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Article #16378Re: Speed of light is variable says Einstein
From: Oncle Dom
Date: Sun, 16 Sep 2007 18:37
Date: Sun, 16 Sep 2007 18:37
32 lines
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2611 bytes
DDP3000@gmail.com dans son message 1187486327.521094.68680@w3g2000hsg.googlegroups.com, nous a fait l'honneur d'�crire: > Measured light speeds: > Birge, 1929, 299.796 km/sec > Mittelstaedt, 1928, 299.778+-20 > Michelson et al., 1932, 299.774+-11 Michelson died on 1931 alii were Pease and Pearson > Michelson et al., 1935, 299.774+-4 > Anderson, 1937, 299.771+-10 > Huttel, 1940, 299.771+-10 > Anderson, 1941, 299.776+-6 > Birge, 1941, 299.776+-4 > Dorsey, 1945, 299.773+-10 Better mesures appears after 1947 > Since 1972 the speed of light is DEFINED at 299.792.458+-0.001, NOT > measured. No effort to measure the speed will be made since then. Some others mesasures were made, according to the BIPM > Moreover, the meter and second are both defined based on the speed of > light, so no change in the speed of light can be measured anymore! Of course The complete story since Emp�docle, is here http://perso.orange.fr/oncle.dom/astronomie/histoire/mesure_de_c/mesure_ c.htm -- Oncle Dom _________ http://perso.orange.fr/oncle.dom/
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X-Google-Thread: 10b271,66145f633ff3a23c X-Google-Thread: 10f545,66145f633ff3a23c X-Google-Thread: 103d8c,66145f633ff3a23c X-Google-Thread: fa4c1,5d725dc22cea8bd5 X-Google-Thread: f74ae,5d725dc22cea8bd5 X-Google-Attributes: gid10b271,gid10f545,gid103d8c,gidfa4c1,gidf74ae,public,usenet X-Google-Language: ENGLISH,ASCII Path: arc1-ca.pugleaf.net!g2news2.google.com!news3.google.com!proxad.net!feeder1-2.proxad.net!193.252.118.146.MISMATCH!news.wanadoo.fr!news.wanadoo.fr!not-for-mail From: "Oncle Dom" <dom.caudron@wanaNULLdoo.fr> Newsgroups: sci.physics,sci.physics.relativity,de.sci.physik,fr.sci.physique,sci.astro References: <f9h17k$ndp$2@aioe.org> <2Z_ui.27237$RX.20115@newssvr11.news.prodigy.net> <23223.4B1a5.88062.40534.85318@quantumworldz.com> <LGnvi.3258$i85.661@nlpi061.nbdc.sbc.com> <1186897733.841438.76070@k79g2000hse.googlegroups.com> <1187486327.521094.68680@w3g2000hsg.googlegroups.com> Subject: Re: Speed of light is variable says Einstein Date: Sun, 16 Sep 2007 20:37:14 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Lines: 33 Message-ID: <46ed76f3$0$5112$ba4acef3@news.orange.fr> Organization: les newsgroups par Orange NNTP-Posting-Date: 16 Sep 2007 20:33:23 CEST NNTP-Posting-Host: 86.208.127.95 X-Trace: 1189967603 news.orange.fr 5112 86.208.127.95:1762 X-Complaints-To: abuse@orange.fr