From Terry Walsh (http://reallyslick.demonews.com):
"This is a simulation of the electric field lines between charged particles. Physics never looked so good."
Ported to Linux by Tugrul Galatali.
OPTIONS
--root
Draw on the root window.
--maxfps number
Set maximum frame rate.
--nice
Idle between frames using select(), or, if --maxfps is specified, idle in the fps limiting delay loop.
Fieldlines is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.
Fieldlines is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.