Design and construction History 357 Bridges 228 Automobiles 163 Sustainable buildings 129 Roads 115 Integrated circuits 113 more ... Environmental aspects 96 Airplanes 93 Equipment and supplies 84 Safety measures 69 Dwellings 63 Embedded computer systems 63 Buildings 57 Architecture 56 Data processing 55 Robots 55 Maintenance and repair 53 Technological innovations 53 Planning 52 Sustainable architecture 52 Railroad bridges 48 Iron and steel bridges 47 Management 46 Wireless communication systems 45 Electronic apparatus and appliances 44 Metal oxide semiconductors, Complementary 43 Energy conservation 42 Social aspects 41 Dams 40 less ...