I have revised the script at the jwiki link so that the turtles do not flip over, but just reverse their direction. That results in a much smoother simulation, but the slow drifts of all the turtles into deeper negative z direction is more noticeable.
'90 main 9' has worked on Chrome for me. (That's 90 ticks for 9 turtles). -- (B=) ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
