Technology History 53 Social aspects 20 Science 19 History and criticism 4 Armored vessels 3 Industrial mobilization 3 more ... Machinery 3 Marine engineering 3 Military aspects 3 Naval operations 3 Shipbuilding industry 3 State universities and colleges 3 Study and teaching (Higher) 3 Technology and civilization 3 Amputees 2 Artificial limbs 2 Civilization 2 Cultural assimilation 2 Design and construction 2 Economic aspects 2 Electrical engineers 2 Electricity 2 German literature 2 Identity 2 Intellectual life 2 Inventors 2 Islamic civilization 2 Jewish authors 2 Jews 2 less ...