Today is the birthday of atmospheric scientist Vincent Schaefer, born in 1906. As a scientist at General Electric in Schenectady, New York, he invented cloud seeding, a method of seeding super-cooled clouds with dry ice. He discovered the concept quite by accident in a lab in 1946. On November 13 of that year, he field-tested this technique by going up in a small airplane and scattering crushed dry ice into super-cooled clouds. Low and behold, it began to snow. Cloud seeding could be used to make it rain, too, but it turned out to be impractical as you can’t aim a cloud and force it to rain anywhere you want. Still, some airports do use the technique today to dissipate ice fog that occurs in winter.
Schaefer, who was self-educated and never attended college, accomplished many other things, too, including: holding 14 patents; helping to found and later serving as the director of the Atmospheric Sciences Research Center at the State University of New York at Albany; co-writing the Peterson A Field Guide to the Atmosphere; establishing the Natural Sciences Institute (NSI), a summer program for gifted high-school students who yearned to become scientists (one of the NSI campuses was at the Huyck Preserve); and fighting for the preservation of natural areas, including the Huyck Preserve where he served on the board of directors for many years.
You can read more about this remarkable man’s life at my blog post: https://lscnews.wordpress.com/2013/03/17/vincent-j-schaefer-1906-1993/