<iframe src="https://podeduc.apps.education.fr/video/152198-propagation-non-dispersive-3/?is_iframe=true" width="640" height="360" style="padding: 0; margin: 0; border:0" allowfullscreen loading='lazy'></iframe> PodEduc https://podeduc.apps.education.fr/videos/?owner=chlemarchand 360 https://podeduc.apps.education.fr video 640 1.0 Charlène Lemarchand https:/media/cache/39/8e/398ec255d97ae1490c524fee65e4c056.png 960 720