It makes me uncomfortable how they’re laughing at and mocking people who are obviously just mentally ill.
Except they were. The genetic proof is everywhere, now that we’re able to read it.
Despite what I’ve said above, I don’t mean to discount the idea that certain natural catastrophes were large enough that groups in different areas all came up with similar stories to try to explain what happened because in fact they had all experienced the same thing.
This notion that we can “debunk” everything that a person ever said based upon their weakest claims is very problematic. There has never been a perfect theorist, and neither should we demand it. Making mistakes is part of the learning process.
The idea that cranks are the only problem we face ignores the problem of dogmatism in science, which is far harder to observe and recognize. There is no sense to focusing exclusively upon cranks without also talking about the dogmatism, for the public is caught in the middle of both threats. When cranks become the focus of the conversation, it tends to direct skepticism away from conventional theory. Some would call this pseudo-skepticism, for we have sufficient reason to be skeptical of all claims in science. Pseudo-skepticism is skepticism without philosophy; it’s ideologically-driven skepticism.
There are very likely mistakes within our theories. Those of us who read press releases with a critical eye and an awareness of at least another competing paradigm, and who understand what an ad hoc model is, can see that cosmology and astrophysics – in particular – are struggling to explain what we are observing. This is actually part of what keeps so many cranks coming to those disciplines.
If you and others want to think that a 4% universe is a success story, then be prepared to live with that until your time is up. Some of us think that we can do better by starting from scratch, with a paradigm which is designed to fit modern observations which Einstein and the others were never even aware of. A lot has happened in the last 100 years. You’ve never bought 4% of a product; so, why is it enough to base a worldview upon? The resources that have already been thrown at the dark matter/energy problems are really quite astounding.
Part of the value of the Internet is in the long tail. Science has a long tail just like commerce. There are some good ideas embedded into it. It’s not all nonsense. However, the mere thought of wading through it causes some people to simply reject the entire tail. And yet, many realize that the importance of the tail is on the rise. It’s what makes the Internet special, and it’s why the Internet disrupts business models. Rather than reject it’s introduction to the world of science, we should devise systems which facilitate its mining.
Cosmology is the most empirically-challenged discipline of science, and it frequently resorts to metaphysical (metaphysics = “beyond science”) claims to make its case. There is no sense to treating it with the same level of confidence as a laboratory science.
A creation event is no less a creation event just because it happened 14 billion years ago. Creation events placed into models eventually become fudge factors. Once they become accepted as beyond questioning, they will then predictably be adjusted as necessary to simply make the model work. How many times, for instance, has the date of the Big Bang creation had to be adjusted?
The bulk of the crank phenomenon is very possibly an artifact of a dysfunctional educational process which invites students to memorize science as a collection of unrelated factoids. When people immerse themselves within the concepts, history and philosophy of science, and learn how those concepts are related to one another, meaningful opinions are possible about highly complex subjects like cosmology and astrophysics.
Those who imagine that they can decide controversies without actually engaging them are using non-scientific methodologies to judge scientific controversies. The human mind is most fundamentally a difference engine; it judges ideas on the basis of how much they differ from existing beliefs. Prediction serves an important purpose; it keeps us alive and healthy. But, science is a process of evaluating claims without bias towards our gut instinct expectations. The process that so effectively keeps us alive can also interfere with our ability to judge scientific claims.
It’s absolutely vital that those who go to the effort online of disagreeing with a theory should have also put some reasonable amount of effort into understanding what the theory says. If you don’t have a pretty good idea about what is being claimed, then you have no meaningful way of actually knowing if the theory you’re arguing against is succeeding or not. Learning about only the conventional theories does not qualify you to disagree with a completely different paradigm, and arguing against every idea which disagrees with conventional wisdom is not a philosophical approach, because you are bound to eventually be wrong.
Agreement is really quite overrated. Uncertainty cannot be completely eradicated, and neither should we think that this is the goal within an uncertain domain like cosmology. Learning to live with uncertainty is imperative if we wish to possess accurate beliefs, for critical thinkers are tasked with considering and evaluating many different competing ideas. There exists value to both breadth and depth of knowledge. If you know about something that I don’t know about, I’ll listen to you talk about it.
Do people really consider these to be the signs of somebody who has lost touch with reality? If the BoingBoing community prefers to align itself with whatever is conventional in science, so be it. I’m not here to force myself upon people. I’m here to critically think about science.
Well… they’re trying to upend all of biology, proving that Darwin was an idiot and they alone have the truth, and it’s usually accompanied by a persecution complex. So yes, ID qualifies by that measure. They’re not trying to rewrite physics only because they don’t care what physics says; rewriting biology and biochemistry is sufficient to their cause.
Just in case anybody thinks HannesAlfven may have something behind him when he tries to argue for plasma cosmology (and when he argues against nonbaryonic dark matter, although he cloaks it in the term “the 4% Universe”), he is, in fact, a crank, his claiming that there needs to be some balance between worrying about cranks and worrying about dogmatism is exactly the same thing as the climate denier insisting that there be balance between scientists who accept anthrogenic climante change and those who don’t. (Hint: there’s no balance. Nearly everybody who has thought about it seriously accepts the evidence for climate change, and those who don’t are a fringe minority. It’s the same thing for dark matter and standard cosmology.)
It’s not worth repeating all the evidence here, but if you’re interested in finding out why the “Electric Universe” and all of that is in fact a crank theory, and not a real theory, I point you to the following posts on Tom Bridgman’s blog, which does a nice job of summarizing some of the seirous problems with those notions:
It’s worth reading around his blog; he has other good information there about why EU theorists and such are not keeping up with science, and why they aren’t actually viable alternatives, the way folks like HannesAlfven claims.
Here’s another link from Tom Bridgman’s blog:
This one does the best job of summarizing why EU is not actually a viable theory.
Finally, if you’re interested in learning why it is that modern science believes that Dark Matter is assuredly real, I point you to couple of things:
Convincing a Young Scientist that Dark Matter Exists, from Ethan Siegel’s excellent blog.
How We Know that Dark Matter Exists, video of an online talk I gave several years ago in Second Life.
Yes, you’ve found a handful of critiques. There are also many critiques of conventional theories. The most controversial thing here is your claim that – despite the fact that critiques exist on both sides – that this is nevertheless not a controversy.
We can get a better idea of the depth of thought that you’ve put into this by taking a closer look at one of your sources, while asking the question: How many additional controversies are you failing to mention for your audience?
From your source, “Convincing a Young Scientist that Dark Matter Exists”:
A classic example is Einstein’s theory of gravity, general relativity.
The big idea was that matter and energy curved spacetime, and that
this curved spacetime was the cause of all the effects we attribute to
But it didn’t just explain all of the things that the old theory,
Newton’s gravity, explained. It also predicted an anomaly in Mercury’s
orbit, which had been observed but was hitherto unexplained. But
additionally, it also made a brand new prediction: that near very
massive objects, starlight would appear to bend!
This is unfortunately the textbook story of what happened. The more nuanced historical story which philosophers debate involves an additional photographic plate which was in conflict with Einstein’s prediction.
I learned how to measure the distances to different objects, both in
and out of our galaxy.
It’s worth pointing out that parallax only works to 1% the diameter of the Milky Way. Everything beyond that is inferred based upon the principles of the paradigm itself – in this case, redshift.
The conclusion drawn from that? The more distant objects were, the
faster they were receding away from us.
This seemed to be the story until it turned into a controversy. The documentary, “Cosmology Quest”, on YouTube runs through a small snippet of the timeline surrounding Halton Arp’s claim to discover all sorts of problems for the theory.
Although many alternatives are plausible based on Hubble expansion
alone, the Big Bang was the theory that made the correct predictions
for phenomena like the Cosmic Microwave Background and the abundances
of the light elements, while the alternatives fell by the wayside.
The idea that the CMB can only be explained with one paradigm is an extraordinary claim which Fred Hoyle went out of his way to disagree with …
“There is no explanation at all of the microwave background in the Big
Bang theory. All you can say for the theory is that it permits you to
put it in if you want to put it in. So, you look and it is there, so
you put it in directly. It isn’t an explanation.”
Jean-Claude Pecker agreed …
“Actually, the 3 degree radiation, to me, has not a cosmological
value. It is observed in any cosmology: in any cosmology you can
predict the 3 degree radiation. So it is a proof of no cosmology at
all, if it can be predicted of all cosmology.”
These would seem to be important arguments that have been completely left out here.
According to dark matter, there’s a diffuse, massive halo around every
gravitationally bound structure, while according to modified versions
of gravity, the laws only become different at very small
Both versions provide an explanation for rotating galaxies, and to be
completely honest, the modified gravity version is slightly better at
that. But how do we decide which one’s right?
If gravity is not the fundamental force, then neither is the case. That is the case being made by the EU: that filaments of plasma can exert an incredible force upon the surrounding matter, as a consequence of conducting charged particles. This is explained in depth within the Electric Universe Essential Guide. These are not exactly cosmological ideas; most of these ideas stem from observations which have been made within the plasma laboratory. Comparisons of large-scale plasma discharges to much smaller activity within Tokamak’s suggests that plasmas simply scale over enormous magnitudes.
Second, we can look at the large-scale galaxy distribution. How do
these galaxies cluster? There seems to be not enough mass to produce
the structures that we see, unless we either include dark matter or
Actually, many people have noticed the similarity in the large-scale universe structures to that of neuronal networks within the brain – and possibly for good reason.
So I was in favor of dark matter, but I wasn’t entirely convinced. I
wanted a “smoking gun” piece of evidence for dark matter. Something
that was an entirely new prediction that we could look for — much like
that 1919 eclipse was for general relativity — and decide whether dark
matter predicts what we’re going to see.
The author then goes on to describe the bullet cluster inference for dark matter.
Let’s take a look at what the mass — due to observations of
gravitational lensing (a verified prediction of general relativity) —
is telling us […]
This only works if there’s some extra type of matter that doesn’t
smash together and collide like normal matter (i.e., protons,
neutrons, and electrons) does.
The author is making an incredible claim that there exist no unconceived alternatives, and to make that claim, there is a very delicate chain of cosmological claims which must each be individually true from start to finish – including galactic collisions, dark matter, gravitational lensing (which oftentimes, in turn, requires dark matter), as well as the notion that redshift is necessarily a reliable measure of velocity and distance. We are being asked to accept an elaborate, delicate structure of hypotheses as though it’s the result of experiment.
Left completely unmentioned is the alternative Arpian view for why lensing is invoked in the first place, from http://www.thunderbolts.info/tpod/2006/arch06/060904bulletcluster.htm …
The Big Bang, which fails to take the electrical properties of plasma
into account, assumes that redshift must be an indicator of distance.
As a result, it projects the high-redshift filaments and arcs far into
the background. In order to account for the association of these
features with foreground galaxies, gravitational lensing must be
invoked to “explain away” the number of features as multiple images of
only one “distant” QSO.
There is enormous danger to building an elaborate theoretical structure, failing to inform your audience of the alternatives which are presented by critics, and then pretending that this is no different from doing laboratory experiments by failing to use words like “theory”, “hypothesis” or “interpretation”. The fact is that conventional thinkers desperately need critics to point out the controversies that they themselves have ignored.
This piece you’ve presented is exactly the kind of pseudoscientific journalism that the Thunderbolts group have very successfully warned the public of. We will simply not get to accurate theories in cosmology through this type of journalism. We must acknowledge the controversies where they exist, so that critical thinkers can make up their own minds.
Wait, is that one on the poster?
I’m eager to hear more. Please go on …
Nice read: Langmuir’s “Pathological Science” lays it out cleanly and concisely. Go to http://www.cs.princeton.edu/~ken/Langmuir/langmuir.htm
Ah, yes, " teach the controversy". Where have we heard that before?
Actually, “teaching the controversy” is more-or-less the basis for an entire education reform movement called computer-supported collaborative learning (CSCL), which advocates the construction of online systems which help people to better navigate complex controversies. When a subject becomes incredibly complex, I’m not quite sure that there exists an alternative which can support the formation of critical thinking (?). People need to be permitted to formulate their own meaning and opinions once arguments become sufficiently complex. That’s actually part of the message we see coming from the constructivist education reform movement.
Contrast that with Tom Bridgman’s approach, which is to convince people that since he has already determined for himself that the theory must be wrong, that the reader should not even bother to learn the Electric Universe. People generally use his website – which is strangely titled “Dealing with Creationism in Astronomy” – for the purpose of convincing others to be ignorant with them on the theory.
Is this the solution you’re looking for?
Bridgman’s fans seem to already be looking for a reason to avoid learning the theory and the arguments. They would rather somebody save them the effort of listening to both sides. The fact that there are rebuttals (by Don Scott) and then rebuttals to those rebuttals (and so on) should clue most people into the plainly obvious observation that this fits the concept of a controversy.
My guess is that many people simply get lost in the debate, become frustrated, and then give up. Probably many of those people do not actually understand what Bridgman was arguing in many instances, and I’m willing to bet that that is probably fine with Bridgman. Typically, when students don’t understand science, it’s considered the fault of the student. They must just be stupid. It seems that nobody stops to wonder if perhaps the arguments need to be presented better.
The critical thinker might begin to wonder if the apparent failure of the Internet to support complex debate might actually be having an influence upon peoples’ decisions to place faith in conventional theory which extends beyond their actual knowledge. The public, in that scenario, would generally tend to side on the “safe bet”, and that would tend to reduce the numbers of critics the scientists face in a general sense. If critical thinking was actually far more common than we see today, the education historian John Taylor Gatto has argued that at a certain point, this could actually become a destabilizing force for society.
There is a very thoughtful commentary on the “reasons for crankery” at http://www.ebtx.com/oats/cranknet.htm …
(bold is my own emphasis …)
The advancement of science requires - absolutely - what I call
“forced” induction (as opposed to “free” induction - what animals do).
This requires that you go off on your own to think independently. The
extent to which you “go off alone” determines whether you will become
an acceptable scientist or what you call a “crank”. Unfortunately, the
originality of your ideas is tied inextricably to the measure of your
Other people act as guides and supports (a frame of reference) upon
which you can rely to “set you straight” when you stray into the realm
of the “illucid”. As I have said, “Self delusion is the bane of
induction”. I know this to be true from extensive personal experience.
It is a real struggle to keep one’s thoughts on track without the
assistance of other readily available opinion.
Thus, if a scientist at Cern has a really bad idea, he may mention it
to a colleague who says, “Did you slip on a bar of soap in the shower?
Don’t you remember the “X” factor we were just talking about last
week?” And then the first guy says, “Oh yeah, I forgot about that.
Forget it.” Now he’s back on track in less than ten seconds.
Someone alone however, may struggle for weeks in the same situation,
unable to see a simple thing that another disinterested person would
notice immediately. He may pursue the wrongheaded matter to some new
bizarre conclusion and believe that he has found the Holy Grail. And
the more effort he has put into it, the less he will be willing to
give it up.
Therefore, if you go off alone you tend to become a “crank”… but if
you remain with the herd you tend to discover nothing new, i.e. and
become a “pundit”.
There is a Gaussian distribution here.
There are perhaps five or six thousand individuals who actually try to
do “forced induction” at the highest level. Half of them fall on the
left 'crank" side of the distribution and half fall on the right
“pundit” side. Each half needs the other.
You could make the case that the “extremes” ought to be cut off. But I
would say, “Who is to decide the cutoff point?”. I certainly wouldn’t
want to make such a momentous decision. Hence, I don’t criticize other
people’s stuff in general since I understand how difficult it is to
produce anything at all.
The same applies in the larger sense to wide groups of individuals. If
the “ship of science” (or one of its smaller boats) decides to drop
anchor and wait for the truth to come to it … they will stagnate and
you will find that many more “cranks” pop up to point out the paucity
of perpendicular progress … at the same time offering new and
evermore bizarre solutions to present problems.
This is actually the present situation. The physics establishment has
decided that they can proceed by experiment alone (data gathering) and
that the data will tell them what to “induce” next.
In fact, it will.
But this is the method of the animal population … free induction. It
is highly accurate but it takes forever to get where you want to go.
Hence, humans have opted for “forced induction” (they try everything
and see what works … fast progress with lots of mistakes). So their
relative stagnation has engendered a new “raft” of adventuresome
It really doesn’t matter though
As long as a free exchange of ideas is possible (in the political
sense), then I don’t see any need to protect anyone from either new
ideas or stultifying academia. The truth will win out easily and
eventually in an open forum.
You might think that you’ve managed to steer clear of the problem of crankism, but if society as a whole decides that crankism is the only real problem which must be solved in scientific discourse, then the ship of science can easily veer down a wrong path and end up in a stagnant harbor. Eventually, we’ll all die, and pass the remaining problems of science on to the next generation.
Success involves taking chances. Creativity in science is not a tumor which needs to be cut out. It’s the underlying force of change and progress which we must perfect in order to solve the most complex problems we face in science.
There is a different between trying new things – which real and respectable scientists do all the time – and continuing to beat the drum of a long-discredited idea (plasma cosmology) or an idea that was never worthwhile and that could be dismissed on the face of it in the first place (Velikovskian catastrophism).
It’s not worth inviting students to read and learn about plasma cosmology, because it will take them nowhere. It’s a dead end, something that doesn’t work and doesn’t have anything to offer. We have them learn a little about Aristotelean physics because that’s their intuition, and they need to learn that their intuition will lead them astray, and that they have to train themselves out of Aristotlean thinking. But there’s no need to teach them about plasma cosmology, or any of the other huge variety of other ideas that have been out there (better and worse) as alternatives to what has worked, if your goal is to help people share our best understanding of the Universe. Were plasma cosmology a viable alternative, then, sure, but it’s not. It’s just a waste of time. The only reason people like Bridgman deal with it (and with creationism in astronomy) is because there are people out there still selling creationism, and still selling plasma cosmology, and other people come along and get sucked in by it. I’ve seen some of my students stumble across a website or a YouTube video and think that there might be something to this plasma cosmology stuff. It’s a trap, that leads people astray, because it’s all very sexy and well-presented. As in any other field, there is a lot of wrong stuff on the Internet. While it’s pretty clear to an astronomer like me where plasma cosmology falls down and why it’s not worth the time, it’s not clear to students or to members of the general public. Hence, the only reason to tell them about it is to warn them about it-- innoculate them from it, as it were-- in case they stumble across it and may get sucked in by it.
Hey, these kooks are giving natural philosophy a bad name!
Up until now, I’ve occasionally described myself as a natural philosopher, in order to emphasise my general, holistic interest and lack of specialisation, but I’m not sure that’s a good idea anymore… I certainly wouldn’t anyone to get the wrong of this stick.
Well, to be honest, the way in which we educate astronomers and astrophysicists today basically deprives them of the opportunity to make a decision about their own personal beliefs on this issue. When a student is basically told to learn this very lengthy series of compounding speculations – or, hey, you can alternatively just drop out of the program, with devastating consequences – at what point have they willingly bought into the ideas? I think – given the extraordinary evidence which is constantly accumulating on this important issue from such an incredible diversity of sources – that the public has every right to question the very meaning of the various consensuses that we observe within these disciplines.
At some point, learning to “think like a scientist” in the physics PhD program came to also involve adopting a very specific worldview about how the universe works in order to fit into the culture of astronomers and astrophysicists whose ideas – conveniently enough – already dominated that culture. This is really not that complicated to understand, and the fact is that I’m not at all the first person to say it.
Check out the YouTube interview of Peter Woit titled “Piling Conjecture Upon Conjecture”. At 12:27, the transcript reads …
“Our fundamental problem with unification is that a certain number of
ideas have been tried out which all have well-known problems – and
string theory is now one of them. But there’s a lot of things that
haven’t been tried … If you start to get to know the subject, you
realize the number of people working on the subject … It’s a fairly
limited community. It’s a few thousand people … And … most of them
are kind of following the lead of a fairly small number of people.
The number of actual different ideas that people are trying out is
actually quite small … There’s a much larger array of ideas out there
which nobody has taken the time to look into because the way the field
works … These things are very difficult. You would have to go spend
several years of your life doing this, and if no one else is
interested in what you’re doing (and most likely, whenever you’re
trying out new ideas, it’s not going to work anyways). The way the
field is structured, it’s kind of very very hard to do that kind of
work, because it’s likely to damage your career. If you’re trying to
do it when you’re young, you’re gonna very well end up not having a
Jeff Schmidt’s book, Disciplined Minds, makes a very similar claim. Neither of these guys have anything to do with the Electric Universe, nor with each other, btw. From http://www.julesnyquist.com/articles/article/1430100/16489.htm …
MR: When you first thought of writing this book, you were in graduate
JS: Yes, that’s right. I got interested int he topic when I was going
to professional training myself, getting a PhD in physics at the
University of California, Irvine. It seemed like the best of my fellow
graduate students were either dropping out or being kicked out. And by
‘best,’ those were the most concerned about other people and seemed
less self-centered, less narrowly-focused, most friendly people…they
seemed to be handicapped in the competition. They seemed to be at a
disadvantage not only because their attention was divided, but because
their concerns about big picture issues like justice and the social
role of the profession and so on, caused them to stop and think and
question, whereas their unquestioning gung-ho classmates just plowed
right through with nothing to hold them back. As I mentioned, there’s
about a 50% drop-out rate for students entering University programs in
all fields; and what I found was that this weeding out is not
politically neutral. To put it bluntly, the programs favor
Fred Hoyle from the Cosmology Quest video, who again – for those that don’t know – had no affiliation with the Electric Universe …
I’ve always said that the cause of the trouble is the American
graduate school … You see, when we had graduated first degree, we
were independent. We could thumb our noses at the professor. And in
fact the best way to get ahead was to do something that all the people
didn’t agree with … But, in the graduate school, you all have to
learn what the professors are teaching you. And then, those people go
out and get jobs and they go to their own graduate school … You get
a few places like CalTech or like Harvard, and they set the fashion
for [all the rest] …
You can continue to propagate the false image for people here that astronomers and astrophysicists actually choose their beliefs irregardless of the culture inherent to their discipline, or we can have the more productive conversation regarding how to fix this insane system which deprives our most talented physics specialists from the right to actually diverge from conventional wisdom.
The well-being of the discipline that we both love is on the line. Is this another problem that we’ll simply punt to the next generation?
This is certainly the conventional view. But, the question is: Do the students of physics arrive at their views on these topics on their own accord, after digging into the arguments, evidence and history? Or, are certain key details which might alter a student’s educational trajectory simply left out of the picture painted for them? To what extent are physics students told to simply learn how to solve these particular problems, even when “real scientists” have disabused themselves of the methodology? And what impact, over time, might the repeated filtering of this kind of context have upon the students’ ability to question the validity of the things they are memorizing?
A relevant case in point is the story of Hannes Alfven. From David Talbott’s excellent biography of Alfven in Edge Science titled “The Plasma Universe of Hannes Alfven” …
Through much of the 19th and 20th century, most astronomers and
cosmologists had assumed the “vacuum” of space would not permit
electric currents. Later, when it was discovered that all of space is
a sea of electrically conductive plasma, the theorists reversed their
position, asserting that any charge separation would be immediately
neutralized. Here they found what they were looking for in Alfvén’s
frozen-in magnetic fields and in his magnetohydrodynamic equations.
Electric currents could then be viewed as strictly localized and
temporary phenomena—needed just long enough to create a magnetic
field, to magnetize plasma, a virtually “perfect” conductor.
The underlying idea was that space could have been magnetized in
primordial times or in early stages of stellar and galactic evolution,
all under the control of higher-order kinetics and gravitational
dynamics. All large scale events in space could still be explained in
terms of disconnected islands, and it would only be necessary to look
inside the “islands” to discover localized electromagnetic events—no
larger electric currents or circuitry required. In this view,
popularly held today, we live in a “magnetic universe” (the title of
several recent books and articles), but not an electric universe. The
point was stated bluntly by the eminent solar physicist Eugene Parker,
“…No significant electric field can arise in the frame of reference of
the moving plasma.”
But the critical turn in this story, the part almost never told within
the community of astronomers and astrophysicists, is that Alfvén came
to realize he had been mistaken. Ironically—and to his credit—Alfvén
used the occasion of his acceptance speech for the Nobel Prize to
plead with scientists to ignore his earlier work. Magnetic fields, he
said, are only part of the story. The electric currents that create
magnetic fields must not be overlooked, and attempts to model space
plasma in the absence of electric currents will set astronomy and
astrophysics on a course toward crisis, he said.
Alfven gave his Nobel lecture in 1970. And yet, we still see papers written by people who exhibit no affiliation to the theories under discussion, that criticize the ways in which the MHD equations are being applied.
From “Why Space Physics Needs to Go Beyond the MHD Box” by George K Parks in 2004:
Magnetohydrodynamic (MHD) theory has been used in space physics for
more than forty years, yet many important questions about space
plasmas remain unanswered. We still do not understand how the solar
wind is accelerated, how mass, momentum and energy are transported
into the magnetosphere and what mechanisms initiate substorms.
Questions have been raised from the beginning of the space era whether
MHD theory can describe correctly space plasmas that are collisionless
and rarely in thermal equilibrium. Ideal MHD fluids do not induce
electromotive force, hence they lose the capability to interact
electromagnetically. No currents and magnetic fields are generated,
rendering ideal MHD theory not very useful for space plasmas.
Observations from the plasma sheet are used as examples to show how
collisionless plasmas behave. Interpreting these observations using
MHD and ideal MHD concepts can lead to misleading conclusions.
Serious objections have been raised from the beginning of the space
era about the application of MHD theory to collisionless space plasmas
(Chamberlain, 1960; Lemaire and Scherer, 1973; Heikkila, 1973, 1997;
Alfvén, 1977; Scudder, 1997; Lui, 2001; Song and Lysak, 2001).
Although it is well-known that MHD theory is applicable only to a
restricted class of plasma problems of which collisionless plasmas are
not a part (Krall and Trivelpiece, 1973), MHD and ideal MHD theories
have been used in space without due regard to these restrictions. MHD
theory is useful in the lower ionosphere and lower solar corona where
plasmas are collision dominated. However, plasmas in the solar wind
and magnetosphere are collisionless […] MHD theory will not describe
the physics of these plasmas correctly.
Another issue in space physics is treating MHD fluids as ideal
(Parker, 1996). Ideal fluids have infinite conductivity (zero
resistance) and the implicit charge mobility prevents them from
supporting any electric field. The ideal fluid was originally
conceptualized by Alfvén (1953) to study how MHD waves would behave if
conductivity were imagined to be infinite. In such an ideal limit,
magnetic fields would become frozen in the fluid. However, the
frozen-in-field concept requires the strict criterion E · B = 0 which
is not always satisfied in space (Alfvén and Fälthammar, 1963; Alfvén,
1977; Fälthammar, 1989).
It seems to me that the “long-discredited idea” is the ways in which these cosmic plasma models continue to be applied. Unlike the “new things – which real and respectable scientists do all the time”, there is no risk that we might be wasting our time by modeling one of the universe’s fundamental states of matter more accurately, and in accordance with our observations of laboratory plasmas. This is not a gamble, and there’s very little mystery about the implications for some of us.
Urgh. I saw this post right after sending an email to a local science professor that I knew bordered on the cranky (I even admitted in the text, half-jokingly: the difference between a crank and an eccentric is usually money. Eccentrics have more and that buys some deference that cranks are denied ). Haven’t heard from him, strangely enough.
I wasn’t talking about perpetual motion or reinventing the turbine, thank goodness.
It’s plain to see that many people on the Internet think that cranks are strictly a nuisance, and that the world would be better off without them. But, what these people appear to not realize is that “outsider amateurs” have already generated an enormous amount of important science and technology (See the book, It Doesn’t Take a Rocket Scientist - Great Amateurs of Science). And not only that, but we’re talking here about some of the most radical and reputation-threatening innovations in the history of science. They did their work oftentimes in the face of intense daily ridicule from authority, friends and even family. I’m skeptical that we’d even be having this conversation right now if there was a more widespread awareness of those stories, because these tend to be stories of people overcoming extreme adversity in order to make the world a better place.
The problem of the crank has been improperly defined. The problem of the crank is not that they exist and annoy others; the problem of the crank is that they are cognitive explorers who have yet to find their digital homes. While others choose to spend their time watching television or Facebook’ing, these people get bored if their mind is not engaged in some idea. To become annoyed with them misses the larger picture that they simply need a place to go online where their talents can be perfected; where they can collaborate with one another and basically learn from others who have a similar interest; and where they can be molded into people who can make useful contributions to the world of science.
Put in other words, we need knowledge technologies which are designed to produce economic benefits as well as job creation, using the pre-existing pool of resources. Oh wait, that would seem to more-or-less be the definition of a knowledge economy …
The problem with science education which we are finally (seemingly) emerging from is that of education based upon one-way communication. The role of computers in science education is already undergoing a significant transformation: The traditional notion of teachers giving a one-way monologue which focuses almost entirely upon how to solve the homework problems is probably at this point on the way out as a model for science education.
Notice that this is largely being imposed upon the universities. If the existing professors had their way, they would continue to focus upon generating more research papers instead of better teaching – and that is in spite of the fact that there are already too many papers for people to review (There is a lesson to be learned here).
If science education research and big data trends are any clue, instruction is going to trend towards lessons that are customized to the students’ existing knowledge and skills. In theory, these sorts of systems could turn cranks into specialists.
Instruction based upon teaching scientific modeling in public school science programs is proving to double conceptual comprehension (as measured by force concept inventory testing). We’ll likely see more of it, and I predict that this will ultimately have a very grounding influence upon peoples’ beliefs about modeling and its role in science. It will also help people whose goal is to create new theories – such as cranks.
Concepts-based instruction has a very strong track-record. The edupreneurs will eventually notice the work of Joseph Novak, and there will accordingly emerge a competition to visualize the concepts and controversies of science. This will be especially helpful to those who wish to do interdisciplinary synthesis or theory creation.
Science education has a very bright future, largely because these force concept inventory (FCI) tests finally give education researchers a quantitative measure for determining whether or not a particular pedagogical technique is actually having a positive effect. Much time has been wasted debating various approaches to science education. It’s now finally possible to simply compare competing pedagogical systems using a uniform standard (the FCI).
Every single one of these changes portends a terrific future for cranks.
Cranks are simply people that are not willing to leave their educations up to others to figure out. For whatever reason, they believe they can do better. As a society, we’d be wise to simply help them out. This is free labor, people. Let’s create spaces online that take this cognitive energy and convert it into new and better scientific theories. It’s obviously a challenging problem to solve, but if just 1 of 10,000 cranks online turned out to be right, then a system designed to help them to elaborate their ideas, which scales, would be completely worth the effort – and in short time.
In one of Charles Ginenthal’s books, he told the story of the “Village Venus”. It’s basically the idea that a small boy living in a remote village will tend to consider the single girl his age the most beautiful girl on the planet. Then, one day, he’ll for the first time go to the city, and realize that he was being silly.
In this current incarnation of the Internet, we are all living with Village Venus syndrome in some regard. There is just far too much information out there for each of us, as individuals, to wade through it all. And these ideas are oftentimes in cryptic, highly mathematical formats, or dispersed in a thousand different places online. We are desperately seeking out ways to filter the bad and save the good. The problem is that if we aren’t conscientious with how we do this filtering, we can easily filter out the science which people do because they love it, leaving nothing but the science which corporations and governments do because we’re paying them money. Those two different approaches tend to generate very different science and technology.
The cranks do it because they love it. Be very wary of just throwing that away.