Brainstuff

Petrichor is the name for that fresh, sweet, earthy smell after it rains. Learn what causes petrichor in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/nature/climate-weather/atmospheric/question479.htm Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.