How to go back in time?

[Lil Chillbil]

We the forum of linustechtips have a combined iq of OVER 9000 i'm fairly certain we can come up with a way to travel back in time, I screwed up bad and need to redo the last 3 minutes before I decided to make this pointless thread. 

[TheNinjaNextDor]

Whack your head on a toilet seat.

 

Oh yeah that's how you stop time... lel

[Tea1337]

Get on a plane in New York, new York, (Make sure it's a supersonic jet) and Fly to LA. That is actually traveling back in time, because NY is ahead of LA, if you get there fast enough it is considered time travel.

[Shd0w2]

Let's cure cancer first

[Rorgash]

you gotta move really fast, so go out and run, but to get as much speed as possible first take off ALL your clothes and rub up in oil

[Jerakl]

Whack your head on a toilet seat.

A high quality fancy one.

[tedjani]

[Scottonpc]

No, because time does not exist - it is a mental construct.

 

[helping]

Right click on the time in the lower right hand corner on a Windows PC, click on "Change date and time settings"

[Polyvalent]

You gotta make sure you hit 88 miles per hour..

[Mentalguy]

You gotta make sure you hit 88 miles per hour..

You're gonna see some serious shit.

[Kamina]

Be baptized and be reborn. Repent your sins.

[BigChimp97]

Simply go to the small island called Kiribati, it sits on the international date line so is therefore split into two different time zones that can be crossed within the hour, and just go from the east side of the island to the west and boom! Gone back in time

[toggleguy]

Any bad thing that you've done can always be forgiven by that guy who lives in the clouds.

[Polyvalent]

Be baptized and be reborn. Repent your sins.

 

[MrTomnus]

Felt like this thread needed at least one serious post

 

I actually don't think travelling backwards in time is physically possible. I think, personally, you'd need very weird things like a negative mass and faster than light speeds to make that even slightly plausible. However changing the speed at which you move forwards through time is easily achievable The perception of time is directly linked to the speed you are travelling. Time moves more quickly the faster you are moving (or perhaps the more energy you have). Obviously the classic example is the two twins scenario, which helps to explain special relativity.

 

Whether we can stop time altogether is something quite interesting though. Maybe a stationary object does not move through time? So far I don't think this has been tested: we have no way of making a particle stationary, relative to the entire universe. Of course people forget we are moving through space very quickly. We know the Earth spins at around 447m/s. But it orbits the Sun at 29721m/s. Then the solar system will orbit the Milky Way at some crazy speed. And the Milky Way will be orbiting or moving away from... something, at likely very near the speed of light. So yeah, there's no way to actually study stationary particles in real life yet. So that question remains unanswered

 

Professor Brian Cox talked about time travel in a show on BBC a while back, about light cones and how we could possibly use black holes to alter the passage of time. I wanted to watch it again a while back but I couldn't find that part in the video...

 

Edit: Found it! Watch part 1 first if you want more context from the programme http://www.bbc.co.uk/programmes/p01tll5t

[Kamina]

Ah, you understood the reference!

[spwath]

Not possible. Seriously. Going forward in time is possible tho.

[spwath]

Felt like this thread needed at least one serious post

I actually don't think travelling backwards in time is physically possible. I think, personally, you'd need very weird things like a negative mass and faster than light speeds to make that even slightly plausible. However changing the speed at which you move forwards through time is easily achievable The perception of time is directly linked to the speed you are travelling. Time moves more quickly the faster you are moving (or perhaps the more energy you have). Obviously the classic example is the two twins scenario, which helps to explain special relativity.

Whether we can stop time altogether is something quite interesting though. Maybe a stationary object does not move through time? So far I don't think this has been tested: we have no way of making a particle stationary, relative to the entire universe. Of course people forget we are moving through space very quickly. We know the Earth spins at around 447m/s. But it orbits the Sun at 29721m/s. Then the solar system will orbit the Milky Way at some crazy speed. And the Milky Way will be orbiting or moving away from... something, at likely very near the speed of light. So yeah, there's no way to actually study stationary particles in real life yet. So that question remains unanswered

Professor Brian Cox talked about time travel in a show on BBC a while back, about light cones and how we could possibly use black holes to alter the passage of time. I wanted to watch it again a while back but I couldn't find that part in the video...

Edit: Found it! Watch part 1 first if you want more context from the programme http://www.bbc.co.uk/programmes/p01tll5t

Yeah. I simplified it in my part before I read yours. I agree.

[LAwLz]

I strongly recommend against it. It does more harm than good.

The time machine my friend used to have was a gravity distortion time displacement unit.

 

It works because passing through the massive gravitational field of a Kerr singularity will not kill you (if you go into it from certain angles). Remember the experiment CERN did a while ago, when people were freaking out because they thought it would destroy the Earth? Well they managed to create micro-singularities in there. In a few years (from today) they will figure out that they if they fire a big amount of electrons towards these micro-singularities they can alter the size of its event horizon and therefore change its gravitational field. All you have to do is put two of these singularities with the correct rotation close to each other, and you will be able to use them to through time (both backwards and forward) without risking getting crushed by the extremely high gravitational force.

 

This is not all you need in order to travel back in time though. Horrible things could happen unless you use a VGL. It's a system based around four cesium clocks and a gravity sensor. It's used to stop time distortion if it detects a dramatic change in the gravitational force. The reason why you want this is because the Earth moves through space, so if you travel 1 minute back in time you might end up inside a mountain, or a wall or something, because that's the object that was in that space-time location 1 minute before you traveled through time.

 

Here is a picture of the machine in action. The laser is being bent by the gravitational field around the machine.

 

 

Oh and you don't have to worry about paradoxes like any people think. Everett Wheeler's theory is correct. All that will happen when you travel back in time and change something is that you have jumped to another world line.

So in your case, you would cease to exist in our world line, but your post would still be here. From your POV though, you would be able to stop the post from ever being made, and it would never exist in your new world line. The other people in this thread would forever be stuck with your pointless thread though. What's done is done. The only thing you can do is change what happened from your own point of view.

 

Hope this helped!

[gastew15]

I strongly recommend against it. It does more harm than good.

The time machine my friend used to have was a gravity distortion time displacement unit.

 

It works because passing through the massive gravitational field of a Kerr singularity will not kill you (if you go into it from certain angles). Remember the experiment CERN did a while ago, when people were freaking out because they thought it would destroy the Earth? Well they managed to create micro-singularities in there. In a few years (from today) they will figure out that they if they fire a big amount of electrons towards these micro-singularities they can alter the size of its event horizon and therefore change its gravitational field. All you have to do is put two of these singularities with the correct rotation close to each other, and you will be able to use them to through time (both backwards and forward) without risking getting crushed by the extremely high gravitational force.

 

This is not all you need in order to travel back in time though. Horrible things could happen unless you use a VGL. It's a system based around four cesium clocks and a gravity sensor. It's used to stop time distortion if it detects a dramatic change in the gravitational force. The reason why you want this is because the Earth moves through space, so if you travel 1 minute back in time you might end up inside a mountain, or a wall or something, because that's the object that was in that space-time location 1 minute before you traveled through time.

 

Here is a picture of the machine in action. The laser is being bent by the gravitational field around the machine.

 

 

Oh and you don't have to worry about paradoxes like any people think. Everett Wheeler's theory is correct. All that will happen when you travel back in time and change something is that you have jumped to another world line.

So in your case, you would cease to exist in our world line, but your post would still be here. From your POV though, you would be able to stop the post from ever being made, and it would never exist in your new world line. The other people in this thread would forever be stuck with your pointless thread though. You really can't change the past (in the same world line).

 

Hope this helped!

You could also make a phone-microwave and have it work just as well without all the difficult stuff!

[MatheusSanzo]

Buy a plane ticket to somewhere in asia and one back.

Once you come back you will be going back in time.

[LAwLz]

You could also make a phone-microwave and have it work just as well without all the difficult stuff!

Yes but the 36 byte limit makes it pretty much useless. Anything bigger will be squished through a very tiny wormhole, ending up like green gooey mess. I guess it would be OK for sending text messages but that's about it really.

[gastew15]

Yes but the 36 byte limit makes it pretty much useless. Anything bigger will be squished through a very tiny wormhole, ending up like green gooey mess. I guess it would be OK for sending text messages but that's about it really.

If only we could somehow compress the whole mind conveniently into a suitable size.. I wonder..   Damn! SERN is at the door I have to go!!

[Phart]

If only we could somehow compress the whole mind conveniently into a suitable size.. I wonder..   Damn! SERN is at the door I have to go!!

Oh crap be careful... those people over at SERN are pretty brutal.