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The Epic Interactive Encyclopedia 1996
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Epic Interactive Encyclopedia, The (1996)(Epic Marketing)[non-bootable].iso
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sextant
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1992-09-02
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249b
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8 lines
A sextant is a navigational instrument for
determining latitude by measuring the angle
between some heavenly body and the horizon.
It was invented by John Hadley (1682-1744) in
1730 and can be used only in clear weather.
Subject by: Shaun Jay