Prospective NASA Project Mercury astronaut, Lt. Hal R. Crandall, USN, undergoes Harvard step and tilt table test at Wright-Patterson Air Force Base, Ohio. Views of Crandall stepping up and down onto a platform. He also lies on steeply inclined table for 25 minutes to measure ability of the heart to compensate for body in an unusual position for an extended time.
Prospective NASA Project Mercury astronaut, Harold W Christian undergoes Harvard step and tilt table test at Wright-Patterson Air Force Base, Ohio. Doctor checks subject's pulse and blood pressure. Harold Christian, wearing Converse All Stars high top shoes, steps 20 inches to a platform once every two seconds. After some minutes, when cued by the medical staff watching, he stops stepping and immediately lies on a backward inclined table (for 25 minutes to measure ability of the heart to compensate for body in an unusual position for an extended time). Medical personnel monitor his vital signs as he is on the inclined table.
Prospective NASA Project Mercury astronaut, James Wood undergoes an Equilibrium test at Wright-Patterson Air Force Base, Ohio. Subject gets on to the equilibrium chair. Subject is seated on a chair which rotates simultaneously on two axes. He maintains the chair on an even keel by means of a control stick with and without vibration, normally and blindfolded.
Prospective NASA Project Mercury astronaut, Lieutenant John H Glenn undergoes centrifuge test at Wright-Patterson Air Force Base, Ohio. Subject gets into the centrifuge chamber and lies down in horizontal position.
Prospective NASA Project Mercury astronaut, Lieutenant Malcolm S Carpenter undergoes centrifuge test at Wright-Patterson Air Force Base, Ohio. Subject lies down in horizontal position inside the centrifuge chamber.
Prospective NASA Project Mercury astronaut Lieutenant M. Scott Carpenter, USN, undergoes centrifuge test at Wright-Patterson Air Force Base, Ohio. Subject gets inside centrifuge chamber and lies down in horizontal position.
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