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Old 10-25-2011, 10:09 AM
 
Location: Israel
165 posts, read 201,046 times
Reputation: 75

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The physical parameters of Vacuum.
1.
The Vacuum ( as a whole ) is a Homogeneous Space
between Galaxies of the lowest ( the background )
level of temperature: T= 2,7K - –--> T= 0K.
2.
The Vacuum is a Homogeneous Space of the lowest
( the background ) level of Energy: E= 0 ( according to

thermodynamics theory ) or E= ∞ (according to quantum theory)
3.
The Vacuum is a Homogeneous Space of the lowest
( the background ) level of Energy Density.

===.
WE cannot reach the temperature T=0K and we
cannot reach the energy density of Vacuum.
But just because we cannot reach these Vacuum’s
parameters it does not mean that they don’t exist.
=.
P.S.
If a tree falls in a forest and no one is around to hear it,
does it make a sound?
====.
Socratus.
[SIZE=3] [/SIZE]
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Old 10-25-2011, 12:58 PM
 
Location: Israel
165 posts, read 201,046 times
Reputation: 75
One comment
Thank you Socratus, for the plain explorable explanation .
a thought/question >>>>>
and if the perfect vacuum did exist what then?
I do not understand what we would get from a perfect vacuum.
/ darkbeaver /

My answer.
Then we have vacuum’s polarization
Vacuum polarization - Wikipedia, the free encyclopedia[
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Old 10-28-2011, 01:59 AM
 
Location: Israel
165 posts, read 201,046 times
Reputation: 75
Default The physical parameters of Vacuum.

Vacuum Energy Density, or How Can Nothing Weigh Something?
http://www.astro.ucla.edu/~wright/cosmo_constant.html


Conclusion

In the past, we have had only upper limits on the vacuum density and
philosophical arguments based on the Dicke coincidence problem and
Bayesian statistics that suggested that the most likely value
of the vacuum density was zero.

Now we have the supernova data that suggests that the vacuum energy density
is greater than zero. This result is very important if true.
We need to confirm it using other techniques, such as the WMAP satellite
which has observed the anisotropy of the cosmic microwave background
with angular resolution and sensitivity that are sufficient to measure
the vacuum energy density.
CMB data combined with the measured Hubble constant do confirm the
supernova data: there is a positive but small vacuum energy density.
http://www.astro.ucla.edu/~wright/cosmo_constant.html

My opinion.
1.
The vacuum energy density ( as whole) is absolute zero: T=0K
2.
The vacuum energy density can be greater than zero.
/ or How Can Nothing Weigh Something? /
The reason of this increasing can be ` vacuum's polarization `
==.

socratus
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Old 10-28-2011, 06:19 AM
 
Location: A blue island in the Piedmont
34,109 posts, read 83,054,663 times
Reputation: 43687
But which is the best vacuum? Or best for the price?

http://www.kenmore.com/kenmore-vacuu...uums/s-1040102

hth
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