| Topic: |
Science > Physics |
| User: |
"Keith P Walsh" |
| Date: |
10 Sep 2005 02:26:17 AM |
| Object: |
Re: Faradaic Activity in Dental Amalgams |
On Wed, 07 Sep 2005 20:24:24 -0700, Robert Morien
<PhD_failure@nousefulinfo.com> wrote:
What is your position on the unwillingness of Keith P Walsh to take
these questions to the physics department of the nearest
college/university?
In a discussion concerning the electromagnetic properties of dental
amalgams in newsgroup sci.med.dentistry, correspondent billkatz
offered the following:
"Amalgam is a metallic compound but because of the high resistance of
amalgam, it cannot truly be classified as a conductor."
However, when challenged as to whether or not he was able to provide
any experimental/scientific evidence in support of this statement he
found that he was not.
Does anyone know of any reason why it should not be possible to
measure the electrical resistivity of a typical dental amalgam?
Does anyone know if this has been done?
Can anyone describe a suitable experimental procedure by which the
electrical resistivity of a typical dental amalgam might be measured?
Can anyone recommend any experimental facility which has the
capability to perform such a procedure and would be willing to carry
it out?
Keith P Walsh
.
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| User: "Dave" |
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| Title: Re: Faradaic Activity in Dental Amalgams |
10 Sep 2005 07:40:27 AM |
|
|
"Keith P Walsh" <keith.p.walsh@btinternet.com> wrote in message
news:eo15i1ptffc2fafn9k6v0q4b51pqe5mg8t@4ax.com...
Does anyone know of any reason why it should not be possible to
measure the electrical resistivity of a typical dental amalgam?
no
Does anyone know if this has been done?
yes
Can anyone describe a suitable experimental procedure by which the
electrical resistivity of a typical dental amalgam might be measured?
yes
Can anyone recommend any experimental facility which has the
capability to perform such a procedure and would be willing to carry
it out?
yes
Keith P Walsh
idiot keeps asking the same questions. go buy an ohm meter and measure it
yourself!
.
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| User: "Keith P Walsh" |
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| Title: Re: Faradaic Activity in Dental Amalgams |
10 Sep 2005 12:01:08 PM |
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On Sat, 10 Sep 2005 12:40:27 -0000, "Dave" <noone@nowhere.com> wrote:
"Keith P Walsh" <keith.p.walsh@btinternet.com> wrote in message
news:eo15i1ptffc2fafn9k6v0q4b51pqe5mg8t@4ax.com...
Does anyone know of any reason why it should not be possible to
measure the electrical resistivity of a typical dental amalgam?
no
Does anyone know if this has been done?
yes
Electrical resistivity is measured in units of ohm-metres.
Would you be able to quote me a value for the electrical resistivity
of a typical dental amalgam, together with an appropriate reference
for the experimental procedure by which it was measured?
Keith P Walsh
.
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| User: "Robert Morien" |
|
| Title: Re: Faradaic Activity in Dental Amalgams |
10 Sep 2005 02:39:38 PM |
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In article <7046i1d23kuoep6jjngbed23mgq25j8n6p@4ax.com>,
Keith P Walsh <keith.p.walsh@btinternet.com> wrote:
On Sat, 10 Sep 2005 12:40:27 -0000, "Dave" <noone@nowhere.com> wrote:
"Keith P Walsh" <keith.p.walsh@btinternet.com> wrote in message
news:eo15i1ptffc2fafn9k6v0q4b51pqe5mg8t@4ax.com...
Does anyone know of any reason why it should not be possible to
measure the electrical resistivity of a typical dental amalgam?
no
Does anyone know if this has been done?
yes
Electrical resistivity is measured in units of ohm-metres.
Would you be able to quote me a value for the electrical resistivity
of a typical dental amalgam, together with an appropriate reference
for the experimental procedure by which it was measured?
Keith P Walsh
Yes, go see Prof. XXX in the physics department at your local
college/university.
.
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| User: "Clinton" |
|
| Title: Re: Faradaic Activity in Dental Amalgams |
10 Sep 2005 12:43:44 PM |
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Keith P Walsh wrote:
On Sat, 10 Sep 2005 12:40:27 -0000, "Dave" <noone@nowhere.com> wrote:
"Keith P Walsh" <keith.p.walsh@btinternet.com> wrote in message
news:eo15i1ptffc2fafn9k6v0q4b51pqe5mg8t@4ax.com...
Does anyone know of any reason why it should not be possible to
measure the electrical resistivity of a typical dental amalgam?
no
Does anyone know if this has been done?
yes
Electrical resistivity is measured in units of ohm-metres.
Would you be able to quote me a value for the electrical resistivity
of a typical dental amalgam, together with an appropriate reference
for the experimental procedure by which it was measured?
Nothing has a constant resistance. For example ,if you took a
standard resistor and examined it micrometer by micrometer you
would see large changes in the properties and fluctations in the
resistance/meter.
The point is that within a ciruit amalgam can be characterised
as having an overall resistance. For example, suppose you took
a 9v batter and connected it to amalgam. A certain current flows.
It matters little to the external environment what happens in
every microscopic part of the amalgam. All that matters is the
amount of current, which comes out of the resistor, what the net
result is. The external voltage appled , divided by the current
coming into (and leaving) the amalgam.(assuming the amalgam isn't a
voltage source) IS the resistance of the amalgam.
Obviously the physical properties of amalgam may vary because
it is a mixture which is not uniform and it may have some very unusual
properties which are not understood. We obviously don't
even understand all the phase changes and how to predict the amount
of Hg vapor. But even so all properties such as capacitance, any
generated voltage, any inductance etc can basically be "characterized"
with one number as far as any "external" electric or biological circuit
is concerned at a given point in tiem. Circuits aren't designed based
on how their components behave internally, though this may help explain
variations in measured bulk properties. They are designed using the
black box principle.
"what matters" is how these components affect the circuit
they are connected to..interanlly they can be thought of as a black
box, because a neuron will never see what is happening inside the
amalgam. It will only respond to the net current and voltage,fields,
capacitance, etc produced externally by the amalgam.
Keith P Walsh
.
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| User: "billkatz" |
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| Title: Re: Faradaic Activity in Dental Amalgams |
10 Sep 2005 02:07:40 PM |
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Keith has been banging the same old tired drum for the last five years
and he doesn't even understand how little his posts have to do with
Faraday's Law, Gauss' Law or Maxwell's corresponding equations...
FWIW, in layman's terms, Faraday's Law:
"Any change in the magnetic environment of a coil of wire will cause a
voltage (emf) to be "induced" in the coil. No matter how the change is
produced, the voltage will be generated. The change could be produced
by changing the magnetic field strength, moving a magnet toward or away
from the coil, moving the coil into or out of the magnetic field,
rotating the coil relative to the magnet, etc. "
All this reminds me of the old Gilligan's Island episode where
Gilligan's mouth turned into a radio...
.
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| User: "Androcles Androcles@ MyPlace.org" |
|
| Title: Re: Faradaic Activity in Dental Amalgams |
11 Sep 2005 05:57:18 PM |
|
|
"billkatz" <billthekat@hotmail.com> wrote in message
news:1126379260.907101.313130@g14g2000cwa.googlegroups.com...
| Keith has been banging the same old tired drum for the last five years
| and he doesn't even understand how little his posts have to do with
| Faraday's Law, Gauss' Law or Maxwell's corresponding equations...
|
| FWIW, in layman's terms, Faraday's Law:
| "Any change in the magnetic environment of a coil of wire will cause a
| voltage (emf) to be "induced" in the coil. No matter how the change is
| produced, the voltage will be generated. The change could be produced
| by changing the magnetic field strength, moving a magnet toward or
away
| from the coil, moving the coil into or out of the magnetic field,
| rotating the coil relative to the magnet, etc. "
And of course moving the magnet is changing the strength of the field
in the vicinity of the conductor, as is moving the conductor through the
field.
Einstein began his 1905 paper with:
"It is known that Maxwell's electrodynamics--as usually understood at
the present time--when applied to moving bodies, leads to asymmetries
which do not appear to be inherent in the phenomena. Take, for example,
the reciprocal electrodynamic action of a magnet and a conductor. The
observable phenomenon here depends only on the relative motion of the
conductor and the magnet, whereas the customary view draws a sharp
distinction between the two cases in which either the one or the other
of these bodies is in motion. For if the magnet is in motion and the
conductor at rest, there arises in the neighbourhood of the magnet an
electric field with a certain definite energy, producing a current at
the places where parts of the conductor are situated. But if the magnet
is stationary and the conductor in motion, no electric field arises in
the neighbourhood of the magnet. In the conductor, however, we find an
electromotive force, to which in itself there is no corresponding
energy, but which gives rise--assuming equality of relative motion in
the two cases discussed--to electric currents of the same path and
intensity as those produced by the electric forces in the former case."
Unfortunately he soon forgot it and went on with some rubbish about
[quote]
we establish by definition that the "time" required by a turtle to
travel
from A to B equals the "time" it requires to travel from B to A.
[end quote]
Ref: http://www.fourmilab.ch/etexts/einstein/specrel/www/
[quote]
For velocities greater than that of a turtle our deliberations become
meaningless; we shall, however, find in what follows, that the velocity
of a turtle in our theory plays the part, physically, of an infinitely
great velocity.
[quote]
Ref: http://www.fourmilab.ch/etexts/einstein/specrel/www/
Einstein can "prove" (ha ha) nothing can go faster than a turtle.
Oops!... Did I say 'a turtle'? Sorry...'light'.
We are still stuck with "It is known that Maxwell's electrodynamics--as
usually understood at the present time--when applied to moving bodies,
leads to asymmetries which do not appear to be inherent in the
phenomena." because the huckster claims
"VII. The Apparent Incompatibility of the Law of Propagation of Light
with the Principle of Relativity
THERE is hardly a simpler law in physics than that according to
which light is propagated in empty space. " --Albert Huckster Einstein
Hardly a simpler law than the Principle of Relativity, and there is NO
law of propagation of light at one speed except Einstein's insistence on
it.
Apparently he thinks you'll get more voltage by moving the conductor
than you will by moving the magnet.
Androcles.
| All this reminds me of the old Gilligan's Island episode where
| Gilligan's mouth turned into a radio...
Yep... stupidity.
Androcles
.
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| User: "Joel M. Eichen" |
|
| Title: Re: Faradaic Activity in Dental Amalgams |
11 Sep 2005 07:39:21 PM |
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On Sun, 11 Sep 2005 22:57:18 GMT, "Androcles" <Androcles@ MyPlace.org>
wrote:
And of course moving the magnet is changing the strength of the field
in the vicinity of the conductor, as is moving the conductor through the
field.
So you are saying that amalgams are more dangerous inside a moving
train?
.
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|
| User: "Don Kelly" |
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| Title: Re: Faradaic Activity in Dental Amalgams |
11 Sep 2005 08:55:06 PM |
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"Joel M. Eichen" <joeleichen@yahoo.com> wrote in message
news:qgj9i1ll0uo8s2ptjo2fb4d33onfv7uqmf@4ax.com...
On Sun, 11 Sep 2005 22:57:18 GMT, "Androcles" <Androcles@ MyPlace.org>
wrote:
And of course moving the magnet is changing the strength of the field
in the vicinity of the conductor, as is moving the conductor through the
field.
So you are saying that amalgams are more dangerous inside a moving
train?
No- the danger would be due to relative motion of the teeth with respect to
the body- this danger is at a maximum when engaged in political doubletalk.
Since the life span of a politician is normal, it appears that the risk is
negligable- too bad! :)
--
Don Kelly @shawcross.ca
remove the X to answer
----------------------------
.
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| User: "carabelli" |
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| Title: Re: Faradaic Activity in Dental Amalgams |
11 Sep 2005 09:05:05 PM |
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"Joel M. Eichen" <joeleichen@yahoo.com> wrote in message
news:qgj9i1ll0uo8s2ptjo2fb4d33onfv7uqmf@4ax.com...
On Sun, 11 Sep 2005 22:57:18 GMT, "Androcles" <Androcles@ MyPlace.org>
wrote:
And of course moving the magnet is changing the strength of the field
in the vicinity of the conductor, as is moving the conductor through the
field.
So you are saying that amalgams are more dangerous inside a moving
train?
Particularily when one train leaves Chicago at 65 mph and one leaves Denver
at 55 mph.........
The answer in this years SAT is
c. 350 mV
carabelli
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| User: "LadyLollipop" |
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| Title: Re: Faradaic Activity in Dental Amalgams |
11 Sep 2005 10:01:53 PM |
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"Joel M. Eichen" <joeleichen@yahoo.com> wrote in message
news:qgj9i1ll0uo8s2ptjo2fb4d33onfv7uqmf@4ax.com...
On Sun, 11 Sep 2005 22:57:18 GMT, "Androcles" <Androcles@ MyPlace.org>
wrote:
And of course moving the magnet is changing the strength of the field
in the vicinity of the conductor, as is moving the conductor through the
field.
So you are saying that amalgams are more dangerous inside a moving
train?
It is stupid posts like this, that show the dentists think the dangers of
amalgams are all a joke.
.
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| User: "" |
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| Title: Re: Faradaic Activity in Dental Amalgams |
11 Sep 2005 10:43:29 PM |
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|
I find the following suggestion pretty funny myself. I suppose this is
why nobody takes any personal responsibilty anymore.
"The batteries in my teeth made me do it!"
"I am being controlled by aliens..."
"Low frequency radio waves are controlling my brain..."
Dear
The enclosed sheet shows how when a crude electric battery, such as a
metal amalgam filling, is inserted into the tooth of a live human
being, then the innervation of the head (through the upper and lower
mandibles, tongue, sinuses, eyes, bridge of nose, ears and all the way
back to the pons) provides a network of circuitry capable of
dissipating the potential of the battery in the form of an electric
current.
It must be recognised that each individual in society has their own
unique array of tooth batteries and these vary from person to person
with regard to size, number and time of life when each battery was
fitted/removed.
It is my firm belief that it is the presence of these batteries in
peoples mouths which is causing many to feel that they have inadequate
control of their own lives.
Could you please supply me with any evidence you have which contradicts
this belief.
Kindest regards,
.
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| User: "John Popelish" |
|
| Title: Re: Faradaic Activity in Dental Amalgams |
11 Sep 2005 11:08:43 PM |
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|
wrote:
(snip)
It is my firm belief that it is the presence of these batteries in
peoples mouths which is causing many to feel that they have inadequate
control of their own lives.
Could you please supply me with any evidence you have which contradicts
this belief.
Sorry, it is not my job to contradict your beliefs (and I can't
imagine any evidence for the absence of such a hypothetical effect
that would change your mind).
You are welcome to any beliefs that suit you, as long as you don't try
to force me to believe.
It is your job to support your beliefs with evidence and logic, if you
expect to persuade any reasonable person that your beliefs are valid.
You are also free to skip this part and blame the world for not being
inspired by your unfounded presuppositions.
That would put you in large company.
.
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| User: "Stovepipe" |
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| Title: Re: Faradaic Activity in Dental Amalgams |
11 Sep 2005 08:27:39 PM |
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Joel M. Eichen <joeleichen@yahoo.com> wrote:
On Sun, 11 Sep 2005 22:57:18 GMT, "Androcles" <Androcles@ MyPlace.org>
wrote:
And of course moving the magnet is changing the strength of the field
in the vicinity of the conductor, as is moving the conductor through the
field.
So you are saying that amalgams are more dangerous inside a moving
train?
To say nothing of the patient moving through the Earth's magnetic
field...
SP
--
Take out the TRASH to reply
.
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| User: "Joel M. Eichen" |
|
| Title: Re: Faradaic Activity in Dental Amalgams |
12 Sep 2005 04:50:13 AM |
|
|
On Sun, 11 Sep 2005 21:27:39 -0400, (Stovepipe)
wrote:
Joel M. Eichen <joeleichen@yahoo.com> wrote:
On Sun, 11 Sep 2005 22:57:18 GMT, "Androcles" <Androcles@ MyPlace.org>
wrote:
And of course moving the magnet is changing the strength of the field
in the vicinity of the conductor, as is moving the conductor through the
field.
So you are saying that amalgams are more dangerous inside a moving
train?
To say nothing of the patient moving through the Earth's magnetic
field...
SP
Good point. I just got scared and went downstairs and removed all the
magnets from the front of my refrigerator and tossed them in the
trash. Does anyone know whether they are considered hazardous waste?
Joel
.
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| User: "Clinton" |
|
| Title: Re: Faradaic Activity in Dental Amalgams |
12 Sep 2005 05:03:58 AM |
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|
Here is a thought experiment. take a square conducting loop. Inside
a fluctating magnetic field is applied as found in a power
generator capable of producting 2000V or more and transmitting
a large amount of power through the loop, to say a power line.
Now replace the square conductor with a plastic one, and in addition
rotate the plastic conductor at a high rate of speed in and out
of the magnetic field.
Theoretically a fluctating magnetic field will induce an electric
field and thus a "voltage" in space or any moving loop. Why doesn't the
plastic conductor burn up with all the electric energy generated by the
magnetic field, which normally would have been transmitted by the
"conducting loop".
.
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| User: "Joel M. Eichen" |
|
| Title: Re: Faradaic Activity in Dental Amalgams |
12 Sep 2005 05:11:00 AM |
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|
On 12 Sep 2005 03:03:58 -0700, "Clinton" <clintonz@prodigy.net> wrote:
Here is a thought experiment. take a square conducting loop. Inside
a fluctating magnetic field is applied as found in a power
generator capable of producting 2000V or more and transmitting
a large amount of power through the loop, to say a power line.
What do you mean "thought experiment?" A number of posters conduct
this kind of inquiry three, maybe four times a day right in their
bedrooms .......
Joel
Now replace the square conductor with a plastic one, and in addition
rotate the plastic conductor at a high rate of speed in and out
of the magnetic field.
Theoretically a fluctating magnetic field will induce an electric
field and thus a "voltage" in space or any moving loop. Why doesn't the
plastic conductor burn up with all the electric energy generated by the
magnetic field, which normally would have been transmitted by the
"conducting loop".
.
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| User: "Clinton" |
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| Title: Re: Faradaic Activity in Dental Amalgams |
12 Sep 2005 06:05:56 AM |
|
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Joel M. Eichen wrote:
On 12 Sep 2005 03:03:58 -0700, "Clinton" <clintonz@prodigy.net> wrote:
Here is a thought experiment. take a square conducting loop. Inside
a fluctating magnetic field is applied as found in a power
generator capable of producting 2000V or more and transmitting
a large amount of power through the loop, to say a power line.
What do you mean "thought experiment?" A number of posters conduct
this kind of inquiry three, maybe four times a day right in their
bedrooms .......
Well you know what a dramatic effect magnetic fields can
have on the sense of direction of even a pigeon. Many people,
including some dentists therefore should avoid driving near power
lines!
.
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| User: "Joel M. Eichen" |
|
| Title: Re: Faradaic Activity in Dental Amalgams |
12 Sep 2005 06:47:26 AM |
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On 12 Sep 2005 04:05:56 -0700, "Clinton" <clintonz@prodigy.net> wrote:
Joel M. Eichen wrote:
On 12 Sep 2005 03:03:58 -0700, "Clinton" <clintonz@prodigy.net> wrote:
Here is a thought experiment. take a square conducting loop. Inside
a fluctating magnetic field is applied as found in a power
generator capable of producting 2000V or more and transmitting
a large amount of power through the loop, to say a power line.
What do you mean "thought experiment?" A number of posters conduct
this kind of inquiry three, maybe four times a day right in their
bedrooms .......
Well you know what a dramatic effect magnetic fields can
have on the sense of direction of even a pigeon. Many people,
including some dentists therefore should avoid driving near power
lines!
Yup, to say nothing about pigeons with amalgam fillings ......
They are "DRAWN TO" the power lines .....
I always see them sitting around there .......
.
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| User: "Clinton" |
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| Title: Re: Faradaic Activity in Dental Amalgams |
12 Sep 2005 06:02:43 AM |
|
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Joel M. Eichen wrote:
On 12 Sep 2005 03:03:58 -0700, "Clinton" <clintonz@prodigy.net> wrote:
Here is a thought experiment. take a square conducting loop. Inside
a fluctating magnetic field is applied as found in a power
generator capable of producting 2000V or more and transmitting
a large amount of power through the loop, to say a power line.
What do you mean "thought experiment?" A number of posters conduct
this kind of inquiry three, maybe four times a day right in their
bedrooms .......
Joel
Thus, Faraday's law implies that the line integral of the electric
field around circuit (in the positive direction) is equal to minus the
time rate of change of the magnetic flux linking this circuit. Does
this law just apply to conducting circuits, or can we apply it to an
arbitrary closed loop in space? Well, the difference between a
conducting circuit and an arbitrary closed loop is that electric
current can flow around a circuit, whereas current cannot, in general,
flow around an arbitrary loop. In fact, the emf induced around a
conducting circuit drives a current around that circuit, where is the
resistance of the circuit. However, we can make this resistance
arbitrarily large without invalidating Eq. (7.13). In the limit in
which tends to infinity, no current flows around the circuit, so the
circuit becomes indistinguishable from an arbitrary loop. Since we can
place such a circuit anywhere in space, and Eq. (7.13) still holds, we
are forced to the conclusion that Eq. (7.13) is valid for any closed
loop in space, and not just for conducting circuits.
Equation (7.13) describes how a time varying magnetic field generates
an electric field which fills space. The strength of the electric field
is directly proportional to the rate of change of the magnetic field.
The field lines associated with this electric field form loops in the
plane perpendicular to the magnetic field. If the magnetic field is
increasing then the electric field lines circulate in the opposite
sense to the fingers of my right-hand, when the thumb of my right-hand
points in the direction of the field. If the magnetic field is
decreasing then the electric field lines circulate in the same sense as
the fingers of my right-hand, when the thumb of my right-hand points in
the direction of the field. This is illustrated in the diagram below.
We can now appreciate that when a conducting circuit is placed in a
time varying magnetic field, it is the electric field induced by the
changing magnetic field which gives rise to the emf around the circuit.
If the loop has a finite resistance then this electric field also
drives a current around the circuit. Note, however, that the electric
field is generated irrespective of the presence of a conducting
circuit.
----------------------------
So if I took a loop of say plastic and rotated it in a strong
magnetic field, like is done with conducting loops in power stations to
generate current why wouldn't the plastic loop heat up from the induced
voltage. Or would it?
In such a case you should avoid spinning near magnetic fields, because
you might spontaneosuly combust!
.
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| User: "billkatz" |
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| Title: Re: Faradaic Activity in Dental Amalgams |
12 Sep 2005 06:33:57 AM |
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So if I took a loop of say plastic and rotated it in a strong
magnetic field, like is done with conducting loops in power stations to
generate current why wouldn't the plastic loop heat up from the induced
voltage. Or would it?
Plastic will not conduct because of its molecular valance.
That's why they use some plastics as insulators.
.
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| User: "Joel M. Eichen" |
|
| Title: Re: Faradaic Activity in Dental Amalgams |
12 Sep 2005 06:46:25 AM |
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On 12 Sep 2005 04:33:57 -0700, "billkatz" <billthekat@hotmail.com>
wrote:
So if I took a loop of say plastic and rotated it in a strong
magnetic field, like is done with conducting loops in power stations to
generate current why wouldn't the plastic loop heat up from the induced
voltage. Or would it?
Plastic will not conduct because of its molecular valance.
That's why they use some plastics as insulators.
....and silicon as semi-conductors .......
Who knows what Bakelite is?
.
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| User: "Robert Morien" |
|
| Title: Re: Faradaic Activity in Dental Amalgams |
12 Sep 2005 04:36:38 PM |
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In article <hjqai1ptp3m86pbnbnsev0obkmr1qg6oks@4ax.com>,
Joel M. Eichen <joeleichen@yahoo.com> wrote:
On 12 Sep 2005 04:33:57 -0700, "billkatz" <billthekat@hotmail.com>
wrote:
So if I took a loop of say plastic and rotated it in a strong
magnetic field, like is done with conducting loops in power stations to
generate current why wouldn't the plastic loop heat up from the induced
voltage. Or would it?
Plastic will not conduct because of its molecular valance.
That's why they use some plastics as insulators.
...and silicon as semi-conductors .......
Who knows what Bakelite is?
Keith?
.
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| User: "Clinton" |
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| Title: Re: Faradaic Activity in Dental Amalgams |
12 Sep 2005 06:53:03 AM |
|
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billkatz wrote:
So if I took a loop of say plastic and rotated it in a strong
magnetic field, like is done with conducting loops in power stations to
generate current why wouldn't the plastic loop heat up from the induced
voltage. Or would it?
Plastic will not conduct because of its molecular valance.
That's why they use some plastics as insulators.
SSsssshhh! but Joel, however, the changing magnetic field will produce
a 2000Volt Voltage on the plastic loop and with a resistance
of R (even though admittedly it is not a conductor) the current should
equal V=RI I =V/R, or is ohms law now invalid!!!
.
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| User: "billkatz" |
|
| Title: Re: Faradaic Activity in Dental Amalgams |
12 Sep 2005 06:59:18 AM |
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|
SSsssshhh! but Joel, however, the changing magnetic field will produce
a 2000Volt Voltage on the plastic loop and with a resistance
of R (even though admittedly it is not a conductor) the current should
equal V=RI I =V/R, or is ohms law now invalid!!!
Briskly rubbing an inflated balloon on a cat's back will cause the same
effect.
Albeit, the cat experiment can be more dramatic... depending on your
cat.
.
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| User: "carabelli" |
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| Title: Re: Faradaic Activity in Dental Amalgams |
12 Sep 2005 08:52:20 AM |
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"billkatz" <billthekat@hotmail.com> wrote in message
news:1126526358.533506.239180@g47g2000cwa.googlegroups.com...
SSsssshhh! but Joel, however, the changing magnetic field will produce
a 2000Volt Voltage on the plastic loop and with a resistance
of R (even though admittedly it is not a conductor) the current should
equal V=RI I =V/R, or is ohms law now invalid!!!
Briskly rubbing an inflated balloon on a cat's back will cause the same
effect.
Albeit, the cat experiment can be more dramatic... depending on your
cat.
I don't have any cats, can I substitute dogs?
carabelli
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| User: "billkatz" |
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| Title: Re: Faradaic Activity in Dental Amalgams |
12 Sep 2005 09:01:29 AM |
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I don't have any cats, can I substitute dogs?
carabelli
Depends.
One of our fine readers indicated that you can get 700 mV out of a pit
bull... but he's not been heard from since.
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| User: "carabelli" |
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| Title: Re: Faradaic Activity in Dental Amalgams |
12 Sep 2005 09:28:52 AM |
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"billkatz" <billthekat@hotmail.com> wrote in message
news:1126533689.835558.101720@o13g2000cwo.googlegroups.com...
I don't have any cats, can I substitute dogs?
carabelli
Depends.
One of our fine readers indicated that you can get 700 mV out of a pit
bull... but he's not been heard from since.
Actually, I have 2 dogs. Since they are littermates should I connect them
in series or parallel?
One is female and the other male if that helps.
carabelli
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| User: "billkatz" |
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| Title: Re: Faradaic Activity in Dental Amalgams |
12 Sep 2005 09:38:13 AM |
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Actually, I have 2 dogs. Since they are littermates
should I connect them in series or parallel?
One is female and the other male if that helps.
carabelli
That's illegal... except in Kentucky.
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| User: "billkatz" |
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| Title: Re: Faradaic Activity in Dental Amalgams |
12 Sep 2005 09:39:02 AM |
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Actually, I have 2 dogs. Since they are littermates
should I connect them in series or parallel?
One is female and the other male if that helps.
carabelli
That's illegal... except in Kentucky.
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| User: "Robert Morien" |
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| Title: Re: Faradaic Activity in Dental Amalgams |
12 Sep 2005 04:38:50 PM |
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In article <EggVe.34989$qY1.2852@bgtnsc04-news.ops.worldnet.att.net>,
"carabelli" <redslaz3@att.net.not> wrote:
"billkatz" <billthekat@hotmail.com> wrote in message
news:1126533689.835558.101720@o13g2000cwo.googlegroups.com...
I don't have any cats, can I substitute dogs?
carabelli
Depends.
One of our fine readers indicated that you can get 700 mV out of a pit
bull... but he's not been heard from since.
Actually, I have 2 dogs. Since they are littermates should I connect them
in series or parallel?
One is female and the other male if that helps.
carabelli
If they are litter mates: Parallel. If not: series.
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