Wow, just wow. I'm a guy who keeps up with recent news, and by recent news I don't mean the news media. Like, actual news.
Here recently, we've broken the speed of light.
http://www.meta-religion.com/Physics/Relativity/ broken_speed.htm
Well, personally, I think this means we're going to be able to time travel a lot sooner than everyone thinks. What's your guys' opinions on this?
ID:183340
 Aug 23 2007, 11:39 am
|
|
Time Traveling is a bad thing if someone reverses time we would'nt exist yet and the time we are in won't exist se there is no comming back and if he messes up one thing the future can change imagine what that can do to us!
| |
He's right time is a very important thing one small prbplem could lead to a huge problems in ur original time
| |
Game sabre wrote:
Govan wrote: Depends, perhaps the person who goes back in time gets thrown into an alternate universe where they have gone back in time leaving the original timeline and us oblivious to any time travelers and the only people who know this time traveler are the people in the alternate universe. Or perhaps people have come back and theres been massive coverups :P | |
Unless you go on the assumption that going back and changing something will create and alternate timeline that branches off from the original. Then we would have several timelines co-existing with our own.
| |
What I would like to know is how they "know" that the particle is traveling at the speed of light, and not just very fast.
186,000 miles per second between a 3-foot area would probably look the same as if you were going 10 miles per second, I can't imagine any real way to distinguish between and I doubt any form of radar can pick it up. As for time travel, I don't see how that would be really possible, I mean it's not like the world has old save file backups, stuff happens and then it's over. | |
I actually prefer teleportation to time travel. What has happened in the past is meant to be looked upon and not undone. I would love to be able to see my past through a TV or something, though, and that seems entirely more doable.
But yeah, teleportation, kid. :D In fact, scientists already have working teleporters that are able to send a couple of atoms at a time from one location to the next and have it actually reform on the other side. It'd be real cool if we were able to see a video where they transfered a live creature. You know, they say you lose your soul in teleportation travel. | |
I could see jumping forward in time, but not in reverse.
Anyways, they know how fast the speed of light is, so they must have been able to measure it somehow, so they should be able to measure other speeds in comparison to that. | |
The Naked Ninja wrote:
As for time travel, I don't see how that would be really possible, I mean it's not like the world has old save file backups, stuff happens and then it's over. But then again, it's not like the universe works like a BYOND game. =P I'm not going to comment on some of the stuff said in this thread (like oh noes- don't go back in time and step on a flower, you might end up marrying your grandfather and inventing pogs!), but time is a dimension. Just as we traverse space, we traverse time. The hard part is moving through time in anything other than the one direction we're used to. I won't try to pretend that I understand any of this stuff, but there are ideas that are pretty goddamn freaky. | |
First off there's no way to travel back in time. Majority of physicists agree on this. There's just no way that it could be possible.
Just because space-time is a dimension, does not mean we can alter or change the laws of it in any way. It has guiding rules just like every other thing in this universe. | |
Jon Snow wrote:
First off there's no way to travel back in time. Majority of physicists agree on this. There's just no way that it could be possible. Just because they agree on it doesn't mean it is accurate. The fact is, most of this would all be based on theory and nothing more. It can't really be proven true or false at this moment in time. We may never really know how time or space really works. | |
Jon Snow wrote:
It has guiding rules just like every other thing in this universe. Rules are meant to be broken. As stated in the article: Dr Nimtz told New Scientist magazine: "For the time being, this is the only violation of special relativity that I know of." We already broke one. Who says the laws and rules we made for this Earth are 100% correct? Just because we tested it and came up with the same results does not mean they are final. Every rule and law of physics we ever created could be completely wrong. As time goes on, we are breaking more and more rules we have created. | |
I don't get the whole small changes equal big changes thing. If giant events were often triggered by small things wouldn't we have had a much more dangerous world? I mean whether or not you choose to move a box probably isn't going to blow up half a continent. It seems to me that although there could be rare occasions of huge changes it would most likely end up as relatively the same world.
| |
Time Traveling is a bad thing if someone reverses time we would'nt exist yet and the time we are in won't exist se there is no comming back and if he messes up one thing the future can change imagine what that can do to us! Well the thing is the past has already happened including all the stuff time travelers have done. If that hasn't happened yet then there was really no time travel invovled. And since I'm still here I can only assume that the events led up to the current moment don't include anything that would remove me. But who knows. Maybe the results of time travel changed things so that I would exist! However I think the more likely thing about exceeding what we once thought were limits just means we need to reevaluate the theories involved. | |
Actually, there are multiple ways current theories allow you to go 'back in time'. They're a bit unlikely and difficult, but it is possible to construct a closed timelike curve.
First solution - In a rotating universe, you can derive from general relativity that all particles would have a loop in their space-time path - they all 'run into themselves' in the past. If you're in a rotating universe, you go back in time by default. Admittedly, it's a bit difficult to get a universe rotating if you're not in a rotating one already. And we don't think our current universe is rotating. Second solution - if wormholes exist, you can make a pair of them and then drag one end around at close to the speed of light. Thanks to time dilation, it is now younger then the other end. If you hop into it, you come out at the other end when it was the same age. Problem: Requires stable wormholes, and you need to get the pair far enough apart in time that you can gain time by running around the loop. To make it worse, you can't go back in time past the creation of the wormhole pair (Which seems to hold true for most engineered time-travel solutions) Third solution - If you have a large cylindrical object rotating in space, and you travel around it in the direction opposite to which it is rotating, you get dragged 'back' in time by a little bit. Problem - can't go past creation, requires a really massive object and fast speeds to be worthwhile. I think there are a few others, too. Of course, I doubt we'll ever actually be able to put into practice any of these. At best, they're possibilities that we'll never reach. At worse, they're one of the holes in current theory. | |
I greatly doubt they actually got something going faster then the speed of light.
| |
If we can time travel back, wouldn't we have already met a person from the future?
But that's not to say we can't go forward.