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. (Learn more: http://bit.ly/1wZYXy5)
The researchers suspect that in natural environments, aerosols may carry aromatic elements, along with bacteria and viruses stored in soil. These aerosols may be released during light or moderate rainfall, and then spread via gusts of wind.
Video produced and edited by Melanie Gonick/MIT
High-speed droplet footage by Youngsoo Joung
Rain falling and bubbles in glass footage: Pond5.com
Music sampled from "Running Waters" by Jason Shaw
סרטונים קשורים (Rainfall can release aerosols, high-speed video shows)