Group: sci.physics.electromag
From: "Szczepan Bialek"
Date: Sunday, February 10, 2008 3:10 AM
Subject: Re: #59 superconductors behave as a Leyden jar; new textbook: "How Superconductivity really works; nanosecond Capacitor discharge current"


"Archimedes Plutonium"
> Szczepan Bialek wrote:
>>
>>>Now there is much news in recent years that Lightning bolts are
>>>triggered by Cosmic Rays. So that the clouds
>>>act as Capacitor but that the Cosmic Ray is essential for the current
>>>to flow.
>>
>> I prefer XIX century science in this area. Electrons migrate up with
>> water vapour. More electrons higher clouds. When droplets growth the
>> voltage is built up (V = Q/C). Lighting starts as the capacitor discharge
>> (oscillating current) between droplets. Next -step by step - finds the
>> way to the ground.
>
> Trouble is that XIX and XX centuries did not have the sophisticated
> measuring devices that a recent program showed of scientists stationed in
> Florida and reading the instruments after Lightning strikes.

Leyden jar and a tissue is sufficient to discover that in spark current
oscillate and that the voltage is a trigger.
>
> There is a trigger involved and could well be Cosmic Rays.
>
> Whether superconductivity requires a "trigger" I am not sure.
>
> I would think that a "too full" or "too filled up" would be its
> own trigger.

"To full" charging (higher voltage) trigger the first spark between
droplets. Next is an avalange (but oscillating avalange).
>
> Nanoseconds are brief time period 10^-9 but picoseconds are even
> briefer in 10^-12.
>
> I can imagine an experiment done where a given number of electrons
> in a current is applied to a superconductor and those electrons
> are completely absorbed by the Capacitance of the superconductor
> where no current is observed at the other end. Such an experiment
> would prove the Capacitor theory of superconductivity. For such a
> experiment would have the superconductor act as a Leyden jar.

Here are necessary the sophisticated measuring devices.
S*