I found the original, 1873 version of Maxwell's equations. The four space quaternion versions not the Gibbs - Heaviside mapping on to three space. Yes, something was lost in translation. Very interesting book.
http://posner.library.cmu.edu/Posner/books/pages.cgi?call=537_M46T_1873_VOL._1 and http://posner.library.cmu.edu/Posner/books/book.cgi?call=537_M46T_1873_VOL._2 An interesting winter's read. 73, Kevin. KD5ONS On Sun, 06 Mar 2011 16:06:50 -0800, Mike Markowski <[email protected]> wrote: > Kevin and all, > > Check out the wiki page > > http://en.wikipedia.org/wiki/Maxwell%27s_equations > > and about halfway down look for the section named "A Dynamical Theory of > the Electromagnetic Field" where it talks a little about it. In short, > Cartesian vs vector! > > 73, > Mike ab3ap > > On 03/06/11 17:37, Kevin Rock wrote: >> I have always wondered how he condensed the original twenty equations in >> twenty unknowns down to just four of them. The quaternions he used >> initially were out a favor with the physics community of the day so he >> needed to get them into vector form. Heaviside did a good job but how >> do >> you characterize a system with twenty unknowns in four equations? What >> has been lost in the translation? >> Kevin. KD5ONS > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
