Update topic.en.md

5 years ago · 3e25a15bea
1 changed files with 2 additions and 0 deletions
--- a/01.curriculum/01.physics-chemistry-biology/01.niv1/05.waves-corpuscules/topic.en.md
+++ b/01.curriculum/01.physics-chemistry-biology/01.niv1/05.waves-corpuscules/topic.en.md
@ -1,4 +1,6 @@
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 title: 'I observe the ball and the waves : what differences and similarities?'
+published: false
+visible: false
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