After rain smell caused by ‘champagne effect’

January 21, 2015 12:39 AM

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After rain smell caused by ‘champagne effect’

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. Courtesy MIT.

IT’S A smell as familiar to Australians in summer as sunscreen and barbecues.

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