diff --git a/01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/07.optical-instruments-design/05.refracting-telescope/02.new-course-overview/cheatsheet.fr.md b/01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/07.optical-instruments-design/05.refracting-telescope/02.new-course-overview/cheatsheet.fr.md
index 5f99d324f..209a632a4 100644
--- a/01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/07.optical-instruments-design/05.refracting-telescope/02.new-course-overview/cheatsheet.fr.md
+++ b/01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/07.optical-instruments-design/05.refracting-telescope/02.new-course-overview/cheatsheet.fr.md
@@ -45,7 +45,9 @@ Notamment le signe "-" si les angles sont notés en valeur non algébrique..
 
 ![](lunette_astro_grossissement_v2.gif)
 
+<!--a supprimer
 animation : https://www.geogebra.org/m/ajmh4crf
+-->