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.
Best Answer: Lucas Name Meaning and History. 1. English, French, Spanish, Portuguese, Dutch, etc.: from the Latin personal name Lucas (Greek Loukas) âman from Lucaniaâ. Lucania is a region of southern Italy thought to have been named in ancient times with a word meaning âbrightâ or âshiningâ. Compare Lucio.