Which consequence resulted from thermal expansion within the gear train of early marine chronometers during transoceanic voyages?

💡 Explanation

When temperatures varied during long voyages, differential thermal expansion between dissimilar metals in the chronometer's gear train caused subtle changes in gear meshing and moment of inertia, resulting in a drift in accuracy because of altered oscillation rates. Therefore timekeeping drift results, rather than fracture, seizure, or corrosion, which require greater physical stress or exposure.

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