Professeur, Chimiste, Biologiste, Professeur Gros plan, Homme en blanc Robe médicale et lunettes, a enlevé les lunettes, regardant vers la gauche, Descendant par des escaliers dans l'auditorium, salle d'amphithéâtre, rangées, bureaux en bois, sièges, diurne, intérieur, lumière de la - Clips & vidéo de stock

Professor, Chemist, Biologist, Teacher's Face Closeup, Wear Glasses, go away, in White medical robe, Closeup at the Class, in Auditorium, wooden desks, seats, rows, auditorium as an amphitheater hall, daytime, indoors

CU Man fixing bow tie, blowing into palm of hand then leaving room, Orem, Utah, USA

The hungry visitor comes to the cafe and unbearable waits menu. 4K.

Girl archaeologist traveling in Sri Lanka explores a map at a desk

Professor, Chemist, Biologist, Teacher's Face Closeup, Wear Glasses, go away, in White medical robe, Closeup at the Class, in Auditorium, wooden desks, seats, rows, auditorium as an amphitheater hall, daytime, indoors

People are Arranging Old Books on the Glass Shelves in Museum, brown pages, Old Historical book. Man in glasses, woman, Ancient machines, tools for printing. Nestor the Chronicler's book "The Tale of Bygone Years", Paterik Kievo-Pechersky, year of

Professor, Male, Chemist, Biologst is Holding Lecture, Class, Lesson, Teacher at the Tribune, is pulling up clothes under the medical robe, talking, gesticulating, walking by auditorium, professor in glasses, man with beard and mustache, Students in

Man is Working With Clay, Blurred Kid, Little Girl is Walking by Workshop, girl in blue dress, Man is Covering a Clay Pot and Cat Statuette Fixed to a Pot, Cover Raw Clay with Water, Working Attentively, Using a Brush, Middle Aged Man with Beard,

Professor, Chemist, Biologist, Teacher is Holding the Class in front of Students, top down, lecturer is talking, four students are listening, writing, professor and students are in white medical robes, auditorium, amphitheater hall, rows, wooden