diff --git a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/42.relativistic-mechanics/10.n1/20.overview/special-relativity-effect-variation-lenths-durations-versus-speed_L1200.jpg b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/42.relativistic-mechanics/10.n1/20.overview/special-relativity-effect-variation-lenths-durations-versus-speed_L1200.jpg
deleted file mode 100644
index 8ccb3fab8..000000000
Binary files a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/42.relativistic-mechanics/10.n1/20.overview/special-relativity-effect-variation-lenths-durations-versus-speed_L1200.jpg and /dev/null differ