Routine design When we think of bridges, it is the dramatic and monumental long spans that come to mind first, especially the lithe suspension bridges such as the Golden Gate and the pure geometric arches such as Sydney Harbour. But the majority of bridges are not such spectacular structures. Most of them are ordinary overpasses, with spans of 30 or 40 feet, carrying roadways or rails across other thoroughfares or over small streams. You see such bridges by the dozen on any drive down the Interstate. They may be lacking in glamour, but they are more representative of a bridge builder's art. The engineering and construction of girder bridges are pretty routine these days, but the bridges are not quite standard items you order from a catalogue. The girders, whether of steel or concrete, are custom-build for each bridge, then trucked to the site and hoisted into place with a crane. The designer still has scope for variation and creativity, and it shows out on the highways: some overpasses are prettier than others. Brian Hayes, Infrastructure: A Guide to the Industrial Landscape engineeringdesignautomationroutine
Which Books You Truly Love An Essay by Salman Rushdie www.nytimes.com I believe that the books and stories we fall in love with make us who we are, or, not to claim too much, the beloved tale becomes a part of the way in which we understand things and make judgments and choices in our daily lives. A book may cease to speak to us as we grow older, and our feeling for it will fade. Or we may suddenly, as our lives shape and hopefully increase our understanding, be able to appreciate a book we dismissed earlier; we may suddenly be able to hear its music, to be enraptured by its song. readingloveidentitylife