This is an animated gif I made in Mathematica.

Changed caption:

Real-time evolution of the magnetic field of an oscillating electric dipole. The field lines, which are horizontal rings around the axis of the vertically oriented dipole, are perpendicularly crossing the x-y-plane of the image. Shown as a colored contour plot is the z-component of the field. Cyan is zero magnitude, green–yellow–red and blue–pink–red are increasing strengths in opposing directions.

However, inspection of the Mathematica code revealed that the far-field approximation has been used. Please consider to delete this file. – Rainald62 (talk) 14:49, 9 October 2010 (UTC)