drawing courtesy of Quora contributor Krishna Moorthy, budding astronomer
Why do we always see the same side of the Moon?
“The moon keeps the same face pointing towards the Earth because its rate of spin is tidally locked so that it is synchronized with its rate of revolution (the time needed to complete one orbit). In other words, the moon rotates exactly once every time it circles the Earth.” Source - Scientificamerican.com
The longitudinal center of gravity is lower for a woman than a man. That's why she floats more easily.