Topics include: Irving Langmuir’s contributions to meteorology; 1947 cloud seeding experiment (Vince Schaefer); Thunderstorm Project; US Weather Bureau and efficacy of seeding; seeding project with Workman in New Mexico; attempt to modify hurricanes; project (Puerto Rico) to initiate precipitatio... Show moreTopics include: Irving Langmuir’s contributions to meteorology; 1947 cloud seeding experiment (Vince Schaefer); Thunderstorm Project; US Weather Bureau and efficacy of seeding; seeding project with Workman in New Mexico; attempt to modify hurricanes; project (Puerto Rico) to initiate precipitation through water drop seeding; Bergeron hypothesis of rain formation; Project White Top; Langmuir’s theory of rain production by chain reaction in clouds; Weather Bureau response to Langmuir; recollections of Langmuir, Workman, Schaefer, Vonnegut, Wallace Howell, Horace Byers; origin of the University of Arizona atmospheric science department (Lou Douglas’ involvement, and Krick). Oral history interview with Roscoe Braham, 2002. Interviewed by Stephen Cole. 1 sound cassette (ca. 2 hrs.) : analog, mono + transcript (31 pgs.). AMS 216; four physical versions (one master, three copies). Forms part of American Meteorological Society Oral History Project. Show less