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← HistoryWhich outcome arises when a 1780s marine sextant's mirrors become tarnished during prolonged voyages?
A)Increased data processing requirements inland
B)Greater astronomical refraction calculation errors
C)Reduced accuracy of celestial navigation✓
D)Compromised structural integrity of instrument
💡 Explanation
Reduced celestial navigation accuracy occurs because a sextant relies on optical reflection, and mirror tarnish compromises the law of reflection, therefore precise angular measurements are impossible rather than simply increasing computational load or damaging refraction calculations.
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