This is an excerpt from Judah Schwartz's film on Moving Charges made at the Educational Research Centre at MIT and distributed by Harper & Row.
It shows a charge moving backwards and forwards at a speed approaching the speed of light. The field around the charge away from the charge is unaware that the charge has changed direction.
These have an artistic beauty independent of the content of the film.
Moving Charges Excerpt
Judah Schwartz, Harry Schey and Abraham Goldberg had started working on similar films from as early as 1965/66 at the Lawrence Radiation Laboratory. An early film was Scattering of Quantum Mechanical Wave Packets from Potential Well and Barrier.
Judah Schwartz had two sabbatical stays at the Atlas Computer Laboratory animation group in the UK. The first was in 1971.