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Which consequence arose when early 18th-century chronometers experienced thermal expansion during transoceanic voyages?

A)Inaccurate longitude calculations at sea
B)Compensated pendulum breakage from metal fatigue
C)Drive spring corrosion due to humidity ingress
D)Escapement failure from lubrication breakdown

💡 Explanation

When chronometers experienced thermal expansion, the balance wheel's period changed due to altered dimensions, causing timing errors and inaccurate determination of longitude based on time difference because a known reference and local time. Therefore longitude calculation errors resulted, rather than pendulum breakage, spring corrosion, or escapement failure, which depend on different mechanisms.

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