Subject categories
Agriculture, Business, Commerce & Industry → Industrialization
Agriculture, Business, Commerce & Industry → Metals
Agriculture, Business, Commerce & Industry → Power tools
Agriculture, Business, Commerce & Industry → Tools
Crafts & Visual Arts → Tools
Documentary
Documentary → Documentary films - United States
Educational & Instructional
Educational & Instructional → Educational films
Educational & Instructional → Instructional
History → Technology and civilization
Hobbies, Recreation & Sport → Tools
Mathematics, Science & Technology → Lasers
Mathematics, Science & Technology → Machine-tools
Mathematics, Science & Technology → Metals
Mathematics, Science & Technology → Power tools
Mathematics, Science & Technology → Technological innovations
Mathematics, Science & Technology → Technology and civilization
Short films
Short films → Short films - United States