In a Warrenton, Virginia garage an 18-year-old Kettle Run High School student named Mia Heller built a membrane-free water filter the size of a bag of flour, three modules, one litre a pass, and her turbidity sensor logged 95.52% of microplastics pulled out by magnetic oil.https://www.reddit.com/r/technology/comments/1w80di4/in_a_warrenton_virginia_garage_an_18yearold
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