{"id":"S85052594","label":"Fusion","description":"Here are entered works on the change of the state of a substance from the solid phase to the liquid phase. Works on the nuclear reaction between two light nuclei to form a heavier nucleus with release of binding energy are entered under [Nuclear fusion.] Works on the transition from a frozen to an unfrozen state by warming are entered under [Thawing.]","source_url":"https://id.loc.gov/authorities/subjects/sh85052594","normalized_label":"fusion","broader":["http://id.loc.gov/authorities/subjects/sh85023027"],"aliases":["Melting"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85052594","provider":"lcsh","revision":"380f50a0be9809ae","taxonomy_revision":"f050b5d4780b1289","title":"Fusion","url":"/topics/S85052594","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10088208592907141696","address_version":"morton4x16-v1","coordinates":[0,20,18226,51200],"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}