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Newsgroups: fr.sci.physique
Date: Wed, 25 Aug 2021 00:48:20 -0700 (PDT)
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Subject: =?UTF-8?Q?Re=3A_Radiation_et_acc=C3=A9l=C3=A9ration_de_l=27=C3=A9lectron?=
From: Florentis <florentmerlet73@gmail.com>
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Tu =C3=A9parpilles le sujet : tu as affirm=C3=A9 ceci :
" En relativit=C3=A9 galil=C3=A9enne, un champ variable dans le
temps et statique dans l'espace restera statique dans tout autre
r=C3=A9f=C3=A9rentiel "

Or je vois que, en m=C3=A9ca flux, un champ pris en description lagrangienn=
e ne d=C3=A9pend que du temps, tandis que, s'il est pris en description Eul=
=C3=A9rienne, il varie dans le temps et l'espace.=20

C'est de l=C3=A0 on tire la d=C3=A9finition de la d=C3=A9riv=C3=A9e particu=
laire.