rotating growing icicle with multiple tips

A time lapse movie of an icicle growing from a rotating support. The total growth time is about 10 hours and the support rotates once every 4 minutes. Tap water and still air were used.

 

The icicle shows the growth of multiple tips and a rippling instability.

 

See

www.physics.utoronto.ca/nonlinear/papers_icicles.html

Done