Rainfall can release aerosols, high-speed video shows - YouTube
▻https://www.youtube.com/watch?v=Waqmq_GTyjA
Using high-speed cameras, MIT researchers observed that when a raindrop hits a surface, it traps tiny air bubbles at the point of contact. As in a glass of champagne, the bubbles then shoot upward, ultimately bursting from the drop in a fizz of aerosols.
▻http://io9.com/high-speed-video-reveals-the-source-of-that-incredible-1679834126
▻http://www.nature.com/ncomms/2015/150114/ncomms7083/full/ncomms7083.html