What do we know about light?No posterWhat do we know about light?1955Queuebrick VideoQueueLWatchedWFavoriteFListsDiscussionWhere to watchCopy short link1955What do we know about light?DirectorBohumil VošahlíkCinematographyAlois JiráčekScreenplayJosef PlívaStudioStudio populárně vědeckých a naučných filmů PrahaOverviewDiscussionPopularNew0 takes · 0 hearts · 0 repliesWrite a ReviewNothing on the record yet. The first take opens the floor.