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Earth might have hairy dark matter

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  Earth might have hairy dark matter Sam Wormley <swormley1@gmail.com> - 2015-11-23 12:51 -0600
    Re: Earth might have hairy dark matter jimp@specsol.spam.sux.com - 2015-11-23 19:06 +0000
    Re: Earth might have hairy dark matter rickman <gnuarm@gmail.com> - 2015-11-23 14:51 -0500
      Re: Earth might have hairy dark matter Sam Wormley <swormley1@gmail.com> - 2015-11-23 14:02 -0600
        Re: Earth might have hairy dark matter rickman <gnuarm@gmail.com> - 2015-11-23 16:47 -0500
        Re: Earth might have hairy dark matter "nuny@bid.nes" <Alien8752@gmail.com> - 2015-11-24 13:28 -0800
    Re: Earth might have hairy dark matter "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2015-11-23 12:56 -0800
      Re: Earth might have hairy dark matter "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2015-11-24 10:48 -0800
        Re: Earth might have hairy dark matter john <johnsefton288@gmail.com> - 2015-11-24 12:34 -0800
          Re: Earth might have hairy dark matter "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2015-11-24 12:57 -0800
        Re: Earth might have hairy dark matter "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2015-11-24 15:34 -0800
          Re: Earth might have hairy dark matter Sam Wormley <swormley1@gmail.com> - 2015-11-25 08:23 -0600
            Re: Earth might have hairy dark matter "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2015-11-25 07:40 -0800
              Re: Earth might have hairy dark matter john <johnsefton288@gmail.com> - 2015-11-25 07:51 -0800
              Re: Earth might have hairy dark matter Sam Wormley <swormley1@gmail.com> - 2015-11-25 10:35 -0600
                Re: Earth might have hairy dark matter "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2015-11-25 09:14 -0800
                Re: Earth might have hairy dark matter "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-11-27 12:49 -0800
                  Re: Earth might have hairy dark matter john <johnsefton288@gmail.com> - 2015-11-27 14:08 -0800
    Re: Earth might have hairy dark matter Double-A <double-a3@hush.com> - 2015-11-23 13:15 -0800
      Re: Earth might have hairy dark matter Sam Wormley <swormley1@gmail.com> - 2015-11-23 15:34 -0600
        Re: Earth might have hairy dark matter Double-A <double-a3@hush.com> - 2015-11-23 14:39 -0800
    Re: Earth might have hairy dark matter "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-11-23 17:10 -0800
      Re: Earth might have hairy dark matter john <johnsefton288@gmail.com> - 2015-11-24 07:35 -0800

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#534854 — Earth might have hairy dark matter

Earth might have hairy dark matter
> http://phys.org/news/2015-11-earth-hairy-dark.html


> The solar system might be a lot hairier than we thought. A new study
> publishing this week in the Astrophysical Journal by Gary Prézeau of
> NASA's Jet Propulsion Laboratory, Pasadena, California, proposes the
> existence of long filaments of dark matter, or "hairs."
>
> Dark matter is an invisible, mysterious substance that makes up about
> 27 percent of all matter and energy in the universe. The regular
> matter, which makes up everything we can see around us, is only 5
> percent of the universe. The rest is dark energy, a strange
> phenomenon associated with the acceleration of our expanding
> universe.
>
> Neither dark matter nor dark energy has ever been directly detected,
> although many experiments are trying to unlock the mysteries of dark
> matter, whether from deep underground or in space.


   One would think that "hairy dark matter" would be detectable
   in the solar system by its gravitational effects.


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community, and physics-related social issues.

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#534870

Sam Wormley <swormley1@gmail.com> wrote:
> Earth might have hairy dark matter
>> http://phys.org/news/2015-11-earth-hairy-dark.html
> 
> 
>> The solar system might be a lot hairier than we thought. A new study
>> publishing this week in the Astrophysical Journal by Gary Pr?zeau of
>> NASA's Jet Propulsion Laboratory, Pasadena, California, proposes the
>> existence of long filaments of dark matter, or "hairs."
>>
>> Dark matter is an invisible, mysterious substance that makes up about
>> 27 percent of all matter and energy in the universe. The regular
>> matter, which makes up everything we can see around us, is only 5
>> percent of the universe. The rest is dark energy, a strange
>> phenomenon associated with the acceleration of our expanding
>> universe.
>>
>> Neither dark matter nor dark energy has ever been directly detected,
>> although many experiments are trying to unlock the mysteries of dark
>> matter, whether from deep underground or in space.
> 
> 
>   One would think that "hairy dark matter" would be detectable
>   in the solar system by its gravitational effects.
 
Japan has hairy Ainu.
 

-- 
Jim Pennino

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#534877

On 11/23/2015 1:51 PM, Sam Wormley wrote:
> Earth might have hairy dark matter
>> http://phys.org/news/2015-11-earth-hairy-dark.html
>
>
>> The solar system might be a lot hairier than we thought. A new study
>> publishing this week in the Astrophysical Journal by Gary Prézeau of
>> NASA's Jet Propulsion Laboratory, Pasadena, California, proposes the
>> existence of long filaments of dark matter, or "hairs."
>>
>> Dark matter is an invisible, mysterious substance that makes up about
>> 27 percent of all matter and energy in the universe. The regular
>> matter, which makes up everything we can see around us, is only 5
>> percent of the universe. The rest is dark energy, a strange
>> phenomenon associated with the acceleration of our expanding
>> universe.
>>
>> Neither dark matter nor dark energy has ever been directly detected,
>> although many experiments are trying to unlock the mysteries of dark
>> matter, whether from deep underground or in space.
>
>
>    One would think that "hairy dark matter" would be detectable
>    in the solar system by its gravitational effects.

That would only be true if the dark matter were present in sufficient 
amounts.  While it is expected to be a large proportion of the total 
matter in the universe, the universe is mostly empty of matter and if 
the dark matter is spread out the average amount would be very small 
compared to the local matter in the solar system.

-- 

Rick

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#534880

On 11/23/15 1:51 PM, rickman wrote:
> On 11/23/2015 1:51 PM, Sam Wormley wrote:
>> Earth might have hairy dark matter
>>> http://phys.org/news/2015-11-earth-hairy-dark.html
>>
>>
>>> The solar system might be a lot hairier than we thought. A new study
>>> publishing this week in the Astrophysical Journal by Gary Prézeau of
>>> NASA's Jet Propulsion Laboratory, Pasadena, California, proposes the
>>> existence of long filaments of dark matter, or "hairs."
>>>
>>> Dark matter is an invisible, mysterious substance that makes up about
>>> 27 percent of all matter and energy in the universe. The regular
>>> matter, which makes up everything we can see around us, is only 5
>>> percent of the universe. The rest is dark energy, a strange
>>> phenomenon associated with the acceleration of our expanding
>>> universe.
>>>
>>> Neither dark matter nor dark energy has ever been directly detected,
>>> although many experiments are trying to unlock the mysteries of dark
>>> matter, whether from deep underground or in space.
>>
>>
>>    One would think that "hairy dark matter" would be detectable
>>    in the solar system by its gravitational effects.
>
> That would only be true if the dark matter were present in sufficient
> amounts.  While it is expected to be a large proportion of the total
> matter in the universe, the universe is mostly empty of matter and if
> the dark matter is spread out the average amount would be very small
> compared to the local matter in the solar system.
>

   Good Point -- Also if Dark Matter cannot clump on small scales, how
   could it possible form the hairy structures?



-- 

sci.physics is an unmoderated newsgroup dedicated
to the discussion of physics, news from the physics
community, and physics-related social issues.

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#534909

On 11/23/2015 3:02 PM, Sam Wormley wrote:
> On 11/23/15 1:51 PM, rickman wrote:
>> On 11/23/2015 1:51 PM, Sam Wormley wrote:
>>> Earth might have hairy dark matter
>>>> http://phys.org/news/2015-11-earth-hairy-dark.html
>>>
>>>
>>>> The solar system might be a lot hairier than we thought. A new study
>>>> publishing this week in the Astrophysical Journal by Gary Prézeau of
>>>> NASA's Jet Propulsion Laboratory, Pasadena, California, proposes the
>>>> existence of long filaments of dark matter, or "hairs."
>>>>
>>>> Dark matter is an invisible, mysterious substance that makes up about
>>>> 27 percent of all matter and energy in the universe. The regular
>>>> matter, which makes up everything we can see around us, is only 5
>>>> percent of the universe. The rest is dark energy, a strange
>>>> phenomenon associated with the acceleration of our expanding
>>>> universe.
>>>>
>>>> Neither dark matter nor dark energy has ever been directly detected,
>>>> although many experiments are trying to unlock the mysteries of dark
>>>> matter, whether from deep underground or in space.
>>>
>>>
>>>    One would think that "hairy dark matter" would be detectable
>>>    in the solar system by its gravitational effects.
>>
>> That would only be true if the dark matter were present in sufficient
>> amounts.  While it is expected to be a large proportion of the total
>> matter in the universe, the universe is mostly empty of matter and if
>> the dark matter is spread out the average amount would be very small
>> compared to the local matter in the solar system.
>>
>
>    Good Point -- Also if Dark Matter cannot clump on small scales, how
>    could it possible form the hairy structures?

The two are not mutually exclusive.

-- 

Rick

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#535189

On Monday, November 23, 2015 at 12:02:08 PM UTC-8, Sam Wormley wrote:
> On 11/23/15 1:51 PM, rickman wrote:
> > On 11/23/2015 1:51 PM, Sam Wormley wrote:
> >> Earth might have hairy dark matter
> >>> http://phys.org/news/2015-11-earth-hairy-dark.html
> >>
> >>
> >>> The solar system might be a lot hairier than we thought. A new study
> >>> publishing this week in the Astrophysical Journal by Gary Prézeau of
> >>> NASA's Jet Propulsion Laboratory, Pasadena, California, proposes the
> >>> existence of long filaments of dark matter, or "hairs."
> >>>
> >>> Dark matter is an invisible, mysterious substance that makes up about
> >>> 27 percent of all matter and energy in the universe. The regular
> >>> matter, which makes up everything we can see around us, is only 5
> >>> percent of the universe. The rest is dark energy, a strange
> >>> phenomenon associated with the acceleration of our expanding
> >>> universe.
> >>>
> >>> Neither dark matter nor dark energy has ever been directly detected,
> >>> although many experiments are trying to unlock the mysteries of dark
> >>> matter, whether from deep underground or in space.
> >>
> >>    One would think that "hairy dark matter" would be detectable
> >>    in the solar system by its gravitational effects.
> >
> > That would only be true if the dark matter were present in sufficient
> > amounts.  While it is expected to be a large proportion of the total
> > matter in the universe, the universe is mostly empty of matter and if
> > the dark matter is spread out the average amount would be very small
> > compared to the local matter in the solar system.
> 
>    Good Point -- Also if Dark Matter cannot clump on small scales, how
>    could it possible form the hairy structures?

  The streams that supposedly feed the hairs seem slightly handwaved:

  'According to calculations done in the 1990s and simulations performed in the last decade, dark matter forms "fine-grained streams" of particles that move at the same velocity and orbit galaxies such as ours.'

  Who did the calculations and simulations? Where did they publish? Has it been replicated?

  Anyway, assuming the large-scale streams do indeed form as claimed and are focused my massive bodies, then the proposed hairs are caustics, and the roots are cusp singularities:

https://en.wikipedia.org/wiki/Caustic_%28optics%29

https://en.wikipedia.org/wiki/Cusp_%28singularity%29

  They're not "clumps" exactly; the DM particles in the root and hair are all in motion, it's just that their motion has been focused. Once they leave a planet's gravitational influence there's nothing holding them together except their own (extremely feeble) mutual gravitation. The farther away they get, the more they'll spread out so DM hairs will be frizzy, not pointy.

  The roots/hairs will form, move around, and dissipate rather like the streamers in a plasma globe do (though the physics are entirely different) as the massive bodies move into, through, and out of the streams.

  Also, the illustrations are misleading; a planet could only have hairs pointing in all directions if streams pass through it from all the opposite directions. More likely is one stream at a time when the stream is bigger than the Solar System, and one hair/root at a time.

  Hence, the Sun and every massive body in the System will have one hair/root each, and all will point in the same direction (the direction the parent stream is, er, streaming). Figuring out which direction would require looking for very subtle orbital perturbations of asteroids and moons and such- the sources will look like long, thin, not-very-dense cylinders. This will be hampered by the fact that streams are not necessarily going to pass through the Solar System's plane, so there won't be very many test bodies to look at in the affected volume. Also, note that a cylindrical hairs' gravitational field falls off as 1/r, not 1/rsquared.


  Mark L. Fergerson

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#534896

On Monday, November 23, 2015 at 10:51:08 AM UTC-8, Sam Wormley wrote:
> Earth might have hairy dark matter
> > http://phys.org/news/2015-11-earth-hairy-dark.html
> 
> 
> > The solar system might be a lot hairier than we thought. A new study
> > publishing this week in the Astrophysical Journal by Gary Prézeau of
> > NASA's Jet Propulsion Laboratory, Pasadena, California, proposes the
> > existence of long filaments of dark matter, or "hairs."
> >
> > Dark matter is an invisible, mysterious substance that makes up about
> > 27 percent of all matter and energy in the universe. The regular
> > matter, which makes up everything we can see around us, is only 5
> > percent of the universe. The rest is dark energy, a strange
> > phenomenon associated with the acceleration of our expanding
> > universe.
> >
> > Neither dark matter nor dark energy has ever been directly detected,
> > although many experiments are trying to unlock the mysteries of dark
> > matter, whether from deep underground or in space.
> 
> 
>    One would think that "hairy dark matter" would be detectable
>    in the solar system by its gravitational effects.
> 
> 
> -- 
> 
> sci.physics is an unmoderated newsgroup dedicated
> to the discussion of physics, news from the physics
> community, and physics-related social issues.

"Based on many observations of its 
gravitational pull in action, 
scientists are certain that dark matter 
exists, [...]"

That doesn't seem correct at all.  What is even 
_one_ example of this "missing matter" having 
real gravitational effect, and not just falling 
out as missing?  That is, where is actually a 
_change_ and not just _wrong estimate_.

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#535096

On Monday, November 23, 2015 at 12:56:25 PM UTC-8, Ross A. Finlayson wrote:
> On Monday, November 23, 2015 at 10:51:08 AM UTC-8, Sam Wormley wrote:
> > Earth might have hairy dark matter
> > > http://phys.org/news/2015-11-earth-hairy-dark.html
> > 
> > 
> > > The solar system might be a lot hairier than we thought. A new study
> > > publishing this week in the Astrophysical Journal by Gary Prézeau of
> > > NASA's Jet Propulsion Laboratory, Pasadena, California, proposes the
> > > existence of long filaments of dark matter, or "hairs."
> > >
> > > Dark matter is an invisible, mysterious substance that makes up about
> > > 27 percent of all matter and energy in the universe. The regular
> > > matter, which makes up everything we can see around us, is only 5
> > > percent of the universe. The rest is dark energy, a strange
> > > phenomenon associated with the acceleration of our expanding
> > > universe.
> > >
> > > Neither dark matter nor dark energy has ever been directly detected,
> > > although many experiments are trying to unlock the mysteries of dark
> > > matter, whether from deep underground or in space.
> > 
> > 
> >    One would think that "hairy dark matter" would be detectable
> >    in the solar system by its gravitational effects.
> > 
> > 
> > -- 
> > 
> > sci.physics is an unmoderated newsgroup dedicated
> > to the discussion of physics, news from the physics
> > community, and physics-related social issues.
> 
> "Based on many observations of its 
> gravitational pull in action, 
> scientists are certain that dark matter 
> exists, [...]"
> 
> That doesn't seem correct at all.  What is even 
> _one_ example of this "missing matter" having 
> real gravitational effect, and not just falling 
> out as missing?  That is, where is actually a 
> _change_ and not just _wrong estimate_.

Off by 10^120 is _all the way off_.

This is the second article I've seen 
where someone was saying there were 
effects (local) of dark matter, but 
that's wrong, someone here please 
point me to some "direct" result that 
"dark matter" isn't only for accounting 
in "effects(global)", effects of the 
measurement and observer effect in the 
global, not "matter not following laws 
of matter".

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#535170

The structure of galactic space is
filaments.
The structure of DM space will be
similar if DM is a fractal of galaxies

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#535177

On Tuesday, November 24, 2015 at 12:34:43 PM UTC-8, john wrote:
> The structure of galactic space is
> filaments.
> The structure of DM space will be
> similar if DM is a fractal of galaxies

Wow, that's almost "Archimedes Plutonium"'s
"Universe is one giant Plutonian atom".

Excuse me, that's kind of funny, self-similar 
organization is not so much fractal as that 
would be fractal at every perspective, here 
that there are similarities in field effects 
so the hydrogen atom looks like a solar body 
with a planet, but, that is where it begins 
and ends.

A filament might simply be a direct path but 
again that's like talking about standing waves 
as virtual particles, they're not.

Frame-dragging and what or the cohesion of the 
systems under rotation (frame traction, frame 
friction) that's something else, for a wide 
variety of effects under rotation of frame, 
again that's configuration and energy of 
experiment (or conditions), not "missing 
matter and now energy that don't add up and 
we don't know so you should feel bad".

Excuse me, yes there are repetitions of 
organization or configuration at scales 
due that there are usually organizing 
forces with similar terms, eg, inverse 
square and through area, etcetera.

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#535244

On Tuesday, November 24, 2015 at 10:48:20 AM UTC-8, Ross A. Finlayson wrote:
> On Monday, November 23, 2015 at 12:56:25 PM UTC-8, Ross A. Finlayson wrote:
> > On Monday, November 23, 2015 at 10:51:08 AM UTC-8, Sam Wormley wrote:
> > > Earth might have hairy dark matter
> > > > http://phys.org/news/2015-11-earth-hairy-dark.html
> > > 
> > > 
> > > > The solar system might be a lot hairier than we thought. A new study
> > > > publishing this week in the Astrophysical Journal by Gary Prézeau of
> > > > NASA's Jet Propulsion Laboratory, Pasadena, California, proposes the
> > > > existence of long filaments of dark matter, or "hairs."
> > > >
> > > > Dark matter is an invisible, mysterious substance that makes up about
> > > > 27 percent of all matter and energy in the universe. The regular
> > > > matter, which makes up everything we can see around us, is only 5
> > > > percent of the universe. The rest is dark energy, a strange
> > > > phenomenon associated with the acceleration of our expanding
> > > > universe.
> > > >
> > > > Neither dark matter nor dark energy has ever been directly detected,
> > > > although many experiments are trying to unlock the mysteries of dark
> > > > matter, whether from deep underground or in space.
> > > 
> > > 
> > >    One would think that "hairy dark matter" would be detectable
> > >    in the solar system by its gravitational effects.
> > > 
> > > 
> > > -- 
> > > 
> > > sci.physics is an unmoderated newsgroup dedicated
> > > to the discussion of physics, news from the physics
> > > community, and physics-related social issues.
> > 
> > "Based on many observations of its 
> > gravitational pull in action, 
> > scientists are certain that dark matter 
> > exists, [...]"
> > 
> > That doesn't seem correct at all.  What is even 
> > _one_ example of this "missing matter" having 
> > real gravitational effect, and not just falling 
> > out as missing?  That is, where is actually a 
> > _change_ and not just _wrong estimate_.
> 
> Off by 10^120 is _all the way off_.
> 
> This is the second article I've seen 
> where someone was saying there were 
> effects (local) of dark matter, but 
> that's wrong, someone here please 
> point me to some "direct" result that 
> "dark matter" isn't only for accounting 
> in "effects(global)", effects of the 
> measurement and observer effect in the 
> global, not "matter not following laws 
> of matter".



"His analysis finds ...."

BZZZT Science Error:  Game over
(Science wins.)

""When gravity interacts with the cold 
dark matter gas during galaxy formation, 
all particles within a stream continue 
traveling at the same velocity," said 
Prézeau, in the NASA statement.

Using computer simulations Prézeau studied 
what happens when dark matter particle "streams" 
approach Earth. "His analysis finds that when a 
dark matter stream goes through a planet, the 
stream particles focus into an ultra-dense 
filament, or 'hair,' of dark matter," explained 
NASA. "In fact, there should be many such hairs 
sprouting from Earth."

That entire thing "sprouts" from a measurement error, 
and is according to some theories headed directly 
for the round-file.

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#535338

On 11/24/15 5:34 PM, Ross A. Finlayson wrote:
> That entire thing "sprouts" from a measurement error,
> and is according to some theories headed directly
> for the round-file.


   There was no measurement, Ross.

   Earth might have hairy dark matter
 > http://phys.org/news/2015-11-earth-hairy-dark.html

 > The solar system might be a lot hairier than we thought. A new study
 > publishing this week in the Astrophysical Journal by Gary Prézeau of
 > NASA's Jet Propulsion Laboratory, Pasadena, California, proposes the
 > existence of long filaments of dark matter, or "hairs."
 >
 > Dark matter is an invisible, mysterious substance that makes up about
 > 27 percent of all matter and energy in the universe. The regular
 > matter, which makes up everything we can see around us, is only 5
 > percent of the universe. The rest is dark energy, a strange
 > phenomenon associated with the acceleration of our expanding
 > universe.
 >
 > Neither dark matter nor dark energy has ever been directly detected,
 > although many experiments are trying to unlock the mysteries of dark
 > matter, whether from deep underground or in space.




-- 

sci.physics is an unmoderated newsgroup dedicated
to the discussion of physics, news from the physics
community, and physics-related social issues.

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#535349

On Wednesday, November 25, 2015 at 6:23:26 AM UTC-8, Sam Wormley wrote:
> On 11/24/15 5:34 PM, Ross A. Finlayson wrote:
> > That entire thing "sprouts" from a measurement error,
> > and is according to some theories headed directly
> > for the round-file.
> 
> 
>    There was no measurement, Ross.
> 
>    Earth might have hairy dark matter
>  > http://phys.org/news/2015-11-earth-hairy-dark.html
> 
>  > The solar system might be a lot hairier than we thought. A new study
>  > publishing this week in the Astrophysical Journal by Gary Prézeau of
>  > NASA's Jet Propulsion Laboratory, Pasadena, California, proposes the
>  > existence of long filaments of dark matter, or "hairs."
>  >
>  > Dark matter is an invisible, mysterious substance that makes up about
>  > 27 percent of all matter and energy in the universe. The regular
>  > matter, which makes up everything we can see around us, is only 5
>  > percent of the universe. The rest is dark energy, a strange
>  > phenomenon associated with the acceleration of our expanding
>  > universe.
>  >
>  > Neither dark matter nor dark energy has ever been directly detected,
>  > although many experiments are trying to unlock the mysteries of dark
>  > matter, whether from deep underground or in space.
> 
> 

The error has been since whoever figured 
there was "dark matter", that was the 
measurement error, that didn't take into 
account its own measurement effect (or 
understand the effects of configuration 
of experiment that the matter kept going 
on missing).

Then the "scientists" since then haven't 
been primary enough and keep supping their 
dark soup instead of their galaxy alphabets.

You can excuse me, that is somewhat damning 
of the industry.  But, as earlier this month, 
it doesn't make it a lot easier to round-file 
such knee-jerk extensions of such "basic" research.

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#535353

The problem since forever is "suck
Gravity", which predicates the most
exotic radiation ever- one given
off in infinite amounts while leaving
the emitting body completely
unchanged and imbuing an acceleration 
in the opposite direction to its 
direction of travel!!
Wow!! Talk about messed-up!

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#535366

On 11/25/15 9:40 AM, Ross A. Finlayson wrote:
> The error has been since whoever figured there was "dark matter",
> that was the measurement error, that didn't take into account its own
> measurement effect (or understand the effects of configuration of
> experiment that the matter kept going on missing).

   I take it you are not up on the observations (spanning)
   70 years indicating the presence of dark matter in galaxies,
   clusters of galaxies and gravitational lensing.

   DuckDuckGo is your friend.





-- 

sci.physics is an unmoderated newsgroup dedicated
to the discussion of physics, news from the physics
community, and physics-related social issues.

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#535385

On Wednesday, November 25, 2015 at 8:36:02 AM UTC-8, Sam Wormley wrote:
> On 11/25/15 9:40 AM, Ross A. Finlayson wrote:
> > The error has been since whoever figured there was "dark matter",
> > that was the measurement error, that didn't take into account its own
> > measurement effect (or understand the effects of configuration of
> > experiment that the matter kept going on missing).
> 
>    I take it you are not up on the observations (spanning)
>    70 years indicating the presence of dark matter in galaxies,
>    clusters of galaxies and gravitational lensing.
> 
>    DuckDuckGo is your friend.
> 
> 


For example:

http://scitechdaily.com/astronomers-measure-the-density-of-dark-matter-in-galaxy-clusters/

They haven't _found_ dark matter, 
no, it's just all this "missing" matter.

Notice they have ~85% "missing matter", 
vis a vis other configurations of experiment.

"Okabe and Smith suspected that if 
they used a large number of clusters 
to measure the average concentration 
parameter, then they might get a 
different result. 'We didn't know what 
we would find', comments Okabe, 'we 
were curious what we would find, if 
we took a different approach.'"


Notice how this is again explained 
quite well as neatly (if not as exactly 
and most agreeably not yet as precisely) 
via a measurement effect here of the 
pan- and poly-dimensional of the 
configuration of experiment.


Notice the different configurations 
of experiment get different results!

That is not repeatible falsifiability!


From the article:

"The team combined observations of 50 of the 
most massive known galaxy clusters into a 
single measurement of the average concentration 
parameter of massive galaxy clusters. They found 
that the concentration parameter, that describes 
how density changes from the center to the 
outskirts of clusters, matches the CDM theory (Figure).

In the past, astronomers have studied small 
handfuls of clusters, finding that they generally 
have large concentration parameters, suggesting 
possible problems with CDM theory. Okabe and Smith 
suspected that if they used a large number of clusters 
to measure the average concentration parameter, then 
they might get a different result. 'We didn't know 
what we would find', comments Okabe, 'we were curious 
what we would find, if we took a different approach.'"

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#535959

On Wednesday, November 25, 2015 at 8:36:02 AM UTC-8, Sam Wormley wrote:
> On 11/25/15 9:40 AM, Ross A. Finlayson wrote:
> > The error has been since whoever figured there was "dark matter",
> > that was the measurement error, that didn't take into account its own
> > measurement effect (or understand the effects of configuration of
> > experiment that the matter kept going on missing).
> 
>    I take it you are not up on the observations (spanning)
>    70 years indicating the presence of dark matter in galaxies,
>    clusters of galaxies and gravitational lensing.
> 
>    DuckDuckGo is your friend.
> 
> 
> 
> 
> 
> -- 
> 
> sci.physics is an unmoderated newsgroup dedicated
> to the discussion of physics, news from the physics
> community, and physics-related social issues.

Dark matter relates to finding the source of gravity.I'm working on it night and day.It tickles me.TreBert

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#535980

A computer program 

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#534899

On Monday, November 23, 2015 at 10:51:08 AM UTC-8, Sam Wormley wrote:
> Earth might have hairy dark matter
> > http://phys.org/news/2015-11-earth-hairy-dark.html
> 
> 
> > The solar system might be a lot hairier than we thought. A new study
> > publishing this week in the Astrophysical Journal by Gary Prézeau of
> > NASA's Jet Propulsion Laboratory, Pasadena, California, proposes the
> > existence of long filaments of dark matter, or "hairs."
> >
> > Dark matter is an invisible, mysterious substance that makes up about
> > 27 percent of all matter and energy in the universe. The regular
> > matter, which makes up everything we can see around us, is only 5
> > percent of the universe. The rest is dark energy, a strange
> > phenomenon associated with the acceleration of our expanding
> > universe.
> >
> > Neither dark matter nor dark energy has ever been directly detected,
> > although many experiments are trying to unlock the mysteries of dark
> > matter, whether from deep underground or in space.
> 
> 
>    One would think that "hairy dark matter" would be detectable
>    in the solar system by its gravitational effects.


Since we are entertaining wild speculation, maybe these dark matter hairs are the strands that hold the planets in their orbits!

Double-A

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#534903

On 11/23/15 3:15 PM, Double-A wrote:
> On Monday, November 23, 2015 at 10:51:08 AM UTC-8, Sam Wormley wrote:
>> Earth might have hairy dark matter
>>> http://phys.org/news/2015-11-earth-hairy-dark.html
>>
>>
>>> The solar system might be a lot hairier than we thought. A new study
>>> publishing this week in the Astrophysical Journal by Gary Prézeau of
>>> NASA's Jet Propulsion Laboratory, Pasadena, California, proposes the
>>> existence of long filaments of dark matter, or "hairs."
>>>
>>> Dark matter is an invisible, mysterious substance that makes up about
>>> 27 percent of all matter and energy in the universe. The regular
>>> matter, which makes up everything we can see around us, is only 5
>>> percent of the universe. The rest is dark energy, a strange
>>> phenomenon associated with the acceleration of our expanding
>>> universe.
>>>
>>> Neither dark matter nor dark energy has ever been directly detected,
>>> although many experiments are trying to unlock the mysteries of dark
>>> matter, whether from deep underground or in space.
>>
>>
>>     One would think that "hairy dark matter" would be detectable
>>     in the solar system by its gravitational effects.
>
>
> Since we are entertaining wild speculation, maybe these dark matter hairs are the strands that hold the planets in their orbits!
>
> Double-A
>


   What about the moon and earth satellites?

-- 

sci.physics is an unmoderated newsgroup dedicated
to the discussion of physics, news from the physics
community, and physics-related social issues.

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