• 35 Mechanics
• 19 Electricity
• 19 Electromagnetism
• 19 Magnetism
• 19 Thermodynamics
• 14 Sound
• 14 Sound-waves
• 14 Wave theory of light
• 14 Waves
• 11 Technology
• 8 Astronomy
• 8 Engineering
• 8 Power resources
• 7 Energy facilities
• 7 Transportation
• 6 Industries
• 6 Power supply
• 5 Mathematics
• 5 Mechanical engineering
• 4 Galaxies
• 4 History
• 4 Outer space
• 4 Space

• 132 Films Media Group
• 131 Infobase
• 18 Cerebellum Corporation (Firm)
• 17 A&E Networks (Firm)
• 17 Liacos Educational Media (Firm)
• 14 PBS (Firm)
• 10 TVF International (Firm)
• 9 Makematic (Firm)
• 9 Video Education America (VEA) (Firm)
• 7 Inside Science (Firm)
• 6 Magic Lantern Media Inc (Firm)
• 4 Films for the Humanities & Sciences (Firm)
• 3 Open University
• 3 TED (Firm)
• 2 AAPT SM20 (2020)
• 2 Al-Khalili, Jim, 1962-
• 2 BBC (Firm)
• 2 CNN (Firm)
• 2 Cinetic Rights Management LLC. (Firm)
• 2 Filmhub (Firm)
• 2 Furnace Limited
• 2 MagellanTV
• 2 National Geographic Digital Media (Firm)
• 2 Prime Entertainment Group (Firm)
• 2 Stacey, Nic

• 139 English
• 3 Unknown

• 1 Europe

Limit year range