# Weightlessness { "id": "S85145961", "title": "Weightlessness", "url": "/topics/S85145961", "kind": "topic-directory", "aeo_cohort": "topic-directory", "provider": "lcsh", "revision": "b6ed5ef77583b482", "catalogue_revision": "f050b5d4780b1289", "numeric_address": "9547714774054340100", "address_version": "morton4x16-v1", "coordinates": [ 0, 20, 19685, 41984 ], "answer_status": "Directory metadata; local answer requires separate source review", "truth_status": "Subject descriptor, not a factual answer or a demonstrated knowledge gap" } Works on the physics or theory of gravitational forces are entered under [Gravitation] or [Gravity.] Here are entered works on the physiological and psychological effects of environments in which the gravitational forces are zero or markedly lower than the gravity on Earth. Works on the physiological effects of normal gravity and of acceleration expressed in g's are entered under [Gravity--Physiological effect.] Directory metadata is not a factual answer or evidence of a global knowledge gap. Source: https://id.loc.gov/authorities/subjects/sh85145961 No owner-reviewed local answer yet.