X-Received: by 2002:a05:6214:1d07:b0:461:e79d:4cd9 with SMTP id e7-20020a0562141d0700b00461e79d4cd9mr2471346qvd.87.1652858825630; Wed, 18 May 2022 00:27:05 -0700 (PDT) X-Received: by 2002:a05:690c:9e:b0:2e9:b625:1be2 with SMTP id be30-20020a05690c009e00b002e9b6251be2mr30305038ywb.48.1652858825216; Wed, 18 May 2022 00:27:05 -0700 (PDT) Path: ...!weretis.net!feeder6.news.weretis.net!usenet.blueworldhosting.com!feed1.usenet.blueworldhosting.com!peer01.iad!feed-me.highwinds-media.com!news.highwinds-media.com!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mail Newsgroups: fr.sci.physique Date: Wed, 18 May 2022 00:27:04 -0700 (PDT) In-Reply-To: <62849d66$0$9135$426a34cc@news.free.fr> Injection-Info: google-groups.googlegroups.com; posting-host=2a01:e0a:1df:790:3441:264d:92a:52f7; posting-account=w5jTyQoAAABC2srlPP05kfcSlYpQVSR8 NNTP-Posting-Host: 2a01:e0a:1df:790:3441:264d:92a:52f7 References: <123d1f0e-061c-4d48-9d58-f5fd295c9c69n@googlegroups.com> <7e74ef5b-bf37-450c-a3d3-68330b0db6ebn@googlegroups.com> <62849d66$0$9135$426a34cc@news.free.fr> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <29f312a4-0ee0-47db-ba9b-cd63ca399469n@googlegroups.com> Subject: Re: Insaisissable photon (et pour cause...) From: Quarkim Injection-Date: Wed, 18 May 2022 07:27:05 +0000 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Received-Bytes: 2251 Bytes: 2536 Lines: 19 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.