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394 Blackest Fabric Ever Made Absorbs 99.87% of All Light That Hits It

Slashdot
BeauHD @ Slashdot · 12/05/2025 21:02 EDT

Blackest Fabric Ever Made Absorbs 99.87% of All Light That Hits It

alternative_right shares a report from ScienceAlert: Engineers at Cornell University have created the blackest fabric on record, finding it absorbs 99.87 percent of all light that dares to illuminate its surface. [...] In this case, the Cornell researchers dyed a white merino wool knit fabric with a synthetic melanin polymer called polydopamine. Then, they placed the material in a plasma chamber, and etched structures called nanofibrils -- essentially, tiny fibers that trap light. "The light basically bounc

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