sci.physics.electromag

Szczepan Bialek wrote:
> "a_plutonium"
> >
> > So that a viewer or audience of scientist could see a magnet
> > levitating on a superconductor at 4 Kelvin
> > and see the very same Meissner Effect of the magnet levitating on a
> > Wimshurst generator at room temperature.
>
> Neodym magnet levitate between the two bismuth blocks at room tempereture.

What are you referring to in that statement?

> >
> >
> > The reason superconduction was first found in pure elements such as
> > mercury and lead
>
> Superconductivity in metals.I think that vacuum is a superconductor.

No, I disagree for you descended too far down. You have to have
charges and
materials to have electricity and magnetism. So you have to start with
that
level of physics to do superconduction.


>
> >is because you have to go to very cold temperatures of 4 degrees Kelvin to
> >form
> > crystal lattices in those metals that forms a capacitor.
>
> Low temperature create "free ways" for electrons in the lattice.
>
> >Silver is nonsuperconductive because you cannot get silver atoms to form
> a Capacitor
> > regardless of how cold you go.
> > Perhaps silver does form a capacitor
> > when very close to absolute zero
> > but we have not been able to go that low in temperature.
>
> 0 Kelvin was calculated for the ideal gas. We can calculate the zero for
> metals. Will be they equal?
> >
> > Now the trouble with my Wimshurst generator setup is that the current
> > is not continuous enough
>
> All capacitor currents are the oscillating current. Continuous is the
> electric arc.
> Electrons do not like vacuum. They prefer a body. When the voltage is too
> high electrons start to find a new body. They jump on the nearest body. Such
> becomes charged and next jump take place. Air or dielectric is breakdown and
> the current oscilate. The breakdown is simply a vacuum hole. But each hole
> must has the walls. They are not superconductive.
> Materials engineers try to do a material which has many of proper holes..
>
> The first step should be the answer for the question: Is the vacuum
> superconductive?
> S*

No the question of vacuum is not a first question, it is besides the
issue.
We start superconduction not with talk of vacuum; we start
superconduction
with the talk of regular normal conduction and that is not a vacuum
start.

Szczepan I have a question for you. If you are teaching young kids who
for
the first time are learning electricity, how do you explain to them
the difference
between AC current and DC current. Do you tell them DC is a army of
marching
soldiers, where soldiers are electrons, and where the end most soldier
forces
the front most soldier by the bugle call to march to begin to move
forward to register
on the amp-meter? And then to explain AC current in this analogy of
soldiers
that the soldiers keep turning around marching the opposite direction
after every
two steps forward they turn around and make one step backwards? So
that
the DC soldiers have a speed of 2 steps per second while AC soldiers
have
a speed of 1 step per second forward. Is that how you would explain
the difference
between AC versus DC current.

I am looking for the most easiest explanation of the difference
between AC and DC
that a young kid can understand, and that is accurate picture of what
the electrons
are doing.

Archimedes Plutonium
www.iw.net/~a_plutonium
whole entire Universe is just one big atom
where dots of the electron-dot-cloud are galaxies