many scientific thoeries said that there are posibilities to travel in the time ,if we can go faster than lightspeed or if we can create blackhole or whatever. So, one day we can do the thing that was said in the theories and can traveling in the time to future or past.
But what will happen if you meet yourself from the future or your going to the future to meet yourself. ( In another word, "you" in the future meet "you" from the past.) It may be fun to see yourself talk to another yourself. But it can be the problem like the other one said, "What happen if you go back to kill your own mother before your born?" or something like this. Therefore, I think there are possibilities that when we go to another time, our memory will be erase to make us to new people. Or may be there are somethings prevent us to see ourselve in past/future (and changing the time line).
Time travel is a question of definitions..
If you want to go "back" to the place where you are young or to earth before man etc... sure why not? that is space travel actually. Time travel is something different and goes on all the time. In our heads it goes forward. One infinitly small step after the other. This is defined.
By the definitions set by humans time is the glue that connects what has happened with the now and thus implicitly also the future. Time functions as an index or variable and creates a sense of order of events. It is not much different from how religion defines gods in order to explain the world. The notion that time is an increasing value or "forward going" vector is just a defintion made by man based on our emotions about time. We like to feel we are moving forward in time, age is an increasing number, etc. Moving backward has never been popular for man since it is related to retreating.
Now lets say you move back in time. You would do nothing more or less than that. Move back in time together with everything else that is affected and indexed by it. Yes that's right. Time includes you! The will to stand beyond time have been present ever since it was invented. We want to live forever, slow time, speed time and bend time to our will. It comes along with the notion every single human have that they alone are the center of the universe. We think: "if I could make time go backward then it would affect everyone else but me. Because I'm the center. I stand above the rules."
Sappho's idea of making time complex adding a imaginary part would pretty much screw up every physics law there is. It would also destroy every definition of time and it would not be time travel anymore but travelling to a parallell universe where the year is 1982 where the imaginary part of his time would be the index of this universe. Time would still be runnning forward for you, the only difference is that you would be moving your sofa-friendly ass from lets say London 2006 into London 1982.
Math-warning: (if you get headache from math skip to the ***)
To better explain the above. Consider a space consisting o an infinite set of operators and functions dependent on an infinite set of variables. This space should be able to define and describe any object and any phenomena that could be applied to the object, for instance the whole universe and every law of physics. Now lets apply an infinite set of boundary conditions defining subspaces of their own. These can be chosen so that the intersection of the subspaces, where all these rules and conditions apply, will describe a curve such that it is continuous for infinity in both directions and that every point of the curve will grant a function that describes our universe for this very point of time. This curve is what we often refere to as a timeline and its tangent is the time vector. Moving in the positive direction of the time vector will move you forward in time, in its negative direction backward. This is a valid mathematical reasoning for the definition of time as an index for which every value corresponds to the state a "frozen" universe have at this point of time.
Sapphos time travel would then be the same as if you ceased to exist along one timeline and started to exist along another at your specified time and place. *** end of math-ache
Please note. Time includes you and travelling in it affects you as well. Hypothetical travel between timelines is not time travel!! There are no paradoxes as sappho explained! Killing yourself in London 1892 will not affect the timeline in which your journey started.
As you can see both the philosophical and the mathematical reasoning with time beeing the index of events imply, as yazz wrote before, that the past, present and future is set. How can it not be? If the present is a product of the past then the closest future is just the product of the present. Iterating this it is easy to see that the future is set. Freedom and choice is then rendered to a mere illusion which is another reason for us to dislike our captivity in time and another reason for filmmakers in hollywood to make just one more movie about time travel.
over and out.
=)
I believe that time travel to the past is impossible. Traveling to the future is a whole diffrent thing. Time is relative to the speed of an object, when a object moves at faster speeds time move slower for that object and faster for the objects traveling at a slower speed.
This idea is based on the idea of shift to red. Which i believe was proved when space ships that traveled to the moon came back with the clocks a few seconds behind than the ones on earth. If we could move at the speed of light at will then we can travel to the future based on the time at which we traveled at that speed.
I don't think it is possible and it also won't be in near future. Maybe in next century, who knows? Time travel, huh 
sounds facinating.....
Who on earth wouldnt love love to know ab their future before hand and be secure..
Who wouldnt like to know what is goin to happen next and take precautions to avoid some disaster.
who wouldnt like to know when he/she will die.. ohh before dying who wouldnt love to know who is the girl/boy he/she is going to get married with..
which student wouldnt want to know the questions before taking any exams....
who wouldnt want to know what the future holds for each one of us....
BUT BUT.......
who would want to live knowing his date of death...
which team would want to paly knowing it will lose/win...
who will make any girlfriends knowing his/her partner is someone else....
what if all the businessmen know where they would get profit n invest in one particular business???
what if the students know their marks before giving exams....
SO, the biggest thing we know abt future is that | Quote: |
| WE ALL HAVE TO DIE ONE DAY |
so better not to worry abt small things that are goin to happen in our future days n enjoy as much as we can...
tame travelling is a good idea i guess....what do u think?????????? | rorasa wrote: |
I believe that travel in the time is possible. Eventhough,we'll never know its effect till we can do it ourselve.
From many scientific thoeries said that there are posibilities to travel in the time ,if we can go faster than lightspeed or if we can create blackhole or whatever. So, one day we can do the thing that was said in the theories and can traveling in the time to future or past.
But what will happen if you meet yourself from the future or your going to the future to meet yourself. ( In another word, "you" in the future meet "you" from the past.) It may be fun to see yourself talk to another yourself. But it can be the problem like the other one said, "What happen if you go back to kill your own mother before your born?" or something like this. Therefore, I think there are possibilities that when we go to another time, our memory will be erase to make us to new people. Or may be there are somethings prevent us to see ourselve in past/future (and changing the time line). |
yes, I agree with this, that time travel may be possible. I believe that anything is possible, but not everything is possible.
According to theories, if we would be able to go back into the past, it would be a different dimension compared to the past that we have known. And in this way, you are prevented from making changes to the dimension that you previously existed in. Maybe, it is because your very existence in that past, makes it a different dimension, it is not the same. So you would effectively be trapped never to return to your normal environment (or dimension).
Also, if the speed of light barrier may be broken, time would go backwards. ordinary speeds = normal time speed
near light speed = slow time
speed of light = time stops
beyond? = may reverse?
well, photons get all the fun. But if we were to do these, only our fragments would reach the past. or we would use "exotic matter".
All of these are juz theories but remember that in the past, we never thought that we would break the sound barrier because it was the limit.
Bottom line: it may be possible, but the price is juz too high both time and energy. adding to the fact that it is impractical...I come from the future to let you know that time travel is possible because I just did it. True.
I can tell you things that will happen to prove it.
Like: people will go to the moon (for real).
or: Always Kidding will win the second horse race on 23rd November 2078.
Impressed?
I think it is possible. The answer lies in particle phisics. Einstein had a theory which was prooved. I myself am nt sure of it but i know an expert mathmatition who told me all about it. It does have something to do with the speed of light. An interesting fact is that if you were to look at a star now you would being seing it in the stone age because the light travels too slow. It is a facinating subject and we as humans have barely touched the surface. Pleas send me any links you have on the subject.
I don't know about backward time travel but we r time travelling forward now..
The question is can we change the speed of the time travel. I'm not very sure - but there is some (Einstein's ?) theory that if we travel close to the speed of light - our time goes slow.
So if u went on a spaceship really fast, and came back to Earth really late - U'll be like Rip Wan Winkle - All ur realtives so old , u still young
You are correct. it definetly hassomething to do with travelling at the speed of light. Einsteins teory was proofed before. They used tiny particles and sent them around a tube at light speed. Then they did some sort of test on it and the theory was right. The particles had not aged much....
| Terrasis-Cian wrote: |
| You are correct. it definetly hassomething to do with travelling at the speed of light. Einsteins teory was proofed before. They used tiny particles and sent them around a tube at light speed. Then they did some sort of test on it and the theory was right. The particles had not aged much.... |
Not heard that proof before. There are several standard proofs of relativity. Time Dilation is the effect in question and both Special and General relativity predict this effect (time 'stretching') due to different causes. Special relativity predicts the effect of high velocity on time dilation and General relativity predicts the effect of gravity on time dilation
The standard 2 experimental verifications that I know are :
1) Atomic clocks were synchronised and then 1 was fitted to Jet planes which were then flown around the world at high speed, the other remained at the reference location. On later comparison there was a difference in the times in line with that predicted by relativity.
2) Decay of the Muon particle in the atmosphere. A particle called a Muon (or µ Meson) is produced in the atmosphere by a known process (cosmic ray colliding with air particle). The particles are plentiful and therefore offer a good test subject.
The Muon has a lifetime of only 2µs (2 microseconds) before decaying into other particles. By capturing Muons at sea level it is possible to show that they must have undergone time dilation because the time interval since their production is greater than the lifetime of a muon under non-relativistic conditions.
If you want to know more about time dilation then I wrote a little paper on it a while ago which you are welcome to view/copy/edit/amend/distribute.
http://real-science.org.uk/resources/timedilation.html
Regards
Chris"Time travel" forward in time is very possible, and this is basic scientific knowledge, because of special relativity. There should be little dispute there.
Time travlel "backwards" in time I believe is also possible, but not in a sense a la "Back to the future", but rather within the "multiverse" conceptual framework. There are theories that travel beyond the speed of light actually reverse the flow of time, but to solve the time travel paradox of running in to yourself I guess the multiverse theory is very elegant. Accoring to this there are a infininte number of alternate universes in which every possible outcome on quantum level is realised, and thus every possibility exist simultaneously, only we can never know about them.
We are only beginning to expore physics, and there is little reason to belive that time travel won't be "solved" in the future.
| mephisto73 wrote: |
| "Time travel" forward in time is very possible, and this is basic scientific knowledge, because of special relativity. There should be little dispute there. |
Agreed - this is theoretically explained, experimentally confirmed and observationally supported. There is as little doubt as with any solid theory about this.
| Quote: |
We are only beginning to expore physics, and there is little reason to belive that time travel won't be "solved" in the future. |
It might be worth mentioning the work of Ron Mallett in this regard. He is actively engaged in building a time machine at the moment. He is basing his work on the theory that distorting space is equivalent to distorting time. He is using a powerful 'ring' laser to distort space. Light causes space to bend (according to the principle that mass and energy are interchangable) and Mallett believes that sufficiently 'slow' light rotating in a circle, causes spacetime to bend more. He hopes to use this to build a laser machine which will twist spacetime into a loop which will then allow timetravel. A simple diagram would look like :
Personally I am not convinced by the theory.Currently light is slowed by passing it through different media and it seems to me that this is not equivalent to slowing light in empty space which is surely what is needed. I cannot see that slowing light in a medium (say sodium) is going to enable that light to bend spacetime. I suspect the whole idea is based on a misconception, but, hey, I'm no professional physicist and he is. If he is right then his machine should be able to twist spacetime using relatively little power. Theoretically the procedure is possible according to conventional relativity, but the problem is that the energy required is massive - way beyond what could be practically harnessed, short of tapping into a blackhole directly which is not going to happen anytime soon.
Either way we should know fairly soon if the theory is sound.
I have a £5 wager with a physicist friend that it is unsound so I'll be watching
Regards
ChrisYeah time travel is possible, but it seems from the general relativity that we can travel only to the future and the past is forbidden to us. But who knows, the physical iew on this world is changing from day to day and we can modify our ideas one day.
I think time travel won't be possible because I believe that what happens cannot be modify or amend. If this could happen, It would have a great conflict between the past and the present. If you come back from your past and modify some unwanted happening on your life or something. It will probably change your future and history. Most of the things in the world is possible. If it is impossible - say I will Make it Possilble. But can you stop the time. Open the battery from your watch and don't say you have stopped the time. If you will say like that, then I will say you have stopped only your watch, but the time is going on. Then think like me and say "Is Time Travel possible?". We are not sure on what will happen in next 5 minutes. If we will go 5 minutes to the futer where will we go?
I am travelling forward in time as I write. Very slowly though, one second forward a second. You are too, slowly moving in time, if we wern't doing so now I wouldn't be typing on this keyboard and this post wouldn't exist.
You expiriment and see if you are, I know I am.
I have no doubt that it is possible, but achievable or likely in this day in age? That's an entirely different issue.
| SmartIcon wrote: |
| Most of the things in the world is possible. If it is impossible - say I will Make it Possilble. But can you stop the time. Open the battery from your watch and don't say you have stopped the time. If you will say like that, then I will say you have stopped only your watch, but the time is going on. Then think like me and say "Is Time Travel possible?". We are not sure on what will happen in next 5 minutes. If we will go 5 minutes to the futer where will we go? |
The important concept, which most miss, is the whole basis of the theory - that of RELATIVITY. Time does not change in isolation for one individual. It changes RELATIVE to another point of reference (in relativity theory the points of view are called 'frames' of reference). The individual's time does not change, only the relationship of that time to the time of other places or observers.
Physics uses the concept of clocks to explain this and people often make the mistaken assumption that this means it's some trick and only the clock itself changes, not the real 'time' of the observer. This is a wrong assumption and based on faulty logic...
Regards
ChrisWell we can deduct that time travel to the future is possible. While I would like to think time travel to the past would be possible, I highly doubt it will ever be achieved. There are simply too many problems, both physical and philosophical, so I highly doubt it can be accomplished.
Although I did hear about a study of a theoretical scientist that said it is possible, with a limit being that you can travel to the past up to the point where you left. It got very complicated with the explanation but basically it came down you you can not travel back in the past farther than the time at which you leave on your journey. Which sort of makes sense.
I don't have any idea if it's possible. I don't know theories of Einstein or anyone else. Thanks for all your posts, I learned something new. Wow, if time travel is really possible, then that would be so cool.
Since no point anything to open Vertex, and nothing history about Time Travel in human ancient story, it will be hard to traveling time
i think its not posible
otherwise...
if we know some another dimension are HEAVEN and HELL
maybe someday we can open HEAVEN and HELL dimension but...
do you want see Jesus , or See Lucifer:twisted: ...just up to you
Demon cannot manipulate Time see Relevation
only GOD can manipulate Time see Genesis
metom Can someone give me a link to the sites that you find all this information?
I think time travel isn't possible because time can't really decide itself, for example, if you go in the future to see what you are going to do for a project (came off the top of my head) and go back in time again and use that idea, it's not really you thinking, it's nobody thinking. This also means that say having a crystal ball that predicts time (or another time predicting object) is impossible.
There are other paradoxes which make time travel impossible too well apart from how you and I are travelling (obiously).
If my reasoning is fuzzy, please excuse me because I'm a little drunk at the moment, but I'll try to clarify this tomorrow if I'm not clear now.
Basically, I tend to agree with the theory of muliple realities. Whenever you make a disision a new reality splits off where you make the other disision (or if there are many coices, there will be one new reality for each possible choice). So, time travel may have happened. Someone from the future comes back to 30 years ago and changes something: we may or may not ever see the results of that change, depending on which splinter reality we live in.
The fact is, it really dosn't matter, because what has happened, has happened. If you try to go back and change something you will be splitting off another reality where the change you made will be fact, but this reality would continue to chug along as if nothing was different.
(So, maybe there is a reality where the Cuban Missle Crisis turned into a full fleged nuclear war, but we have been spared that because a time traveler came back and had a talk with Kennedy, spliting off a new reality where it didn't happen. Whereas there is a 'you' in a parallel reality who is living in a radioactive world right now.)
Anyway, whether you agree or not, one point is irrefuteable -- we are all time travelers: moving forward one second at a time.
Peace.
If we could turn back time.... baby.. the song... (off topic)
Anyways. I think that if we travel faster than light and it really enters the past.. wont we collide with ourselves 0.0000001 miliseconds ago?? as in .... 0.0000001 miliseconds ago you are at normal time then you go back time and see and bump into yourself... SPLAT 
Either way... Einstein could have been a time traveler.. Newton too... who knows... but i heard you can only travel back to when a time machine is invented.. There is a theory whereby particles called tachyons, which can travel faster than photons, should be able to change what we perceive as the natural order & laws of time, and the passage of time.
I think that, considering this and laws of quantum uncertainty, event in the future could possibly be engineered to affect the past. I would think applications would be relevant to the field of quantum computing, the use of highly contrived nano & femto structures to acheive pre-set goals.
The above would be realised through the acertainment of a definate resolve on the nature of quantum systems, whether nature obeys theories along the lines of Bohmian mechanics, or many-worlds theory. A concensus would come first.
On another note, it is widely thought - especially in Sci-Fi writing - that if one could travel to the centre of a black-hole, the physics may permit a time-travel experience. However, no-one, I believe, is 100% sure of the real situation within a black-hole; what is very certain about these objects is that to get to the singularity at the centre, you would have to endure horrific forces and would undoubtably be crushes and warped and ripped apart before experiencing anything else. Also, it is likely you would only be able to jump forwards in time - and you would be a meat smoothie.
- -does anyone know what the speed of atomic particles is compared to the speed of light? i imagine the speed of light is the constant used by einstein for a reason...i mean, for time to be relative, does one have to compare states of motion and time relative to the maximum velocity possible...or is the speed of light the threshold that mathematically turns the value of time into a negative, or reverse incrementing value?
--just a thought - -
kgc
Yes and no.
No we can't travel in the future or pass, just becuase when you are in the process of operate the bending of time, time pass already. Remember, day, minute, second, are only Earth unit depend on the sun and Earth. Time, is there even such thing as time? Remember one thing, if our base of science is wrong, everything we built base on it is wrong. Therefore, if Earth don't really travel around the sun, then our time is wrong.
Yes, because when you are reading this message, you are already traveling time to another second or so.
I am not sure if time travel could be possible, I am certain that it wont be a good invention, Imagine all the disaster that a time machine could cause. All the movies that have talked about time travel end in the same thing, the greed of men always use the time machine in a bad way.
| jwellsy wrote: |
| Many theorist believe that time travel is only possible going into the future and that travel backward in time is impossible. |
This is true (for me) as i'm an addicted EOS reader and this is also ''proven'' a few times. people that go to space and stay there for 791 days would only be away from earth for 790 days so tryto figure out what that means, i needed some to do it | jwellsy wrote: |
| Many theorist believe that time travel is only possible going into the future and that travel backward in time is impossible. |
This is true (for me) as i'm an addicted EOS reader and this is also ''proven'' a few times. people that go to space and stay there for 791 days would only be away from earth for 790 days so tryto figure out what that means, i needed some to do it
| Animal wrote: |
| Please don't double-post. Use the EDIT button instead. I've merged your two posts for you. |
| adiitya_dahunk wrote: |
i don`t have any data but don`t u get the feeling sometimes of dejavu
and that u can change that sometimes ur sleepin and yet it feels ur awake
sounds weird doesn`t it? |
A small part about the dejavu things, sometimes you have the feeling something that happend recently or something that is still going on allready happend to you once, James van Praagh once had an explanation for this;
The human brain consist of 2 parts that constantly work together however it is possible that sometimes.. very sometimes the 2 parts don't work together and then i'm talking about a time of miliseconds. During this time ou might have been expirencing something but one part of the mind registrates this but puts it's far away in your mind as af it happend 3 months ago. While the other part of the brain is still functioning normal and is expieriencing the ''it'' that is going on the way it should. and because of this it might seem that something allready happend. | FunFunkyFritz wrote: |
| s43ros wrote: | | Quote: | | when one travels at a higher velocity time slows down |
Well actually, time only slows down from the point of view of the person, not everywhere, just to kinda clarify. Part of relativity and such. |
Ehm, time does not slow down from anyones point of view. It's only if you compare "time" between the stationary and the high velocity guys you know that something is happening.
For both guys point of view one second will still be precisely one second.
Just wanted to clarify |
Relatively time would do slow down if you move at incredibly high speeds, at light speed this slow down would be not just noticeable but dramatic, altough not enough to make the time flow in the opposite direction. We may need a higher speed than light speed and well an old wise man called Einstein said that anything can be faster than light speed, let's hope he was wrong.
And well traveling to future is a different thing it may be easier but what could you find in future?again relatively you could find anything, everything or something. Time may flow in different manners so you may end traveling to a future where absolutely nothing exists or just end traveling to different futures.
Last edited by aneotoena on Tue Sep 26, 2006 5:03 am; edited 1 time in total | aneotoena wrote: |
Relatively time would do slow down if you move at incredibly high speeds, at light speed this slow down would be not just noticeable but dramatic, altough not enough to make the time flow in the opposite direction. We may need a higher speed than high speed and well an old wise man called Einstein said that anything can be faster than light speed, let's hope he was wrong.
|
At light speed the relative time would be stationary...
Einstein actually said (paraphrase) nothing with +ve mass can reach the speed of light.
Regards
Chris | Bikerman wrote: |
| aneotoena wrote: |
Relatively time would do slow down if you move at incredibly high speeds, at light speed this slow down would be not just noticeable but dramatic, altough not enough to make the time flow in the opposite direction. We may need a higher speed than light speed and well an old wise man called Einstein said that anything can be faster than light speed, let's hope he was wrong.
|
At light speed the relative time would be stationary...
Einstein actually said (paraphrase) nothing with +ve mass can reach the speed of light.
Regards
Chris |
You are completely right it would need and incredible amount of energy, and also we have to remember that at light speed you would become 2D, relatively, of course. So time travel at incredible speeds may hurt a little XDRelativity is all within respect of one grand master speed: the speed of light - however, relativity is, simply, the relation of speeds between any two or more moving objects. The reason for the mention of the speed of light is due to a man who you know as Albert Einstein, and his postulate - one of two - of relativity which states:
The speed of light is a constant within any inertial (ie non-accelerating) frame of reference.
It means that anyone can reference the speed of light and find it of a certain constant value - if you aren't accelerating that is.
It sort of means that you can accelerate yourself, or a remote probe, to the brink of the speed of light and still measure light at it's value for when you were stationary.
That's what people get into a hoohaa about.
The revelation is that anyone can say the are the origin of time and say that anyone else is moving relative to them. For any moving frame time seems to slow, however, the observer at rest within this moving frame reckons that time is fine and usual.
It could be discussed for many hours, and if you were around I'd invite you to the pub for one.
Hope this interested, enlightened, and destroyed any confusions.
It takes an infinite amount of energy to accelerate something up to the speed of light. You have to travel at light speed to go back in time.
Traveling forward in time is possible, but probably not how you think of it. The faster you travel, the 'slower' time occurs for you compared to the rest of the world. In your frame though, time ticks away at regular speed, so 1 second for you might be 1 minute for the rest of the world depending on how fast you're going. It's just basic "special relativity". Einstein came up with it in 1908.
| rjaduthie wrote: |
It could be discussed for many hours, and if you were around I'd invite you to the pub for one.
|
Mine's a pint of bitter please :-)
I had a crack at explaining this a while ago with a bit of success. I even knocked up a quick paper on it showing how you can derive the timedilation formula from simple pythagoras as follows:
http://camres.frih.net/resources/timedilation/timedilation.htm
The problem a lot of people have, I find, is an unwillingness to accept that time is not a constant relative to observers but constant to all observers regardless of relative motion. This is, of course, counter intuitive and requires you to 'let go' and follow it through.
Many people are unwilling or unable to take that step. They will inevitably respond to that paper by saying - the clock changes but it's an effect. The person is unaffected. At that point I normally find it impossible to get them beyond that point :-(
Regards
ChrisTime travel is a difficult topic because so many of the terms are not defined before beginning the discussion...
What is time?
I would conjecture that we consider an elemental definition of time: time is a passage of events.
That is, every orientation of particles in the Universe at any ONE instant is an event and the alteration of this orientation creates a second event. Inherent in this is the concept that particles have the property of existing relative to one another. Therefore, acknowledging that an event has ocurred in and of itself creates a new event.
If time is defined along those lines, it is impossible to go "back" in time because time travel itself involves a single event or a series of events, therefore ADVANCING the time continuum.
While a particular "event" can be recreated, it is not a regression in time, just a rather peculiar progression in time.
The trick comes when you reflect on human interaction with the Universe. At that point quantum theory and relativity become important arbitors of our understanding and *may* permit the illusions of things like time travel.[/i]
time travel in the physical realm is not possible, at least not yet.
time travel tho is essentially possible. there is a thing we as humans can do and this is something that can totally be induced by ones will under the right circumstances. we as humans can do what is called Lucid Dreaming. this is where we enter and REM sleep but our conscience does not follow suit. we are typically awake while dreaming, and we can control what happens in our dreams, specifically you can control what your actions are, but no one else's.
at first you might be asking yourself, how is this time travel? well simple, remember how i said it can be induced. before you go to bed at night remember a specific event, and while you are remembering that event think to yourself that you are not asleep. once you do finally fall asleep you will be in a dream state but able to control yourself. test it out go pick something up or talk to someone. the initial shock of realizing that you can do these things may wake you up and you will have to start over again. this takes time and practice but eventually you can have a lot of fun with it. quite honestly it can have some really good side effects, but that varies from each individual.
| benjmd wrote: |
Time travel is a difficult topic because so many of the terms are not defined before beginning the discussion...
What is time?
I would conjecture that we consider an elemental definition of time: time is a passage of events.
That is, every orientation of particles in the Universe at any ONE instant is an event and the alteration of this orientation creates a second event. Inherent in this is the concept that particles have the property of existing relative to one another. Therefore, acknowledging that an event has ocurred in and of itself creates a new event. |
OK. These particles existing relative to each other, considered in totality constitute a series of cause-event relationships which define the direction of time flow.
As we know, however, the relative motion and acceleration/gravity of individual particles mean that these events are non simultaneous for the different frames of reference. So there is no agreement on anything other than direction. Rate is entirely relative. Now, considering particle A is a photon and particle B is me, at time t=0 The photon has just left my torch. At time t=1 (my sub time) then 1 second elemental time has passed, but the photon has experienced no 'time' since it is travelling at velocity c. So no event defines the passage of time from within the photon's Frame of reference. Nor will it ever do so since at t=z although I have experienced z seconds of linear cause-event happenings, the photon has still 'experienced' no time flow....So time is advancing for me but not the photon since, in this model, the photon will never experience time. From the photons frame of reference it is emitted and absorbed in t=0 which means that relative to my Frame it travels an infinite distance in 0 time. Thinking about this...the photon (if it did have a point of view) would 'see' the universe be born, age and die in an instant approx t=0. (I'm trying to run Lorentz transformation with v=c but, of course, you can't do it and you get gibberish). Thinking this through a bit more (what an interesting excercise you have prompted here!!) one can, I think, say that the photon exists in only spatial dimensions and not in a temporal dimension at all.
I'm going to go and scribble some terms and see if I can work out if this is right or not...seems right from the Lorentz....
So how does this fit the general model...it seems problematic since it effetivewly means that particles pop in and out of the time stream as they decay or interact and produce photons....
Regards
Chris
PS-that's the hardest my brain has worked today :-))I think the only feasible way to travel through time is to pilot a craft faster than the speed of light.
I do not beleive time travel is ever possible due to the fact that you would need enough energy to propel you and everything on you and your vessel faster than the speed of light, because the light barrier defines time.
Now, this ammount of energy required would have to be increased as the vessel was accelerated because as its speed increases so does its mass, thus the need for more energy comes into play.
Now, suppose you're traveling NEAR the speed of light. Because your mass has increased so much, you will now need an infintismal amount of energy to get that last burst to reach light-speed.
After all that, imagine how much mass all that energy-containing-fuel would have, and the fact that the fuel must be with you while your traveling.
Bummer, huh?
| circuits wrote: |
I think the only feasible way to travel through time is to pilot a craft faster than the speed of light.
I do not beleive time travel is ever possible due to the fact that you would need enough energy to propel you and everything on you and your vessel faster than the speed of light, because the light barrier defines time.
|
I agree that faster than light is not feasible, certainly. Time dilation, however, happens at fractions of that. It happens, at a very small level, all the time. It becomes noticable at around 300,000 m/s and gets bigger a you go faster. Now that is pretty quick, I grant, around a million kph, but it is not unimaginable...(the shuttle is about 40,000kph for comparison). At that speed the TD factor is about 0.999999 or around 1 in 10,000, so you would be slightly slower relative to a stationaty frame (Earth) by about a second every 2.8 hours, or a day every 28 yrs.
Regards
ChrisWhat is time? Is time travel possible? For centuries, these questions have intrigued mystics, philosophers, and scientists. Much of ancient Greek philosophy was concerned with understanding the concept of eternity, and the subject of time is central to all the world's religions and cultures. Can the flow of time be stopped? Certainly some mystics thought so. Angelus Silesius, a sixth-century philosopher and poet, thought the flow of time could be suspended by mental powers:
Time is of your own making;
its clock ticks in your head.
The moment you stop thought
time too stops dead.
The line between science and mysticism sometimes grows thin. Today physicists would agree that time is one of the strangest properties of our universe. In fact, there is a story circulating among scientists of an immigrant to America who has lost his watch. He walks up to a man on a New York street and asks, "Please, Sir, what is time?" The scientist replies, "I'm sorry, you'll have to ask a philosopher. I'm just a physicist."
Most cultures have a grammar with past and future tenses, and also demarcations like seconds and minutes, and yesterday and tomorrow. Yet we cannot say exactly what time is. Although the study of time became scientific during the time of Galileo and Newton, a comprehensive explanation was given only in this century by Einstein, who declared, in effect, time is simply what a clock reads. The clock can be the rotation of a planet, sand falling in an hourglass, a heartbeat, or vibrations of a cesium atom. A typical grandfather clock follows the simple Newtonian law that states that the velocity of a body not subject to external forces remains constant. This means that clock hands travel equal distances in equal times. While this kind of clock is useful for everyday life, modern science finds that time can be warped in various ways, like clay in the hands of a cosmic sculptor.
I read this reasoning somewhere : the best proof we have that time travel is NOT possible is that noone from the distant future has ever visited us and announced that say, three millinnia from now, humans would have discovered time travel... not only can't we not travel back in time, the human race will never learn in the future either!
| Quote: |
| I read this reasoning somewhere : the best proof we have that time travel is NOT possible is that noone from the distant future has ever visited us and announced that say, three millinnia from now, humans would have discovered time travel... not only can't we not travel back in time, the human race will never learn in the future either! |
Nonsense!
While I do believe that time travel is highly unlikely, the fact that no one has returned from the future with bells and trumpets to announce the fact that they have come back is hardly proof of its imposibility.
If you were to go back in time to, say, the days of the Roman Empire, would you fling your arms wide and announce yourself as a traveler from the future? And if you did, would you be believed? Or would you be dismissed as a nut case and trampled by the nearest centurion as entertainment?[veryuneducatedanswer] anybody heard of the grandfather paradox if so than would this loop in time destroy the space time continum pysics most likly would not allow this loop to happen so idon't think its possible [/veryuneducatedanswer]
If we believe, see well I said IF!, what to travel in the time is possible, certainly the travelers would have rules, and great technology not to be discovered. Such as it happens nowadays when doctors and ciêntistas study the human beings, do not place them in risk in no way.
| Cassiowt wrote: |
| If we believe, see well I said IF!, what to travel in the time is possible, certainly the travelers would have rules, and great technology not to be discovered. Such as it happens nowadays when doctors and ciêntistas study the human beings, do not place them in risk in no way. |
Hard to see how that could be avoided. Even being present will alter some elements of the timestream. Something like weather, for example, can be extremely sensitive to the starting conditions. You may have heard a phrase like 'the flap of a butterfly wing in China can change the weather in France'. Whether this is literally true or not I don't know but the point is that the tinniest change in conditions will bring about a huge difference in the result.
When systems behave like this they are said to be Chaotic - this means that the output cannot be predicted no matter how accurately you measure the starting conditions. Climate goes back and forth between stable and chaotic states and when it is in a chaotic state the forecaster will not be able to give a long range forecast with any degree of accuracy at all.
Chaos is closely related to the sexy computer images that most of you will know - Fractals (short for Fractional Dimensions - Fractal images are not 2-D or 3-D, they have values like 2.8-D or 2.1-D).
For interest here is the first fractal I ever encountered - at Polytechnic nearly 20 years ago. My maths lecturer could see I was bored and set me what I thought was a trivial problem. He asked me to code the following problem for a computer (Apple II Europlus at the time) and see what happened when I ran it.
The problem was as follows:
1) Draw a triangle of any size and shape
2) Plot a random point near the triangle (inside or outside).
3) Repeat
........4) Select one of the vertices (corners) at random
........5) Move halfway from current point to the chosen vertex
........6) Plot a point
7) Forever
What do you think the output was ? A completely filled triangle ?
I was gobsmacked when I bashed in the code (assembly language) and ran the program. It produces a fractal called Sierpinski's Triangle - a winderful self-repeating image that goes on into infinity.
Here is a link to a page I've done which does this procedure using active-x code in windows. It is much fater and higher resolution than my old program on the Apple.
http://camres.frih.net/resources/math/sierpinski.html
Enjoy
Regards
Chris
Last edited by Bikerman on Tue Oct 31, 2006 12:20 am; edited 1 time in total | Jinx wrote: |
| Basically, I tend to agree with the theory of muliple realities. |
The theory of multiple realities may be true in a different form. (Disregarding my last post in this topic)
You see, a Time Traveller could end up in a perpendicular universe that is the same, as it is zigzaging through ours. There may be several perpendicular universes, depending on how the Time Traveller changes it them
If the Time Traveller changes a perpendicular universe, one of the zags is not where it's meant to be, that means it is slightly different, so there's your multiple reality.
This on my opinion may or may not be true.Yes I do.. but its much like a science fiction and fantasy. I do believe in a sense it has been seen some theoretical backgrounds.. yes only theoretical.
But practically? - i dont think so. Its much of a fantasy and less a reality.
I dont think, we can see it in our lives... too much complication.
But the talks and discussions are very interesting however. The dimensions thing, 4 th dimension - as they say. Yes we can talk on it.
But as far as believing is concerned, i say yes.
| dwcnps wrote: |
| Jinx wrote: | | Basically, I tend to agree with the theory of muliple realities. |
The theory of multiple realities may be true in a different form. (Disregarding my last post in this topic)
You see, a Time Traveller could end up in a perpendicular universe that is the same, as it is zigzaging through ours. There may be several perpendicular universes, depending on how the Time Traveller changes it them
If the Time Traveller changes a perpendicular universe, one of the zags is not where it's meant to be, that means it is slightly different, so there's your multiple reality.
This on my opinion may or may not be true. |
I like this explanation. I think this is the better way to see things in an alternative way.Let's put it this way...
I'll believe it when I see it, and I'll be wrapped if and when I do it. | songsalways wrote: |
| dwcnps wrote: | | Jinx wrote: | | Basically, I tend to agree with the theory of muliple realities. |
The theory of multiple realities may be true in a different form. (Disregarding my last post in this topic)
You see, a Time Traveller could end up in a perpendicular universe that is the same, as it is zigzaging through ours. There may be several perpendicular universes, depending on how the Time Traveller changes it them
If the Time Traveller changes a perpendicular universe, one of the zags is not where it's meant to be, that means it is slightly different, so there's your multiple reality.
This on my opinion may or may not be true. |
I like this explanation. I think this is the better way to see things in an alternative way. |
Thanks .I personally think someone will be able to travel through time, the only thing is were not there yet. And like most stories we hear time travel might actually be dangerous because life as his can be change so easily, I just hope nobody screws anything up.
I believe that time travel is possible since no one has ever proven Einstein's theories wrong, but what is said in the first post about deja vu and dreams can simply be explained with basic psychology.
It's hard to say because if there is time travel, all theese UFO sighting could actually be humans from the future observing the past.
We're all travelling. Backward in time - no, anything that changed the course of events following would inevitably change your action to travel backwards. Forwards - you are right now.
no one knows... but from what I learnt in physics studies on university you might be able to travel forward in space, simply(yeah, right) by going with a speed close to the light. (since time is a relative thing)
It is impossible to move forward or backward in time. I base this statement on our current scientific experience and understanding.
Lets get this straight, to travel backwards in time you would need to make everything (that's everything; every individual string in every single electron in every single atom etc) move backwards or jump to a specific point before. There is simply no way which would enable us to do this. You need to literally change the whole universe and that cannot be done as you would need to bring about an infinate amount of change. Remember that infinity is not a number.
To travel forward in time you would need to move things forward in motion. This would involve speeding up physics and the reactions which occur to decide where things go. Again to the whole universe.
But there's a big flaw in both of these ideas. Even if you could do them, time would still be moving forwards. It's just that (for travelling back in time) motion would be occurring in a mirror image format; repeating what it had already done in reverse. And going forwards in time, well, you would just be making things speed up while they were moving forwards in time, still at the same rate. Even if you managed to take an atom and develop a machine that worked out the pattern of the electrons moving around its nucleus and then moved an electron forward to where it would be in 10 seconds then time would still be moving forwards.
Oh, and remember that if you are travelling faster than light then you will still be moving forwards in time. It's just that you will be seeing light in such a way that things appear to be moving backwards.
EDIT: I would also like to add that I think that: Time is Motion Measured.
I also am willing to change my views, if you can sway me. Well, if you watched the movie Deja Vu...
Probably it is possible, but we don't know how yet. I mean, take a look at 200 earlier, could anyone believe that we could build planes? That we could go to the moon. That we are chatting over internet, mobile phones, etc...Things that seemed impossible have been made real...it will take time, but who knows, some day it will be possible...I will not be surprised if men can in a certain point of time. However, at this point it sounds really ridiculous and i cannot figure out in any way it will be possible. But as of most things, it is a big leap now, but when advancing the tecnology, at some point the leap will be smaller an eventually they will figure out how. You did not see a mobile phone before the fixed one.
I think it's all about your definition of time travel..
If we use the time dilation principle e.g:
http://www.pbs.org/wgbh/nova/einstein/hotsciencetwin/
Then it would look to others that we have travelled in time. I myself dont think timetraveling back in time is posible, but traveling forwards in time might be posible if you have a certain view of time.
Becouse if you freeze one man down, closing his thoughts and so on, for like a year, and place another man at the same room.
If you then wake up the man who was frozen down a year later, he would feel like only some seconds have passed, but the other man, would have felt a whole year.
This is a simple form of timetraveling, and if it was posible to freeze all changes within the body, and there was no higher conciens/soul still there counting seconds. then the outcome of your travel would be the same as any other means of traveling foreward in time, so if you can use the speed of light to move yourself a year foreward in time, without anything changing in your body, the outcome will still be the same.
So why waste energy on wormholes/black holes and so on, to get the same effect that freezing down the body would do.
You might say that the chanses of something happening to your frozen self makes it more dangerous and so on, but imagine that you will suddenly pop-up in some location 10 years from now, you wont know whats there, so it is just as dangerous.
Sorry if this makes no sense to you people It's very simple to do the math for time dilation. It dates back long before Einstein to Galileo....
Here's my summary of it ...anyone with basic algebra who knows Pythagoras theorem can follow it.
http://camres.frih.net/resources/GeneralPhysics/timedilation/timedilation.htm
Regards
Chris Technically, it is, if you could make a rocket fast enough to go faster then the speed of light.
Absolutely not. Time travel is the silliest crap I've ever heard LOL
| EekMan wrote: |
| Absolutely not. Time travel is the silliest crap I've ever heard LOL |
Would you care to support that claim with some evidence ?
ChrisWe can travel through the time by Astral Projection (OOBE).
We can study Astral Projection in OOBE Course from Master.
Thanks.
| heridlia wrote: |
We can travel through the time by Astral Projection (OOBE).
We can study Astral Projection in OOBE Course from Master.
Thanks. |
Astral projection is, for those who don't know, what you do when you have an out of body experience (OBE, I'm not sure what the extra "O" stands for in the 'OOBE' heridlia uses).
Some people claim to have travelled 'in spirit' out of their bodies; they say they can float around freely and see their own bodies as though they were someone else.
Astral projection is best accomplished when you are in the state just between being awake and being asleep and there are a number of methods to do so; see this page for example.
Obviously astral projection is debatable and controversial but not necessarily impossible; I have personally tried to astral project but got nowhere, I remain highly sceptic but I'm interested in what others have to say. Furthermore, I've never heard about time travel being possible through astral projection.nice topic started here..
i think its logically possible as we all are travelling along the time ..
we can reverse our activities as we know what we did in the past..
but any way time wil not be reversed and is unilaterally directed.
i dont think time tralvel is possible..
Had it been posible we this world would not come to existance.
There will be no word in the dictionary as suspence.
Just imagine:::
Which team would like to paly a gam knowing it would lose or win.
WHo would like to live knowing the date of his death...
There are many other silly question to ask but they dont seem silly...
Just need to think about it deeply.
| ccer wrote: |
Which team would like to paly a gam knowing it would lose or win.
WHo would like to live knowing the date of his death... |
Just because it wouldn't be 'nice' to know what's going to travel to or find out what is going to happen in the future doesn't mean it's not possible. Indeed, travelling forwards in time may be possible and we may indeed discover how to achieve this in the future, although it may generate many problems such as you suggest.
You have also, it appears, forgotten the possibility of travelling back in time. This would not create any of the problems you suggest, quite the opposite in fact. People would never be able to commit a crime without someone being able to go back and see what they did, we would be able to know how we [humans] really got here, did we Evolve or did something create us? Being able to travel back in time would be an amazing asset to the human race, although you must understand its usefulness to us doesn't determine how likely it is to be a real possibility.
