PureBasic Forums - English

Hi,

Time traveling into the future is possible! If you are able to build a spaceship that reaches about 90% of lightspeed, you can do the following:

Start inside a spaceship and fly with 90% of lightspeed for about 20 years. Then simply return to home and you will see: In your point of view, you return to the future earth because time has been much slower for you than on the earth. This effect has been proven using atomic clocks inside the space shuttle and by observing time differences between the earth and satellites.

So, this is a practicable way of traveling into future...

Kukulkan

This is how I see it:

When something either happened or could have happened, time has passed. Now if we slow down the rate in which things happens, we won't notice anything because absolutely everything goes slower.

Now here's the problem with going backwards in time: To get from a quicker rate of things happening (time goes fast) to a slower rate, this must happen. Now if we constantly slow time down, we will finally reach the point where nothing happens. If we could slow the time further down, we would go backwards. However, since time has stopped it can't be slowed down. Nothing can be done when the time is stopped.

About the high-speed matter: It really is possible. There was an astronaut, can't recall his name now (seen this at tv) that spent much time in space (few years or so). The modules they use for space travelling are quite fast so he kept spinning all that time in there, doing research jobs. When he came on Earth, the scientists said that he was 0.5 seconds younger that he should have been if he stayed here on Earth. (How the - did they do that ) So this theory really works.

@Trond: I think you're right... As I said, mathematically, we can do this. Practically, there is no " - " for time. There is another problem with our philosophy. We are defining our issues here from our own point of view, mathematically. Maybe our maths is not so advanced to define such processes.

Ah well, gotta run... Mein coffee is boiling .

PB: you just said that Carl Sagan and Albert Einstein were stupid?

What have they invented that moves
faster than the speed of light? Exactly. It's just talk with no empirical proof

.

As i said this is one of the problems. But yes, moving faster than light will let the time go backwards. Its actually quite simple if you first get the idea.

Mathematics are with us.


Well i have certainly read a lot of good points here

So if you fly a spaceship at twice the speed of light away from the earth for 20 years and look back at the earth you will see it as it looked 40 years ago, then you fly back to earth at 4 times the speed of light and you get back in 10 years so do you get back to the earth as it was 30 years ago?

You would actually have taken 30 years of flying and gone 30 years back from when you started so an overall time travel of minus 60 years.

I DONT THINK SO.

I bet you would get back to earth thirty years after you left.

Nono, the speed of light matter refferes only to you . Time travel affects only your body because you moved really fast, not the Earth. So YOU would be 20 years younger that you would be normally IMHO.

Inf0Byt3 wrote:Nono, the speed of light matter refferes only to you . Time travel affects only your body because you moved really fast, not the Earth. So YOU would be 20 years younger that you would be normally IMHO.

yes

Isn't it a relativity thing anyway. Why would you be younger. The spaceship is travelling really fast but because you are in the spaceship you are not actually affected by the speed.

Let me try to put that another way.

If you were sat at the back of concorde which was travelling at one metre slower than the speed of sound and you get up to run to the front of the plane then you are in theory travelling faster than the speed of sound and so you should cause a sonic boom but because of relativity you don't actually cause the boom because you are only moving at your normal speed, you are isolated from the events of the speed.

So if you are in a spaceship travelling at twice the speed of light for 20 years you would still get 20 years older, surely.

> PB: you just said that Carl Sagan and Albert Einstein were stupid?

No I didn't: I said they haven't provided any proof yet, that's all.

PB wrote:> PB: you just said that Carl Sagan and Albert Einstein were stupid?

No I didn't: I said they haven't provided any proof yet, that's all.

True. Well no one has in this case. Its all just theories heh

I've just returned from 10 years into the future.

Everyone was wearing Purebasic t-shirts, Bill Gates had been indicted for crimes against humanity and Albert Einstein had travelled back in time to explain how he'd invented relativity after he'd fallen out of an apple tree whilst trying to peer down some woman's top!



What is time anyhow?

PB wrote:> PB: you just said that Carl Sagan and Albert Einstein were stupid?

No I didn't: I said they haven't provided any proof yet, that's all.

Actually there is proof if you bother to look. A body of mass moving extremely fast does indeed alter time relatively for that body. Gravity also affects and warps space time. There was a famous experiement done with two sync'ed atomic clocks, one at sea level that didn't move and one in an aeroplane that traveled around the world. When compared later they were different.

This is all pretty advanced physics and i dont pretend to understand all of it. If you read articles on einstein you will see that some of the most eminent scientists in the world agree with quite a lot of what he said. It's all very entertaining too.

thefool wrote:I have a few problems. Now to say my personal theory, I believe it is possible to travel back in time if you move beyond light speed. Looking back in time is certainly possible, and we can see great examples looking at the sun. You see the sun that was 8 minutes ago. If we take all time as being the same all over universe, we see the sun 8 minutes ago, and it is now what we will see in 8 minutes.....

Seeing light that was generated 8 minutes ago doesn't mean your looking back in time. Your just seeing an effect of something that happened 8 minutes ago, not the actual event, your just seeing time that has passed. Being able to follow the light back to the event at the same time the event occured would be travelling back in time, seeing the effect of the event would not be travelling back in time. The greater the distance the longer it takes for the light to arrive, thus, the end result of the original effect (the end result being the light we see now that was generated from the original effect at the source (sun) 8 minutes ago), implies (and confirms) that distance is not a constant across the universe because it takes light longer or shorter amounts of time (the end effect - the light) to arrive depending on the distance (might only be billionths of a second). However, the speed at which that light travels is a constant. Its the speed at which the light travels (the constant) that you would need to match or exceed to be able to arrive at the source at the moment the event occured, if you do this you would be travelling back in time. Time consists of two things; an event starting point and an effect. The effect (in the case of our sun example) of what happens at that event starting point is what we see and what we call time. So just knowing that time has passed (the event that generated the light, then the light arriving, the interval between those two) is not seeing back in time, its just seeing time that has passed.

My personal theory...

Time does not exist, it's a concept...
That's what Einstein really meant with 'time is relative'...

Everything happens at the same 'time', but due to our scale and spacial positition we invented the concept of 'time'.

There is only space and time is a constant.

Time travel is not possible, but mass relocation in space is, in a form we would consider instantaneous

Also with my theory i can explain why you can move faster the light...
Simply because what we are analysing is the residual trail of energy left behind when the photon is analysed, and not the actual photon, because it is already in another space area.


Time concept varies a lot from large scale (like planets) to small scale (like quarks)....

I'll share with you a bit more later on, i have no time at the moment to write it all down

As i mentioned, i for sure do look back in time. I don't TRAVEL back in time, nor can i be there, but for sure i look back in time. Time that has passed = past = back in time from "NOW"

Kale: you are right i forgot it. Its actually prooved.


time is relative. So right