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Newsgroups: fr.sci.physique
Date: Wed, 18 May 2022 00:27:04 -0700 (PDT)
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Subject: Re: Insaisissable photon (et pour cause...)
From: Quarkim <chakim555@gmail.com>
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Le mercredi 18 mai 2022 =C3=A0 09:16:56 UTC+2, robby a =C3=A9crit=C2=A0:
> tr=C3=A8s classique.
> Le 18/05/2022 =C3=A0 04:13, Quarkim a =C3=A9crit :=20
> > Question a: le rayon laser est-il droit ou courb=C3=A9?
> spirale, comme si tu tournait un jet d'eau
> > Question b: la vitesse du point rouge balayant le mur est-elle =C3=A9ga=
le ou sup=C3=A9rieure =C3=A0 c?
> sans probl=C3=A8me, vu que =C3=A7a n'est pas un objet mat=C3=A9riel ( i.e=
.. pas une=20
> information qui partirait de la tache A vers la tache B ). idem pour une=
=20
> ombre ou un reflet.
> > Question c: le point rouge balayant le mur d=C3=A9crit-il une ligne rou=
ge circulaire continue ou discontinue?
> =C3=A7a d=C3=A9pend si ton laser =C3=A9met en continu ou pas ;-)=20
>=20
>=20
> --=20
> Fabrice
Ok merci, je suis arriv=C3=A9 aux m=C3=AAmes r=C3=A9ponses.