🚀 go-pugleaf

On 6 Oct, 03:38, "daestrom" <daestrom@NO_SPAM_HEREtwcny.rr.com> wrote:
> "Pentcho Valev" <pva...@yahoo.com> wrote:
>
> > On 3 Oct, 01:07, "daestrom" <daestrom@NO_SPAM_HEREtwcny.rr.com> wrote:
> >> "Pentcho Valev" <pva...@yahoo.com> wrote:
>
> >> >http://www.physorg.com/news110191847.html
> >> > "When exposed to a high-voltage electric field, water in two beakers
> >> > climbs out of the beakers and crosses empty space to meet, forming the
> >> > water bridge. The liquid bridge, hovering in space, appears to the
> >> > human eye to defy gravity."
>
> >> > In a strong electrical field water dipoles are ordered in such a way
> >> > that thermal agitation of molecules causes a SPECIFIC PRESSURE inside
> >> > the liquid. In certain experiments this specific pressure can lift
> >> > water: the energy needed for lifting is in fact heat absorbed from the
> >> > surroundings. If lifted water is allowed to leave the field (for
> >> > instance, when water has been lifted between the plates of a
> >> > capacitor, the specific pressure could push it through a hole in one
> >> > of the plates), the liquid will form, ideally, an eternal waterfall
> >> > outside the strong field. Perhaps the device cannot be of any
> >> > practical use as a heat engine but still it violates the second law of
> >> > thermodynamics.
>
> >> Actually, no it doesn't.  Look at how much energy is put into the
> >> electric
> >> field to create and maintain it.  Here's a hint, when the water moves,
> >> does
> >> it affect the electric field?
>
> > You put energy to create the electric field but then, ideally, you do
> > not put more energy to maintain it, although water forms an eternal
> > waterfall outside the electric field.
>
> Ah.... If only are 'ideals' were reality.
>
> > Consider a charged and then
> > disconnected capacitor partially immersed in a water pool, as shown in
> > fig. 6-7 on p. 112 in W. Panofsky, M. Phillips, Classical Electricity
> > and Magnetism, Addison-Wesley, Reading, Massachusetts, 1962. Water
> > rises between the plates but this does not discharge the capacitor.
>
> Any proof for this article of faith?  The water is drawn in because it is a
> slightly polar molecule in an electric field.  So the molecules will tend to
> orient themselves with the electric field.  That 'discharges' the capacitor
> slightly.  When the water leaves through the hole, the molecules do not
> re-impart this energy back to the capacitor, it instead carries a tiny
> electric field out the hole by virtue of average molecular orientation is a
> certain direction.
>
> So we go from the highly ordered charge of the initially charged capacitor
> to the less ordered configuration of a partially discharged capacitor and
> slightly polar oriented water molecules that are tumbling out the small
> hole.  Sounds to me like entropy is increasing.  No violation of the second
> law here.

Too silly. The capacitor can only be discharged as it exchanges
charged PARTICLES with water.

Pentcho Valev