venerdì 6 giugno 2008

il deserto del Sahara trasloca ai Caraibi

"The Ups and Downs of the Seas: Today's scientists realize that the air, land and sea constantly exchange material and energy. This is significant because wind can pick up dry Sahara desert soil and drop it into the Caribbean Sea, changing the underwater environment. The dynamics of this energy interaction cause water to move in many ways over the earth's surface, causing erosion, moving soil and affecting human activities.

A primary cause of water motion is wind energy, which transfers to the water as it blows across its surface. This results in two primary types of water motion: currents and waves, both of which can result from forces other than wind as well."

K. Shreeves, L. Alexander, R. Yakzan, J. Kinsella, A. Brylske, J. Lewis:
The Encyclopedia of Recreational Diving
PADI, Rancho Santa Margarita - 2005
pag. 2-27


catalogazione: libreria accanto al computer
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