. sara-a, .. sara-e, .- sara-r, --- sara-o, ..-- sara-eu, .-.- sara-air
---. sara-u, ..-.. sara-ie, ..-.- sara-au, ..--. sara aue, .-... sara-ar
I have no idea what all that means. Are those sounds?
73, Cecil http://www.qsl.net/w5dxp
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I've only seen two episodes of that show.
The first episode that I saw, they were unable to make a workable
ice bullet and concluded that it couldn't be done,
but logic doesn't work that way.
In order to prove that something can't be done,
not only must your experiment fail, but you must also
prove that there is no better way to make the attempt.
Their attempt was super lame.
They were oblivious to the concept of making clear ice.
It looked as if they didn't know any more about ice,
than what you could glean from drinking soda pop.
In the other episode that I saw, the question was,
"does a microwave cook food from the inside?"
Somehow they thought they could do this,
without comparing differential temperatures between
the inside and outside of food cooked in microwave
and food cooked by convection or conduction.
There are far more electrical processes than the firing of
synapses going on. As an example, just hold the two leads of
a voltmeter in your hands and you will see voltages all over
the map, just as strong as what the Dutch guys measured. The
Dutch experiment is measuring V(amalgam) + V(body), where
V(body) is a highly time dependent, essentially unpredictable
quantity. The Dutch did not do the work to **coherently**
decouple these two values, especially when theory predicts
V(amalgam) = 0.
Here is a direct analogy to the fallacy that I pointed out:
turn on a tv and use a volt meter to measure the potential across
some random resistor on one of the tv's circuit boards. Claiming
that this non-zero potential is due to active power generation
in the resistor is pure junk and is no different than what the Dutch
guys are doing by measuring the potential between an amalgam
and some point in the oral cavity. If back in my grad school
days you were in my EE circuits lab, you would have gotten
an F for making conclusions based on such a clearly unsound
circuit diagnostic approach.
On Fri, 23 Jan 2004 18:42:00 -0000, "David Robbins"
Someone else raised this point recently.
I think it's a valid question.
Being purely speculative about it, one might suggest that if the
electrical potentials generated by amalgam fillings ARE able to
dissipate electrical energy through the nerves in people's heads, then
any neurological effect might be arbitrary in nature.
Put simply; it might make some people happy, it might make some people
unhappy, and it might cause what are commonly referred to as "mood
swings" in others.
However, speculation on its own does not constitute science.
We should need some kind of observed evidence to determine the degree
to which any such kinds of influences occur.
For example, is there any significant level of "irrational fear" of
going to the dentist in our society?
Is there any significant level of "irrational predilection" for going
to the dentist in our society?
And other such questions.
Putting speculation aside, we know reasonably well for certain that
metal amalgam dental fillings generate electrical potentials with
magnitudes of up to 350 millivolts. See:
However, in addition to the fact that experimental studies to
determine whether or not these potentials are able to dissipate
electrical energy through the nerves in people's heads have never been
carried out, it also appears that it is not fully explained as to how
Dentists confidently tell us that newly placed amalgam fillings
quickly acquire a layer of metal oxide on their exposed surfaces as
the result of a small degree of electrolytic corrosion, and that this
layer adheres permanently to the surface thereby preventing further
electrolysis from taking place.
I have no reason to doubt that this is the case.
However, it has been known for more than 160 years that metals,
mixtures of metals, and dissimilar metals in contact with each other
are able to generate electrical potentials as a result of their
thermoelectric properties, and that it is not necessary for there to
be any electrolysis taking place in order for this to happen.
It has also been known for more than 160 years that when an electrical
conductor moves in an electromagnetic field an electromotive force is
induced in the conductor, and that when a stationary conductor is
subjected to a varying electromagnetic field then an electromotive
force is again induced in the conductor.
According to the established principles of scientific understanding,
in order to eliminate the possibility that the generation of these
potentials is contributed to by the thermoelectric and/or
electromagnetic properties of dental amalgams, it should be necessary
to measure them.
Nevertheless it appears that there isn't anyone anywhere in the world
who knows what the electromagnetic properties (including magnetic
susceptibility) of dental amalgams are.
And it also appears that there isn't anyone anywhere in the world who
knows what the thermoelectric properties of dental amalgams are.
(A dental amalgam is an inhomogeneous mixture of dissimilar metals, a
typical example of which can be seen at:
It might be expected therefore that its physical properties should
vary accordingly from point to point within the material. Establishing
what influence, if any, that this variation might have on the
electrical behavior of the material might also require experimental
As things stand, anyone who wished to find out the extent to which the
electrical potentials generated by the amalgam fillings in their teeth
were compromising their ability to feel contentment would have to be
satisfied with the only honest answer which the dental or any other
profession could give: "I'm sorry we have no idea."
And amalgam fillings continue to be placed in children's teeth.
Keith P Walsh
- why not, until the science has been done anythings possible.
OTOH the brain is used to recognising pain as the only message coming
from the teeth, apart from slight proprioceptor activity. Why should it
interpret the current produced by amalgams as something else?
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