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.
Origin of the name Marie: French cognate of Mary, which is derived from the Hebrew MiryÄm, a name of debated meaning. Many believe it to mean sea of bitterness or sea of sorrow.. However, some sources cite the alternative definitions of rebellion, wished-for child, and mistress or lady of the sea..