Why does rain smell like rain? Scientists may have the answer - Spokane, North Idaho News & Weather KHQ.com

Why does rain smell like rain? Scientists may have the answer

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MIT researchers used high-speed cameras to study raindrops. Photo: YouTube MIT MIT researchers used high-speed cameras to study raindrops. Photo: YouTube MIT
The smell of rain is one of the most refreshing smells there is. In fact, there's even a word for it: Petrichor. But what causes petrichor to happen? Researchers at the Massachusetts Institute of Technology recently used high-speed cameras to discover the answer.


In a video posted on MIT's YouTube channel, it's explained that when a raindrop hits the earth, it traps tiny air bubbles at the point of contact, which then shoot off the raindrop as fizzy aerosols. Researchers think the fizzy bubbles could carry aromatic elements which are spread by gusts of wind.


Watch the video above for more on how this research can be used.

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