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


"Don Kelly" <dhky@xxxxxxx> wrote news:eCegk.80623$kx.31119@xxxxxxxxxxxx


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.

Here are details: http://plaza.ufl.edu/rakov/ICLP2000/positive1.16.pdf

--
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.

You are a victim of terminology. The surface of the Earth and all suspension
in the air has excess of electrons. Each electron emited from earth is
immediately arounded by H2O. So in the air are aggregates not molecules.

-------------
3. Voltage is raising when drops rise (Armstrong and Kelvin made such
high voltage generators in XIX century)
----------------------
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?
-------------
4. Electrons come back to Earth when a cloud disappear
------
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.

You are victim of terminology. Positive/negative in all references means
less/more. Current flows from + to -. No matter if it is +/- 100 or 1000 and
800V.
On all sketches small pluses indicate places to which electrons flow.They
flow from regions with small minuses.
In electrostatics small pluses means deficit of electrons.

"the free electrons in the ground underneath are repelled" but an excess
remains.

No cloud and the normal distribution returns. Note that your statement 4 is
in contradiction with your implications in statement 1.

It seems that you are able to understand the nuance of terminology. Try it.
S*


.

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