Subject categories
Agriculture, Business, Commerce & Industry → Industries - Canada
Agriculture, Business, Commerce & Industry → Research, Industrial - Canada
Anthropology, Ethnology, Exploration & Travel → Balloons
Climate, Environment, Natural Resources & Disasters → Ozone layer depletion
Communications, Infrastructure, & Transport → Balloons
Communications, Infrastructure, & Transport → Transportation - Canada
Documentary
Documentary → Documentary films - Canada
Education, Instruction, Teaching & Schools → Research
Hobbies, Recreation & Sport → Balloons
Mathematics, Science & Technology → Atmosphere, Upper
Mathematics, Science & Technology → Auroras
Mathematics, Science & Technology → Science
Mathematics, Science & Technology → Science - Experiments
Mathematics, Science & Technology → Space sciences
Mathematics, Science & Technology → Technological innovations
Short films
Short films → Short films - Canada