Szczepan Bialek wrote:

All time the electrons flow to or from the ground.

Nope.

"Let me answer some of your questions. Capacitors loose their charge both
through the insulation between the plates and through the air surrounding
the capacitor. The charge is a surplus of electrons on one plate and a
rarefaction of electrons on the other. Where the electrons are compacted
(the negative plate) the electrons tend to push each other off. Where there
is a deficit of electrons (the positive plate) electrons are attracted from
other sources - air, the positive plate. Both of these actions tend to
decrease the potential difference between the plates... to discharge the
capacitor. From: http://www.newton.dep.anl.gov/askasc...0/phy00900.htm

A valid statement but you have no clue what it is talking about or what
any of it means in the real world.

It has nothing to do with what is being discussed.

" Variable capacitors with their plates open to the atmosphere were commonly
used in radio tuning circuits."

Again, a valid statement but you have no clue what it is talking about or what
any of it means in the real world.

It has nothing to do with what is being discussed.

If you have such try to measure "the Capacitor charge holding" and decide.

This is just babble.

You are an idiot.