Discovered historically by Thomas Sumner, the line of position (LoP) is the local tangible segment of a circle of equal altitude. Mederos teaches sailors how to intersect multiple non-simultaneous sights and calculate bisecting lines to pinpoint an exact position at sea. 3. Sextant Corrections
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The Search for a "Verified PDF": Risks and Legal Alternatives Discovered historically by Thomas Sumner, the line of
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