i have another theory idea
everybody move in the speed of light

there is no such things as if a transport that can make us travel as fast or faster than light, then we will moving back in time
like the twin paradox which proposed by Einstein

my idea:
we see everything moving in the speed of light
when a car move faster than us, the the car is moving in a different velocity, but still travel in the speed of light. agree?
if we ever created a rocket that can move faster than light, then we see the rocket moving in the speed of light, but in the passenger in the rocket also see us moving in the speed of light.

just my idea........any1 can convince my idea is wrong?

This post has been edited by thken: Dec 19 2009, 01:18 AM

well, your title there is wrong :-)

huh? can you point it out?

the 'of' is wrongly spelled

What do you mean by that?? Everybody moves in the speed of light??

Quote
we see everything moving in the speed of light

I thought that we only see because the object reflects the wavelenght of a certain speed (balance of all wavelenght is the speed of light)

Hence if we're travelling at a speed of light?? Which I think is humanly impossible.. (Think of the G-Force we have endure first) Won't you think that we see... nothing???

No??

even when we idle, we move too, because the earth moves

if even the earth and whole solar system is moving in the universe, and we dont know the speed of it
therefore c=f(landa) can't be used when calculating object moving in the speed of light. no?

This post has been edited by thken: Dec 19 2009, 02:10 AM

Okay, what do you mean firstly by: everybody move in the speed of light?

Relativity doesn't allow you to add velocities in the sense that 0.75c + 0.75c = 1.5c, but it'll end up to be less than the speed of light, c instead.

what i mean here is everything in the universe travel in the speed of light

And how does this occur?

First of all, if you subscribes to relativity theory, things with mass can only approach the speed of light, can never be equal or exceeds it even both things are traveling in opposite direction.

Anyway, if you are referring to the twin paradox, where a sister (A) stays on earth and another (B) travel in a spaceship in near c speed, which one will stay younger? The answer is the one in spaceship.

From velocity perspective, if B is moving away from (A) by using A as a reference point, it is equal to A is moving away from B in opposite direction by using B as a reference point, why B is younger? Why not A? Is that your question?

I believe it is something to do with the accceralation impact and also the impact on the biological clock that B is experiencing as she is traveling in high speed.

Yea... Thanks for clarifying though...

But don't you think by making that statement you're saying that nothing can be calculated in terms of speed... For example, a proton traveling at 300kmph, if the earth is moving, and so is the universe, then it's not actually moving at 300kmph??

What I think speed of light means, it's that it's roughly 30,000km/sec which is comparaitve to an unmoving object... Lol... Not too sure how better can I define that...

And how do you assume that everything moves in the speed of light when you are not sure what speed are we moving at?? I do believe that no MASS can travel the speed of light... Only energy can... ( Do correct me if I'm wrong though)

---

Added on December 19, 2009, 3:46 amWhat do you mean by staying younger though.. I do understand that she gains more time because of that but gaining more time, doesn't mean that she'll stay younger..

Be reminded that aging is not a passage of time, but an accumulation of biological events that occur over a period of time.

This post has been edited by hunter1012: Dec 19 2009, 03:47 AM

Staying younger means the total elapsed time experienced by B is shorter than A when they meet up again. If 10 years has passed for A on earth, B might only experienced 7 years traveling.

If B and A carried a digital date and clock system with them, the date and time of B would be shorter than A.

B is younger as she was within the timewarp environment that was different compared to A.

Here is one extract from wiki:

If we placed a living organism in a box ... one could arrange that the organism, after any arbitrary lengthy flight, could be returned to its original spot in a scarcely altered condition, while corresponding organisms which had remained in their original positions had already long since given way to new generations. For the moving organism the lengthy time of the journey was a mere instant, provided the motion took place with approximately the speed of light. (in Resnick and Halliday, 1992)

The idea of rocket travelling faster than light and going into the past, means we could very well send a nuclear warhead anywhere, at anytime into the pass. That sound dangerous...

Anyway, you can't reason speed of light without considering the effect of space-time continuum. If 2 person, one of them (person A) travel to Mars. With existing technology, he'll reach there in 18 months (June 2011). Then the other person (person B), travel at speed of light for 18 months, going many places and finally stop at Mars on June 2011. When these 2 person meet, both of them aged 18 months, neither is younger nor older. The reason because they arrive at the same space, on the same time we specified.

Next, person C, travel to Mars at speed of light in 4 minutes. Along the way, he look back at earth, to him, time has stopped on earth. As soon as he arrive at Mars, he took out a telescope and look at earth. He will discover that the earth look exactly the same as he left. Physically, he aged 4 mins. But at mars, in earth-time, he has not aged. A friend on earth, look through telescope, will see that, as if, he teleport to Mars instantly and has not aged at all.

Then he travel back to earth at light speed, took him 4 minutes. Similarly, he look at earth along the journey, and find that time pass twice as fast. Back on earth, physically he aged 4 minutes, but in earth time, he aged 8 minutes.

Aging still applied to the lightspeed traveler, only on relative s

On earth, despite if we travel at light speed, it makes no different and we will aged the same. Because earth locate on a very specific (and small) space-time continuum. Travelling beyond speed of light will only make us arrive at our location faster, still, neither are we going to be younger or neither can we go back in time. That is on earth scale.

----

This post has been edited by marsalee: Nov 13 2010, 08:08 PM

Yeah. And your source of unlimited knowledge is wrong. Time do exist.

----

This post has been edited by marsalee: Nov 13 2010, 08:09 PM

FYI, a hypothesis is classified as untrue when it is proven wrong, not the other way round. If time don't exist, how else did you grow old?

genetics?

----

This post has been edited by marsalee: Nov 13 2010, 08:09 PM

How does genetic evolve? How does our body cell regrow? Evolution happen because time exist. It's like proving gravity. We say gravity exist because stuff fall onto ground. If time don't exist, stuff won't even fall. The sequence of event from day to day is the result of time.

---

Added on December 21, 2009, 12:37 amWell, I'm just giving a suggestion to your hypothesis, "time does not exist". In order to make your hypothesis true, you need to prove that time does not exist. I'm not judging your unlimited limited knowledge whatsoever.

This post has been edited by Aurora: Dec 21 2009, 12:37 AM