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geographic range
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geographic range

light
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The Information Architects of Encyclopaedia Britannica

Learn about this topic in these articles:

  • Lighthouse
    lighthouse
    / Geographic range and luminous range

    This is known as the geographic range of the light. (One nautical mile, the distance on Earth’s surface traversed by one minute of arc latitude, is equivalent to 1.15 statute miles or 1.85 km.)

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    This is known as the geographic range of the light. (One nautical mile, the distance on Earth’s surface traversed by one minute of arc latitude, is equivalent to 1.15 statute miles or 1.85 km.)

    Read More