<iframe src="https://pod.univ-lille.fr/video/1091-comment-courber-un-rayon-lumineux/?is_iframe=true" width="640" height="360" style="padding: 0; margin: 0; border:0" allowfullscreen loading='lazy'></iframe> Lille.Pod https://pod.univ-lille.fr/videos/?owner=jean-marie.blondeau 360 https://pod.univ-lille.fr video 640 1.0 Jean-Marie Blondeau https:/media/cache/8d/a6/8da6b7f43b83796febf533f5fe7aab1c.png 640 360