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PlayWithFire · 2010-07-23 03:58:11

Yah I always figured that high speed cameras would be difficult to use, it would just never work perfectly

calebxy · 2010-07-23 04:05:39

The problem is, when you're running, it will be slightly blurry. (The Japanese version, not the Quicksilver.)

Last edited by calebxy (2010-07-23 04:06:09)

ssss · 2010-07-23 04:06:12

Yay im 13

melikecheese · 2010-07-23 04:12:14

ihaveamac wrote:
My school started yesterday. July 21. My BDay was July 14.

My school FINISHED on the 22nd.

calebxy · 2010-07-23 04:18:54

Stay on topic, please. smile

what-the · 2010-07-23 05:30:44

Yes it's true time travel is possible. Infact you are doing it all the time.

Say you went a train trip and no one else in the world does. You will have aged less than everyone else. This because motion leads to a slow down of time.

Lets me talk about light for a bit. Well light moves at a constant rate of about 3x10^8 meters a second. It can not go faster than that NO MATTER WHAT, even if it starts on a moving object.

Here is a diagram for visual learners of how "time travel works".

Thats about it. Click the images to see it full size.

calebxy · 2010-07-23 05:32:57

Yes, I already knew that. But as I said before, it's not possible to time travel to any significant distance in time in a short amount of time for the person doing it.

what-the · 2010-07-23 05:49:18

calebxy wrote:
Yes, I already knew that. But as I said before, it's not possible to time travel to any significant distance in time in a short amount of time for the person doing it.

As velocity tends towards the speed of light (c) the amount of time that passes one becomes smaller and smaller. On the other hand as one approches the speed of light the "mass" of the object increases exponentially. This means that more and more energy is needed to get to the speed of light. Infact the actual amount of energy needed to get to the speed of light is infinity so it is impossible to get to the speed of light.

Here's something more interesting. When an object orbits something its velocity is proportional to the mass of the object it orbits. I have calculated that if you where to orbit the sun at a distance of 1.5 km you would be traveling at 99% the speed of light. (Yes I know it's inside the sun) Using the momentum of the suns gravity it would be possible to obtain that orbit (assuming radiation, pressure and heat were not an issue).

Last edited by what-the (2010-07-23 05:54:12)

calebxy · 2010-07-23 05:51:37

what-the wrote:
calebxy wrote:
Yes, I already knew that. But as I said before, it's not possible to time travel to any significant distance in time in a short amount of time for the person doing it.
As velocity tends towards the speed of light (c) the amount of time that passes one becomes smaller and smaller. On the other hand as one approches the speed of light the "mass" of the object increases exponentially. This means that more and more energy is needed to get to the speed of light. Infact the actual amount of energy needed to get to the speed of light is infinity so it is impossible to get to the speed of light.

That's what I said.

calebxy · 2010-07-23 06:08:21

what-the wrote:
Here's something more interesting. When an object orbits something its velocity is proportional to the mass of the object it orbits. I have calculated that if you where to orbit the sun at a distance of 1.5 km you would be traveling at 99% the speed of light. (Yes I know it's inside the sun) Using the momentum of the suns gravity it would be possible to obtain that orbit (assuming radiation, pressure and heat were not an issue).

Or you could try that with a black hole.

Greatdane · 2010-07-23 11:31:25

adriangl wrote:
Greatdane wrote:
It's actually possible to travel in time through the fifth dimension. Imagine you bend a piece of paper around itself. If the paper is the fourth dimension(time) and you are in the fifth dimension, you can make time go into a loop. You can also make creases and such. The third-dimensional equivalent of this is an Alcubierre drive, which warps space to go faster than the speed of light if the light being compared is not within the bubble formed., known as a 'Warp Drive' in Star Trek.

As you travel in higher dimensions you control higher levels and you can change outcomes, probability, and even the laws of the universe.

My reference? Many books.
Well, if we cannot even travel in time yet, shouldn't we wait on that? You would need to be in the ship for quite a long time. And a ship going near the speed of light for an hour(equivalent of 1 year on Earth) would take an extremely large amount of fuel, imagine how much would be needed for time travel as you mentioned.

I'm not talking about a ship. I'm talking about warping timelines. You can do it, you just need the energy output of like 10 suns. You can warp space and time to your needs and jump from point to point in the third and fourth dimensions.

Also, mass cannot be created or destroyed.

rufflebee · 2010-07-23 13:03:27

If Time Travel did exist, don't you think people would rather go back in time then go to the future? I know I would.

calebxy · 2010-07-23 13:06:11

But why? It's already happened. lol tongue

Last edited by calebxy (2010-07-23 13:06:18)

rufflebee · 2010-07-23 13:10:56

calebxy wrote:
But why? It's already happened.

Exactly! They would want to go back in time to fix things. If time travel gets invented, it's probably going to only be for the government and such.

AtomicBawm3 · 2010-07-23 13:46:21

Actually it's not, because of Enstein's equation, e=mc2. When you start getting up towards the speed of light, you're mass starts to change. When you plug in the speed of light into the above equation, you get infinite mass, which means it's impossible to go the speed of light. It's like the literal speed limit of the universe. Technically though, we are time traveling right now, seeing as how it's not staying in one place, we just aren't accelerating through time.

soupoftomato · 2010-07-23 13:52:56

Invisible people would be blind. Eyes rely on light, but for invisibility light has to pass through you.

More on disproving time travel to the past:

http://scratch.mit.edu/projects/soupoftomato/1059219

calebxy · 2010-07-23 14:18:23

AtomicBawm3 wrote:
Actually it's not, because of Enstein's equation, e=mc2. When you start getting up towards the speed of light, you're mass starts to change. When you plug in the speed of light into the above equation, you get infinite mass, which means it's impossible to go the speed of light. It's like the literal speed limit of the universe. Technically though, we are time traveling right now, seeing as how it's not staying in one place, we just aren't accelerating through time.

I know that. But you don't need to go to the speed of light to time travel. Basically, the faster you go, the faster you go through time. So even running makes me travel through time a little bit faster than everyone who's still. Well, time will go slower for me. But only EXTREMELY slightly! tongue

Last edited by calebxy (2010-07-23 14:18:50)

AtomicBawm3 · 2010-07-23 15:17:31

calebxy wrote:
AtomicBawm3 wrote:
Actually it's not, because of Enstein's equation, e=mc2. When you start getting up towards the speed of light, you're mass starts to change. When you plug in the speed of light into the above equation, you get infinite mass, which means it's impossible to go the speed of light. It's like the literal speed limit of the universe. Technically though, we are time traveling right now, seeing as how it's not staying in one place, we just aren't accelerating through time.
I know that. But you don't need to go to the speed of light to time travel. Basically, the faster you go, the faster you go through time. So even running makes me travel through time a little bit faster than everyone who's still. Well, time will go slower for me. But only EXTREMELY slightly!

True, but it's more of an exponential value, so in order to have even a BARELY significant value, you'de have to be going 99.9% the speed of light. No joke.

calebxy · 2010-07-23 15:24:43

Or... a LOT of gravity. Such as a black hole. So in fact, the fact that the faster you go, the more mass you create, is actually useful. Because mass creates gravity, so the more mass there is, the more gravity there is, which in turn, slows down time.

calebxy · 2010-07-23 15:33:07

So with the combined speed and gravity, it should work quite well. But you could also do all that with the speed, which therefore creates gravity, while orbiting around a black hole, which has the most gravity in all the cosmos. That should work! big_smile

Last edited by calebxy (2010-07-23 15:33:34)

adriangl · 2010-07-23 15:47:38

rufflebee wrote:
If Time Travel did exist, don't you think people would rather go back in time then go to the future? I know I would.

Going back in time is impossible. The past does not exist at the same time as the present and the future. That is why it is called the past. But as what-the said, going a faster speed than other people means you age less. So if you were in a race, people standing at the start line(and if you ran a fast speed and were at the finish line) would be behind you in time by a very insignificant amount.

Last edited by adriangl (2010-07-23 15:49:49)

calebxy · 2010-07-23 15:56:34

adriangl wrote:
rufflebee wrote:
If Time Travel did exist, don't you think people would rather go back in time then go to the future? I know I would.
Going back in time is impossible. The past does not exist at the same time as the present and the future. That is why it is called the past. But as what-the said, going a faster speed than other people means you age less. So if you were in a race, people standing at the start line(and if you ran a fast speed and were at the finish line) would be behind you in time by a very insignificant amount.

Imagine time as a cube. You can go forward, but backward is still there, you just can't see it or get to it. But it's still there.

Last edited by calebxy (2010-07-23 15:56:57)

scmb1 · 2010-07-23 16:16:09

This video offers another possible method of time travel. It is kind of creepy to think about, actually...

what-the · 2010-07-23 21:44:30

AtomicBawm3 wrote:
calebxy wrote:
AtomicBawm3 wrote:
Actually it's not, because of Enstein's equation, e=mc2. When you start getting up towards the speed of light, you're mass starts to change. When you plug in the speed of light into the above equation, you get infinite mass, which means it's impossible to go the speed of light. It's like the literal speed limit of the universe. Technically though, we are time traveling right now, seeing as how it's not staying in one place, we just aren't accelerating through time.
I know that. But you don't need to go to the speed of light to time travel. Basically, the faster you go, the faster you go through time. So even running makes me travel through time a little bit faster than everyone who's still. Well, time will go slower for me. But only EXTREMELY slightly!
True, but it's more of an exponential value, so in order to have even a BARELY significant value, you'de have to be going 99.9% the speed of light. No joke.

99% the speed of light makes time go about 60 times slower for the object moving that speed.

You are basicly restating what I said above.

(Those who what to know why time travel is possible look at my above post with the pictures)

m71134 · 2010-07-23 21:47:08

I think time travel is possible. I heard about a camera that can take pictures of things over one thousand years in the future or past. I'm not completely sure how the camera works; it involves the speed of light and some other sciency stuff.

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Re: T/F: Time Travel Possible?

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Re: T/F: Time Travel Possible?

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Re: T/F: Time Travel Possible?

#29 2010-07-23 04:12:14

Re: T/F: Time Travel Possible?

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#30 2010-07-23 04:18:54

Re: T/F: Time Travel Possible?

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Re: T/F: Time Travel Possible?

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Re: T/F: Time Travel Possible?

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Re: T/F: Time Travel Possible?

calebxy wrote:

#34 2010-07-23 05:51:37

Re: T/F: Time Travel Possible?

what-the wrote:

calebxy wrote:

#35 2010-07-23 06:08:21

Re: T/F: Time Travel Possible?

what-the wrote:

#36 2010-07-23 11:31:25

Re: T/F: Time Travel Possible?

adriangl wrote:

Greatdane wrote:

#37 2010-07-23 13:03:27

Re: T/F: Time Travel Possible?

#38 2010-07-23 13:06:11

Re: T/F: Time Travel Possible?

#39 2010-07-23 13:10:56

Re: T/F: Time Travel Possible?

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Re: T/F: Time Travel Possible?

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#42 2010-07-23 14:18:23

Re: T/F: Time Travel Possible?

AtomicBawm3 wrote:

#43 2010-07-23 15:17:31

Re: T/F: Time Travel Possible?

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#44 2010-07-23 15:24:43

Re: T/F: Time Travel Possible?

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Re: T/F: Time Travel Possible?

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Re: T/F: Time Travel Possible?

rufflebee wrote:

#47 2010-07-23 15:56:34

Re: T/F: Time Travel Possible?

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#48 2010-07-23 16:16:09

Re: T/F: Time Travel Possible?

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Re: T/F: Time Travel Possible?

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