... as the Mercator map, the steam engine, the Bessemerprocess for making steel, the use of dynamite, and the harnessing of electricity from water power allshaped the future of the river in profound ... much of the val-ley, human uses of the shoreline have effected evengreater changes, as the next set of papers demon-strates (Fig. 3.7). Most of these changes are stronglyrelated to the pull of ... itspread from the Hudson to the nation and the world. The one thing all those individuals have incommon is the power of their imagination. The Hudson inspires big dreams and energizes the peo-ple...