• 20 Videos, Slides, Films

• 9 Technology
• 6 Social aspects
• 5 Science
• 4 Forecasting
• 4 Medicine
• 1 Aging
• 1 Arsenic
• 1 Arsenic content
• 1 Artificial limbs
• 1 Artificial organs
• 1 Bats
• 1 Biochemistry
• 1 Brain
• 1 Career development
• 1 Cultural geography
• 1 Drinking water
• 1 Electrical and Electronic Equipment
• 1 Endangered species
• 1 Heredity
• 1 Human reproduction
• 1 Human reproductive technology
• 1 Implants, Artificial

• 20 Films for the Humanities & Sciences (Firm)
• 9 Parthenon Entertainment (Firm)
• 1 Infobase
• 1 MacNeil/Lehrer Productions
• 1 Public Broadcasting Service (U.S.)

• 20 English

• 1 Ghana
• 1 United States

Limit year range