[Elecraft] Maxwell's Equations.

[Kevin Rock]

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 <mike.ab3ap at gmail.com>  
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
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