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Page 1343
Engineering , Civilization , and Society > tem of roads made possible the mobility and intercommunication upon which the military security of the empire depended . Aqueducts made possible the support of the huge urban populations that ...
Engineering , Civilization , and Society > tem of roads made possible the mobility and intercommunication upon which the military security of the empire depended . Aqueducts made possible the support of the huge urban populations that ...
Page 1557
For example , such pulses would make it possible to measure distances of many kilometers to within fractions of a millimeter . Since atoms radiate for 104 or more optical cycles , such pulses would make possible experimental ...
For example , such pulses would make it possible to measure distances of many kilometers to within fractions of a millimeter . Since atoms radiate for 104 or more optical cycles , such pulses would make possible experimental ...
Page 1701
To cite only a few of many possible indices , by 1880 there were approximately 400 colleges and universities employing at least one scientist each , and by 1882 there were 144 observatories in the country , all presumably providing ...
To cite only a few of many possible indices , by 1880 there were approximately 400 colleges and universities employing at least one scientist each , and by 1882 there were 144 observatories in the country , all presumably providing ...
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