Which benefit primarily arose when Viking longships adopted square sails?

💡 Explanation

Viking square sails maximized power capture in downwind conditions, enabling longer voyages westward because they utilized a larger surface area for the wind's force, therefore increasing efficiency for unidirectional travel, rather than offering maneuverability improvements.

• During long 18th-century sea voyages, which systematic error affected sextant altitude measurements?
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• Which outcome results when 'agger' height exceeded limits?
• Which limitation arose for medieval astrolabes during high-latitude exploration?
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