diff --git a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/42.relativistic-mechanics/textbook.fr.md b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/42.relativistic-mechanics/textbook.fr.md
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+---
+title: relativistics mechanics
+published: true
+routable: true
+visible: false
+---
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