Calling All Mariners, Seafarers, & Boaters: Navigation Need Not Be Intimidating Ever Again And Now You Can Do It The Old-Fashioned Way - And Mesmerize Your Friends Bob Wilhelm, Master Ocean, has over fifty years at sea. Beginning as a submariner in the U.S. Navy, he has gone on to commercial fishing, running charters, and sailing all as Master of his own vessel. He breaks down the method behind ocean navigation; it is the scientific process of directing the movement of a vessel from one point on the earth's surface to another as described by latitude and longitude. Modern scientific...