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Re: Galactic Interface Dark Surface

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$Michael J.  Strickland wrote:

> I don't favor "Dark Matter" theories and have always wondered if they
> just don't account for all the normal mass. Popularizations of the
> theories include various rookie errors like:
> 
> 1. Assuming galaxies and star clusters can be modeled like solar
> systems. They cannot be.

Why not?
 
> 2. Extrapolating the amount of dust in the solar system to the amount
> between stars.

Nobody but you did that.  The theory of dark matter, *confirmed* by 
*observation*, comes from the *observation* of *galaxies*: Of closer 
galaxies whose rotational curves we can observe (including that of our own 
galaxy, the Milky Way) and where we notice that there is not enough baryonic 
matter to explain those curves; and of galaxies behind far away clusters of 
galaxies because there has to be a lot of dark matter in the clusters to 
cause the observed gravitational lensing.

<https://youtu.be/sbsGYRArH_w?t=849>

(Lawrence M. Krauss (2014): “A Universe from Nothing”.  From 0:14:09.)

> There should be much more dust between stars than near stars.

Why?

> Out solar system is all we have directly sampled.

It is not necessary to sample matter to know that it is dark matter (see 
below).

> We (our probes) are not even 1 light year out yet.

We have astronomy, so that is irrelevant (see below).

> The nearest star is about 5 light years away.

The nearest star is Proxima Centauri, 4.25 light-years away.  If you round 
4.25 to an integer, you get _4_, not 5.

<https://en.wikipedia.org/wiki/Proxima_Centauri>

(You could not even get that highschool-level fact right.)

> Radiation pressure is stronger than gravity for all
> matter below a certain size (radius).

Which radius exactly?

> This pushes particles smaller than this limit away from stars.

Utter nonsense.

> This dust  accumulates in (squeezes around) the regions between stars.

It does not.  Apparently you are unaware of astronomical distances.  
Voyager 1 was reported to cross Sol’s heliopause in August 2012, at a 
distance of 121 AU.  That is ca. 0.002 light-years, or ca. 0.00047 times the 
distance to Proxima Centauri.

<https://en.wikipedia.org/wiki/Heliosphere#Heliopause>

> We do not know the actual distribution of radii for dust particles in the
> galaxy or the universe.

Such a nonsense, it is not even wrong.

More importantly, even dust shines, i.e. it emits electromagnetic 
radiation – even if it only reflects it; dark matter does not (hence 
“dark”).

<https://en.wikipedia.org/wiki/Dark_matter>

> Based on my guess,

An *uneducated* guess, based on your ignorance of the advances in science 
during the last 100 years; particularly in astronomy, cosmology, and 
particle physics.

> the universe contains much more total mass in these much more numerous
> small dust particles than in the larger particles up to planet and star
> sized "particles".

Ex falso quodlibet – from a false premise, anything can follow – …

> Therefore the stars (and planets now) that we can observe amount to a
> very small fraction of the mass of each galaxy and the universe.

… even things that are true.  We have *observed* (and did not need to guess) 
that your *conclusion* from your *false* premise is true: baryonic matter 
*does* account for only about 1 % of the total mass-energy of the universe 
plus ca. 4 % from photons and weakly interacting particles like neutrinos.  
The rest is dark matter (ca. 27 %) and dark energy (ca. 68 %) (the figures 
vary slightly depending on the experiment; the point here is: there is *a 
lot* more both dark matter and dark energy than there is baryonic matter).

> There is no need for any exotic "dark matter" or "dark energy" theory to
> account for this so-called "missing mass" which isn't missing in the
> first place.

There is.  You have no clue what you are talking about.

<https://en.wikipedia.org/wiki/Planck_(spacecraft)#2015_data_release>

-- 
PointedEars

Twitter: @PointedEars2
Please do not cc me. / Bitte keine Kopien per E-Mail.

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Thread

Galactic Interface Dark Surface Alan Folmsbee <omnilobe@gmail.com> - 2016-08-09 14:12 -0700
  Re: Galactic Interface Dark Surface Michael J. Strickland <michael06582@comcast.net> - 2016-08-09 19:45 -0400
    Re: Galactic Interface Dark Surface benj <benj@nobody.net> - 2016-08-09 20:23 -0400
    Re: Galactic Interface Dark Surface Alan Folmsbee <omnilobe@gmail.com> - 2016-08-09 17:39 -0700
    Re: Galactic Interface Dark Surface Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-08-10 18:54 +0200
      Arp, haltoN noTthaTguY <abu.kuanysh05@gmail.com> - 2016-08-10 11:10 -0700
        Re: Arp, haltoN Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-08-10 20:19 +0200
        Re: Arp, haltoN Michael J. Strickland <michael06582@comcast.net> - 2016-08-10 23:27 -0400
          Re: Arp, haltoN Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-08-11 06:27 +0200
            Re: Re: Arp, haltoN Michael J. Strickland <michael06582@comcast.net> - 2016-08-11 06:10 -0400
              Dark matter (was: Re: Arp, haltoN) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-08-11 18:52 +0200
                Dark matter (was: Re: Arp, haltoN) john <johnsefton288@gmail.com> - 2016-08-11 11:59 -0700
                Re: Dark matter (was: Re: Arp, haltoN) Michael J. Strickland <michael06582@comcast.net> - 2016-08-12 06:09 -0400
                Re: Dark matter Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-08-13 17:27 +0200
      Re: Galactic Interface Dark Surface Mike Duffy <mqduffy001@bell.net> - 2016-08-10 21:35 -0400
        Re: Galactic Interface Dark Surface Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-08-11 05:48 +0200
          Re: Galactic Interface Dark Surface noTthaTguY <abu.kuanysh05@gmail.com> - 2016-08-11 13:59 -0700
            Re: Galactic Interface Dark Surface Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-08-12 06:46 +0200
              a.s.c.i.i noTthaTguY <abu.kuanysh05@gmail.com> - 2016-08-12 12:35 -0700

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