Re: Viewing snowflakes


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Posted by Duncan Blanchard on December 08, 2000 at 13:51:38:

In Reply to: Viewing snowflakes posted by kathy tauber on December 06, 2000 at 12:59:03:

The "special solution" your fellow librarian used was probably that first described by Vincent Schaefer in the March 7, 1941, issue of Science magazine. He used a 1% solution of Formvar resin in ethylene dichloride spread on a microscope slide, and let snowflakes fall into it before it dried. Also, an aerosol spray of fast-drying lacquer can be uxed. Schaefer told about these methods (and where you can get the resin Formvar) to capture snowflakes on page 288 in his 1981 book A Field Guide to the Atmosphere. This book is No. 26 in The Peterson Field Guide Series. I suggest you go to your local bookstore and take a look at the book. Most bookstores will have the Field Guide Series. The second author of the book is John Day. It's a great book with many line drawings and beautiful photographs, many of them in color. Schaefer is best known among atmospheric scientists as the discoverer of dry-ice cloud seeding in 1946. Good luck with your attempts to capture snow crystals.


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