🚀 go-pugleaf

On Sep 13, 7:55 am, "Y.Porat" <y.y.po...@gmail.com> wrote:
> On Sep 13, 2:15 pm, "Y.Porat" <y.y.po...@gmail.com> wrote:
>

> we know for   instance that black    holes
> radiate their powerful photons
> **perpendicular**  to the plan of their  inner movement
> so their radial   (discal )    movement is not relevant
> as velocity of source !!
       The black holes don't emit anything. At least not the large
ones. You are getting some concepts mixed up.
     I conjecture that you are thinking of those radio galaxies that
are spurting out jets of hot material from their disks. The material
is not photons. This is atomic material so hot it emits photons. These
jets have been photographed, showing that at least some photons are
being emitted perpendicular to jets, which means parallel to the
galactic disk.
      The model often presented is that the material is first sucked
from the galaxic equator by gravity of the black hole (in addition to
collisions that release energy), and then before being swallowed by
the black hole is spurted out the "poles" of the black hole. The
emission of material is not due to the centrifugal force of the black
hole as you suggest. It is because of heating. The motion of the black
hole is involved with the jet, but not in the way you think.
       What is usually stated is that the spinning black hole drags
"space time curvature" which channels the material along the poles.
However, this is more easily understood in the weak field limit of GR.
      In the weak field limit of GR, a gravitional field is analogous
to an electric field where inertial mass replaces electric charge.
Analogous to the magnetic field caused by an eddy current, the
spinning black hole generates a gravitomagnetic field whose lines are
emitted from the holes of the black hole. The gravitomagnetic field
inhibits material near the event horizon of the black hole from
falling into the black hole, and forces the material out the poles of
the black hole.
     In this way, the direction of the jet is no more mysterious than
the fact that the solar wind and cosmic rays prefer to arrive in the
upper atmosphere of earth near the earths magnetic poles. The magnetic
field of the earth is pointed nearly straight up at the magnetic
poles. The chaged cosmic rays are not blacked by the magnetic field.
The interaction between magnetic field and solar wind creates the
aurora boreolus.
     One may say that the aurora boreolis is caused by the motion of
electric current at the earths core. However, the effect isn't caused
by centrifugal force. It isn't independent of motion either.