What are silver iodide crystals used for in cloud seeding?
1 Answer
Oct 20, 2016
Silver iodide crystals are hygroscopic; they attract water particles and form tiny ice crystals around the particles that then fall as rain.
Explanation:
Cloud seeding uses a variety of materials that are hygroscopic (water absorbing/attracting) in nature.
Silver iodide, one such hygroscopic substance, draws water particles to it and in the upper reaches of the atmosphere, these form tiny ice crystals.
The crystals, being heavy, start to fall, causing rainfall.
