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Natural Science Forum / Physics / Particle Physics / September 2004



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The Brilliance of Our Teacherst

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Mapssiwq - 13 Sep 2004 14:40 GMT
The Brilliance of Our Teachers
   
     A recent newspaper question and answer column raised an interesting
subject. The query noted that, for a science course at a local school, there
were two instructors. One of those instructors explained the concepts clearly
and his students did well on standardized tests. The other instructor's
teachings were scattered and his students performed poorly. The students,
however, believed that the second instructor was brilliant and thought that his
explanations are simply over their heads. The query went on to ask why such a
misperception occurred.

    The answer given was that both groups were easily misled into believing
that mysterious people are highly intelligent. When those listeners heard
material they didn't grasp, they assumed that the fault was theirs and not the
teachers. And, since the listeners considered themselves fairly intelligent, it
was obvious that the teacher must be brilliant! (Lest there be a
misunderstanding, the reference is not to High School Teachers teaching
adolescents, it is to Graduate School Professors teaching PhD candidates.)

    Judging from the material posted in these Newsgroups, the effect would
seem to be quite pronounced. It is quite plain that the posters ardently
believe in the validity of what they have been taught. It is also quite obvious
that they are aware, if only sublimely, of the inconsistencies and
contradictions within that teaching. If that were not the case, the subject
matter would be straightforward by now, the understanding of modern physics
would not be so muddled, and the postings would not suggest such a high level
of misunderstanding.

    The truth of the matter is that the subjects, relativity in particular,
seem mysterious and contradictory for one basic reason. The teachers of the
subject do not themselves understand it. Because they don't understand the
subject they hide behind sophisticated, often unnecessary and sometimes self
contradictory mathematical explanations to prevent that lack of understanding
from being apparent. In order to achieve this goal they have made Physics into
the only Science where MECHANISM is not considered. This is illustrated by a
quotation from Dr. Hawking who exclaimed, in an interview, that he was only
interested in mathematics and observation and in the correlation of the two
approaches. He didn't care about "reality" (for which we may read mechanism)
because he didn't know what reality was. This is unfortunate because the
present practice of ignoring mechanism, and overlooking the fact that nothing
is known until observation, mathematics and understanding of mechanism are in
agreement. Without such an agreement an understanding of the process(es)
involved is not assured. It is only when all three requirements have been met
that we can have any hope of knowing "who is doing what to whom".

    Even more important, without including mechanism in our understanding
matrix, we eliminate a vital check on validity. The mathematics of many
processes extends to regions which are physically unrealizable. Without
considering mechanism these "empty" regions will not be recognized. An example
of the effect is the idea that "virtual photons" can explain forces which act
at a distance. "Virtual photons" can easily explain repulsive forces acting
between material particles, but they can not be used to explain attractive
forces. The same is true of "gravitons". They cannot produce the attractive
force of gravity! "Virtual particles" can only produce repulsive forces. An
understanding "mechanism" reveals this deficiency quite clearly.

    To put the relativity concepts into perspective, the current orthodoxy
accepts the validity of the idea that there are no absolutes. Length is what
yardsticks measure and time is what clocks measure. What is conveniently
overlooked is that the forces existing between the atoms in a yardstick and the
hairspring of a clock escapement (or their conceptual equivalents in actual
test equipment) must be electromagnetic in nature. Not only is electromagnetism
the only known candidate for these forces, the need for them follows if the
questionable idea of modern physics that interatomic forces are produced by the
exchange of "virtual photons" is not to collapse instantaneously. In addition,
the speed of a clock is affected by the mass of its balance wheel (or
equivalent) as given by M=E/C^2 and the stiffness of the forces between the
nuclei of the "hairspring" (or equivalent). Since all of the preceding are
functions of the velocity of light in the local reference frame, it is rather
foolish to make the assertion that length is what yardsticks measure and time
is what clocks measure without taking into account the effect that possible
changes in the actual velocity of light might have on them. Such changes may be
concealed by relativistically induced changes in the atomic spacings,
stiffnesses and inertial masses of our instruments When one does take these
considerations into account, the Principle of Relativity and the invariance of
the local velocity of light follow at once for the simple reason that matter
must be using the local "en vacuo" velocity of light to control its parameters.
A physicist who does not recognize this instinctively is clearly in the wrong
line of work. (I understand Wal-Mart is hiring.). One does not need to resort
to the sophisticated and to a large degree defective teachings of an arrogant
intellectual elite Once the basics are recognized, the understanding of the
process involved do not require advanced mathematics, they are within the
capabilities of a bright high school physics student.

    The source material for this posting may be found in "Gravity" (1987),
"The Einstein Hoax" (1997), and "Corrections to Residual Errors in Special
Relativity (1999) located at http://www.members.aol.com/einsteinhoax/site.htm .
EVERYTHING WHICH WE ACCEPT AS TRUE MUST BE CONSISTENT WITH EVERYTHING ELSE WE
HAVE ACCEPTED AS TRUE, IT MUST BE CONSISTENT WITH ALL OBSERVATIONS, AND IT MUST
BE MATHEMATICALLY VIABLE. PRESENT TEACHINGS DO NOT ALWAYS MEET THIS
REQUIREMENT. THE WORLD IS ENTITLED TO A HIGHER STANDARD OF WORKMANSHIP FROM
THOSE IT HAS GRANTED WORLD CLASS STATUS.

    All Newsposts by this Website are available at
http://www.members.aol.com/postinglog/newspostings.com

    Please make any response via E-mail as Newsgroups are not monitored on a
regular basis. Objective responses will be treated with the same courtesy as
they are presented. To prevent the wastage of time on both of our parts, please
do not raise objections that are not related to material that you have read at
the Website. This posting is merely a summary.

    For a response send E-Mail to einsteinhoax@aol.com

    The material at the Website has been posted continuously for over 5 years.
In that time THERE HAVE BEEN NO OBJECTIVE REBUTTALS OF ANY OF THE MATERIAL
PRESENTED. There have only been hand waving arguments by individuals who have
mindlessly accepted the prevailing wisdom without questioning it. If anyone
provides a significant rebuttal that cannot be objectively answered, the
material at the Website will be withdrawn.
Paul Draper - 15 Sep 2004 18:28 GMT
> The Brilliance of Our Teachers
>      
<snip>
>      The answer given was that both groups were easily misled into believing
> that mysterious people are highly intelligent. When those listeners heard
[quoted text clipped - 3 lines]
> misunderstanding, the reference is not to High School Teachers teaching
> adolescents, it is to Graduate School Professors teaching PhD candidates.)

A superb physicist (Feynman) also once said that if you can't explain
something in a way that your grandmother would understand it, then you
don't understand it. Whether students feel the same way about the
person doing the explaining is, in my opinion, immaterial.

<snip>
>      The truth of the matter is that the subjects, relativity in particular,
> seem mysterious and contradictory for one basic reason. The teachers of the
[quoted text clipped - 7 lines]
> approaches. He didn't care about "reality" (for which we may read mechanism)
> because he didn't know what reality was.

A really good physicist understands the value of both physical
intuition (what you call MECHANISM) and rigorous formalism, and uses
one to check against the weaknesses of the other all the time. A
conceptual picture can turned into definite, experimental predictions
with the aid of a mathematical construction and a following
calculation. Otherwise, something that seems to be plausible
conceptually can turn out to be ruled out after calculation. Likewise,
a mathematical construction can look quite pretty, but if it doesn't
have a conceptual underpinning or rationale that makes physical sense,
then it's just a construction without basis in reality. The problem
is, with which approach do you reach forward when you are at the edge
of knowledge? Which comes first, the formalism or the conceptual
insight? Hawking is saying that, where he is working, the mathematics
is more reliable than physical intuition for reaching forward.
However, that doesn't mean that the mathematical model won't be held
up to conceptual verification at some point.

Your insistence that virtual particles cannot "pull" is due to an
unwillingness to use both tools, math and insight, to figure out
whether that's really true -- much the same way that many, when SR
suggested that space and time are not really distinct, thought to
themselves, "Rubbish. Of course they're distinct."

PD
Plehqw - 16 Sep 2004 15:05 GMT
Your analysis is faulty. Mathematics is only useful to analyze a postulated
mechanism. Without such a postulate, the mathematics are meaningless. They
cannot be used as a lead mechanism.

As to your assertion that mathematical treatments can explaiin how "virtual
photons" can produce an attractive force, it is clear that you have never
understood physics. They cannot produce an attractive force because the
momentum exchange is wrong. Their only legitimate role is analogous to the
virtual force which allows a bicycle to be ridden. Just as the bicycle requires
the "virtual force" to be applied to the substrate represented by the road, the
force exerted by "virtual photons" requires a substrate such as the classical
Aether for them to apply their forces. In both cases the substrate supplies the
actual forces.

It is very tedious to reply to people like yourself who hgave never really
learned physics and who have been deluded into thinking that mathematics is a
substitute. It is even more tedious to be lectured by fools like yourself!

Einsteinhhoax@aol.com
Paul Draper - 16 Sep 2004 20:05 GMT
I'm going to respond, though my initial reaction is
not to. I don't normally respond to those who accuse
complete strangers of being fools and make assumptions
about their understanding and/or training in physics.
Courtesy and human-to-human manners will, in the end,
be more important to your legacy than your ideas about
physics, I'll predict. I think you can do better, and
I'd ask you to try with me.

I believe you are wrong that mathematics can only help
once you have a postulated mechanism. In practice --
and I do mean "how it's done" -- theorists will start
with a postulated mechanism, find a mathematical tool
that allows them to make firm predictions and to make
a rigorous structure to avoid making mistakes. But
then, just as likely, the mathematic tool will be
linked to a related mathematical result or tool, and
the physicist will ask, "Can this other bit of related
math tell me something about the physics that I didn't
see before?" And this is how physical intuition can
spring from the math. As long as the intuition is
verifiable, there is nothing wrong with this approach.
I never, never said that mathematics is a substitute
for physical intuition. I only said that it is often
as powerful a tool, and that the two of them are
effectively used in tandem, often one bootstrapping
the other, when doing good, solid research.

I'm telling you, this is how it's done, and it works.
You may say it's foolishness to do so, and then the
argument dissolves not into what physics is correct or
incorrect, but what is the right way to do science? If
this is what you're really after, then perhaps you
should demonstrate, in multiple disciplines, why it's
not a consistent way to approach it. Be careful! The
act of doing science is a method, not a truth in
itself. If you say that your approach is a priori the
correct way, then you've accomplished nothing.

As for your example of riding a bicycle, I think I
know what forces are involved, and there are no
virtual forces required at all. First, you'll have to
define for me what you think a virtual force is, and
why they would have value in explaining something as
simple as riding a bike (as opposed to real, tangible,
object-acting-on-object, forces), and for that matter
what the virtual force is. The force acting between
the tire of a bike and the road is the contact force
between them, sometimes broken up into the "normal"
(meaning "perpendicular) force that prevents mutual
penetration, and friction that results in the forward
motion.

PD
10of100 - 21 Sep 2004 16:52 GMT
I think what you've written shows us the pitfalls of being human, as
living beings we tend to be very subjective. A scientist, to be
effective at uncovering hidden facts, has to limit his or hers
subjective tendencies as much as possible and let the "results speak
for themselves" or end up with results that are skewed and worthless.
As anyone can tell, sci.physics forums show us alot about what is
worthless. Many of the theories that modern physics rely on have been
tested, time and again, and the ones that we have today, ahve passed
the tests given it. Yet most effective scientist will know, even those
who we call "Great", that their theory may be disproven at any moment
as our collective knowledge grows and new facts are discovered.
The point with what Hawkings was implying about reality. Reality is
defined by our  senses, which typicaly means "our perception is our
reality" which is very subjective. I can understand why he would want
to leave it out.
 
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