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Title: What gives summer rain its distinct odor? Written by: duddy on Jan 19, 2015 (https://biology-forums.com/gallery/47/4_19_01_15_10_33_31.jpeg) (https://biology-forums.com/index.php?action=gallery;sa=view;id=20172) High-speed video footage has captured for the first time, what researchers say are hundreds of tiny aerosol particles being released from raindrops when they impact with soil. https://www.youtube.com/watch?v=Waqmq_GTyjA The mechanical engineers at the Massachusetts Institute of Technology, who observed the aerosol release in action, say it could account for the earthy smell that accompanies rain after a long dry spell. Source: http://www.sciencealert.com/watch-raindrops-releasing-aerosols-during-slow-motion-impact |