What is a vacuum ?

What is a vacuum ?

The empty space between stars ( Galaxies )
Is this space really empty?
#
The detected material mass of the matter in the Universe
is very small (the average density of all substance in the
Universe is approximately p=10^-30 g/sm^3) and therefore
physicists invented an abstract ‘dark matter and dark energy’.
They say: ‘ 90% or more of the matter in the Universe is unseen.’
And nobody knows what it is.
Question:
How can the 90% or more of the Hidden ( dark ) matter in
the Universe create the few % of the Visible matter ?
========================== . .
Question: what is Vacuum?
#
" The problem of the exact description of vacuum, in my opinion,
is the basic problem now before physics. Really, if you can’t correctly
describe the vacuum, how it is possible to expect a correct description
of something more complex? "
/ Paul Dirac ./
#
"Remember gentlemen, we have not proven
the aether does not exist, we have only proven we do not
need it (for mathematical purposes)"..
/ Einstein's famous University of Leyden lecture
of May 5, 1920./
#
Herman Minkowski said about his minus 4D
spacetime continuum:
“ Henceforth, space by itself, and time by itself,
are doomed to fade away into mere shadows,
and only a kind of union of the two will
preserve an independent reality.”
Question. What is the “a kind of union of the two “?
Nobody knows what really Minkowski space is .
#
In Wikipedia we can read:
“ Unfortunately neither the concept of space nor of time is well defined,
resulting in a dilemma. If we don't know the character of time nor of space,
how can we characterize either? “
http://en.wikipedia.org/wiki/Spacetime

#
"Now we know that the vacuum can have all sorts of wonderful effects
over an enormous range of scales, from the microscopic to the cosmic,"
said Peter Milonni
from the Los Alamos National Laboratory in New Mexico.
===== . .
Where is hidden Vacuum?
Vacuum is hidden in every theory.
1.
Thermodynamics needs the Void/ Emptiness/ Vacuum.
2.
Maxwell electrodynamics needs the Void/ Emptiness/ Vacuum.
3.
SRT needs the Void/ Emptiness/ Vacuum.
4
GRT needs the Void/ Emptiness/ Vacuum.
5.
Atom heeds the Void/ Emptiness/ Vacuum.
6.
Outer space needs the Void/ Emptiness/ Vacuum.
7.
Religion doesn’t exist without the Void / Emptiness.
====.
The Vacuum is Source of the Universe
The Vacuum is Source of Consciousness.
The Vacuum is Fundamental Theory 0f Existence.
=========.
P.S.
When the next revolution rocks physics,
chances are it will be about nothing—the vacuum,
that endless infinite void.
http://discovermagazine.com/2008/aug/18-nothingness-of-space-theory-of-everyt...

!
The Universe is Two- Measured World.
Next to Material-Gravity World the Vacuum World exists too.
============.
Socratus.
==================================..
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