Time Travel. www.iflscience.com/physics/scientists-have-simulated-time-travel-photons. Scientists Have Simulated Time Travel With Photons June EU. | by Janet Fa Time Travel www iflscience com/physics/scientists-have-simulated-time-travel-photons Scientists Have Simulated With Photons June EU | by Janet Fa
Upload
Login or register

Time Travel

Scientists Have Simulated Time Travel With
Photons
June EU. | by Janet Fang
quantum particle travels ' a wormhole in time and returns he the aami in epar:: e and
time I i». -wmin
...
+395
Views: 19785 Submitted: 06/20/2014
Hide Comments
Leave a comment Refresh Comments (148)
[ 148 comments ]
> hey anon, wanna give your opinion?
asd
#42 - masterboll
-5 123456789123345869
has deleted their comment [-]
User avatar #46 to #42 - atomschlumpf
Reply +3 123456789123345869
(06/21/2014) [-]
That's just one of the theories
#45 to #42 - RipperMan
Reply +65 123456789123345869
(06/21/2014) [-]
There's no way to know anything about time travel until we do it
#52 to #45 - dragonstew
Reply +30 123456789123345869
(06/21/2014) [-]
I'm so sorry... I couldn't resist... as long as you have enough rupees
#54 to #52 - popnotes
Reply +1 123456789123345869
(06/21/2014) [-]
I don't care how many reds you get, that is ******* clever.
I don't care how many reds you get, that is ******* clever.
#96 to #52 - ffinfinity
Reply 0 123456789123345869
(06/21/2014) [-]
i wish i got the reference, is this a zelda thing?
#112 to #96 - anon id: 10e06558
Reply 0 123456789123345869
(06/21/2014) [-]
#1 - confusedasian
Reply +40 123456789123345869
(06/20/2014) [-]
I'm actually really against time traveling. Butterfly Effect and A Sound of Thunder.
I'm actually really against time traveling. Butterfly Effect and A Sound of Thunder.
User avatar #2 to #1 - presidentmoose [OP]
Reply 0 123456789123345869
(06/20/2014) [-]
Quote an Ashton Kutcher movie and a Sci-Fi original.... yeahh you have the basic knowledge to judge something.
User avatar #9 to #2 - confusedasian
Reply 0 123456789123345869
(06/20/2014) [-]
I didn't quote anything, nor did I say I have a basic knowledge of it. I'm just saying that I watched those movies and they seem scary possibilities.

User avatar #12 to #9 - presidentmoose [OP]
Reply 0 123456789123345869
(06/20/2014) [-]
Never let a fictitious tail dictate your opinions, my friend. That's one of the worst problems going on with mankind right now.
#31 to #12 - anon id: e5220d30
Reply 0 123456789123345869
(06/21/2014) [-]
lol

No. It's not.
#62 to #31 - racistname
Reply 0 123456789123345869
(06/21/2014) [-]
**racistname rolled image**
yes it is... fictitious tails are always a danger to humanity.
User avatar #6 to #1 - sewallman
Reply 0 123456789123345869
(06/20/2014) [-]
There is no such thing about the butterfly effect. Everything that could have happened has already never happened. If someone actually does go back into time, you'd return to the same reality in the present than when you left. If you where to span other dimensions (according to the multiverse theory) you would likely find dimensions that you had never chosen to go back into time in.

I could draw you a picture if you wish.
#132 to #6 - blancka
Reply 0 123456789123345869
(06/21/2014) [-]
There is such thing as the butterfly effect. As in the actual butterfly effect, not the ****** movie version you're thinking of.
User avatar #11 to #6 - confusedasian
Reply 0 123456789123345869
(06/20/2014) [-]
Please do. At least you're not a sarcastic and an ass. Those movies had some scary outcome so that'd be cool if you can disprove it.
#24 to #11 - sewallman
Reply 0 123456789123345869
(06/20/2014) [-]
sorry for **** quality, but you should understand the just of this post. You cannot change the past, you can only change the future by using actions in the present. I'm unsure of the scientific terms right now, but it's certain that science proves that time travel is a possibility, and the effects of going back in time are not too terrible.

There is a tiny chance that I may be incorrect, but you wouldn't even notice the change in the time space continuum. You may never have existed if such things took place.
User avatar #28 to #24 - confusedasian
Reply 0 123456789123345869
(06/21/2014) [-]
If you change past, present stays same, but future change?

What if I go eat a lot, then I go poop a lot. I go back in time and stop myself eating a lot, then I go to the present where I am pooping. Wouldn't that change the present? Because I told myself not to eat a lot so no food means no poop. Wouldn't that happen?

I use this example because I'm about to eat spaghetti and I feel my stomach ready to erupt.
User avatar #139 to #28 - Sewallman
Reply 0 123456789123345869
(09/11/2015) [-]
You would have absolutely no need to time travel then.

Eat>
poop>
oh no time travel>
Never eat>
Never poop>
Never time travel>
User avatar #140 to #139 - confusedasian
Reply 0 123456789123345869
(09/11/2015) [-]
Why did you come back to respond to this comment?
User avatar #141 to #140 - Sewallman
Reply 0 123456789123345869
(09/11/2015) [-]
To prove a time traveling point.
User avatar #142 to #141 - confusedasian
Reply 0 123456789123345869
(09/11/2015) [-]
Your point is lost on a dumbass like me.
User avatar #27 to #24 - sewallman
Reply 0 123456789123345869
(06/21/2014) [-]
wait.. the end says the past changes. I'm sorry. That is incorrect. The future changes, but yeahh.
#29 to #1 - kulamia
Reply 0 123456789123345869
(06/21/2014) [-]
I always see time travel this way: If time travel would ever happen, then anything they would do would have happened already(or the future would change when they changed it). Therefore anything that would happen, is set to happen. The idea that the story from TSoT could happen is laughable to me. The changes that occured to elect the new fuhrer-type ****** would have existed all along. Therefore the idea that the hunters would experience the changes doesn't make sense.
User avatar #43 to #1 - danster
Reply 0 123456789123345869
(06/21/2014) [-]
I think you mean soundofwinter.
User avatar #48 to #1 - payseht
Reply 0 123456789123345869
(06/21/2014) [-]
well, they're both fiction. We don't really know what would happen since nobody has done it... as far as we know...
If you like time travel movies and have a lot of free time to go through forums to understand what the **** you just watched, I highly recommend "Primer".
User avatar #50 to #1 - gemleonn
Reply 0 123456789123345869
(06/21/2014) [-]
Basically it's just doing it before we can see it. Anything faster than the speed of light is considered time travel, since we can't see or hear it while it happens. I'm 100% sure we'll never be able to go back in time, but we may be able to go several minutes into the future
#51 to #1 - anon id: da19ab58
Reply 0 123456789123345869
(06/21/2014) [-]
well when you think about it, everything that people time travelled back to change is the way things are now, so nothing would be different
User avatar #80 to #51 - tonkkax
Reply 0 123456789123345869
(06/21/2014) [-]
Yeah i'd rather if people would stop ******* with the middle east and remove muslim extremists from there.
User avatar #107 to #1 - wliia
Reply +1 123456789123345869
(06/21/2014) [-]
Never understood worrying about the butterfly effect. That's always going to be a possibility no matter what.

Do you ever go driving, and think "Holy **** maybe if I take a different turn a convoluted series of events will bring about a totally undesirable future!"

Probably not. Just as likely right now as it would be if you were time traveling.
User avatar #3 to #1 - presidentmoose [OP]
Reply +3 123456789123345869
(06/20/2014) [-]
If you look though, the photon is returning to it's original starting point, not going back further. All it's doing is looping through the same course the can only be measured in Plank Time.

<school
#73 - albertjester
Reply +9 123456789123345869
(06/21/2014) [-]
if time travel existed, we'd know about it surely, cause there'd be a bunch of quantum tourist ***** going about being all "woooooooow! big ben was so amazing before it was destroyed in the great fish n chips uprising of 2419"
#77 to #73 - pjers
Reply 0 123456789123345869
(06/21/2014) [-]
actually all the calculations we have on time travel share one limit; you can't go back to before the time machine was built.
User avatar #83 to #77 - Silver Quantum
Reply 0 123456789123345869
(06/21/2014) [-]
not that we have that much practical knowledge about time travel
#87 to #83 - pjers
Reply 0 123456789123345869
(06/21/2014) [-]
well it's a big ball of wibbly-wobbly, timey, whymey, stuff.
User avatar #78 to #73 - phawsy
Reply 0 123456789123345869
(06/21/2014) [-]
because if a person goes back in time and reveals something stuff would be done to make sure that doesnt happen, if so the person who went back in time wouldnt need to go back, therefore they wouldnt go back and be all "wow" and then no one would know what would happen to nothing would change
User avatar #93 to #73 - icefried
Reply 0 123456789123345869
(06/21/2014) [-]
Divergent timelines
User avatar #111 to #93 - albertjester
Reply 0 123456789123345869
(06/21/2014) [-]
ah yes, the trousers of time.
#4 - presidentmoose [OP]
-7 123456789123345869
Comment deleted by presidentmoose [-]
User avatar #8 to #4 - sewallman
Reply 0 123456789123345869
(06/20/2014) [-]
I meant to thumb this, because of science. I was writing a reply to mr. butterfly effect guy over there.
#32 to #4 - anon id: fb175e58
Reply 0 123456789123345869
(06/21/2014) [-]
This isn't amazingjunk.
User avatar #5 to #4 - largilloquent
Reply +9 123456789123345869
(06/20/2014) [-]
no need to suck your own dick
#7 to #5 - presidentmoose [OP]
-4 123456789123345869
Comment deleted by presidentmoose [-]
User avatar #10 to #7 - largilloquent
Reply +2 123456789123345869
(06/20/2014) [-]
im not making fun, im just saying no need to comment on your own post telling people to thumb
#13 to #10 - presidentmoose [OP]
-4 123456789123345869
Comment deleted by presidentmoose [-]
User avatar #14 to #13 - largilloquent
Reply +1 123456789123345869
(06/20/2014) [-]
so? that means nothing to a peon like me, or you. or any of fj. interesting though it may be
#15 to #14 - presidentmoose [OP]
-5 123456789123345869
Comment deleted by presidentmoose [-]
User avatar #16 to #15 - largilloquent
Reply +1 123456789123345869
(06/20/2014) [-]
pics or it didnt happen. and if your legit, then it doesnt matter to 99% of fj
#17 to #16 - presidentmoose [OP]
-4 123456789123345869
Comment deleted by presidentmoose [-]
User avatar #18 to #17 - largilloquent
Reply +1 123456789123345869
(06/20/2014) [-]
some form of proof that your not a lying ****, aboot your life goals
#19 to #18 - presidentmoose [OP]
-3 123456789123345869
Comment deleted by presidentmoose [-]
User avatar #20 to #19 - largilloquent
Reply +2 123456789123345869
(06/20/2014) [-]
going for your masters means you have no other certificates of graduation?
#23 to #20 - presidentmoose [OP]
-3 123456789123345869
Comment deleted by presidentmoose [-]
User avatar #25 to #23 - largilloquent
Reply +2 123456789123345869
(06/20/2014) [-]
nothing pretentious aboot being proud of your accomplishments, unless you do it for people to see specifically
#26 to #25 - presidentmoose [OP]
-3 123456789123345869
Comment deleted by presidentmoose [-]
#21 to #20 - presidentmoose [OP]
-3 123456789123345869
Comment deleted by presidentmoose [-]
User avatar #68 to #21 - largilloquent
Reply +1 123456789123345869
(06/21/2014) [-]
so op, how goes your search?
#70 to #68 - presidentmoose [OP]
0 123456789123345869
Comment deleted by presidentmoose [-]
User avatar #71 to #70 - largilloquent
Reply +1 123456789123345869
(06/21/2014) [-]
if you post it, i will thumb up all your comments in this chain
#72 to #71 - presidentmoose [OP]
0 123456789123345869
Comment deleted by presidentmoose [-]
User avatar #22 to #21 - largilloquent
Reply 0 123456789123345869
(06/20/2014) [-]
indeed, thanks for your cooperation.
#33 - regmar
Reply -5 123456789123345869
(06/21/2014) [-]
Time travel will does not exist and never will, but lets say it does then heres just one example of what can go wrong.
You time travel say 1000 years into the past, theirs diseases that your body isn't used to so you'd die very quickly, you can't just whip up a vaccine.
If you go back in time then you'd be at your location in the universe, which would be in space by then.
User avatar #38 to #33 - darkgems
Reply +5 123456789123345869
(06/21/2014) [-]
actually our body contains a catalog of antibodies to ancient diseases that we would never come in contact with so we actually wouldnt become that ill
#41 to #38 - anon id: 14f369ad
Reply 0 123456789123345869
(06/21/2014) [-]
Maybe because we went back in time and bred with the ancient humans in order to give them these antibodies?
User avatar #35 - goldenfairy
Reply 0 123456789123345869
(06/21/2014) [-]
Doesn't some theory say amount of energy in the universe is constant? (including energy from E=Mc^2)
So how does it work if you send matter into the past/future?
User avatar #37 to #35 - honkan
Reply 0 123456789123345869
(06/21/2014) [-]
I have no idea, so these are just guesses.

1. The theory is wrong, or more specifically, does not apply in this situation. Like our current theories don't work in the time shortly after the big bang.

2. The amount of energy is constant, if you also consider all energy from the past and the future. Creating energy is still impossible, but you can transport it through time.
I have no idea if this makes sense. It's kinda hard to wrap my head around.
User avatar #39 to #37 - donutzrawsum
Reply 0 123456789123345869
(06/21/2014) [-]
I think I can explain. It's believed time functions linearly, as in point A to point B. However seeing that time is relative to the speed of light, if you move as fast as light time stops, if you move slower time speeds up, all being relative. That's just the setting here, time functions, the way I was told, like a big tunnel. You can see what's at the end of the tunnel, and if there's someone at the end they can see you. How you ask? Well you're always looking BACK in time irregardless of how far you are, it's however long it takes for light emitted to reach you. Now, imagine that tunnel was say 5 lightyears long. That means that if Person A and Person B were to take their positions at their positions at the exact same time, they would never be able to because it would take them 5 years to see each other. Time is relative to the field it is perceived in. Energy in the universe is constant, the universe exists as a whole in past present and future. Take something to bring to the past and you've taken that from the future and given it to the past. +1 -1, you net 0. From what I see in this case, time travel would indeed be possible, but the result would be irrelevant. Because the universe is constant, there is already a dimension in which you did go back in time to change something (provided you could) so even if you did it would only be relative to you who was witness to it and that universe would only be relative to you. As a whole however the universe you were part of has already move past that point and you ultimately can't change the outcome there. You would however take yourself out of the picture for universe one. -1. Preventing universe One from progressing. But there's also a universe in which this is expected and has already happened, +1. Ultimately you net 0.

I went off on a tangent, TL;DR: the universe interprets past, present, and future simultaneously.
User avatar #40 to #39 - donutzrawsum
Reply 0 123456789123345869
(06/21/2014) [-]
I THINK*.
#49 to #35 - anon id: 8238c492
Reply 0 123456789123345869
(06/21/2014) [-]
Didn't read what any of the replies said so I am just going to tell you my view and hope no one else covered it.


Energy is constant in a closed system. For it to be constant in our universe it would require our universe to be a closed system. For one thing, if you could travel through time it would no longer be closed. Another thing is that it is perfectly possible that our universe isn't a closed system. No evidence that it isn't a closed system, but that doesn't get rid of the possibility.
User avatar #44 to #35 - mooproxy
Reply +3 123456789123345869
(06/21/2014) [-]
I'm far from an expert on this sort of thing, but I may be able to help:
Conservation of energy is accurate, and e=mc^2 ties in when you're converting between mass and energy, but it gets a bit hazy in the quantum area, for example vacuum fluctuations - particles can appear from nowhere and exist for a time inversely proportional to their mass until they cease to exist (even then for a very, very short time), but while they're in existence, there's a very tiny bit more energy in the universe than there was before.
The concept of time travel is also a bit fuzzy on the quantum scale, as I think there's no mathematical difference between, say, an electron travelling forwards in time and an anti-electron travelling backwards in time.
Also, relativity dictates that the closer to the speed of light a particle travels, the more slowly time pass 'from its point of view' though if we extend this to photons (which of course travel at the speed of light) then presumably time doesn't happen at all 'from their point of view', so a photon that starts in a far-off galaxy and collides with earth, while it'll travel many millions of light years, it wouldn't perceive any concept of time (if it could have a point of view).
I think this article involves projecting a photon along a path through spacetime without changing its spacial location, and since mathematically there's little difference between forwards and backwards in time (and photons don't have corresponding antiparticles) they somehow managed to persuade one to go backwards in time, though remember it's a simulation and not an experiment that has actually happened yet.
Remember of course, that I'm no expert on the matter, and I could be completely wrong. Time is always very difficult to understand when people are messing with it.
User avatar #118 - psykobear
Reply +2 123456789123345869
(06/21/2014) [-]
So... they created what they think would happen.
#64 - boomerpyro
Reply +1 123456789123345869
(06/21/2014) [-]
brownie points to those who recognize this
brownie points to those who recognize this
User avatar #75 to #64 - sockbag
Reply +1 123456789123345869
(06/21/2014) [-]
"Quantum Leap"
#76 to #75 - boomerpyro
Reply +1 123456789123345869
(06/21/2014) [-]
User avatar #84 to #64 - Silver Quantum
Reply +2 123456789123345869
(06/21/2014) [-]
must be the legend of pokemon bros: a digital adventure: the book: the movie
#85 to #84 - boomerpyro
Reply 0 123456789123345869
(06/21/2014) [-]
#53 - robuntu
Reply +1 123456789123345869
(06/21/2014) [-]
If time travel were possible, wouldn't time travellers already be here?
User avatar #66 to #53 - tarekmig
Reply 0 123456789123345869
(06/21/2014) [-]
***** are you sane?
That would trigger the butterfly effect, when they will travel back to their original time everything would be ****** up.
User avatar #81 to #66 - dapape
Reply 0 123456789123345869
(06/21/2014) [-]
You cant actually change the past because anything you do in an altered timeline was already done by you.
User avatar #55 to #53 - masterenclave
Reply +2 123456789123345869
(06/21/2014) [-]
yes they are. who else do think taught us time travel
#56 to #55 - robuntu
Reply 0 123456789123345869
(06/21/2014) [-]
Then why haven't they taught us time travel?
User avatar #57 to #56 - masterenclave
Reply 0 123456789123345869
(06/21/2014) [-]
they're probably doing it slowly. like this post shows that we're developing it. it like if you give someone in the Renaissance era the schematics for an Iphone. they'd know how to make it but don't have the material or mathematics.
#59 to #57 - boothead
Reply 0 123456789123345869
(06/21/2014) [-]
I want a time traveler to come to my house, tell me how meaningless my life is going to be, so I can say ******.png and off myself before I learn for myself how pointless I really am.
User avatar #60 to #59 - masterenclave
Reply 0 123456789123345869
(06/21/2014) [-]
yeah so true
#104 - anon id: 74d27457
Reply 0 123456789123345869
(06/21/2014) [-]
Instead of being a douchebag who smokes weed and thinks science is cool, yet does nothing more to involve yourself in the science community but read a horrible interpretation of the paper in an article written by IFLS, try reading the actual paper. They don't leave anything out.
User avatar #109 to #104 - atomicman
Reply +1 123456789123345869
(06/21/2014) [-]
I agree. This article seems insanely non scientific. Also the entire picture does not make sense to me. Look at my comment #94
User avatar #120 to #109 - umaya
Reply +1 123456789123345869
(06/21/2014) [-]
about 90% of science articles are written by idiots who simplify it poorly and incorrectly or just copy half of it and leave out the explanations.
User avatar #122 to #120 - atomicman
Reply +1 123456789123345869
(06/21/2014) [-]
Agree entirely. Man I wish someone would make it more clear that most of these are ********. Alot of people are getting fooled by this.

What I'd recommend. Never trust any article unless data has been provided by a considerably good university or any other scientific institute.