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Added 1 new A* page:Fun fact: normal breathing—you know, with the lungs and diaphragm and all that—while wearing a skin-tight space activity suit similar to Selenis' in vacuum requires that the tightness of the suit is producing pressure of at least "17.3 kilopascals (130 mmHg; 2.5 psi)" across the wearer's torso. I guess this is because otherwise, without the help of Earth's atmospheric pressure, it's too much work to exhale!
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