A major effect of long-term weightlessness involves the loss of bone and muscle mass. Without the effects of gravity, skeletal muscle is no longer required to maintain posture and the muscle groups used in moving around in a weightless environment differ from those required in terrestrial locomotion.
Marina /ma-ri-na/ [3 sylls.] as a girls' name is pronounced mah-REE-nah. It is of Latin origin, and the meaning of Marina is from the sea. From marine. A saint's name. Shakespeare gave the name to Pericles' daughter in his play Pericles, Prince of Tyre.
Last name: Crews. This interesting surname, with variant spellings Crew, Cruise, Cruse, Cruwys and Crouse may be of three possible origins. Firstly, it may be of English locational origin from Crewe, in Cheshire, recorded as Crev, in the Domesday Book of 1086, Crue in 1346 in the Index to the Charters and Rolls in the British Museum.