pinball with lorentz force

[arit]

Hi all,

please find attached an implementation of the lorentz force (F=q(E+v x B) ) in blender. There are two files in the zip:

lorentzdemo01.blend - use x,y and z to add velocity in the corresponding direction

lorentz pinball.blend - use space to plunge the charged ball, and alt and cmd to use the flippers. Magnetic field is in the same direction as gravity, leading to bend curves on the table.

One question: when running lorentzdemo01.blend the sphere disappears after a while. Any idea why?

Cheers,

arit