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← HistoryWhich accuracy consequence resulted when early 18th-century chronometer balance springs experienced thermal expansion?
A)Erratic longitude determination increased✓
B)Compensated pendulum swing durations varied
C)Latitudinal drift became unpredictable
D)Magnetic compass errors were amplified
💡 Explanation
Inaccurate longitude determination heightened risk, because thermal expansion caused the balance spring's period to change, increasing errors by affecting timekeeping via harmonic oscillation in the chronometer. Therefore accurate navigation suffered, rather than compensated pendulums (unrelated), or compass errors.
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