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.
The Marina is a natural urban beach along the Coramandel coast on the Bay of Bengal. Primarily sandy, the beach spans about 13 km (8.1 mi), running from near Fort St. George in the north to Besant Nagar in the south and is the longest natural urban beach in India. The average width of the beach is 300 m (980 ft) and the width at the widest stretch is 437 m (1,434 ft).