<iframe src="https://podeduc.apps.education.fr/video/22120-effet-de-la-refraction-de-la-lumiere/?is_iframe=true" width="640" height="360" style="padding: 0; margin: 0; border:0" allowfullscreen loading='lazy'></iframe> Effet de la réfraction de la lumière PodEduc https://podeduc.apps.education.fr/videos/?owner=W0TQvqsTQC8hCiOTXIfmAETK02A 360 https://podeduc.apps.education.fr video 640 1.0 Christophe Bellessort