The Ask An Expert lecture series at the National Mall building is presented every Wednesday at noon. A Museum staff member talks to the public about the history, collection, or personalities related to a specific artifact or exhibition in the Museum.

The EX1-A suit from the 1968 Apollo Applications Project, constructed by the AiResearch Corporation, was made from two layers of Nomex with a layer of Neoprene sandwiched in between. Its "toroidal joint systems" - from the word "torus," meaning a doughnut-shaped object - permitted the maximum amount of movement without changing the internal pressure of the suit. The goal was to decrease astronaut fatigue.

 How to attend

National Air and Space Museum in Washington, DC

6th St. and Independence Ave SW. Washington, DC 20560