Dancing David
Penultimate Amazing
I get that you think you see these things in those images. Do you get that your interlocutors are not denying that sunspots actually have 3D properties?
He does, it is misdirection.
I get that you think you see these things in those images. Do you get that your interlocutors are not denying that sunspots actually have 3D properties?
Well, both GM & Sol are correct, but certainly Sol's definition is more precise
Now, to some extent all light is blocked, but the percentage of light that gets through any substance is wavelength (or frequency) dependent.
The blocking is done by a combination of scattering and absorption.
Continuum opacity results from scattering of photons, mostly off of electrons, or from ionization, where any photon energetic enough will encounter an atom and lose energy, or be completely absorbed, in the act of kicking an electron away from the atom.
Line opacity results from complete absorption of a photon in the act of moving an electron bound to the atom from one energy to a higher energy.
It's the line opacity, or absorption, that creates the dark lines in the solar spectrum ( http://spiff.rit.edu/richmond/asras/chemcomp_i/solar_spectrum_big.jpg a big image 8192x5464 pixels might load slow).
So in detail opacity can be a complicated affair. I am sure that the general idea of the present exercise is to try to avoid as much of the complication as possible and keep it simple. A continuum opacity should do for that.
Believe it or not, I'm not even interested in wiggle room, I'm interested in facts and very interested in sols numbers.The "opacity" definition sol provided is correct. GM's definition is pathetically misleading, just like about every other statement that comes out of his mouth. A "layer" that blocks 90+ of the light isn't blocking all the light. If the light source is bright enough, it might still be able to be seen below that "depth" depending on the intensity of the light source. A lightening discharge lights up the clouds and that illumination can often be seen from space. Nothing is 100 SPF infinity as GM would have you believe.
Stick with sol. Even I trust his math and physics skills.
Yes. If the intensity is great enough, I might still be able to "see" something below that point (sol's definition), if only 'faintly". It would be like shining a flashlight through a sock in a dark room and blocking 90% of that light. You *would* still see a dim outline of the flashlight, even if at a reduced rate. If you played that sock game out in the darkest cave, you might see a light source where 99% of the light was blocked and only a few photons were reaching your eye. It all depends on the intensity of the light source and how much light is actually blocked and how much reaches your eye.
Which is pretty much what I have been claiming the whole time. Curl >0 and the whole bit. Flux ropes touch the magnetopause first(anchored on the iron solar surface, which supplies the current, no doubt) and then there is a reconnection.
The magnetic field comes from the current following the RIGHT HAND RULE.
"The source of all magnetic fields in a plasma are current systems,"[1]
There is a disturbance in the Force and "magnetic field reconnection occurs when two flux ropes merge."[1]
Bang!!! Reconnection!!!!
Plasmoids happen after reconnection in the magnetotail as well as an observed substorm and increase in Auroral brightness.
1 (Refs)Identification of a Quasiseparatrix Layer in a Reconnecting Laboratory Magnetoplasma PRL 103, 105002 (2009)
So what do you say to that Tim and Tusenfem?
"Opacity is defined by what fraction of the intensity is attenuated passing through the substance."
I take this to meant that a substance in which 90% of the intensity is attenuated when passing through it is 90% opaque.
Weird. Where are the extra electrons coming from to make H-? What's the ionization fraction? And didn't you just say above that the electron density is what matters most?
Hey tus, maybe you can help. Given a plasma at definite temperature and density, but with some bizarre composition (mostly Ne, some H), what's the quickest way to get the opacity? Is there a table or calculator available online that will do it, or a simple analytic approximation? At least for the moment we care about continuum opacity.
Thanks. I look forward to where this exercise is going.Opacity is usually defined as a quantity with units of length^2/mass. You multiply it by the density of the material and its thickness along the direction the light is traveling - that gives a pure number. The exponential of minus that number times the input intensity is the output intensity (i.e. the intensity of the light that makes it through).
It's an exponential for a simple reason - each little bit of material absorbs or scatters some definite fraction of the light, so the integrated effect is to decrease the intensity exponentially.
There's a formula for it here.
It would also be natural to refer to that entire exponential factor as the opacity of some object or layer, but it's less convenient since then opacity would depend on thickness, angle, etc. So instead it's defined as a per unit density per unit length quantity. Anyway, in the end we'll have a formula that tells us what fraction of the light emitted from some surface x km deep in the photosphere will make it out.
H- is one of the most important ions in the outer layers.
The "extra" electrons just come from the plasma (electrons galore).
This ion is stable as it fills the 1st electron shell into a noble gas configuration.
The easiest way to get the opacity is by going to the opacity project and have them calculate it.
Stick with sol. Even I trust his math and physics skills.
If all the H ions are H-, you'd need some positively charged ions of He or something else to supply the electrons. Instead, are you saying that some H is H+ and some is H-? And than the H- ends up in the outer layers?
Excellent, thanks. This looks like it can handle what we need.
If that isn't wiggle room, I don't know what is. You're hung up on this 90% thing, and you think that Sol's numbers are somehow going to give you wiggle room to see through opaque plasma. This is Sol's definition of opacity:
"Opacity is defined by what fraction of the intensity is attenuated passing through the substance."
I take this to mean that a substance in which 90% of the intensity is attenuated when passing through it is 90% opaque.
You are taking a fractional measure of opacity as the definition of opaque.
He he he...![]()
Argh, Michael. Seriously. That's Sol's definition of opacity. A sock with 90% opacity is not necessarily an opaque sock. Sol did not define "opaque" to be a substance exhibiting 90% opacity. Sheesh.According to sol's (accurate) definition of "opaque", I can put an 'opaque' sock over the flashlight, and cut down about 90% of that light.
OK.
I still need to know whether you mean 90%Ne by mass or by number. In other words, you might mean that if I weigh some plasma, 90% of the weight comes from Ne and 10% from H. Or, you might mean that if I count atoms, 90% will be Ne and 10% will be H. Those are very different, because a typical Ne atom weighs 20x as much as an H atom (i.e. a proton).
And here we see exactly the problem Michael has. Maths is the language of science, and it's impossible to do anything other than the most basic things without using maths.
Without maths, you can see that a ball falls and call it gravity, but you can't work out how strong it is, how it varies, or make any predictions about it.
Without maths, you can see that hot things cool down and cold things heat up, but you can't work out how fast or why they might be doing it.
When it comes to more complex things, such as the Sun for example, there is virtually nothing you can work out at all without maths.
When you have a 2D picture taken from millions of away, of an object thousands of miles across and deep, involving an environment unlike any found on Earth, you need maths to even work out what the picture might be showing, let alone to come up with a theory of why it might be showing that.
In 5 or 6 years of promoting his religion,
Michael has not attempted do any maths, not even once.
But if Michael actually wants to carry on the façade, he's going to have to try taking things a little more seriously.
Argh, Michael. Seriously. That's Sol's definition of opacity. A sock with 90% opacity is not necessarily an opaque sock.
I looked around and found some tables, but they're intended for stars, so I didn't see anything with anywhere near that much neon.
So that's why Michael Mozina doesn't talk about the math.What's the point of talking about the math when you don't have the "physics" right?
So I didn't really have to read the first 7 chapters of Hawking and Ellis? Bummer.You "assume" for instance that the all the mass and energy of the universe was concentrated to a single point in spacetime.
Since when did empirical physics exclude thermodynamics?Your maths are meaningless IMO because they ignore empirical physics.
You'll eventually need the metals and other elements to explain the "white light', but I doubt they'd have much effect on the opacity in any relevant way