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 Lucia: Feminine form of Lucius, which is derived from the Latin lux (light). The name was borne by St. Lucia of Syracuse, a 4th-century martyr whose popularity during the Middle Ages led to widespread use of the name.From A World of Baby Names by Teresa Norman.eminine form of Lucius, which is derived from the Latin lux (light). The name was borne by St. Lucia of Syracuse, a 4th-century martyr whose popularity during the Middle Ages led to widespread use of the name. From A World of Baby Names by Teresa Norman.