Scientists Produce Rigorous Study of Why Grapes Spark in the Microwave

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A paper published Monday in a well-known science journal begins with the following sentence: “It is a truth universally acknowledged that a pair of grape hemispheres exposed to intense microwave radiation will spark, igniting a plasma.” A universally acknowledged truth indeed… but what causes this microwave marvel?

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https://gizmodo.com/scientists-produce-rigorous-study-of-why-grapes-spark-i-1832660386