Continuation The Electric Comet Theory Boogaloo (Part 2)

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Sol88 said:
Didn't say it was!

Fine structure of the diamagnetic cavity boundary in comet Halley

In your expert opinion, could a diamagnetic cavity boundary layer (DCBL) also be called a double layer?

Seems they also be called BOUNDARY LAYERS!!
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I don't think you are understanding this.
The parallel currents are flowing along the boundary and along the magnetic field lines.
The thickness of the boundary is on the order of the ion gyro radius, which means it cannot be a DL, which has a typical thickness of tens of Debye lengths.
Not every charge separation is a double layer.

And, assuming it was a double layer, then what? What is that supposed to tell us? Are you going to claim that thunderdolts' electrical dischages are created by 0.5 Volts over the DCBL?
 
Sol88: A delusion that the evidence for the origin of comets does not exist

Sol88 said:
Any way back to sublimating dirtysnowballs that are the pristine left overs from the formation of the Solar system!
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20 January 2017 Sol88: A delusion that the evidence for the origin of comets does not exist!
There is no "back". The evidence for over 50 years is that comets are dust and ices and the rational source for this is remnants from the formation of the Solar system.
 
Sol88: Insults the content of a paper with his deluded electric comet

Sol88 said:
...but the meat of the paper is excellent, from an ELECTRIC COMET PERSPECTIVE.
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20 January 2017 Sol88: Insults the content of tusenfem's paper with his ignorant electric comet delusion.

That is an insult because your ignorant delusion that comets are rocks blasted from the Earth in recent times by electrical discharges from Venus is obviously nothing to do with valid science in tusenfem's paper.
 
Sol88: A delusion that a paper shows that 67P is negatively charged wrt the Sun

Sol88 said:
Ionospheric plasma of comet 67P probed by Rosetta at 3 au from the Sun

Suprathermal electron environment of comet 67P/Churyumov

Observation of charged nanograins at comet 67P/Churyumov-Gerasimenko not pay walled yet!
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20 January 2017 Sol88: A delusion that a paper "almost" shows that 67P is negatively charged in relation to the Sun.

This paper is about charged nanograins not on the "Comet itself". The mechanisms to charge the small grains include "Photoionization by the Sun, particle impact by the solar wind, and collection of cometary electrons".
Observation of charged nanograins at comet 67P/Churyumov-Gerasimenko
Abstract
Soon after the Rosetta Orbiter rendezvoused with comet 67P/Churyumov-Gerasimenko at a solar distance of ~3.5 AU and began to fly in triangular-shaped trajectories around it, the Ion and Electron Sensor detected negative particles at energies from about 100 eV/q to over 18 keV/q. The lower energy particles came from roughly the direction of the comet; the higher-energy particles came from approximately the solar direction. These particles are interpreted as clusters of molecules, most likely water, which we refer to as nanograins because their inferred diameters are less than 100 nm. Acceleration of the grains away from the comet is through gas drag by the expanding cometary atmosphere, while acceleration back to the vicinity of the comet is caused partly by solar radiation pressure but mainly by the solar wind electric field. These observations represent the first measurements of energetic charged submicron-sized dust or ice grains (nanograins) in a cometary environment.

1 Introduction
As a comet approaches the Sun, solar insolation produces an expanding atmosphere through heating and sublimation of water vapor and other volatile elements and compounds that were previously adsorbed on the surface of its nucleus or perhaps more likely that originate below the surface. In the process, some of the smaller dust and icy conglomerates on the surface are dragged away by the expanding atmosphere. Photoionization by the Sun, particle impact by the solar wind, and collection of cometary electrons produce a partially ionized gas with embedded dust and ice grains, i. e., an expanding dusty plasma. Our interest here is in the smaller-sized dust or ice grains, which we refer to as nanograins (diameters of up to hundreds of nanometers). The charge on the grains is determined by photoemission, electron collection, and secondary emission currents [cf. Horányi and Mendis, 1985].
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tusenfem said:
And, assuming it was a double layer, then what? What is that supposed to tell us?
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Come now, tusenfem, you know the answer:

mgc.gif
 
Sol88 said:
Lucky it's not but 'cos we KNOW it a sublimating dirtyiceball! Amazing stuff this sublimating "ices" almost like it's majik!
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So you still haven't figured out what sublimation is? It might sound like magic to you, but it is a very straightforward process. I'll try to make this a simple as possible:
When you take ice out of your freezer, and leave it at room temperature, it melts, because your kitchen is at a much higher temperature than 0 C. This has to happen. No magic involved. When you collect all that melted water, and heat it to 100 C, it turns into steam. If you boil it for long enough, it will all turn to steam (water vapour).
Now, at a comet, the ice is in a vacuum. Different temperatures apply, and the H2O ice won't go through a liquid phase. So, at a certain temperature (~150 K; ~ -120 C) the ice can no longer remain in a solid form, and turns straight into water vapour. No magic involved. The ice can no more refuse to sublimate, than the ice in your kitchen can refuse to melt, or boil at the appropriate temperatures.
And we know there is lots of ice. And we know the temperature becomes high enough. So, what would you have it do? Sit there, with a sullen look on its face, with crossed arms, saying "I refuse to follow the laws of physics, I'm staying right here." ??????
 
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Sublimation happens with ice here on earth, but just like the hardness of plow walls at -40, Sol88 will deny it happens.

You can watch it sublimate off your windshield a lot of mornings.
 
tusenfem said:
No, that is not a lot, it is a total current, not a curent density.
Ohm's law for circuits will not help you much, you would need to use the plasma physics generalized Ohm's law. But then again this is NOT a voltage driven current, this is a current generated by curl B.
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As we all know I'm totally stupip, are you able to explain to me how the current is generated by curl B?

Not sure I understand.
 
100,000 Amps
No, that is not a lot, it is a total current, not a current density.
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oh ok.

so
an example of such a structure is shown in minimum variance coordinates [Sonnerup and
Scheible, 1998], which has the classical characteristics of a flux rope, which means that there
is a strong current flowing along the centre of the tube. Using the model by Vrsnak et al.
[2015], the axial current can be estimated by:
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Tusenfem, are you able to give me a feel for how strong the strong current flowing along the centre of the tube is?
 
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jonesdave116 said:
Sunlight.
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Ahh sunlight!! something I'm very familiar with, though I have seen felt snow/ice etc.

but here's the thing A trick we use at the beach as kids when we forgot our thongs (flip flops) and the sand was too hot to walk on was to kind do a quick shuffle to get your feet a couple cm below the sand and bingo WAYYY cooler :D

So I'm sure the "fluffy dust" would be an excellent insulator as observed but it can still be invoked to power sustained "jets". :boggled:

like

Instrument results

Data from the SESAME instrument determined that, rather than being "soft and fluffy" as expected, Philae's first touchdown site held a large amount of water ice under a layer of granular material about 25 cm (9.8 in) deep.[55] It found that the mechanical strength of the ice was high and that cometary activity in that region was low. At the final landing site, the MUPUS instrument was unable to hammer very far into the comet's surface, despite power being gradually increased. This area was determined to have the consistency of solid ice[56][57] or pumice.[58]
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Good stuff that "sunlight"

Upon Philae's first touchdown on the comet's surface, COSAC measured material at the bottom of the vehicle which was disturbed by the landing, while the Ptolemy instrument measured material at the top of the vehicle. Sixteen organic compounds were detected, four of which were seen for the first time on a comet, including acetamide, acetone, methyl isocyanate and propionaldehyde.[61][62][63]
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So along with water and carbon dioxide ice we also have acetamide, acetone, methyl isocyanate and propionaldehyde ices.
 
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Sol88: Lies that "fluffy dust" would be an excellent insulator as observed

Sol88 said:
...So I'm sure the "fluffy dust" would be an excellent insulator as observed but it can still be invoked to power sustained "jets". :boggled:
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20 January 2017 Sol88: Lies that "fluffy dust" would be an excellent insulator as observed.

We have the idiocy of scare quotes around fluffy dust (actually observed :eek:) and jets (which exist ::jaw-dropp!)

The information presented in this thread makes your statement multiple lies:
  1. The fluffy dust that has been observed was in the coma and need not be fluffy on the nucleus.
  2. That fluffy dust is not invoked to power sustained jets.
  3. The actual dust on the surface is not an "excellent insulator".
  4. The body of 67P is ~70% porous, heat conductive, ices and dust.
 
Sol88: Ignorantly cites the visible spectrum Wikipedia article

Sol88 said:
Good stuff that "sunlight"
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20 January 2017 Sol88: Ignorantly cites the visible spectrum Wikipedia article.
The Sun does not just emit light in the visible spectrum. This is not quite a lie but you have even cited papers about photoionization which can done by UV light.
Photoionization creates ions and leads to the formation of acetamide, acetone, methyl isocyanate and propionaldehyde ices. As well as the other 12 compounds already detected on comets.

Measurements of the near-nucleus coma of comet 67P/Churyumov-Gerasimenko with the Alice far-ultraviolet spectrograph on Rosetta has the observation that UV light dissociates H2O molecules and then the energetic electron released also dissociates H2O molecules.
 
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your slipp'n RC

Instrument results

Data from the SESAME instrument determined that, rather than being "soft and fluffy" as expected,
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It was expected to be soft and fluffy!!!

You were wrong AGAIN! ;)

If you put as much time into understanding the contradictions of the mainstream EXPECTED cometary features as you do compiling lists, then I'm sure your cranium would be happy to removed from your rectum!
 
Sol88 said:
Ahh sunlight!! something I'm very familiar with, though I have seen felt snow/ice etc.

but here's the thing A trick we use at the beach as kids when we forgot our thongs (flip flops) and the sand was too hot to walk on was to kind do a quick shuffle to get your feet a couple cm below the sand and bingo WAYYY cooler :D

So I'm sure the "fluffy dust" would be an excellent insulator as observed but it can still be invoked to power sustained "jets". :boggled:

like



Good stuff that "sunlight"



So along with water and carbon dioxide ice we also have acetamide, acetone, methyl isocyanate and propionaldehyde ices.
Click to expand...

Sorry, but those are just more arguments from incredulity. MIRO was capable of measuring subsurface temperatures, which is how they can calculate the thermal inertia. There is no problem with sublimation of subsurface ice, depending on its depth. As results have shown, much of the ice seems to be close to the surface. It is why the comet was 'bluer' as activity increased. It only needs to get to ~ 150 K (for water ice; much lower for CO2, CO etc). Surface temperature around perihelion (from memory) was about 340 K.
Anyway, it's kind of pointless saying something can't happen, when it quite clearly does. Ice is observed, and the vapour from it is observed. QED.
 
Reality Check said:
20 January 2017 Sol88: Lies that "fluffy dust" would be an excellent insulator as observed.

We have the idiocy of scare quotes around fluffy dust (actually observed :eek:) and jets (which exist ::jaw-dropp!)

The information presented in this thread makes your statement multiple lies:
  1. The fluffy dust that has been observed was in the coma and need not be fluffy on the nucleus.
  2. That fluffy dust is not invoked to power sustained jets.
  3. The actual dust on the surface is not an "excellent insulator".
  4. The body of 67P is ~70% porous, heat conductive, ices and dust.
Click to expand...

How did your fluffy dust get into the coma?

Just hilarious how far that cranium can be up the rectum! :D
 
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Reality Check said:
20 January 2017 Sol88: Ignorantly cites the visible spectrum Wikipedia article.
The Sun does not just emit light in the visible spectrum. This is not quite a lie but you have even cited papers about photoionization which can done by UV light.
Photoionization creates ions and leads to the formation of acetamide, acetone, methyl isocyanate and propionaldehyde ices. As well as the other 12 compounds already detected on comets.
Click to expand...

Well your coma would be optically thick at perihelion but sunlight can still power and sustain the jets! even on the night side!

I'm still going with JD116's electromagnetic induction!
 
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