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Re: "We have broken the speed of light" [Re: Popcorn911]
    #7316754 -

> If I constantly ran instead of walked though my entire life and I had a twin that walked instead of ran then he would age/die before i did?

In the spirit of your question, yes, you would age at different rates. (Assuming that you could control every other possible event that would effect your time of death, the difference in time would be almost unmeasurable, but the difference would be there.) They put a very accurate clock on an airplane and synced it with a very accurate clock they left on the ground. After flying the airplane, they found that the clocks were offset from each other by a tiny fraction of a second, exactly as the theory predicted.

> why does the speed of light effect time?

The speed of light doesn't effect time, it is just a limit. As far as we know, nothing (with rest mass) can accelerate to the speed of light, and nothing (regardless of rest mass) can travel faster than the speed of light. Time is effected by velocity. The effect of velocity on time only matters when you start to get very close to the speed of light.


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Just another spore in the wind.

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Re: "We have broken the speed of light" [Re: Popcorn911]
    #7317247 -

Heres what i mean= If I constantly ran instead of walked though my entire life and I had a twin that walked instead of ran then he would age/die before i did?

Yes, but at walking speeds, the difference by the end of your life would be extremely tiny, on the order of nanoseconds.

If you traveled very close to the speed of light, the difference in time would be very large.

I would stay in it for a couple seconds then get out and be in the future

It would have to spin so fast that you'd be squashed to death, but if you could survive that, yes, you'll hop out in the future. You can never go backward through time this way, though.

why does the speed of light effect time?

The speed of light doesn't affect time. It's just a limit on how fast things can go, and as it happens, the closer you get to that speed, the more your clock slows compared to someone not moving.

As to WHY this happens, nobody knows. It just does. Physicists are trying to figure out why, but that's a very hard problem and we don't have an answer so far.

But we're getting close. The Large Hadron Collider nearing completion at CERN may help answer that question.


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Republican Values:

1) You can't get married to your spouse who is the same sex as you.
2) You can't have an abortion no matter how much you don't want a child.
3) You can't have a certain plant in your possession or you'll get locked up with a rapist and a murderer.

4) We need a smaller, less-intrusive government.

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Re: "We have broken the speed of light" [Re: Diploid]
    #7319574 -

Thank you now I understand :smile:

So the speed of light is the only thing it has to do with effecting time, not the light itself.ok.

Next question, the international space station orbits the earth at like 23,000 miles per hour(or something like that)so wouldent the astronauts on board be effected by that? Like wouldent there be alot of G force?

Or am i missing something?

Also I dont understand WHY you say that you cant travel the speed of light.

Does the speed of light JUST happen to be the same speed that time starts to get impossible and fuck up physics?

I dont understand that WHY at a certain speed things become impossible?

Speed is infinate and so why at the speed of light do things become fucked up?


ALSO what goes the speed of light? LIGHT, nothing can go the speed of light(lol) Light can.

SO WHAT IS LIGHT, could light be a mix of suns and universes that got so fast that they BECAME LIGHT.

Light is apperantly impossible so what time zone is light in? If light can go the speed of light why cant we? Would we turn into Light to another persons perspective?

Thanks i love u all :smile:

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Re: "We have broken the speed of light" [Re: Popcorn911]
    #7319719 -

I dont understand that WHY at a certain speed things become impossible?

Along with the weird time dilation effects, another thing that happens at relativistic speeds is that the mass of the moving object begins to increase.

At 99.99999% the speed of light something with non-moving mass of 1 gram might have a mass of 100 million kilograms, and so to accelerate it a little bit more takes a disproportionately large amount of additional energy.

As you approach the speed of light, the mass of the object approaches infinity. To accelerate a proton to the speed of light would take more than all the energy in the universe. That's another reason for why it's not possible.


--------------------
Republican Values:

1) You can't get married to your spouse who is the same sex as you.
2) You can't have an abortion no matter how much you don't want a child.
3) You can't have a certain plant in your possession or you'll get locked up with a rapist and a murderer.

4) We need a smaller, less-intrusive government.

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Re: "We have broken the speed of light" [Re: Diploid]
    #7320237 -

Diploid said:
As you approach the speed of light, the mass of the object approaches infinity. To accelerate a proton to the speed of light would take more than all the energy in the universe. That's another reason for why it's not possible.


Alright, I have a question.  How is mass relevant to acceleration if there is no gravity or other resistance acting on the mass?


:hippie:

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Re: "We have broken the speed of light" [Re: Quoiyaien]
    #7320356 -

The answer to that is almost a matter of semantics. What the average person refers to as 'mass' is what scientists call 'rest mass'. But there is also relativistic mass. This is the mass associated with an objects speed. Even things with no rest mass can have relativistic mass (like a photon).

Mass in science is a measure of inertia, that is, the harder it is to accelerate something the more mass it has. (In fact sometimes mass is measured by accelerating an object, thats how they 'weigh' things in space)

So now we have defined mass. What do we observe when an object speeds up? As an object increases in speed, it gets harder and harder to accelerate. Example: Increasing speed from 100 to 200 may require 2 units of energy. But increasing from 200 to 300 requires 3 units of energy. What you get is diminishing returns. The faster you go the less bang for you buck you get. At near the speed of light, it would require entire galaxies of energy to increase the speed further.

So, putting this together.... we state that a fast object must have more mass then a slower one since it takes more energy to accelerate. Thats how we define mass and the equations fit observations.

I hope that made sense.

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Re: "We have broken the speed of light" [Re: trendal]
    #7320442 -

trendal said:
Well it may feel instant to me...but I have no delusions about the speed of thought. It's slow compared to what a computer can do (as far as a computer can do it...).


If you have no delusions about the speed of thought, then you are misrepresenting it!

A silicon processing element (PE) certainly can do a single operation in an extremely small fraction of the time a carbon based PE might; however, "thought" is a process which occurs across millions and billions of PEs concurrently. Parrellel processing for the win! This is one reason why neural networks on non-massively parrellel systems are extremely so - not enough processing elements. Hmmm, I wonder if the same is true for HUMANS that are a bit slow? In fact, I'd bet some money on it.


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delta9

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Re: "We have broken the speed of light" [Re: delta9]
    #7320456 -

Still LIGHT GOES THE SPEED OF LIGHT

WTF is light? We know what it is like wavelenghts and shit but wha is it?

If light goes so fast then couldent it be the reason we have time?

Whatever light actually is, its going the speed that fucks up physics.

Could light itself be the reason we exist?(sure it is but u know what im asking)

Why does light go so god dam fast? What fuels it to go so fast?

Is light affected by gravity? ??

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Re: "We have broken the speed of light" [Re: Popcorn911]
    #7320666 -

> Still LIGHT GOES THE SPEED OF LIGHT

Yes, but light is made of photons, and photons have no rest mass.

> Whatever light actually is, its going the speed that fucks up physics.

Not at all.

> Is light affected by gravity? ??

Most certainly.


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Just another spore in the wind.

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Re: "We have broken the speed of light" [Re: Seuss]
    #7320706 -

Seuss said:
> Is light affected by gravity? ??

Most certainly.


How so? Does this mean that light in itself has a "mass" so to speak? With my feeble understanding of physics, i would think that something such as light which i thought had no mass, could not be affected by something such as gravity?

This is just my rambling thoughts i know, but im quite interested to hear.


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"Those who dance are considered insane by those who cannot hear the music." - George Carlin

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Re: "We have broken the speed of light" [Re: DepthToTheCore]
    #7320738 -

Gravity effects alot more things then just stuff with mass.

Black holes have so much gravity that light cannot escape them and thats why there invisable.

Thank you for responding to the light speed thing now i understand.

But still Why is

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Re: "We have broken the speed of light" [Re: DepthToTheCore]
    #7320755 -

> Does this mean that light in itself has a "mass" so to speak?

This is a difficult question to answer. The easy answer is no, light does not have mass, but one could interpret the question in such a way that the answer would be yes. Photons, which make up light, have no rest mass, but they do have energy and momentum, thus they have relativistic mass.


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Just another spore in the wind.

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Re: "We have broken the speed of light" [Re: Seuss]
    #7320994 -

In general relativity, everything will locally go in straight line in space-time, following what's called a geodesic. Light also will follow it's own geodesic such that when space is globally curved by the presence of mass or energy, it will follow a globally bended trajectory which can be calculated precisely. Just picture yourself on the surface of Earth. Go (locally) in straight line and after 40 000 km or so you'll end up having a (globally) circular trajectory.

As for black holes, they bend space-time so much so that inside its event horizon, anything going in any direction will have a downward chaotic spiraling trajectory going further down its core (this trajectory is called BKL singularity for Belinsky, Khalatnikov and Lifshitz who first calculated the interior geometry of a black hole), an inevitable trajectory from which you can not escape. Precisely at the event horizon, I think everything goes in perfect circles. While approaching it from outside without the necessary escape trajectory/energy, I think you just end up winding up closer and closer around it forever.

Edited by deimya (08/22/07 09:40 AM)

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Re: "We have broken the speed of light" [Re: Popcorn911]
    #7322820 -

Popcorn911 said:
ALSO what goes the speed of light? LIGHT, nothing can go the speed of light(lol) Light can.


I watched "The Elegant Universe" last night, and I think they said that Gravity also travels at the speed of light....
I was told this a few years ago as well, I had originally just assumed that gravity was instantaneous....


>^;;^<


--------------------
I'll be your midnight French Fry....  :naughty:

"The most important things in life that are often ignored, are the things that one cannot see...."
>^;;^<

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