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← HistoryWhich navigational risk increased aboard 18th-century ships when chronometer escapement mechanisms suffered temperature-induced dimensional changes?
A)Significant errors In longitude calculation✓
B)Unpredictable variations in compass heading
C)Inaccurate measurement the ship momentum
D)Accelerated depletion of water rations
💡 Explanation
When a chronometer's escapement changes dimensionally with temperature, its precise timing is altered because the thermal expansion affects the release and locking of the balance wheel, affecting its accuracy. Therefore errors in longitude arise, rather than compass errors, momentum, water rationing, which rely on unrelated physical constraints.
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