Continuation The Electric Comet Theory Boogaloo (Part 2)

[Reality Check]

So far so good, unlike the sublimating "Dark Ice or super volatiles" that's exceptionally good at hiding!

So bad, Sol88, a delusion and probably a lie !
A new delusion about ""Dark Ice or super volatiles".
The repeat of a lie about no ices being detected? We have detected millions of tons of ices, e.g. Deep Impact, density measurements, etc.

The parroting of the Thunderbolt cult ignorance, delusions and lies in this thread alone (continuation of a thread that is now 6 years of delusions from Sol88 and Haig!).
10th April 2015: The ignorance, delusions and lies in the Thunderbolts web site, videos, etc. mostly cited by Haig.
253 days and counting of fear of doing basic physics: 25 June 2015 Sol88: Use a impact calculator to calculate the size of the crater on a comet made of rock by the Deep Impact impactor.

 

[Reality Check]

Sure there is...for any rational non deluded able to read between the lines have half a brain to work stuff out for themselves type rational homo sapien.

Are you are admitting yet again that you are not a rational non-deluded person not able to think for themselves with this mindless parroting yet again of the irrational, deluded Thunderbolts cult, Sol88 ?

But this is your own irrational, mindless delusion not cult dogma.
Surface charging and electrostatic dust acceleration at the nucleus of comet 67P during periods of low activity is about electrostatics at the surface of 67P during low activity.
You cite yet again the electrochemical fantasies of Franklin Anariba which does not cite or have anything to do with the paper.

 

[Reality Check]

like this nonsense

Delusions of nonsense, Sol88.
That is a quote from a paper stating facts about what was detected by Rosetta with a rational attribution !
Negatively charged nano-grains at 67P/Churyumov-Gerasimenko

1. The ion and electron sensor (IES) detected nanograins with nearly monoenergetic beams in the 200 to 500 eV range.
2. These nanograins, which authors attribute to water nano-grains 3 to 4 nm in diameter, were negative-charged and were traveling away from the nucleus of the comet in the sun-ward direction.
3. Moreover, no signal for positive-charged nanograins was detected by the sensor.

 

[Reality Check]

So electric all the way?

Read what tusenfem actually wrote: So ignorance about physics written by Anariba.
tusenfem missed out that Anariba was stupid enough to write this ignorance in the blog of an irrational, deluded cult.

 

[jonesdave116]

Has to be asked: how thick do you need to be to still believe this rubbish after this amount of time? Really does.
Perhaps the Electric Comet cretins could start laying out their evidence. Like right now.
Not going to happen, as we all know. Just the usual b*ll*cks, no evidence (as usual). Maybe they could actually quote someone (other than a complete tosser) within their ranks who actually has studied and understands planetary science? Not going to happen, either.
I just feel sorry for the cretins that have been duped by this rubbish.

 

[tusenfem]

Although I don't really want to bump this thread, but ...
here is Charlotte's paper on the diamagnetic cavity, open access for this month.

 

[Sol88]

from thre first link, dranariba writes
"In this model [mainstrea model, 1005], the solar wind-associated interplanetary magnetic field (IMF) interacts with comet’s coma, creating a bow shock due to the pile up of magnetic fields on the sunward direction of the comet. "
again dranariba snows he has no clue, thisxdoes not a bow shock create, a bow schock is created by an obstacle in the flow and its presence being communicated upstream by (fast) waves. depnding on the size and caracteristics of the object this can form a bow shock at which the flow is slowed from super- to subsonic velocities.
it has nothing to do with the magnetic field piling up in front of the nucleus, that is determined by the outgassing and ionization rate.
dranariba should first read up on basics before writing nonsense

snippped

Bow shocks form the boundary between a magnetosphere and an ambient magnetized medium. This occurs when the magnetic field of an astrophysical object interacts with the nearby flowing ambient plasma. For example, when the solar wind, flowing with a relative speed of order 400 km/s, encounters the magnetic field of Earth, a bow shape boundary forms. For Earth and other magnetized planets, it is the boundary at which the speed of the stellar wind abruptly drops as a result of its approach to the magnetopause. For stars, this boundary is typically the edge of the astrosphere, where the stellar wind meets the interstellar medium.[1]

So Dr Anariba does not know what he is talking about then??

Watching the birth of a comet magnetosphere

The RPC-ICA instrument onboard Rosetta has been watching the early stages of how a magnetosphere forms around Comet 67P Churyumov-Gerasimenko as it moves closer to the Sun along its orbit and begins to interact with the solar wind.

 

[tusenfem]

So Dr Anariba does not know what he is talking about then??

No, because it is not the magentic fields interacting! It is a purely hydrodynamic phenomenon. Bow shocks do not need magnetic fields, otherwise you would never get the sonic boom of a jet plane passing over your house.

It also happens for non-magnetized planets, so that wiki quote is very incorrectly written up.

Watching the birth of a comet magnetosphere

No idea what this quote is supposed to mean.

 

[Reality Check]

So Dr Anariba does not know what he is talking about then??

That is correct Sol88. Dr Anariba has no idea what a bow shock in astrophysics is !
One minute of research would tell you this: Bow shocks in astrophysics. The presence of a magnetic field is optional (and a complication). For a comet it looks like the bow shock would be the interaction between the comet's magnetosphere and the solar wind.
Where Dr Anariba really becomes ignorant is when he fantasizes about electrochemistry on comets.

 

[Sol88]

No, because it is not the magentic fields interacting! It is a purely hydrodynamic phenomenon. Bow shocks do not need magnetic fields, otherwise you would never get the sonic boom of a jet plane passing over your house.

It also happens for non-magnetized planets, so that wiki quote is very incorrectly written up.



No idea what this quote is supposed to mean.

Bow shocks!!!

Are you saying Tusenfem that "space" is DENSE enough to produce a "bow shock" much like a sonic boom????

Didn't think so, so it's a moot point

 

[Sol88]

No, because it is not the magentic fields interacting! It is a purely hydrodynamic phenomenon. Bow shocks do not need magnetic fields, otherwise you would never get the sonic boom of a jet plane passing over your house.

It also happens for non-magnetized planets, so that wiki quote is very incorrectly written up.



No idea what this quote is supposed to mean.

Rosetta finds magnetic field-free bubble at comet

The most likely explanation seems to lie, instead, in the dynamical nature of the cavity boundary.

Boundaries between plasma regions with different properties are often unstable, and small oscillations can arise in the pile-up region of the solar wind, where it encounters the magnetic field-free region, on the Sun-facing side of the comet. If these oscillations propagate and get amplified along the boundary, in the direction opposite the Sun, they could easily cause the cavity to grow in size.

Such a moving instability would also explain why the measurements of magnetic field-free regions are sporadic and mainly span several minutes, with the 26 July one lasting 25 minutes and the longest one, recorded in November, about 40 minutes. The short duration of the detections is not a result of Rosetta crossing the cavity – the spacecraft moves much too slowly with respect to the comet – but of the magnetic field-free regions repeatedly passing through the spacecraft.

Ummm......Double layer (plasma)

Current-free double layers These occur at the boundary between plasma regions with different plasma properties. A plasma may have a higher electron temperature, and thermal velocity, on one side of a boundary layer than on the other. The same may apply for plasma densities. Charged particles exchanged between the regions may enable potential differences to be maintained between them locally. The overall charge density, as in all double layers, will be neutral.

So well done Rosetta you've CONFIRMED the existence of a cometary double layer/s!

 

[tusenfem]

Rosetta finds magnetic field-free bubble at comet

Ummm......Double layer (plasma)


So well done Rosetta you've CONFIRMED the existence of a cometary double layer/s!

If plasma physics were only that simple ...
It says they occur on the boundary of two plasmas, which is true, such a boundary is necessary for the DLs, however that does not mean that these DLs occur on every boundary.

 

[tusenfem]

Bow shocks!!!

Are you saying Tusenfem that "space" is DENSE enough to produce a "bow shock" much like a sonic boom????

Didn't think so, so it's a moot point

Well I would not expect you to think so, as you don't have any clear knowledge about (plasma)phyiscs.

The solar wind is slowed down from super-sonic to sub-sonic around any large object it is flowing towards. It has little to do with density.

 

[jonesdave116]

Well I would not expect you to think so, as you don't have any clear knowledge about (plasma)phyiscs.

The solar wind is slowed down from super-sonic to sub-sonic around any large object it is flowing towards. It has little to do with density.

Slightly related; Tus, you have got to reply to this idiot: http://blogs.esa.int/rosetta/2016/0...ic-field-free-bubble-at-comet/#comment-599395

Or maybe Charlotte will. Jeez.

 

[tusenfem]

Slightly related; Tus, you have got to reply to this idiot: http://blogs.esa.int/rosetta/2016/0...ic-field-free-bubble-at-comet/#comment-599395

Or maybe Charlotte will. Jeez.

Just read it, he has shown before to have little idea about what is going on around a comet, nor about the solar wind.

But am now at a Rosette conference, I have no time to go into a full reply.

 

[jonesdave116]

Just read it, he has shown before to have little idea about what is going on around a comet, nor about the solar wind.

But am now at a Rosette conference, I have no time to go into a full reply.

Ah yes, ESLAB. I'm following it on Twitter. Some interesting stuff by the looks of it.
My, my. The jet setting lifestyle of a plasma astrophysicist! One week Myanmar, the next week Holland! Mind you, with an itinerary like that, I imagine that customs are warming up the rubber gloves at your next port of call!

 

[jonesdave116]

So well done Rosetta you've CONFIRMED the existence of a cometary double layer/s!

I'll leave that for the experts to deal with. However, one should not forget that whatever they are seeing will have been seen regardless of whether or not there is a comet in the centre of this gas. Make the comet vanish, but keep the gas (and somehow keep it supplied) and the same processes will occur.
I refer, of course, to the AMPTE artificial comet experiments in 1984-85. Quite a bit of free stuff knocking around, both on normal Google as well as Scholar.

 

[jonesdave116]

Bow shocks!!!

Are you saying Tusenfem that "space" is DENSE enough to produce a "bow shock" much like a sonic boom????

Didn't think so, so it's a moot point

This is a good paper to explain the bow shock: http://www.sciencedirect.com/science/article/pii/027311779400125K
Paywalled, but that shouldn't be a problem.

 

[Reality Check]

Rosetta finds magnetic field-free bubble at comet

Ummm......Double layer (plasma)

Ummm......The Thunderbolts cult delusion that anything they can imagine to happen, actually happens pops up from you Sol88 !
As tusenfem states - adjacent plasmas with different properties is just one of the conditions for a current-free double layer to exist.

The parroting of the Thunderbolt cult ignorance, delusions and lies in this thread alone (continuation of a thread that is now 6 years of delusions from Sol88 and Haig!).
10th April 2015: The ignorance, delusions and lies in the Thunderbolts web site, videos, etc. mostly cited by Haig.
269 days and counting of fear of doing basic physics: 25 June 2015 Sol88: Use a impact calculator to calculate the size of the crater on a comet made of rock by the Deep Impact impactor.

 

[Reality Check]

Are you saying Tusenfem that "space" is DENSE enough to produce a "bow shock" much like a sonic boom????

We are saying that you and Dr Anariba have no idea what a bow shock in astrophysics is, Sol88.
Here is a possible learning moment for you: Bow shocks in astrophysics

Bow shocks form the boundary between a magnetosphere and an ambient magnetized medium. This occurs when the magnetic field of an astrophysical object interacts with the nearby flowing ambient plasma. For example, when the solar wind, flowing with a relative speed of order 400 km/s, encounters the magnetic field of Earth, a bow shape boundary forms. For Earth and other magnetized planets, it is the boundary at which the speed of the stellar wind abruptly drops as a result of its approach to the magnetopause. For stars, this boundary is typically the edge of the astrosphere, where the stellar wind meets the interstellar medium.[1]