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                      | NEWS 
 
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 |  | Space 
                        tractor More than a few Hollywood adventures have featured 
                        asteroids smashing into the earth and wiping out cities 
                        or generating monstrous tsunamis...
 
 
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                      | Chemical 
                        hubs In recent years researchers have been teasing 
                        out the properties of all manner of networks as wide-ranging 
                        as the Web, social connections among people, and relationships 
                        among chemicals in the biochemical processes that support 
                        life...
 
 
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                      | Time 
                        simplifies quantum crypto The field of quantum cryptography, which promises 
                        potentially perfectly secure communications, has matured 
                        rapidly. Current research is aimed at increasing data 
                        rates and improving reliability...
 
 
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                      | Spreadsheet 
                        drives sensor net Networks of tiny, inexpensive sensors scattered 
                        throughout an environment could make it easier to monitor 
                        environmental conditions, collect scientific data and 
                        track people and vehicles for military and law enforcement 
                        purposes. Managing these sensor networks and analyzing 
                        the data they collect, however, promises to be challenging...
 
 
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                      | Bits 
                        and pieces Sugar turns vegetable oil to diesel, nanotubes block electromagnetic 
                        radiation, and a carbon nano vehicle.
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                      | FEATURES
 
 
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                      | View 
                        from the High Ground: GMU's Harry Wechsler
 Pervasive computing, personalized medicine, 
                        the game of Go, biometrics, 1984, machines making decisions 
                        for us, the limits of a computer science education, and 
                        the importance of not knowing ahead of time.
 
 
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                      | How 
                        It Works: Quantum cryptography Perfectly secure communications comes down to using the 
                        quirks of quantum physics to reliably detect eavesdroppers.
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