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A comment on Sound waves used to separate microplastics from laundry wastewater. Parent comment

Re:Sound waves used to separate microplastics from laundry w... by dang on Sunday December 15, 2019 @07:25PM (#21799934)
Please don't be a jerk on HN, no matter how right you are about an article.

https://news.ycombinator.com/newsguidelines.html

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