Alexandr A.Shpilman (alexandrshpilman78@gmail.com )
SchizoRoom for physicists
In traditional education
teachers frequently do not understand what they are teaching so students do not
understand what they should remember but they have strong Belief that overseas
knowledge’s is completely confirmed by
practice. Let’s try to force us to doubt in the last based on the paradoxes.
“The Unsupported Driver” from “The Homopolar generator”
The design of "the “ Homopolar
generator “ is widely known It is possible to find in Internet and It is possible to find in
Internet and in textbooks a set of standard explanations of its work, follows
that on surface of rotating cylindrical magnet appear electric chargers one or
other polarity, depending on a rotation and magnetic field direction.
Now present that in
on radius of a cylindrical magnet we drill a small hole in which it is inserted
a superconducting tube. Through this tube the electric wire connecting a
surface of the cylinder with its axis as it is shown in drawing is passed. Blue
colour designates a superconducting tube, yellow - a
conductor in a tube.
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Victor Kachan's drawing
The
superconducting tube pushes out a magnet magnetic field. In it it is not present. The homopolar generator with the closed
electric circuit is as a result received. Basically, we can include an electric
bulb in an electric circuit, expecting that it will be shone.
With the law of conservation of energy all ok. But
with the law of preservation of moment impulse there are problems. (Imagine a
space vehicle with such homopolar generator. With it it is possible to change
any way a direction and speed of rotation of the artificial Earth without
spending fuel in jet engines.)
It is possible to expect solutions of paradox standard
sending to relativistic effects according to the special theory of a relativity
…
Let's try to
imagine, you motionlessly sit in a certain area in the presence of a magnetic
field, and nearby, out of a magnetic field, by you, the metal subject is
carried by and the electric potential on it concerning you for some reason
depends on intensity of a magnetic field in which you be …
The relativistic mysticism.
(The help
- paradox is not present if to operate not with concept of a magnetic field,
but concept of magnetic vector potential. It already absolutely other
understanding of "electrodynamics".)
Electric conductor in a
magnetic field
The example of movement of a conductor across a
magnetic field is widely known on the school physics. Now attention MAGIC
TRICKS!!!
We take a piece of a superconducting coaxial cable. On
the ends we close the central core and a braid. Now this piece we start to move
in a magnetic field. On idea between the ends of a braid of a wire there should
be a difference of electric potentials, but they are closed between themselves
the central core. So movement in a magnetic field will induce toroidal a current in a coaxial cable.
Here like all Ok (though in a reality not so). Energy
of movement of a cable will be transformed to internal energy. And movement in
the opposite direction removes the saved up energy outside … In what quality?
In anywhere? (Toroidal electric currents do not
create a magnetic field out of a superconducting cable.)
And still
wonderful, it is simple slowly moving the described piece of a coaxial cable in
a magnetic field, in one direction, it is possible to
increase in it an electric current infinitely.
The possible objection - a magnetic field does not get
into a superconductor also differences voltage on its ends will not be. In such
variant. We lay in parallel usual and superconducting conductors and it is
connected their ends. And again we will receive the closed electric circuit in
which the electric current will be induced.
It is possible to replace a superconducting
braid of a cable with the several enclosed iron tubes which will shield the
central core of a cable
from an external magnetic field and to close on itself the basic part of a
magnetic field induced by currents the most central core.
We sit in some area in the presence of a magnetic
field. We touch nobody, but it is probable, we is movable and we have some superfluous
electric charge concerning stars on the brink of the Universe therefore us and
winds on a circle?...
(Besides,
a problem of the theory of movement of electric charges in a magnetic field in
the special theory of a relativity.)
Let's put, we have a long tube of the magnetic field,
extended along axis Z in which the magnetic field is concentrated in
walls of a tube and has only an azimuthal component. Let's put, the magnetic
field and magnetic vector potential of a tube are homogeneous and invariable
along axis Z.
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If electron will move in tube walls in a direction of
axis Z Lorentz's force will be directed from the tube center. Remains
small how to define moves electron or not? Concerning what moves or does not
move, if is not present what reference points along axis Z? If speed electron
is not defined, Lorentz's force is not defined.
It turns out, if the
Relativity Theory is true, our notion about a magnetic field and magnetic
vector potential is convenient theoretical models under some private task?
