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← HistoryWhich limitation impacted the precision of 18th-century sextant readings to determine latitude?
A)Inaccurate bubble horizon devices
B)Lack of temperature compensation✓
C)Uncalibrated optical telescope alignment
D)Substandard mounting gimbals stability
💡 Explanation
Sextant accuracy suffered because the frame's metal would expand/contract due to temperature changes, altering angular measurement. This thermal expansion, rather than bubble level errors therefore compromised precision when at sea in fluctuating conditions, compared to optical calibration issues.
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