posted on Jan, 29 2006 @ 07:45 AM
Ah, I see.
The evidence I give for the warpage of space-time being "what holds us down" is that without it we have to consider light to have mass - since light
is affected by "gravity". However, we distinctly observe light to NOT have mass - so why would such things at gravity lenses and black holes work?
Because the space around them is bent, is changed.
Imagine a sheet of rubber. Now draw a line parrallel to one side, and somewhat off from the middle (you'll get the best impression of the result this
way). Now, push down on the middle of the rubber, while holding out the corners so that the rubber stretches and bends. What happens to the line?
Besides bending 3-dimensionally, it has also changed it's 2-dimensional position as it approaches into the "warped" space of the rubber. It appears
to be pulled inward towards the bend. It's not that it's actually pulled in, it's that the space the line is travelling across has changed.
Space-Time is very similar to this, except that since light travels (is not a line that's already there), the light does not bend back out as it
leaves the area of warped space - but will instead have a new direction to it. However, that applies to all things. All things travelling perfectly
straight, if they do not adjust their course, will have their position and direction changed AS IF SOMETHING WERE PULLING THEM. But it's not being
pulled, it's that its path has been altered.
So when you jump off the ground, there's nothing pulling you back, it's that the path you're travelling along gets changed. Your overall energy
kinetic energy remains the same throughout the entire voyage (minus air resistance and wind and blah, blah, blah) - but your path slowly changes so
that some of that kinetic energy is turned downwards. Eventually you stop at some point in the air (at this point we say you have maxed your potential
energy - but really it's still all kinetic, just in perfectly diaposed directions) and then enough kinetic energy is changed into a downward
direction that you start moving downwards.
We're living in warped space. How cool is that?
Next question, time. What is time? A philosopher will state that time is an illusion caused by the passage of history/memory. However, that's
metaphysics - not physics. However, I'm starting to find that metaphysics and real physics are starting to converge at some point inbetween.
One idea in physics that, for a time, had a bit of steam (and appeared in Discovery magazine, cover-story) was a theory that the universe is in fact
static - but there are an infinite number of universes, that are but moments in time - and that we're travelling through them in a sort of way.
Or, you can consider time to be the ultimate "X-Axis", something that's there and keeps on counting, forever. This X-Axis, though, is the 4-th
dimension of space (and thus space-time, tada!), and you can travel forwards and backwards, for it makes no distinction between the two, but we
haven't found out how yet. Of course, this gives rise to a notion that there could very well be a Y-time-Axis, which is a temporal "up", and even a
Z-time-Axis, which would be a temporal "width".
Where am I going with all of this? Time is an observer. It is the event which "sees" all. Moreover, however, time is not a constant, and SPACE IS
NOT A CONSTANT. In fact, I believe that there is a supra-verse, extending in every possible direction, with the different Y and Z time-axies
representing different universes where different events take place. Close to us, these events are insignificant. There would be a universe where
instead of an electron appearing on one side of an atom, it appeared on the other. But there could well be a universe where enough changes such as
this could effect something, or where different decisions were made, or any other possible combination of events took place.
Things to think about.