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
