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While this research provides more clarity on coronal dynamics, McIntosh is keen to point out that Type II spicules probably don’t tell the whole coronal heating story.
NASA’s coronal physics heavyweight James Klimchuk agrees. “It is very nice work, but it is absolutely not the final story on the origin of hot coronal plasma,” he said.
“Based on some simple calculations I have done, spicules account for only a small fraction of the hot plasma.”
................
But it is most likely that it’s not one coronal heating mechanism, but a combination of the above and, perhaps, a mechanism we haven’t uncovered yet.
Originally posted by wildespace
I'm not an expert on these things, but isn't the Sun's magnetic field created by the spinning core?
How does the solar dynamo work?
Since there are no magnets or rotating wheels inside the Sun you probably wonder how the solar dynamo works. In order to understand how the Sun generates magnetic fields you have basically only need to remember two facts. Firstly, the convection zone consists of a plasma, i.e. a gas that contains electrically charged particles. Secondly, the plasma in the convection zone is continuously moving around. Since the plasma is moving, the charged particles are moving and we obtain electrical currents. However,electrical currents generate magnetic fields (Ampere's law), as we mentioned above. These magnetic fields in turn generate electric currents (Faraday's law) and therefore we obtain the following loop: electric current - magnetic field - electric current - magnetic field - electric current - magnetic field etc, etc. As long as this loop is not interrupted the Sun will always produce magnetic fields.
Many aspects concerning the solar dynamo are not well understood even today. Here are just a few problems that scientists are working on at the moment:
1. It is still not totally clear where the solar dynamo is located. is it sitting in the convection zone or in the overshoot zone?
2. Does the alpha-effect work or does it not work. This is a very hotly debated question.
3. What causes the differential rotation of the Sun?
A lot of other things disprove the electric sun hypothesis, we don't need spicules to disprove it.
Originally posted by examinedlife
We should not jump to conclusions too quicky about the observations of spicules on the sun. This does not disprove the electrical sun hypothesis.
Originally posted by Arbitrageur
Thanks for the feedback, I put some effort into the presentation so I'm glad someone noticed.
Originally posted by JibbyJedi
So when is Al Gore going to tell us we need a new tax to pay for plasma flares making the sun too hot, in turn creating global warming? I think we should throw cash at the sun to make it stop being so difficult.
Very nice information presentation here.
Over the next billion years or so, we think the sun is going to start getting so hot we won't be able to survive on the Earth, so at some point we need to start thinking about how we're going to get off this rock and colonize some other planets. If our descendants just stay here on Earth, eventually they'll be cooked by an ever hotter, and larger, sun. Not a very pleasant prospect, but it's something I think about every time someone says we can't afford to send a man to Mars. We have to start somewhere.
No, it's not a violation of the 2nd law of thermodynamics. If you do a lab experiment with a cold region and a hot region, the heat will usually flow from the hotter region to the colder (not always as you suggest, but nearly always). But such a lab experiment is an oversimplification of the conditions around the sun. Missing are the electromagnetic fields.
Originally posted by examinedlife
Second Law of Thermodynamics forbids heat to flow from a colder region to a hotter region. This would violate entropy.
Obviously research is ongoing and confirmed detailed explanations are lacking. But some things are apparent to me:
What causes the ejection of the plasma spicules, radially outward from the sun's surface? Could it be an E-field?
Well at least space would be colonized by somebody, (perhaps the Soviets?) and Humans won't be made extinct by next giant asteroid. As it stands now, nobody is colonizing outside the Earth so we're vulnerable to extinction from a giant rock just like the dinosaurs.
Originally posted by csgt428
Imagine where we would be now if we had spent even half the money we spent on the military in the last 50 years on space exploration and colonization instead..... Of course the Koreans, Vietnamese and the USSR would be in control....
There you go, you answered your own question about why it doesn't violate the laws of thermodynamics.
Originally posted by examinedlife
delta S or change in entropy = Q/T2 - Q/T1. Since T1 < T2, delta S would be less than zero, which is forbidden by entropy. There would have to be a "mechanism" to "force" this heat transfer.
Originally posted by examinedlife
What direct evidence is there that stars are powered by nuclear fusion?
Originally posted by Arbitrageur
If you want to try to support the electric universe theory here, that's OK, however I ask that before you do so, you refer to the first link I posted debunking it, and pull some quotes from that link regarding the aspect of EU you want to discuss, and then explain to me why the quotes are wrong.
Originally posted by examinedlife
Neutrino-oscillations-- an interesting post-hoc patch-up job to salvage an existing model. With an unbounded imagination and lots and lots of esoteric mathematics, you can put a round peg in a square hole if you assume a round peg has "superposition of states" and can transform into a square object. Is this science? Or theoretical epicyclitis? Checkout the test results of the MiniBooNE project. No confirmation of neutrino oscillation here. (We should learn from history. Too much reliance on philosophic reasoning (the Aristolean way) and mathematics, disconnected from reality, can lead to very absurd results. Science should be based on 90 per cent empirical data, and 10 per cent on reasoning.)
Nuclear fusion on the surface of the sun. Impossible one might say, not enough kinetic energy and pressure to overcome the Coloumb force of repulsion of protons. Yes, but...the current state of cold fusion research has detected the by-products of fusion, for example the U.S. Navy in 2009 detected high-energy neutrons in cold fusion experiments. Cold fusion conferences held throughout the world are currently reporting hard-data that supports fusion is occuring at room temperature. These reports are coming from academics, educated scientists. What is one of the interesting common ingredient in this process? An ELECTRICAL CURRENT.
The solar wind is probably a complex process. We are dealing with plasmas, the 4th state of matter. Can Maxwell's kinetic gas theory and velocity distribution apply here? I don't think so because Maxwell's theories assumed an ideal gas with ideal gas particles which have no interaction with each other.
Someone needs to do a computer simulation of the following:
Take a fixed volume of space and fill it with a homogenous mixture of protons and electrons, same number of each. Apply an E-field going from the left side to the right side. The left side is positively charged, the right side is negatively charged. What would be the average "drift" velocity of this mixture of protons and electrons? Assume the temperature or kinetic energy of this mixture is high enough that the separate charges cannot recombine. Would the protons migrate to the right and the electrons to the left? Or will the fact that protons have a mass 2000 times that of an electron and a diameter 1000 times of an electron bias the overall direction that this plasma mass will take? Remember, even though the velocity of a proton may be a fraction of an electron's velocity, the proton's total momentum may still have order of magnitudes greater momentum than that of an electron. Would this greater inertia of the proton have an effect on the overall direction of both charges?
Haven't studied enough on spicules to comment on the paths they would take, predicted by electrical sun theorists or standard theorists.
There are plenty of results of oscillations from Miniboone, though the data is still being collected and still isn't fully understood:
Originally posted by examinedlife
Checkout the test results of the MiniBooNE project. No confirmation of neutrino oscillation here.
MiniBooNE was conceived to test the results of that earlier Liquid Scintillator Neutrino Detector (LSND) experiment.
Back in 2004, MiniBooNe scientists presented results that seemed to contradict the LSND findings, but this time around, there are some striking similarities. Specifically, the experiment detected more oscillations than would be possible if, indeed, there were only three neutrino flavors. "These results imply that there are either new particles or forces we had not previously imagined," Byron Roe, one of the paper's co-authors, told PhysOrg.com. "The simplest explanation involves adding new neutrino-like particles, or sterile neutrinos."
What made the difference between these two runs? Well, the initial MiniBooNe experimental run used a muon neutrino beam, whereas the original LSND experiment used a muon antineutrino beam; this latest MiniBooNe experiment also used an antineutrino beam.
Frankly, it's weird that this should make a difference in the results, but it hints at the possibility of radically new physics, although scientists are reluctant to speculate as to what the link might be. That's probably because they really don't know yet and are waiting for a bit more data, but the prospect is certainly "IN-ter-esting," as Richard Feynman might say.
Yes I'm familiar with the US Navy report of high energy neutrons, but this report is justifiably viewed with a great deal of skepticism in the scientific community. That doesn't mean it's false, but it means that further confirmations are needed and despite your claim it's been confirmed, I haven't seen that so you'll need to cite sources to support that argument. And if you're aware of the problem of the Coloumb force of repulsion of protons, what is it that makes you believe that the interior of the sun wouldn't contain the necessary temperatures and pressures, and that fusion isn't occurring in the sun's core? You seem to be admitting there are neutrinos which come from fusion and you admit the difficulties of fusion on the sun's surface. There is overwhelming evidence of hot fusion and almost no evidence of cold fusion and the one paper you mentioned about cold fusion is certainly questioned:
Originally posted by examinedlife
Nuclear fusion on the surface of the sun. Impossible one might say, not enough kinetic energy and pressure to overcome the Coloumb force of repulsion of protons. Yes, but...the current state of cold fusion research has detected the by-products of fusion, for example the U.S. Navy in 2009 detected high-energy neutrons in cold fusion experiments. Cold fusion conferences held throughout the world are currently reporting hard-data that supports fusion is occuring at room temperature.
skeptics indicated that, to have their claims accepted by the scientific community, the authors have to make a quantitative analysis and they have to exclude other possible sources for those neutrons.
The Electric Sun is often attributed to a 1972 article by Ralph Juergens,[1] who acknowledges priority to a 1958 Melvin Cook monograph, and inspiration from Immanuel Velikovsky's 1946 monograph, Cosmos Without Gravitation (though Velikovsky himself did not endorse it, see below)
Alfred de Grazia reports that Velikovsky never accepted Juergens' theory, because the thermonuclear theory seemed sound to him.
Originally posted by dontlaughthink
Could any person out there please tell me how you can have magnetic fields on or around the sun?. Heat destroys magnetism and electricity is better at low temperatures, you can create heat and magnetic fields with electricity , you can create electricity from magnetic fields, possibly heat from magnetic fields:puz they were electromagnets) or is there a way to reverse the process and get electricity and magnetism from heat.
That's true about magnetic fields, but why do you say that's a mistake of mainstream cosmologists? Can you quote something from a mainstream cosmologist that highlights this mistake? I think they know this too, so I don't know what mistake you're referring to?
Originally posted by squiz
Magnetic fields cannot exist by themselves full stop. This is crucial and the underlying mistake of mainstream cosmologists.
It probably helps to talk about a specific system when you say "delivers" since that could have an ambiguous meaning, but certainly at the location of Earth, the energy delivered from the sun is primarily electromagnetic radiation. There are some electrons in the solar wind, but I think the EM radiation is far greater, unless there's a CME from the sun which as the name implies, can involve "mass" coming from the sun.
It's the electro magnetic field that delivers the energy and not the electrons working like little ping pong balls as the critics imagine it.
Originally posted by Arbitrageur
That's true about magnetic fields, but why do you say that's a mistake of mainstream cosmologists? Can you quote something from a mainstream cosmologist that highlights this mistake? I think they know this too, so I don't know what mistake you're referring to?
But I have no idea what critics you are talking about. critics of what?