Chain reactions

We build a simple bubbles chain_ reaction together with Nan Wang
What is the bubble?
A thin sphere of liquid enclosing air or another gas.
When two bubbles meet, they will merge walls to minimize their surface area. If bubbles that are the same size meet, then the wall that separates them will be flat. Bubbles united in shape forming walls at an angle of 120°. If enough bubbles meet, the cells will form hexagon - a chains of bubbles.
We added conditions or different substances to the pure transparent bubbles to see what would it happen? How the chain behaves - autonomously or dependently? Is it possible to be triggered… shaped or destroyed manually?

>add smoke:
enclose, absorb the smoke
>add color:
draw a stroke // fillStroke
> smoke + color

video_ http://vimeo.com/52297001