• 154 Technological innovations
• 106 Computer science
• 62 Exploration
• 19 Research
• 18 Robotics
• 8 Cancer
• 8 Experimental automobiles
• 7 Astronomy
• 7 Cell phones
• 7 Design and construction
• 6 Climatic changes
• 6 Technology
• 5 Airplanes
• 5 Space shuttles
• 4 Artificial satellites
• 4 Hydrogen as fuel
• 4 Ice
• 4 Surgery
• 4 Volcanoes
• 3 Aerodynamics
• 3 Automobiles
• 3 Computer graphics
• 3 Earthquakes
• 3 Environmental protection
• 3 Equipment and supplies

• 180 Switch International
• 26 Keogh, Chris
• 13 Rogers, Simon (Narrator)
• 5 Alexander Street Press

• 240 English

• 60 Outer space
• 5 Antarctica
• 4 Argentina
• 3 China
• 3 Earth (Planet)
• 3 Great Barrier Reef (Qld.)
• 3 Mars (Planet)
• 2 Africa
• 2 Arctic regions
• 2 Australia
• 2 Bangladesh
• 2 Bolivia
• 2 California
• 2 Easter Island
• 2 France
• 2 Great Lakes (North America)
• 2 Greenland
• 2 Himalaya Mountains
• 2 Italy
• 2 Japan
• 2 Netherlands
• 2 Peru
• 2 Saturn (Planet)
• 2 Shetland (Scotland)
• 2 Spain

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