<iframe src="https://podeduc.apps.education.fr/video/152191-propagation-non-dispersive-1/?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/12/97/12978c4ee570c601f80057032c816ec9.png 1280 720