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whats your view on time travel?
Posted by JamesV • 1/07/08 • Subscribe to this Discussion [RSS] • Report This Topic
Topics: time, travel
is it possible to make a loophole into the past t make the future a better place or is it just a theory that will never occur.
User Comments
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I left a reply in the year 2025! Great Scott!! -
just a theory..I think -
When Dr. Who pops by, I'll ask him.
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Doctor Who aside (lol), it really looks like time travel is a practical impossibility.
Well, not quite. Theoretically, if you got a large enough, dense enough object spinning at just the right speed, you could do a sling shot maneuver around it and come out at some point before when you started but after the object was created. As I recall, though, it'd be a one way trip.
Not something someone would volunteer to test, I'm guessing.-
Too much Star Trek, brigid. It's not quite that simple.
Time travel is possible, but only into the future. The last experiment to show time relativity (I forget which manned misson it was) used two atomic clocks, and sure enough, the one on the capsule came back slower. A hair's breath slower, but slower.
So, if we could get a ship up near the speed of light, we could send a man into the future - our future. For the astronaut, the Earth would age faster than he does. For us ... we'd just have to wait a few thousand years for his return. -
That's not actually time travel as the person or object involved would be in measurable existence during the intervening moments. That's actually an exercise in relativity, as time would appear slower of faster depending on the distance and speed of the observer.
And the theory I presented had nothing to do with Star Trek. It actually came from a book my Dad has on theoretical physics. Granted, it's an old book, but I thought the idea pertinent to this discussion.
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I once saw a documentary where they said if a person is thrown from a object moving with the velocity of light..thrown between two electrmagnetic plates,there is a possibility that he will be in a different than than he was..
but designing something which moves with velocity of light..is it possible..-
No. The amount of energy needed would be astronomical, even for just an astronaut with no ship at all.
This is where wormhole theory comes in, "folding" space to get to distant points in the 3rd, 4th or other dimensions. "Warp drive" in Star Trek speak.
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star treak is at the realms of impossible
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star treak is at the realms of impossible
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i subscribe to the dragon ball Z idea of time travel
i will now explain thusly,
you can go back a change a past, but not you past
i.e. when u travel back in time you also travel to a parallel dimension -
Time travel will never occur, it's not possible.
Time is a simple concept:
To move forward in time you just need wait.
It is impossible to go back in time because those events have already happened.-
Actually, time does not flow by us. We move through time.
You remember Flatlanders, perhaps? The example of two dimensional people who are shown a 3-dimensional ball. To them, it starts as a point, widens to a circle, and collapses to a point again.
Watching someone grow older is the same. They move through the 4th dimension - duration - but we only see them moment by moment because we are 3 dimensional beings.
Time travel has already been proven via the atomic clock experiment conducted by NASA (in the 1970s? I haven't had a chance to look it up yet). It is not impossible, just uni-directional and highly impractical.
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Lets call Doc Brown and get us a Delorean and a Flux Capacitor! -
1.21 gigawatts! 1.21 gigawatts!
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LOL!
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It's not over 'til the fat lady sings...
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apparently there's a scientist who is working on a machine to do just that, to an extent, & he's being taken seriously in the scietific community according to the discovery channel video mentioned below
also in the video its mentioned that some astronauts have already travelled forwards in time, albeit by just a fraction of a second - who knows what'll happen as technology advances
video.google.com/videoplay?docid=8242243689164201392
(takes a while to get going but has some good bits)-
I'm at work and have no sound on my comp, so I'll check it out tonite. But yes, that would be the manned space flight I mentioned earlier - would someone be so kind as to take a look and post back what mission that was?
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Forward time traveling is relatively simple. It can be achieved by accelerating to extremely high speed or by getting close to an extremely big mass. As predicted by Einstein’s theory of relativity - time is subjective. For example, you can go on a one minute high speed trip only to return to Earth to discover you have just missed a whole decade back at home. A real-life example is the cosmonaut Sergei Avdeyev that spent a total of 748 days on the Russian space station Mir and missed a whole 0.02 seconds on Earth.
Although that DeLorean looked really cool on Marty McFly, backward time traveling may be theoretically or practically impossible. Some claim it can be done using wormholes, black holes or other abnormalities of spacetime, while others claim it exists only in science fiction.
If backward time traveling is possible, where are all the tourists from the future? Even if it will be illegal in the future to go back to the past, I’m sure some would break the law eventually.
Possible explanations are:
1. Backward time travel is not possible.
2. It’s theoretically possible but practically impossible.
3. It can be done, but we will destroy ourselves before achieving this.
4. It will be done in the future, but time machines allow you only to go back as far as the time the machine was created. -
Hello Uri! It seems everything was set in motion so we can't do certain things. This is one way I tried proving to people that someone designed the universe when I use to talk about this online in the 90s.
The fact that we are stopped from doing just anything we want. Like we can't destory the earth with a bomb. The sun just never dies out on us. The fact that a black hole just does not destory us.
Everything seems like it was set so that it all stays in place and we can't do certain things. Some will say it is just luck that it worked out this way. I always say someone made it that way. If we can go back in time it would change everything. People would use it for evil purposes also. God won't allow that.-
We CAN destroy the Earth with a bomb. Make no mistake.
The sun doesn't die out on us because it still has lots of hydrogen left.
A black hole hasn't eaten us because one hasn't happened by.
Everything seems set to stay in place? We have been on this planet for the equivilent of an eye's blink when compared to the grand time line of the cosmos' existance. Don't be quite so quick (5 million years) to make an assertion on the static state of the universe.
As for time travel, well, do you recall the old expression, "If God meant for man to fly, he'd have given us wings"? People really said that. I think it sums things up nicely. -
ghostytwofish,
Well said, you saved me a comment
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ghosty again you talking from someone else references how do you know yur right
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How do you know I'm not? I have numerous scientific sources (most from high school for this example, so I'll not insult your intelligence by citing any of them) that we have nuclear weapons, and the sun burns hydrogen, and what the odds of a black hole happening by are.
For someone who supposedly goes to Oxford, you seem to be out of touch on some pretty run-of-the-mill information.
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time travel cna be succeeded however severe consequences would occur to the present time so we make it impossible
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Why???
A famous problem is the grandfather paradox, where a man travels back in time and kills his own grandfather before the latter met the traveler's grandmother. As a result of this act, the traveler could not have been born, so how can he later travel back in time?
Some see this paradox as a death blow to backward time travel possibility, but although definitely weird, I think the only problem here is that it’s not aligned with our intuition.
Because human logic was developed by evolutionary process in order to better hide from lions and hunt zebras more effectively, I don’t see a big problem in the fact that 21st century thought experiments regarding traveling through the forth dimension don’t appear logical to us hunter-gatherers.
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we have more than nuclear weapons because my dd uncle who was sciencist a top 1 said you be suprised on what we got was his alst words bfore he died
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antimatter?
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Just in case it's possible ... there's always ..
www.timetravelfund.com/-
Hahaha! OMG that has to be the scam of the ... well, several centuries, actually! LOL
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You never know, eh? $10 ... that's like .. 5 Tim Hortons coffees, or 2 Starbucks coffees or .... . and after 500 years could be worth $39,323,261,827.22 (That's 39 BILLION with a "B" dollars!) if they maintain a 5% rate of return.....
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Ha! That reminds me of an episode of Red Dwarf in a strange way. -
Red Dwarf fantastic or the episode of Futurama where Fry realised he had shed loads of money.
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lol
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yeah red dwarf that was legend mind
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James,
You said "we have more than nuclear weapons".
Do you mean antimatter? -
nope i dont i mean weaponary wise
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i want to go back.. see how egypt pyramid built, meet roman caesar, meet moses & go traveling around the world just to see how '7th wonders' exist. -
time travel would be soo fun. i'd love to travel back in time and see some amazing stuff, and it would be great to peek into the future too.
But the theorists say it must not be possible, otherwise we'd see lots of "time tourists" showing up in past famous historical events. People traveling from the future to the past to see events for themselves: like the crucificion of christ (if that really happened), etc.
sounds like a good reason to dismiss the theory. Of course, this is just talking about the possibility of leaping around in time and then coming back to our own time. this has nothing to do with time being relative to how fast your are traveling through space.-
Not necessarily.
Read comments above.
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My only problem with time travel is that the universe is also supposed to be rapidly expanding, so if you got into a machine or craft here where we are now, and pressed a button to whisk you 100 million years into the past, wouldn't you wind up marooned somewhere in space?
Now, if you could bend "space time" - I suppose that would be different, but then again my understanding of quantum physics is confined to that which I've perused in Discover magazine over the years.-
Good point, one would have to move spacially as well. Probably why using a "folding" method might be much better.
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ghosty, by chance have you ever read the interview with John Wheeler in Discover from around 2002 that asks "does the universe exist if we are not looking?" You strike me as the kind of guy that might like that article. The premise was essentially that if the observer can have an effect on the outcome of an experiment in quantum physics, such as changing the way light behaves, that possibly the universe was set up to be observed by a conscious mind. Very fascinating stuff. By no means a complete and coherent theory, but interesting nonetheless.
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well would anyone really try time travel because it might end up not being able to go back to the present state of time.
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It's immensely enjoyable...
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I posted this on the space.com board years ago my idea. It is not possible though probably ever.
Build a telescope big enough that can look back in time far enough to find out the past events here on Earth. Warp the telescope far enough away from Earth in space so that it views the planet as it was thousands of years ago.
You probably can't see people, but maybe land formations? Asteriod hitting Earth? Major weather storms?
That way no people would have to risk going back in time.-
good articles
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Ultimately the issue isn't time, it's the nature of the human animal. -
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I wish I could travel ahead in time and make the world a better place before it turns into a more hostile one........ -
We never saw someone from the future did we? I think that's a hint. -
It appears to be logically impossible but many stranger things have proved to be doable. -
i hope it's just a theory and never becomes possible. a loophole in time may require harnessing the powers of black holes/worm holes and even if that was possible, time travel might still be impossible. and... to take away an action in the past may completely change the state of the present and the future. good people could be eliminated, bad people could take over countries, lots of things could change. our existences could never end up happening. not to mention going back in time could cause horrible mental problems if you saw yourself or if your family saw the future you.
time travel needs to remain just a theory. -
Look at the sun: you have seen 8 seconds ago. Look at the stars: you are seeing billions of years into the past
Just capture the light that went by after reflecting on the past, channel those photons and make a display: Presto! you are peering into the past
Who knows? People from future might be watching us, spying on us..
Re-capture the weak sound waves from the era of the past. You can have audio too
Now.. where do I apply for a nobel prize?-
Light actually takes 8 minutes and about 25 seconds or so to travel from the sun to the earth. -
People from the future can't be watching us right now like you said, since photons (as any other kind of information) cannot exceed the speed of light.
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They are already talking about variable speed of light..
And.. i thot light is nothing but photon particles?
@8 mins ... ok .. i stand corrected, if that's what is correct.. but my point is made anyhow
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Believe it or not,but a housewife can have deep thoghts too.
Have you ever thought about what happens when you hold your breath? Well u turn blue. So for all you darwinians out there. I never said we don't evolve at all. Here's my point... say the earth steadily decreases in its oxygen level,and we evolve to learn how to breathe co2....well we would probably have a greenish/bluish tint....now say we humans also master how to live on other planets in the universe....well my point is maybe the "SIGHTINGS" we see now,aren't actually aliens,but the human race 2 million years from now,and we have finally manged to crack the code of time travel......kinda neat thought huh????
Disclosure: doesn't mean I don't believe in creationism/GOD-
Re: Believe it or not,but a housewife can have deep thoghts too.
Desperate housewives
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Where do I apply for nobel prize...haha
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Seriously, just think - if someone were to find a way to recapture the past right off the atmosphere wouldn't he be given one? Na, there would be a prize instituted in his name!
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Yea,4 sure... it will happen one day,if my little theory proves right. You know what I have the theory,u do the physics...we when the the prize,hahahahaha....that's my mad scientist laugh...btw
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Ya, I guess you must be right.. Alwyn Toffler was never given the prize either, was he?
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The Earth was once flat, now it is round. Cloning, stem cells, flying, the internet, goat silk
( news.bbc.co.uk/2/hi/science/nature/889951.stm ) etc etc.
There may not be a recipe for time travel right now, but I am sure some where in the future there will be one.
As far as people from the future being here now, well 2 things comes to mind.
1) They are and they keep it to them selves
2) The future isn't here yet.
We say things can't be done, and yet we keep doing them.
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