[QUOTE=UncleJimmema;17192976]Time is relative to gravity as well though. I'm no theoretical scientist but I do know that when you essentially exists in the parallel between the 3rd (being our reality) and 4th (being time) dimension than something like age would not happen in a normal fashion.[/QUOTE]
Erm... no.
Age is growth and deterioration of the body. Time only affects how fast or slow it occurs. If you time travel, you will keep aging at about the same rate, only you would be jumping around different time periods.
[QUOTE=Dclone2;17192997]Erm... no.
Age is growth and deterioration of the body. Time only affects how fast or slow it occurs. If you time travel, you will keep aging at about the same rate, only you would be jumping around different time periods.[/QUOTE]
What rate are you talking about though? Are you talking about our growth rate here on earth or if we lived in a place with no gravity? On a planet with more gravity we would seem to age at a faster rate due to the strain on our bodies, while we would age less if we were on pluto. What I mean is, by jumping through time like that wouldn''t you be more likely to live for say 130 years than the average of 75?
[QUOTE=UncleJimmema;17193010]What rate are you talking about though? Are you talking about our growth rate here on earth or if we lived in a place with no gravity? On a planet with more gravity we would seem to age at a faster rate due to the strain on our bodies, while we would age less if we were on pluto. What I mean is, by jumping through time like that wouldn''t you be more likely to live for say 130 years than the average of 75?[/QUOTE]
Oh, ok. Well in our years, yes you would technically. But time is relative and to you it might only seem like 85. Your perception of time changes along with the altered rate of aging.
Anyways, my point was just you would still have a limited amount of time to actually time travel, so you couldn't be everywhere at once, because you would die before you could be in all those places.
There is the potential though.
[QUOTE=Dclone2;17193048]Oh, ok. Well in our years, yes you would technically. But time is relative and to you it might only seem like 85. Your perception of time changes along with the altered rate of aging.
Anyways, my point was just you would still have a limited amount of time to actually time travel, so you couldn't be everywhere at once, because you would die before you could be in all those places.
There is the potential though.[/QUOTE]
We are missing something that could change that though as well. Since time travel covers past, present, and future you could potentially find your self in multiple dimensions. Theoretically you could go into the future, go back to the present, go to that time period again and it could be completely different. With this in mind the possibility of going forward in time and finding the secret to immortality (nanobots rebuilding your cells, who knows) may make that possible. The fact that you could end up in many split dimensions makes things a bit difficult though :P
What happens when you contact with something physically while going back in time?
Let's say you're traveling back in time at so called "regular" time speed, 1 second is 1 second but backwards.
Now, you chip a nearby rock wall with a pickaxe, a good hole at that since the rock is soft.
What on earth is gonna happen to it?
[QUOTE=UncleJimmema;17193113]We are missing something that could change that though as well. Since time travel covers past, present, and future you could potentially find your self in multiple dimensions. Theoretically you could go into the future, go back to the present, go to that time period again and it could be completely different. With this in mind the possibility of going forward in time and finding the secret to immortality (nanobots rebuilding your cells, who knows) may make that possible. The fact that you could end up in many split dimensions makes things a bit difficult though :P[/QUOTE]
... the fuck are you talking about?
If only we could harness the energy of Einstein spinning in his grave grated whenever someone on Facepunch makes a science thread.
Time travel doesn't exist nor ever will. Time was created by man as a way to measure a passing of events, it cannot be changed in any way at all.
[QUOTE=sam.clarke;17193549]Time travel doesn't exist nor ever will. Time was created by man as a way to measure a passing of events, it cannot be changed in any way at all.[/QUOTE]
A duration traveller, mr smarty anal pants
As always with science, there are theories that suggest its possibility, just as there was with the discovery of gravity, electromagnetism, and so forth; It's just waiting to be experimented with.
But what physical elements or properties are there to experiment with? Time isn't made up of anything at all. The closest I can think of to time travel is to travel greater than the speed of light, meaning you will be catching up with photons of light that you have already seen moments ago, appearing for time to be travelling backwards... Or something like that, I don't know.
[QUOTE=sam.clarke;17193627]But what physical elements or properties are there to experiment with? Time isn't made up of anything at all. The closest I can think of to time travel is to travel greater than the speed of light, meaning you will be catching up with photons of light that you have already seen moments ago, appearing for time to be travelling backwards... Or something like that, I don't know.[/QUOTE]
That would only be the same as turning the light on, off and back on again. Really fast.
I'm not quite sure how travelling faster than the speed of light relates to time travel, though.
[QUOTE=Herbie;17191916]One way or another you'd eventually run into a paradox.[/QUOTE]
Like fucking your own grandma
[editline]07:39AM[/editline]
Imagine a pie that my future self has made and gets transported back to my pre-past self.
But I can't eat the time pie because the ingredients haven't been made yet so I have to make them myself
With quantum multiple histories (Richard Faynman - used by Stephan Hawking in Universe in a Nutshell etc), and the Many-Worlds-Interpretation of decoherence (whereby a particle can and does exist in more then one state at any one time when unobserved (not interacting with any other particle)) it seems there would be no paradoxes as a result of time travel. If you did travel back in time and change something, you would simply be creating a new time path. In fact the mere action of travelling back through time would change the time path you are on as [i]your[/i] particles would not have existed in duplicate previously.
This stuff IS backed up through experimentation (such as the double slit experiment etc [url]http://en.wikipedia.org/wiki/Double-slit_experiment[/url] where particles are seen to travel through two slits simultaneously as they exist as a probability wave in more then one location at any one time, rather then a localised point particle) and we use quantum mechanics in everyday objects such as transistors and electron microscopes, before anyone starts bitching about it being a 'pseudo-science'.
It has even been proposed and tested that at the quantum level particles travel back in time [i]all of the time[/i], its just when things reach a coherent macroscopic level that these effects ware off. This has been backed up by experiments with two sheets of metal whereby the circulating time paths of a few particles in-between the sheets are outweighed by the coherent forward-moving time paths of the particles on the outside, causing the sheets to stick. This is known as the[i] Casimir effect[/i].
[url]http://en.wikipedia.org/wiki/Casimir_effect[/url]
As for time travel becoming macroscopically possible, this is probably our best bet:
[media]http://www.youtube.com/watch?v=yYYhIN4aoYs[/media]
Talked about this stuff a lot in my previous thread on Quantum Suicide:
[url]http://www.facepunch.com/showthread.php?t=787154[/url]
If the Holy Grail exist, go back in time when it was made, drink from it and BAM! Immortal. :)
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