Over the last ?ve decades Physical Oceanography developed explosively from a state with only a few observations and theories to a mature science with global ?eld p- grams, massivecomputerpower, andacomplextheoreticalframework. Thescientists wholedthisdevelopmentarealreadyorwillsoonberetired. Thiscollectionofessays documentssomeofthebreakthroughsandalsotriestocapturethespiritofexploration and excitement that accompanied these developments. Theoriginalmotivationforthepresentbookcamefromourdesiretounderstand the current social and scienti?c framework in which we work as physical ocean- raphers....