Design and construction History 341 Bridges 216 Automobiles 154 Sustainable buildings 127 Integrated circuits 111 Roads 110 more ... Environmental aspects 95 Airplanes 87 Equipment and supplies 78 Embedded computer systems 63 Dwellings 61 Safety measures 61 Buildings 54 Architecture 53 Technological innovations 53 Data processing 52 Maintenance and repair 52 Robots 52 Planning 50 Sustainable architecture 50 Railroad bridges 48 Iron and steel bridges 47 Management 45 Electronic apparatus and appliances 42 Energy conservation 42 Metal oxide semiconductors, Complementary 42 Wireless communication systems 41 Social aspects 39 Dams 38 less ...