• 60 Videos, Slides, Films

• 43 Physics
• 32 Discoveries in science
• 32 History
• 14 Study and teaching
• 13 Heat
• 13 Thermodynamics
• 12 Cosmology
• 12 Research
• 11 Heat-engines
• 10 Chemical elements
• 10 Chemistry, Physical and theoretical
• 10 Inorganic compounds
• 10 Organic compounds
• 6 Einstein, Albert, 1879-1955
• 5 Dynamics
• 5 Mechanics
• 4 Chemistry
• 4 Energy consumption
• 4 Energy development
• 4 Environmental aspects
• 4 Management
• 4 Natural resources
• 4 Power resources
• 3 Astronomy

• 59 Films Media Group
• 46 Films for the Humanities & Sciences (Firm)
• 10 Annenberg Learner (Firm)
• 7 Video Education Australasia
• 5 BBC Worldwide Ltd
• 5 Public Broadcasting Service (U.S.)
• 4 Cambridge Educational (Firm)
• 4 Infobase
• 4 La Compagnie des Taxi-Brousse
• 3 Allegro Productions (Firm)
• 2 Canadian Broadcasting Corporation
• 2 Electric Sky (Firm)
• 2 Filmoption International (Firm)
• 2 Goldhil Video (Firm)
• 2 National Geographic Television & Film
• 2 Northey Productions Ltd
• 2 Open University
• 2 Standard Deviants (Performing group)
• 1 A&E Television Networks, LLC
• 1 China Aerospace Studies Institute (U.S.)
• 1 DR TV (Television station : Copenhagen, Denmark)
• 1 Deutsche Welle
• 1 Ethical Markets Media
• 1 Mulvaney, Brendan
• 1 Nobel Media AB (Firm)

• 60 English

• 2 Earth (Planet)
• 2 Outer space
• 1 China
• 1 Galaxies
• 1 United States

• 49 Educational films
• 43 Videorecording
• 34 Video recordings for the hearing impaired
• 3 Video recording
• 1 Congresses

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