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Thread: Second experiment confirms neutrinos travel faster than light

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    Re: Second experiment confirms neutrinos travel faster than light

    Quote Originally Posted by Grim17 View Post
    The biggest one I know, is that it breaks the time barrier. Time is supposed to stand still at the exact speed of light, so if this particle travels faster than light, based on all we know about physics, the particle will arrive before it leaves. In other words, E=Mc2 is either flawed, or we have just found our first evidence of actual time travel.
    cool!!!!

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    Re: Second experiment confirms neutrinos travel faster than light

    Quote Originally Posted by Grim17 View Post
    The biggest one I know, is that it breaks the time barrier. Time is supposed to stand still at the exact speed of light, so if this particle travels faster than light, based on all we know about physics, the particle will arrive before it leaves. In other words, E=Mc2 is either flawed, or we have just found our first evidence of actual time travel.
    Why is time supposed to stand still at the exact speed of light?

    Not arguing or anything - just curious to know what makes c so special regarding the passage of time.
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    Re: Second experiment confirms neutrinos travel faster than light

    Quote Originally Posted by samsmart View Post
    Why is time supposed to stand still at the exact speed of light?

    Not arguing or anything - just curious to know what makes c so special regarding the passage of time.
    I'm not a physicist, but I have watched about every documentary made in the last 20 years, and if we were able to go in a rocket at the speed of light, supposedly time would stand still, while everything else would continue to progress through time. I think it's based on light being the speed limit of the universe, which would also include time's speed limit.

    Here's a documentary from the series "Through the wormhole" discussing time travel:

    Last edited by Grim17; 11-20-11 at 10:52 PM.

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    Re: Second experiment confirms neutrinos travel faster than light

    Quote Originally Posted by samsmart View Post
    Why is time supposed to stand still at the exact speed of light?

    Not arguing or anything - just curious to know what makes c so special regarding the passage of time.
    Because the faster you go, the slower time passes and the slower you go, the faster time passes. One way to look at it is with each of them being vectors with an inverse relationship in magnitude. If you are standing still, velocity is a 0 vector and time passage is at it's highest magnitude. But as velocity increases, the vector of time decreases in magnitude.
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    Re: Second experiment confirms neutrinos travel faster than light

    Quote Originally Posted by samsmart View Post
    Why is time supposed to stand still at the exact speed of light?

    Not arguing or anything - just curious to know what makes c so special regarding the passage of time.
    As objects approach the speed of light, time slows down for them. So if you get in a spaceship and spend an hour joyriding near the speed of light, many years will have passed on earth when you return. Theoretically, if you could travel at exactly the speed of light (which you can't), you would appear frozen in motion and the clocks on your spaceship would appear to have completely stopped to a person on earth who was looking in the window of your spaceship. But everything would appear normal to you until you stopped...then you'd notice that an infinite amount of time had passed and the universe was completely dead from heat death.

    The speed of light is a maximum speed because a lot of infinities happen if you could travel at exactly the speed of light. You'd become infinitely massive, you'd become infinitely thin, your line of vision would become infinitely narrow, distant objects would appear to have no distance at all, and an infinite amount of time would pass outside of your spaceship. This is why it is impossible for anything that has a mass (whether it's a spaceship or a neutrino) to travel at the speed of light.

    If something is exceeding the speed of light, that would mean that it was traveling backward in time, it would weigh more than the entire universe (or possibly weigh less than nothing), and it would have negative width. Therefore, color me skeptical.
    Last edited by Kandahar; 11-20-11 at 10:48 PM.
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    Re: Second experiment confirms neutrinos travel faster than light

    Quote Originally Posted by Grim17 View Post
    I'm not a physicist, but I have watched about every documentary made in the last 20 years, and if we were able to go in a rocket at the speed of light, supposedly time would stand still, while everything else would continue to progress through time. I think it's based on light being the speed limit of the universe, which would also include time's speed limit.
    I don't mean this as a back-handed compliment, but I'm actually amazed that you're interested in this! Maybe there's hope for you, yet

    I'm blown away by this stuff. I don't really know what to think, but obviously there will be many experiments and efforts to examine these findings. I've seen and read quite a bit about quantum theory and string theory, and I really think we're just beginning to break ground in these fields. I think quantum computing will exponentially increase our knowledge in these fields, but as of right now, most of the theories in these fields sound ridiculous or wrong. But that could very well be because my mind has no way of grasping such complex information.
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    Re: Second experiment confirms neutrinos travel faster than light

    well, here's my question: is everything is relative, doesn't that mean that if one object is moving at 3/4 the speed of light in one direction, and another object is moving at 3/4 the speed of light in another...when they pass each other...won't it appear that they are both moving at 150% the speed of light?

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    Re: Second experiment confirms neutrinos travel faster than light

    Quote Originally Posted by Thunder View Post
    well, here's my question: is everything is relative, doesn't that mean that if one object is moving at 3/4 the speed of light in one direction, and another object is moving at 3/4 the speed of light in another...when they pass each other...won't it appear that they are both moving at 150% the speed of light?
    You mean with the naked eye? I doubt you would be able to differentiate between them.
    Last edited by whysoserious; 11-21-11 at 12:06 AM.
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    Re: Second experiment confirms neutrinos travel faster than light

    Quote Originally Posted by Thunder View Post
    well, here's my question: is everything is relative, doesn't that mean that if one object is moving at 3/4 the speed of light in one direction, and another object is moving at 3/4 the speed of light in another...when they pass each other...won't it appear that they are both moving at 150% the speed of light?
    No. Both objects will appear to each other to be moving at less than the speed of light. This is because time actually slows down for both objects as they approach light speed. So from the perspective of a third party who is observing both objects zipping past each other, it will appear that one second after they pass they are 1.5 light-seconds apart. But to the objects themselves, it will not, because "one second" doesn't mean the same thing to them as it does to the third party observer. One second after they pass each other, an observer aboard one of the objects will calculate the distance between them to be more than 3/4 of a light-second but less than 1 light-second.
    Last edited by Kandahar; 11-21-11 at 12:17 AM.
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    Re: Second experiment confirms neutrinos travel faster than light

    Quote Originally Posted by Grim17 View Post
    The biggest one I know, is that it breaks the time barrier. Time is supposed to stand still at the exact speed of light, so if this particle travels faster than light, based on all we know about physics, the particle will arrive before it leaves. In other words, E=Mc2 is either flawed, or we have just found our first evidence of actual time travel.
    Not exactly the first evidence. That would probably come from the world of quantum mechanics, e.g. Freaky Physics Proves Parallel Universes Exist | Fox News

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