diff --git a/data/cs.md b/data/cs.md
index 82c53d82f43f25f25c46df2ca04264f87d6665dd..70d9a4b1eae4f4adb77221cf0553632686e10483 100644
--- a/data/cs.md
+++ b/data/cs.md
@@ -58,3 +58,6 @@ keeping the files to a decent size.
 
 <div class="videowrapper"><iframe width="100%" height="100%" src="https://www.youtube.com/embed/6aBry0CUgVw" frameborder="0" allowfullscreen></iframe>
 </div>
+
+<div class="videowrapper"><iframe width="100%" height="100%" src="https://obswww.unige.ch/~lhausamm/movies/logger_cosmo.mp4" frameborder="0" allowfullscreen></iframe>
+</div>