EntityQ769550· pop 5· linked from 13 articlesdrop tubeSign in to savestructure used for zero-G experimentsConnectionsweightlessnessEntityGlenn Research CenterEntityphysicsEntityGalileo GalileiEntityoxygenEntityleadEntitymetalEntityInternational Standard Book NumberEntityInternational Space StationConceptvacuumEntityalloyEntityWayback MachineEntityLeaning Tower of PisaEntitycameraEntitydigital object identifierEntitySpace ShuttleEntitycombustionEntityparabolaEntityfluidEntitymaterials scienceEntityCategoriesLaboratory equipmentTowersWeightlessness