Short-tauked albatross soaring by making use of boundary layer of wind blowing on ocean

�@After the albatross gets the kinetic energy on riding the wind at upper boundary layer of faster speed, it descends near the sea level and then is accelerated by changing the potentia energy to the kinetic one. Then it goes on a distance toward the objective direction in lower boundary layer of slower speed. Then it changes the direction to the windward and rises up to arrive at the critical velocity by making use of the remained kinetic energy (by getting the kinetic energy from wind after the bird's velocity has become to zero). Then it changes again the direction to the leeward, and repeats the same soaring. Such a soaring is said the dynamic soaring.
�@The albatross changes the direction by putting aside the center of gravity and by using the webbed feet. (Prod. Mar. 2004, scale 1/2, No.2)

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