<iframe src="https://podeduc.apps.education.fr/video/138490-3-d2-propagationsonvide/?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=mikolajczak thierry 360 https://podeduc.apps.education.fr video 640 1.0 Thierry Mikolajczak https:/media/cache/20/91/2091ecb8405bac3246eb3d735411aac0.png 640 360