• 13 Videos, Slides, Films

• 4 Food
• 4 Gastronomy
• 4 Technological innovations
• 2 Electricity
• 2 Electronics
• 1 Aerodynamics
• 1 Aeronautics
• 1 Aerospace industries
• 1 Agriculture
• 1 Air conditioning
• 1 Artificial foods industry
• 1 Artificial satellites
• 1 Candy industry
• 1 Computer crimes
• 1 Computer security
• 1 Computers
• 1 Database management
• 1 Digital media
• 1 Edison, Thomas A. (Thomas Alva), 1847-1931
• 1 Educational technology
• 1 Electronic surveillance
• 1 Energy crops

• 13 Films Media Group
• 9 Films for the Humanities & Sciences (Firm)
• 4 Public Broadcasting Service (U.S.)
• 3 Infobase
• 1 WNET (Television station : New York, N.Y.)

• 13 English

• 1 Europe
• 1 United States

• 13 Internet videos
• 9 Videorecording
• 1 Biography

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