A Navy buddy of my father took my family on a personal tour of the Smithsonian Udvar-Hazy center. We got to the Polaris missile exhibit and he paused, checked t

A Navy buddy of my father took my family on a personal tour of the Smithsonian Udvar-Hazy center. We got to the Polaris missile exhibit and he paused, checked the date and appeared to do a little mental math before telling us how he spent a substantial portion of his career.