Snowflake cultivation
See Ryan Teague music video vimeo.com/43607491
and the making of video vimeo.com/43401639
I've been commissioned by Jason Tozer (www.jasontozer.com) to build a system for making snowflakes with the goal to produce a stop motion film of their growth. For a number of years I've been following the Caltech group (www.its.caltech.edu/~atomic/snowcrystals/designer1/design...) who specialize in the study of ice crystallization. Jason's request is a great excuse to try it out. I have four weeks to make equipment before Jason arrives to film the action. I've built the cooling system. The photo shows a peltier cooler cut out of an old Colemans ice box. This can cool down to about -10C when air cooled. I've converted the heat exchanger for liquid cooling and this is fed by an old lab chiller set to -20C. The combination of the two stage system achieves the desired -50C needed to grow the flakes. The chamber creates a gradient form +40 to -40C. The Caltech example is shown here www.its.caltech.edu/~atomic/snowcrystals/designer1/versn2.... Here is another example from Professor Shepson at Purdue www.chem.purdue.edu/shepson/snowflake.html. There is no guarantee that any of this will work but at least there is plenty of entertainment in trying. I'll post up-dates as I go along.
28 photos · 16 videos · 4,937 views