Navigating a submarine that stays submerged for long periods requires advanced equipment, and new technology had to be developed to solve the problems of underwater navigation, Join Center for Earth and Planetary Science geographer Andrew Johnston as he provides details of the navigation equipment from the submarine USS Alabama on display in the Time and Navigation exhibition, and explains how it was possible for the crew to keep track of their position underneath the waves.
Meet at the Museum "Great Seal", in the Boeing Milestones of Flight Hall on the first floor.
About the Ask an Expert lecture series: Every Wednesday at noon in the National Mall Building, a Museum staff member talks to the public about the history, collection, or personalities related to a specific artifact or exhibition in the Museum.