• 535 Videos, Slides, Films

• 176 Technological innovations
• 110 Exploration
• 109 Computer science
• 32 Environmental sciences
• 24 Astronomy
• 23 Space sciences
• 22 Research
• 21 Airplanes
• 20 Implements, utensils, etc
• 20 Sustainable living
• 19 Robotics
• 18 Renewable energy sources
• 17 Space exploration
• 15 Design and construction
• 14 Climatic changes
• 14 Conservation of natural resources
• 13 Wildlife conservation
• 10 Space vehicles
• 8 Artificial satellites
• 8 Cancer
• 8 Experimental automobiles
• 8 Space flights
• 7 Automobiles
• 7 Cell phones
• 7 Pollution

• 180 Clark, Evan
• 27 Farrow, Nick
• 26 Keogh, Chris
• 26 Roberts, Paul
• 20 Allan, Stuart
• 20 Atlas, Laurie
• 20 Shaw, Chris
• 19 Bonnin, Liz
• 18 Alexander Street Press
• 16 Nicholas, Damian
• 16 Thompson, Andrew
• 8 Bartlett, G. (Gillian)
• 8 Bartlett, Gillian
• 2 Dorslar, Marianne Van
• 1 Gibson, Jason

• 535 English

• 97 Outer space
• 10 Mars (Planet)
• 6 Great Britain
• 6 Moon
• 5 Saturn (Planet)
• 5 Venus (Planet)
• 4 Antarctica
• 4 Australia
• 4 India
• 3 Arctic regions
• 3 China
• 3 Earth (Planet)
• 3 Egypt
• 2 Alaska
• 2 Barcelona (Spain)
• 2 Himalaya Mountains
• 2 Italy
• 2 Japan
• 2 Jupiter (Planet)
• 2 Netherlands
• 2 Sun
• 2 Sydney Harbour (N.S.W.)
• 2 Thailand
• 2 United States
• 1 Abū Ẓaby (United Arab Emirates)

• 250 Short films
• 18 Internet videos

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