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← HistoryWhich operational challenge arose when applying John Harrison's chronometers for longitude determination on ships?
A)Thermal drift due to engine room heat✓
B)Magnetic interference from iron components
C)Maintaining accurate time during storms
D)Synchronizing multiple chronometers precisely
💡 Explanation
When Harrison's chronometers were used on ships, thermal drift occurred because temperature variations affected the balance spring and other components, altering the rate of timekeeping. Therefore thermal drift results, rather than magnetic interference, storm effects, or synchronization issues which affect different mechanism in navigation and ships.
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