Time Travel Impossible

If time travel would at all be possible in my life time I would come back and stop me from posting this....

Edit: Point proven :)
 
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I love how humans claim this is impossible and that is impossible.

I was reading an article and nasa is a sending a probe to jupiter to figure out how the universe formed. We cannot even see majority of the universe but somehow we think one probe going to jupiter will reveal all :D.
 
Elimentals said:
I dont think you truly understand quantum maniacs or what it entails: IE a wave is a particle is a wave(Wave–particle duality) depending on you observation. It is in this state of observation where we theorize that it exist both in the future as well as the present, also can be at different places at the same time.

Then again I am sure many people will and did go nuts trying to warp their brains around the quantum world.

If you interested check out http://www.colorado.edu/philosophy/vstenger/Briefs/QuantumTimeTravel.html
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I agree that we "theorise" and i don't fault what you are saying. What i am saying is that we don't "know" this. The problem with science today is that too many take theories to be fact, just because some article says "..and scientists.."
 
killadoob said:
I love how humans claim this is impossible and that is impossible.

I was reading an article and nasa is a sending a probe to jupiter to figure out how the universe formed. We cannot even see majority of the universe but somehow we think one probe going to jupiter will reveal all :D.
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I am not sure how you come to the conclusion that that any one would think that this single mission is meant to reveal all......
 
Sigh, so many people commenting without knowing what they're talking about. It can be tricky to get your head around it, but you guys really need to read up on the Theory of Relativity. It'd answer many questions in this thread.

Anyway, cool OP. To observe a single photon is an awesome achievement. To add another piece of evidence to an already large pile in support of Relativity and C as a constant is no biggie, except that this is actual observational evidence! Very cool. Hoping for more articles with some dumbed down explanations as there are still some aspects of the experiment itself that I don't understand. Back to Google in the mean time.

[BTW the whole travelling forward in time but not backward was brought up a coupla times.
This isn't technically time-travel in the sense we see in movies etc. What you'd do is fly really fast, so time will slow down for you. So you do a loop around the (celestial) neighbourhood for, maybe a year, at let's say point something the speed of light. Time's going faster on earth, so when you get back, maybe 2 or 3 years have passed. Cool, you've gone into the future. Time travel. BUT, you can never go back. Meh. AND, you've still aged by a year. So you lose all the cool time-travel benefits we'd like to get, except for the whole seeing the future thing, which you can only really achieve if you are able to go fast enough. Otherwise you're only seeing the near future - boring.]
 
satanboy said:
I saw it in a movie last night. ;)


Anything is possible.
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The Langoliers ? - What a strange timetravel movie that was (a Stephen King),
the coolest meanest timegobbling smilies (or pacmen) you have ever seen - a classic.

I have to agree though, my attitude is also that anything is possible, it's just a matter
of troubleshooting and we know that spacetime is likely well sprinkled with all sorts of anomalies :twisted:


_________________________
Welcome to the holographic sandbox - can you find the way to the next level ?
 
but can we at least call people in the past aka crank prank timephone?
 
Well walking on the moon was impossible 100 years ago, amongst thousands of other things. But technology progressed and we did it. Relatively speaking we have already travelled back into the past, we are looking at galaxies now that are billions, millions and hundreds of thousands of years old, some of them even on the final stages of their lifecycle, so we are roughly able to view how our galaxy was formed and even how it might end. A window of time so to speak. If somebody out there was looking at our galaxy right now, we probably wouldn't even exist yet, still a great giant planet of lava.

As someone mentioned before though, opening up wormholes to other galaxies is incredibly dangerous since we cannot accurately see the future, only the past unfolding for that galaxy, we could teleport right smack bam into the middle of a supermassive black hole or giant supernova or even worse, a galaxy crawling with flying dwarves that shoot lightning bolts out of their arses!
 
Convincing yes. But Bells theorem still shows wierd things happen outside common sense...
 
zippy said:
I am not sure how you come to the conclusion that that any one would think that this single mission is meant to reveal all......
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It's not me, nasa said this mission will reveal how the universe was formed. That is my point. They talk like it will reveal everything.
 
smokey said:
Please explain to me (in laymans terms if possible) how come there's no build up of energy? If light is going in one end and coming out the other but but slowed down in the middle, then wouldn't there be a huge queue at the beginning of the thing that slows down light? I'm no physicist, but it would be an interesting thing to know.
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From the article that was linked
Working with Chien Liu, a postdoctoral fellow at Rowland, and Harvard graduate students Zachary Dutton and Cyrus Behroozi, Hau kept tweaking the atoms until they completely stopped laser light. This happens when a second laser beam directed at right angles to the cloud of atoms is cut off. When that laser is switched on again, it abruptly frees the light from the trap and it goes on its way.

Hau explains that light entering the atomic entanglement transfers its energy to the atoms. Light energy raises the atoms to higher energy levels in ways that depend on the frequency and intensity of the light. The laser illuminating the cloud at right angles to the incoming beam acts like a parking brake, stopping the beam inside the cloud when it is shut off. When it is turned on again, the brake is released, the atoms transfer their energy back to the light, and it leaves the end of the cloud at full speed and intensity.
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So the law of conservation of energy is still preserved, dont worry. :p
 
killadoob said:
It's not me, nasa said this mission will reveal how the universe was formed. That is my point. They talk like it will reveal everything.
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Closest I've come is they claim that Jupiter may help them better explain how our solar system formed. I somehow doubt that the clever folks at NASA think exploring one planet via satellite is going to unravel the mysteries of the universe. I'd wager the article in question exaggerated a bit to make it sound uber important and stuffz
 
Archer said:
Closest I've come is they claim that Jupiter may help them better explain how our solar system formed. I somehow doubt that the clever folks at NASA think exploring one planet via satellite is going to unravel the mysteries of the universe. I'd wager the article in question exaggerated a bit to make it sound uber important and stuffz
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I knew i should have bloody linked it, now i cannot find it on bbc haha but ya i think bbc did perhaps over state it because reading other stories i cannot find the same thing :D.
 
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