- #36
Lifegazer
I'm glad you pointed that out drag. But it seems that some people had a few problems with those 3 premises I mentioned. Although you yourself seemed to accept them.Originally posted by drag
LG, this is turning into a physics debate...
What I shall do now, is present those premises again and qualify each one in regards to the discussion so far. Shortly, baring official condemnation, I'll then proceed to the crunch and get to the point of my argument. So...
1) All observers will see oncoming light at a constant velocity - 'c' - regardless of their own velocity, and regardless of the direction from which they measure light's velocity. Because of this, we declare light-speed to be 'absolute' (universal).
Everyone seemed happy with this as it is, except to also mention "in a vacuum". I explained that this wasn't relevant to the point I was making. Light's own velocity might be slightly variable, but we all see the same variance. Light's particular velocity through a specific medium, is a constant (as observed by everyone).
2) The motion of the observer will affect the actual value of that observer's time and spatial experience. I.e., when an observer accelerates, he/she inadvertently alters the consistency of his/her time & space in relation to the experience of other observers. Hence, motion alters the value of time and space.
The point I wanted to make here is evident in the well-known twin-paradox. The twin who accelerates through space causes his experience of time & space to be relatively-different to the time & space he would be experiencing on Earth. The age-comparison with his twin, afterwards, is evidence to support the fact that the twin's acceleration has slowed down his own aging process - slowed down time for himself, relatively to his previous circumstance - since he is now relatively younger than his brother. Once back on Earth, he ages exactly like his brother. This shows that his own deceleration has again altered the 'substance' (for lack of a better word) of his own time and space. His brother now ages at the same rate as himself. Thus, his own velocity is responsible for how he ages, relatively, to everything else. Consequently, his own velocity/motion through space is the 'cause' of how he actually experiences his space & time.
Thus, not only are the concepts of space & time 'subjective', they are dependent upon the observer experiencing nothing 'strange' as he accelerates through spacetime: everything is 'normal', so to speak. The 'second' feels like a second, and a 'meter' looks like a meter should look: Experience, is a constant - nothing ever seems to change, but it does, as we accelerate or decelerate through space, in relation to the not-yet-defined references for these supposed velocities of motion.
3) However, even though time & space are altered by motion, the observer will not notice anything different. His experiences will seem 'normal'.
Hopefully, the previous paragraph qualifies this statement. And indeed, the mathematics are dependent upon the experience of '1 second' and '1 meter' being experientially-constant. If the actual subjective-experience of '1 second' and '1 meter' was not consistent amongst all observers, then none of the mathematics of relativity would apply - for you cannot have equations which apply to all observers' understanding of time and space, unless that time & space has a logical consistency amongst all observers, at all times. Therefore, the experience of (or, the feel for) '1 meter' and '1 second', is universally constant amongst all observers (needs to be, so that one set of equations can apply to all observers' relatively-differing experiences of those parameters). If 'experience' of a set-parameter [space or time] was not universal, then any mathematics referring to space and time would be meaningless.
That's a point I should emphasise: The mathematics of relativity are dependent upon the universal scale of measurement (the meter and the second) being an experiential-constant, throughout all the relative mathematics. My point is valid: The experience of space and time is a constant, and needs to be for the mathematics to have a universal meaning.
Okay. I'll wait a short-while for the official nod to stop or go.I thougt you had an argument for us, I understand
that you're apprehensive because you don't
want the thread to be locked, but couldn't
you pick up the pace just a bit...