Bernard Vonnegut

Bernard Vonnegut (August 29, 1914 – April 25, 1997) was an American atmospheric scientist credited with discovering that silver iodide could be used effectively in cloud seeding to produce snow and rain.

[1] In 1945, Vonnegut started work at the General Electric Research Laboratory in Schenectady, New York.

It was there, on November 14, 1946, that he discovered that silver iodide could be used as a nucleating agent to seed clouds.

Rain- and snow-making companies still use silver iodide as a nucleating agent in seeding clouds.

[2] He was awarded an Ig Nobel Prize in 1997 for his paper "Chicken Plucking as Measure of Tornado Wind Speed.