Bjarne
Philosopher
- Joined
- Oct 6, 2009
- Messages
- 5,087
Yes.
Bjarne...
my question was quite deliberate...
thinking of say SR and GR as purely mathematical theories (stay with me here)...what is the requirement (as you stated) for density in order to define[/B curvature? mathematically that is.. what is the requirement in mathematics or the relationship in mathematics whereby curvature of a given 'space' or 'spacetime' is inherently reliant upon density?
I suppose I am asking what a lot of others have already.. where is your rigorous formulation in mathematics in order that the theory can be tested and compared to existing ones... so that instead of 'handwaving' ideas it can be formally and clearly matched against observations?
Generally speaking, in modern physics, without that sound background anybody would be free to say almost anything and get away with any old rubbish.
It is not a conspiracy against those poor at maths, merely a way of defining clearly your theories predications so that they can be tested against observation.
So...
Please show me, in your favourite theory, the mathematical link between density and curvature...
(it may help to define curvature first, and indeed density).
Replacing the expression “curvature” with “space-density” is not the answer of everything, the new expression is only replaced to allow your imagination to follow a main thread, and hence hence follow "gravity" into different aspect of science.
For example, if you understand that matter is absorbed space, it is easy as a consequence to get a much better impression of what is then the consequences of that “gravity is lost” – which mean when matter is losing its ability to keep space absorbed.
Furthermore it allows you to understand why there is resistance against motion (both against acceleration as well against constant speed). This will automatically solves “mysteries” such as the missing link to fully understanding ice ages, and all kind of space probes anomalies.
The main thread also leads you to the simple conclusion that space (gravity) already is a flexible property whereby the unnecessary invention (a repulsive force) so called dark matter , not is necessary, the property is already included in general relativity, (but far so dramatical) so why invent it again.
I have never claimed that I have all the answers, still I wonder a lot, for example why the mass of a galaxy (etc) is proportional with a magnitude of a black hole; - and that there are no certain reality (but a lot), - and much more.
The problem to answer your question and calculate the density is maybe that there are much larger surprises waiting to be discovered.
I mean you have often hear about fantasy multi dimension, but maybe the final understanding when it comes to gravity must basically be understood in a 2 D perspective, - this is at least how gravity density seems to work according to the inwards square law, - since the magnitude is decreasing as a result of the inwards square, and not as a result of cube.
Even to begin to speculate in such 2 D direction seems of course to be crazy, - but quantum physics learn us long ago, that this is what we shall expect.
I ‘am not saying that the third dimension or the fourth not count of course these does, but I am saying that everything seems in the end so strange that our understanding simply cannot follow.
I would not be surprised when also, - the way we observe reality, - one day is included (much more) - also this is in fact only basically a 2 D reality.
The third, - the depth of space / distances is not something you’re directly “observes” but something you learned so good that you have forgotten that your own reality basically only is 2D.
A child have to learn that there is 3 meter to the wall etc,
Think about the fact that there are no certain realities “out there” – but the environment you live (speed and gravity) is decisive for “which” (of plenty) realities you would see .
So we can't say the reality is exactly like “that” , - you too and your environment is important too.
I mean almost like the 3D is an illusion that even also a computer can simulate. – But well this was just a crazy thought. I know this was "too much" but I hope not so much too much as for example the parallel Universe etc.. We must be open for all possibilities, also the most "insane".
I am optimistic; step by step in the future I am sure there will come more strange things we have to accept, as it was when GR/Gr and quantum physic was introduced. This was only the beginning.
I wrote this several years ago > http://www.science27.com/english/quantum_physics.htmlJust so that I do not misunderstand you, can you define what you understand by "spin" of a particle?
Also check this http://www.phy.ohiou.edu/~elster/research/dspin.html
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