Sergey Karavashkin: 
 >"Franz Heymann" <notfranz.heymann@btopenworld.com> wrote:
 
 >> If you think I am going to read any of all your recommended URL's, you are
 >> gravely mistaken.
 >> If you cannot understand that
 >> curl(grad(phi)) = 0, {Where phi is any scalar function of position)
 >> is a universal truth, then nothing more which you might have to say is
 >> useful except except to poke fun at.
 >> 
 >> Franz
 >
 >Pity you, Franz. You can think whatever, but if you don't see, where
 >to the gradient of potential in my animation is directed, it is really
 >useless for you to read all the rest. Spend your time among mushrooms.
 >;-)

  Only a complete nutcase would claim that he discovered a violation
of a mathematical identity.


  \nabla x (\nabla\Phi) = e_ijk \nabla_i\nabla_j\Phi

                        = \nabla_i\nabla_j\Phi - \nabla_j\nabla_i\Phi

                        = (\nabla_i\nabla_j - \nabla_j\nabla_i)\Phi

                        = 0

Tell me. What's next on the selflab agenda? Do you plan to show that
sin^2 + cos^2 != 1 for "dynamic fields"?