Użytkownik "bartekltg" <b...@g...com> napisał w wiadomości
news:jpj9ob$fbl$1@node2.news.atman.pl...
>W dniu 2012-05-23 19:57, Szczepan Bialek pisze:
>
>>
>> Ja mam na mysli "longitudinal force" i elektrodynamiki inne niz ta
>> szkolna
>> EM napisana przez inz. Heaviside.
>>
>> Fizycy przez grzecznosc nawet nie wspominaja o EM:
>> http://www.df.lth.se/~snorkelf/Longitudinal/node4.ht
ml
>
>
> Prośba była wyraźna. Prosiliśmy o eksperyment, nie 'interpretacje'.
> Elektrodynamika przewiduje poprawnie siły działające na drut. Tyle.
>
> A te pierdółki z silą podłużną... weź sobie Prawo Biota-Savarta,
> połącz to ze wzorkiem na siłę elektrodynamiczną (dF = I dl (x) B ).
> Nie wyjdzie podobnie? To samo?

Wyjdzie to samo dla drutow rownoleglych. Dla prostych ale zwichrowanych juz
nie.

Jestes ofiara niefortunnego wyboru:
"1825 - Ampere publishes his collected results on magnetism. His
expression for the magnetic field produced by a small segment of current is
different from that which follows naturally from the Biot-Savart law by an
additive term which integrates to zero around closed circuit. It is
unfortunate that electrodynamics and relativity decide in favor of Biot and
Savart rather than for the much more sophisticated Ampere, whose memoir
contains both mathematical analysis and experimentation, artfully blended
together. In this memoir are given some special instances of the result we
now call Stokes theorem or as we usually write it. Maxwell describes this
work as ``one of the most brilliant achievements in science. The whole,
theory and experiment, seems as if it had leaped, full-grown and full-armed,
from the brain of the `Newton of electricity'. It is perfect in form and
unassailable in accuracy; and it is summed up in a formula from which all
the phenomena may be deduced, and which must always remain the cardinal
formula of electrodynamics.''
Z: http://www.electricityforum.com/a-timeline-of-histor
y-of-electricity.html

Nie musisz znac tych "sophisticated". Heaviside stworzyl model zupelnie
oderwany od fizyki ale z wzorami matematycznymi. Okresla sie to jako "piece
to teach".
Podobna role pelni model atomu Bohra i chyba cala reszta z programu
nauczania.
S*