Continuation The Electric Comet Theory Boogaloo (Part 2)

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Actually, I should have done some research, on what's already available, here in the ISF.

For example, there are two excellent threads on this topic:
Magnetic reconnection and physical processes
Problems With Magnetic Reconnection

Between them they address each and every one of the points in my initial post (and thanks to jd116 for some additional historical references on Alfven). And lots more besides.

Now back to your regular program...

Also, just to continue the OT theme, there was a HUGE 'electric sun' thread (http://www.internationalskeptics.com/forums/showthread.php?t=193096), in which Tim Thompson and W.D. Clinger, among others, tried to explain it to MM. MM eventually got banned, seemingly none the wiser. I however, having read that whole thread recently, now have a reasonable understanding of MRx, thanks to the aforementioned TT and WDC!

WDC created a very useful webpage which is still up:
http://www.cesura17.net/~will/Ephemera/Nerdliness/MR/

And there is the collection linking Tim's posts:
http://www.cesura17.net/~TimThompson/
 
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Here is the last image acquired from the ROLIS camera on Philae, at 0.8mm per pixel


(Click to enlarge. Opens in separate window)

Close-up images of the final Philae landing site on comet 67P/Churyumov-Gerasimenko acquired by the ROLIS camera
Schröder, S. E. et al
https://arxiv.org/abs/1701.00685
 
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Sorry, yet more OT ...
Also, just to continue the OT theme, there was a HUGE 'electric sun' thread (http://www.internationalskeptics.com/forums/showthread.php?t=193096), in which Tim Thompson and W.D. Clinger, among others, tried to explain it to MM. MM eventually got banned, seemingly none the wiser. I however, having read that whole thread recently, now have a reasonable understanding of MRx, thanks to the aforementioned TT and WDC!
I'm slowly reading through it, good for when you're watching TV (during the ads). There are some absolute gems in it! :) I'll write up a few later. In general it's extremely educational, especially the clarity of some of the explanations from ISF members.

WDC created a very useful webpage which is still up:
http://www.cesura17.net/~will/Ephemera/Nerdliness/MR/

And there is the collection linking Tim's posts:
http://www.cesura17.net/~TimThompson/
I'll second ferd: thanks hugely for these links.

One of the things I particularly liked, in both these sources and that huge 'electric sun' thread, is the different perspective a mathematician (W.D. Clinger in this case) brings to topics like Magnetic Reconnection and Maxwell's equations, different from the perspectives of physicists and space scientists (not only tusenfem and Tim Thompson), and then again from engineers (dasmiller, for one).
 
Okay, I have been absent, as I had a guest at work, discussing Rosetta data :-)
This weekend I am going to Mar Vanwa Tyalieva, so no internet.
At least I can tell you that my paper on current sheets at 67P will be accepted after some minor changes.
Laters!!
 
Sigh....Just for the lurkers, I'll link to this again:

http://www.internationalskeptics.com/forums/showpost.php?p=11702725&postcount=3232

Thornhill's quote is from the fantasy poster here: http://www.thunderbolts.info/pdf/ElectricComet.pdf

Now, tell us, why is he telling his acolytes that scientists are "assuming" that they see H2O? If he's not bothered about water at comets, why not come up with some more of his scientifically impossible woo to explain it? Magic electric fairies, maybe? Most of them would believe it.
What scientists were actually seeing was unambiguously, definitively, H2O. For 20 years prior to when he wrote that rubbish. So, was he lying? Or is he just scientifically illiterate? What do the lurkers think that the signal at ~557 GHz in the sub-mm is, for example? And do they think the IR detections could possibly be mistaking OH for H2O? I'll tell you now - no they couldn't.
So, what is it, lying or scientific illiteracy? I'm happy with whatever you plump for. There are no other options.

And then we have his fantasy of solar wind H+ smashing into O- at 400 km/s to create OH (which scientists were obviously mistaking for H2O!). Check with any scientist in the field; H+ will not combine with anything at ~1 keV! Why didn't he know this? Again, I'm happy with the outcome of either lying or scientific illiteracy.
Apart from which, he is supposed to have been researching comets for 30 years when he wrote that pile of fail. How come he missed the bit about the solar wind not actually getting anywhere near the nucleus to perform his impossible woo in the first place? Hopeless research skills, lying or scientific illiteracy? I'm happy with any of those.

And then, from December 2014, we have: http://www.holoscience.com/wp/congratulations-rosetta-shame-about-the-science/

However, it’s a shame that scientists misled the engineers with their cherished story of icy comets, which resulted in an inappropriate design for the lander, Philae
.

Despite the fact the he knew that the Tempel 1 impact had excavated a shed load of icy grains. Despite the fact that he must have seen the pictures, not to mention the papers, documenting the proverbial snowstorm around Hartley 2. I'll post the pic again, because it's so lovely!

snowstorm_strip.jpg


From: https://science.nasa.gov/science-news/science-at-nasa/2010/18nov_cometsnowstorm (2010)

Now, given that his research seems to almost totally consist of cherry picking and quote mining from press releases, how do you think all that managed to escape his attention? And how he failed, in a fair minded way, to present such evidence to those who hang on his every word? What would one call that? Lying by omission, rubbish (i.e. selective) research? Ignoring it, and hoping nobody within EU circles would notice (a fair assumption)? Deceit would probably be the nicest thing I could call it.

Further from that article, we have:

But despite the stark reality, the story of comets remains unchanged. The ice ‘must be’ buried beneath that rocky-looking crust. This is a favourite recourse of astrophysicists to have mechanisms buried out of sight inside celestial bodies or black holes where they are difficult or impossible to verify. But this time the Philae lander may have sent sufficient information to expose this convenient fiction.

Sorry, but that is just outright lying. See above, re the Tempel 1 impactor excavating a load of solid ice. And CO2 jets (electric discharges according to the genius Thornhill!) excavating an immense amount at Hartley 2.

And then he's off again, with this pile of scientific fail and obfuscation:

However, the Vega 2 spacecraft found the reverse, which “may indicate the existence of parents of OH other than H2O.” This finding supports the Electric Universe model, which proposes comet nuclei as fragments of planetary surfaces. Their rocky surfaces are spark-machined by a cold cathode type of coronal discharge. The electricity is provided by the comet’s motion in the solar plasma’s weak electric field (which is also responsible for the acceleration of the solar wind away from the Sun despite its powerful gravity). OH is produced easily from clay and rock minerals by an electric discharge.

Not going to get OH from the solar wind, is he? And he isn't going to be turning that into H2O, is he? As for discharges; lol, is the most scientific word I can think of to describe that! He could have looked at the papers on Hartley 2, where his 'discharges' were seen to be cold, neutral jets of CO2, entraining water ice! Why didn't he know this in December 2014?
Why didn't he check out the paper that showed the temperature map of that comet, where there was zero indication of any electric woo going on? More rubbish research, or more omission of facts just to keep the fantasy alive? You decide.

He prattles on further, in regard to Halley:

The power supply problem may have a simple explanation related to the electrical charging of the spacecraft in the comet’s highly active environment.

Err. no. Such a thing would have been measured by the instruments. And wasn't. As he really ought to know. Put that one down to just plain obfuscation.

And, after a pile more gibberish, we get this pearl of scientific wisdom:

If it looks like rock, it’s safest to assume it is rock! It is not necessary for the low density to be due solely to high porosity of the interior of the comet. The electrical model even suggests hollowness as a possibility
.
Now, that is just idiocy, given the size of the crater caused by the impact into Tempel 1. Or did that pass him by as well? For somebody who has supposedly been researching comets since the mid-70s, that is an egregious oversight. Or was it? The rest of that nonsense is just an unfortunate prediction, given that MIRO and CONSERT both went on to show that it isn't rock, and nor is it hollow. Porosity means small scale, Wal. Not dirty great holes in the thing! As we already knew from lab simulations, but why would he know that, given how much else he didn't seem to know?

I could go on and on (and frequently have). That is just a fraction of the material that I have collected on the deceit that has been the electric comet fantasy. Hands up anyone who bought into it? Shame on you! Hands up anyone who thinks he has been the least bit honest in his presentation of it?

The distribution of water ice in the interior of Comet Tempel 1
Sunshine, J. M. et al (2007)
https://pdfs.semanticscholar.org/5abd/57ce43924466abb4c4f3bca01f2a50dd12a3.pdf

Detection of water ice grains after the DEEP IMPACT onto Comet 9P/Tempel 1
Schulz, R. et al (2006)
http://www.aanda.org/articles/aa/full/2006/12/aahi281/aahi281.right.html

Return to Comet Tempel 1: Overview of Stardust-NExT results
Veverka, J. et al (2013)
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.470.3350&rep=rep1&type=pdf

Water ice and dust in the innermost coma of comet 103P/Hartley 2
Protopapa, S. et al (2014)
https://arxiv.org/pdf/1406.3382.pdf

The temperature, thermal inertia, roughness and color of the nuclei of Comets 103P/Hartley 2 and 9P/Tempel 1
Groussin, O. et al(2013)
https://www.researchgate.net/profil...9PTempel_1/links/02bfe5137699829f03000000.pdf
 
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And again, for the hard of reading over at woo central: I didn't say that Thornhill never said there would be ANY water at a comet. I said he was a liar. Full stop. Read the post again:

Thornhil, Dec 2014:
However, it’s a shame that scientists misled the engineers with their cherished story of icy comets, which resulted in an inappropriate design for the lander, Philae

Accusing scientists of misleading engineers with a 'story' of icy comets. Essentially he's accusing scientists of lying.

Thornhill, Dec 2014:
But despite the stark reality, the story of comets remains unchanged. The ice ‘must be’ buried beneath that rocky-looking crust. This is a favourite recourse of astrophysicists to have mechanisms buried out of sight inside celestial bodies or black holes where they are difficult or impossible to verify. But this time the Philae lander may have sent sufficient information to expose this convenient fiction.

Multiple lying going on there, and again accusing scientists of lying by using the word 'fiction.'

Me:
Sorry, but that is just outright lying. See above, re the Tempel 1 impactor excavating a load of solid ice. And CO2 jets (electric discharges according to the genius Thornhill!) excavating an immense amount at Hartley 2.

He KNEW there was ice below the surface. So what is he saying in those posts in Dec 2014? Did Tempel 1 never happen? Did all that ice at Hartley 2 never happen? He KNEW about it, and then lied about it. Very, very, simple to see. Which part of Thornhill denying that there was ice below the surface, and knowing that it was below the surface from the Tempel 1 and Hartley 2 missions, and then accusing scientists of essentially making up stories to keep their model alive by 'burying' the ice, is not lying? It was known to be there. It had been proven to be there. Get it?
So I'm sorry if I wasn't clear; I'll say it again - he was lying. It is not about whether he has said there might be some water there or not. It is about any lie he used to prop up his idiotic nonsense. And I've just pointed a couple out.

tl;dr? Thornhill lied.
 
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geez you go bush for a week and...

Couple a things from your favourite paper

The distribution of water ice on the surface of Tempel 1 observed
by DI is restricted to three discrete and relatively small
areas, none of which were near the location of the impact.
Sunshine et al. (2006a) note that the amount of surface water
ice is insufficient to support the ambient outgassing observed
for Tempel 1, and call for sub-surface (but presumably near surface)
sources of water.
This result is consistent with the derived
surface temperatures, which were much higher than the sublimation
point for water ice and the low thermal inertia, which
implies a shallow thermal penetration depth

A call for subsurface ice? why would that be? Seems if not (no ice on the surface, near surface or even really really deep) the model is falsified? why is the ice so uniform and small(0.5um)? and how does it survive as ice at 3500k?

Wal Thornhill the LIAR said it would be into rock but in your favourite paper it states
3.1. At impact
A’Hearn et al. (2005) describe in detail the first component
from the impact event, highly shocked material moving downrange
at a velocity of ∼10 km s−1. The brightness of the visible
data suggest the melting of silicates
(Melosh, 2006)
like ummm...ROCK???


from Melosh's paper
Introduction: The Deep Impact spacecraft hardlanded
on the surface of comet Tempel 1at about
05:44:36 UTC on 4 July 2005 [1]. The earliest stages
of the impact event were recorded in a series of 64 x
64 pixel subframes of the MRI (Medium Resolution
imaging) camera system. Each exposure lasted about
51 msec and the field of view was nearly centered on
the impact site, thus catching the earliest phases of
the impact process. These frames witnessed the
beginning of the conical ejecta plume’s expansion.
In addition, they caught the expansion of a cloud of
incandescent, probably liquid silicate, droplets that
sprayed away from the impact site

further

The continuous curve shown is the
brightness expected in the clear filter passband of the
MRI camera system from a 4000 kg cloud of 160 μm
diameter incandescent spherical liquid silicate
droplets, density 2500 kg/m3, expanding at a radial
velocity of 1.7 km/sec. The initial temperature is
3500 K, and the droplet’s albedo is 0.1.

and the kicker

Assuming an
albedo of 0.1, appropriate for mafic silicate liquids,
the total mass of the droplets was about 4000 kg.
Because this is 10 times the mass of the impactor, we
assume that the glowing material originated mainly
from the comet and is thus probably silicate in
composition.

So no need for sub surface ice as there is plenty of OH tied up in all the ejecta and if you have enough water "vapour" well...Spontaneous formation of nonspherical water ice grains in a plasma environment
Immediately upon introduction of the water vapor, water ice grains are observed to form. It is observed that water ice grains are only generated when there is plasma; this requirement for plasma was also observed by Shimizu et al. [2010].

So I still see no need for the
call for sub-surface (but presumably near surface)
sources of water.

Seems much more complicated than a melting snowyiceyfluflydustball, does it not JD116?

but if your happy to swallow the codswallop dished up by mainstream to SAVE the 1950's model of what comets where thought to be well, good luck! :)
 
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Sol88: The idiocy of an uncited "your favourite paper"

geez you go bush for a week and...
You return with a rant about the documented liar Wal Thornhiill and insist on emphasizing his abysmal ignorance and displaying your comet delusions yet again :jaw-dropp!

The overall lie that Wal Thornhill wrote was that the EU had confirmed predictions abut Deep Impact and his confirmation was press releases that said that he was lying - "two flashes" is not a flash before impact, surprise at the brightness of a]images is not detection of energy release, etc. :eek:!

Now you point out that Wal Thronhill is also abysmally ignorant about the existence of papers on the Deep Impact results by citing them!

22 February 2017 Sol88: The idiocy of an uncited "your favourite paper"
 
Sol88: A ignorant question of "A call for subsurface ice?

A call for subsurface ice?
22 February 2017 Sol88: A ignorant question of "A call for subsurface ice?"
What you quoted was the fact of detection of water ice on the surface of Tempel 1. That ice is not sufficient to explain the observed outgassing of water. The observed outgassing of water needs additional sources of water which cannot be on the surface, i.e. subsurface :eek:!

Your delusions about comets are not a valid source of anything including water.
 
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Sol88: A lie of "no ice on the surface" when you quoted the detection of water ice

? Seems if not (no ice on the surface, near surface or even really really deep) the model is falsified?
22 February 2017 Sol88: A lie of "no ice on the surface" when you quoted the detection of water ice on the surface of Tempel 1 :eek:!
 
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Sol88: An irrelevant delusion about "no need for sub surface ice"

and the kicker
22 February 2017 Sol88: An irrelevant delusion about "no need for sub surface ice"
What he quoted is about a cloud of 160 μm diameter incandescent spherical liquid droplets, i.e. melted grains of comet dust. That is what rational people expect for an impact on comet nucleus made of ices and dust.
 
geez you go bush for a week and...

Couple a things from your favourite paper



A call for subsurface ice? why would that be? Seems if not (no ice on the surface, near surface or even really really deep) the model is falsified? why is the ice so uniform and small(0.5um)? and how does it survive as ice at 3500k?

Wal Thornhill the LIAR said it would be into rock but in your favourite paper it states like ummm...ROCK???


from Melosh's paper

further



and the kicker



So no need for sub surface ice as there is plenty of OH tied up in all the ejecta and if you have enough water "vapour" well...Spontaneous formation of nonspherical water ice grains in a plasma environment

So I still see no need for the

Seems much more complicated than a melting snowyiceyfluflydustball, does it not JD116?

but if your happy to swallow the codswallop dished up by mainstream to SAVE the 1950's model of what comets where thought to be well, good luck! :)


Greetings, lurkers! What Sol hopes some of you don't know is that while many rocks (minerals) contain silicates, not all silicates are rocks (minerals). Silicates are just any chemical compound that contains the element silicon https://en.m.wikipedia.org/wiki/Silicate. The main reason we know comets are not rock is that the bulk density of comets has been measured many times and is far less than rock. The regular posters in this thread know this and I'm pretty Sol knows it too, which makes Sol's statement what your mother would have called a "fib".

Sol, buddy, time to freshen up your act. We've seen these same strawmen and false equivalencies from you for many years now.
 
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Sol88: Lies about "Spontaneous formation of nonspherical water ice grains in a ..."

well...Spontaneous formation of nonspherical water ice grains in a plasma environment
22 February 2017 Sol88: Lies about "Spontaneous formation of nonspherical water ice grains in a plasma environment"
Spontaneous formation of nonspherical water ice grains in a plasma environment is an experiment where water vapor (not OH) was injected into a dusty plasma. There is no mention of OH.
 
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