{"id":"S85042180","label":"Electromagnetic waves--Diffraction","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85042180","normalized_label":"electromagnetic waves--diffraction","broader":["http://id.loc.gov/authorities/subjects/sh85037928"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85042180","provider":"lcsh","revision":"ab1a938e7c576ed2","taxonomy_revision":"f050b5d4780b1289","title":"Electromagnetic waves--Diffraction","url":"/topics/S85042180","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"290486849963950592","address_version":"morton4x16-v1","coordinates":[0,20,18064,4096],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}