At the top of the cited wiki page, it starts with the simplifying
assumption of *point* charges. Perhaps the discrepancy would disappear
with a more realistic model of charges. I dunno. Ask a mathematician.

Harry

On Fri, Mar 2, 2012 at 11:03 AM, David Roberson <[email protected]> wrote:
> I imagine that Newton's laws would be difficult to understand in certain
> coordinate systems but that does not suggest that they fail to function.
> Are you implying that the laws of physics work or not depending upon the
> view point?  I contend that the real world does not care what coordinate
> system we select to observe it as our choice is merely for our convenience.
> Maybe we are not discussing the same issue.
>
> Dave
>
>
> -----Original Message-----
> From: James Bowery <[email protected]>
> To: vortex-l <[email protected]>
> Sent: Fri, Mar 2, 2012 3:45 am
> Subject: Re: [Vo]:Physice depends on choice of coordinates
>
> Newton's laws in spherical coordinates....
>
> Sure... why not?
>
> Give it a try and report back.
>
> On Wed, Feb 29, 2012 at 10:26 PM, David Roberson <[email protected]> wrote:
>>
>> I do not agree that the choice of coordinate systems changes the physics
>> of any experiment.  I only see the coordinate system chosen as a way to
>> locate the position and other position derivatives of a body.
>>
>> Could you explain how the Madelung constant would relate to real world
>> effects?
>>
>> Dave
>>
>>
>> -----Original Message-----
>> From: David Jonsson <[email protected]>
>> To: vortex-l <[email protected]>
>> Sent: Wed, Feb 29, 2012 6:42 pm
>> Subject: [Vo]:Physice depends on choice of coordinates
>>
>> Hi
>>
>> The wish and desire of having physics independent of coordinate system can
>> not be met nor fulfilled. The Madelung constant is proof of this. It becomes
>> divergent in spherical coordinates and convergent in cubic coordinate.
>> Covariance can thus be forgotten.
>>
>> Check
>> http://en.wikipedia.org/wiki/Madelung_constant
>>
>> Are there any other examples of this effect where choice of coordinate
>> system gives different values?
>>
>> David
>>
>>
>> David Jonsson, Sweden, phone callto:+46703000370
>>
>>
>>
>>
>>
>

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