Rain + Aerosols

02023-03-23 | Rain Music | 1 comment

Ever notice an earthy smell in the air after a light rain? Now scientists at MIT believe they may have identified the mechanism that releases this aroma, as well as other aerosols, into the environment.

Using high-speed cameras, the researchers observed that when a raindrop hits a porous 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.
Rainfall can release aerosols, study finds | Massachusetts Institute of Technology

Also this post about terroir.

1 Comment

  1. JaneParham

    I love the intense curiosity of scientists! And don’t you love their comparing the bursting rain bubbles to a glass of champagne! MIT is especially fun (my first husband went to MIT.)

    But, I digress! That rain earthy smell is in my top 5 favorite aromas.


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