Re: Error in Wikipedia article: Faraday's law of induction



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"Szczepan Bia³ek" <sz.bialek@xxxxx> wrote in message
news:g5phfn$f1s$1@xxxxxxxxxxxxxxxxxxxxxx

"Don Kelly" <
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Horsefeathers!
However you are now admitting that positive strokes exist.

No.It is negative stroke cloud-ground-next cloud. Japanese dicoverd it.
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Data collected in Alberta, Canada in 1984-86 using devices that can detect
location, polarity and magnitude of strokes indicates that for 200,000
strokes recorded, about 20% were positive strokes to ground.
This is recorded data as to the polarity of the strokes and is in line with
data reported earlier by the Swedes (to their surprise as it wasn't
expected) The % of positive strokes is apparently latitude related.

You could get a deficit of electrons in the local ground due to discharge
and neutralization of a positive charge center in the cloud and that could
then possilby trigger a negative stroke to ground which would neutralize
charge in the negative region of the cloud.

However you can't get a positive stroke to ground (which exist) out of
"negative stroke cloud-ground-next cloud" by any twist of illogic.

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I am not interesting in details. "The global electric circuit" is enough
for me.
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You claim a flaw in the global circuit model but then it is good enough
for you. In other words, you are happier being ignorant. Why?

I am not an meteorologist. For me is enough to know:
1. Earth has excess of electrons
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Cite some source or reasoning for this. It may be true overall but it isn't
true in the vicinity of a storm cloud.
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2. Electrons migrate up with H2O at fair weather (wet air "destroy" the
charge of a charged body - dry not)
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and within each H2O molecule there is one H+ ion for every OH- ion so both
migrate. The problem is that the droplets are essentially neutral so the net
charge is 0. In a storm, there are mechanisms that cause charge separation.
You are hand waving again.

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3. Voltage is raising when drops rise (Armstrong and Kelvin made such high
voltage generators in XIX century)
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And if you look at these generators, there is a mechanism that puts a charge
on the initially neutral drops. Did you conveniently ignore this?
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4. Electrons come back to Earth when a cloud disappear
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Lets see, if there is a negatively charged cloud overhead, there will be a
situation where the free electrons in the ground underneath are repelled
leaving a local positive charge. No cloud and the normal distribution
returns. Note that your statement 4 is in contradiction with your
implications in statement 1.
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Meteorologist must know more to be able make forecast.

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Since we are not talking about meteorology per se and neither of us are
meteorologists this is a red herring.

--

Don Kelly dhky@xxxxxxxxxxxx
remove the X to answer


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