More on the twins paradox.?

Question

I've read some other Q and A here on Yahoo about this subject and am still highly unsettled about the accepted answers.
Take this link for example
http://answers.yahoo.com/question/;_ylt=AtEwZPUTuGon0dYaQ3mZchAjzKIX?qid=1006050710473
You all say that it is acceleration that breaks the symetry or ∆a, but what if the acceleration only happens during 1% of twin II's journey and the rest of the time he coasts. Is the entire time discrepency take place just in the accelerating periods? Because during the time that he coasts it seems the motion really is symetrical. And yet by actual experimental data this doesn't seem to be the case. It would seem to me that there must be something else responsible for breaking the symetry. Suppose also that at the furthest point of twin II's journey he stopped and we then accelerated the earth to meet twin II. What happens then? I'd like to suggest something different such as the proximity to mass or matter that breaks the symetry. What do you think?

***sigh***
You guys can contact me if you want to make sure of how much I know.

Answer 1

I think you have misunderstood what the paradox actually is.

There is no problem with the fact that we measure time running slower in a frame that is moving with respect to us. We can see this easily in any number of experiments.

The paradox is that as stated the problem seems symmetric because it describes two frames of reference moving with respect to each other, with no reason to choose one over the other, so it is not obvious which twin should age less.

But the wording of the problem belies the truth.

There are, in fact, three frames. There is the rest frame of the twin at home. There is the frame of the twin travelling away from Earth. And there is the frame of the twin returning to Earth.

The travelling twin spends time in two of these frames, and so the experiment was never symmetric. There is no need to account for acceleration to explain the result (though there would of course be lots to come home). You can do it all with a space time diagram looking at the times these three events occur in the THREE (not TWO) frames:

1. twin leaves
2. twin turns
3. twin gets home

Answer 2

Time is a velocity "c". Mass is composed of physical time. The one moving has an increase of energy in direction of movement. This is realized as hf = mk (kinetic energy). As the energy in direction of movement increases, energy at right angles decrease proportionately.

The reason for the above is that, at rest a mass has the potential of energy moving any direction at the same speed. When a mass moves at the speed of light, minus 2 mps, energy has the potential of movement at right angles to direction of travel of 2 mps. At the speed of light, there would be no movement possible in any direction, for all energy would be in one direction only.

Being frozen in time due to linear movement means that all forms of energy transfer becomes less and less. When this happens all systems, electrical, bio, etc. move toward zero. The moving twin ceases to age, because he begins existing more and more in only a single dimension, and ceases to exist according to the three dimensions of time that his twin lives in.

Answer 3

Symmetry is not the only thing responsible.