Word: csiro
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Dates: during 1950-1959
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Most of the Australian experiments backed by CSIRO (the Commonwealth Scientific and Industrial Research Organization) have been done with Dry Ice sown from airplanes. Single clouds were seeded and the results watched by radar, which shows the formation of rain inside the cloud. A cloud-seeding was counted as successful only if rain came from the seeded cloud but not from adjacent clouds that were not seeded. When a cloud's temperature was below 19° F., the trick worked every time. Individual clouds dropped as much as ½ in. of rain that would not have fallen naturally...