An x-ray of the EX1-A Apollo Applications Project suit from 1968 shows its “toroidal joint system”—from the word “torus”, meaning a doughnut-shaped object. The system permitted the maximum amount of movement for the astronaut.
X-ray by Roland Cunningham and Mark Avino
Image Number: WEB13106-2013
Credit: Image by Mark Avino, Smithsonian Institution
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