Full screen applet v8 with hints and text of node and anti-nodes
Full screen applet v7 with pen representation
IJC has gone to populate the lesson ideas shared here https://sites.google.com/site/ijcsuperposition/
YJC lesson http://weelookang.blogspot.com/2012/03/ripple-tank-yjc.html
RVHS lesson term 3!
My analysis of the lesson http://weelookang.blogspot.com/2012/02/ejs-open-source-ripple-tank.html
(1150k) used by students in IJC and YJC
(1171k) for scaling, with enhancements like legends, dt =smaller smoother curve. etc