Article View: sci.physics.relativity
Article #479Re: HOW EINSTEIN USED MAXWELL
From: .. Wilson DSc
Date: Sat, 08 May 2010 22:06
Date: Sat, 08 May 2010 22:06
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3411 bytes
On Sat, 08 May 2010 07:59:11 -0500, Marvin the Martian <marvin@ontomars.org> wrote: >On Fri, 07 May 2010 15:20:43 -0700, PD wrote: > > >>> The idea that light speed is always measured as being c is a direct >>> consequence of Lorentz's 'contraction' idea. >> >> No, you've got cart before the horse. Lorentz contraction is a direct >> consequence of light speed always being measured as being c. What you >> said is exactly backwards. > >The Lorentz transformation is the transformation that holds Maxwell's >equations invariant under a transformation in velocity. > >The laws of physics should be the same regardless of the velocity of the >observer. In other words, the equations need to be of the same form for >all observers regardless of the velocity of the observer. Newton's laws >transform quite well under a Galilean transformation, but Maxwell's >equations don't. > >So Lorentz and others worked the problem to find under what >transformation Maxwell's equations DO transform under, and the answer is >now called the Lorentz transformation. The Lorentz transformation IS >Special Relativity. > >Do Maxwell's equations presume a medium? No. However, one starts with >Maxwell's equations to derive the wave equation, which very much looks >like the classical equation of a wave, which suggests a medium. > >They looked for a medium, using what they thought should be the >characteristics of that medium, and came up with squat. However, >Maxwell's equations and the Lorentz transform STILL makes useful >predictions. ...and you don't Henry Wilson... .......A relativist's IQ = his snipping ability.
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X-Google-Thread: 237b8ad48,e17dad18d26e7f0c X-Google-Attributes: gid237b8ad48,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news2.google.com!news2.google.com!npeer02.iad.highwinds-media.com!news.highwinds-media.com!feed-me.highwinds-media.com!nx01.iad01.newshosting.com!newshosting.com!198.186.194.249.MISMATCH!transit3.readnews.com!news-xxxfer.readnews.com!news-out.readnews.com!transit4.readnews.com!teleglobe.net!news.linkpendium.com!news.linkpendium.com!pit-transit.telstra.net!news.telstra.net!news-server.bigpond.net.au!53ab2750!not-for-mail From: ..@..(Henry Wilson DSc) Newsgroups: sci.physics.relativity,sci.physics,fr.sci.physique,fr.sci.astrophysique Subject: Re: HOW EINSTEIN USED MAXWELL Reply-To: hw@.. Message-ID: <12obu55k07o933c8sv769ucevau383772v@4ax.com> References: <pci4u5dqtkilnss2bqalta3tkcp47ctv16@4ax.com> <bsidnVwJ7sNyfH_WnZ2dnUVZ_uOdnZ2d@giganews.com> <52d6u5de7v4nqikmrm88olbfl85f83hah4@4ax.com> <f6-dnQATc9DRwX7WnZ2dnUVZ_qmdnZ2d@giganews.com> <1e37u5pkhf30ncknd0t3tkml3h0q3rf2um@4ax.com> <2ef669aa-9d2a-4c6e-8b8d-f8484ed7728d@37g2000yqm.googlegroups.com> <r719u5d7hule57jdfsp85chukbpevutugd@4ax.com> <af682686-f373-4255-ab8f-0a20b896dab7@q33g2000vbt.googlegroups.com> <z8-dnZB2ZL-C_XjWnZ2dnUVZ_oepnZ2d@giganews.com> X-Newsreader: Forte Free Agent 2.0/32.652 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lines: 42 Date: Sat, 08 May 2010 22:06:03 GMT NNTP-Posting-Host: 203.51.1.4 X-Complaints-To: abuse@bigpond.net.au X-Trace: news-server.bigpond.net.au 1273356363 203.51.1.4 (Sun, 09 May 2010 08:06:03 EST) NNTP-Posting-Date: Sun, 09 May 2010 08:06:03 EST Organization: BigPond Internet Services