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← HistoryWhich mechanism facilitated the accurate measurement of time at sea using Harrison's marine chronometers?
A)Temperature-compensated balance wheel✓
B)Vacuum-sealed oscillating pendulum
C)Electromagnetic escapement mechanism
D)Automated celestial navigation system
💡 Explanation
When temperature fluctuates, thermal expansion affects spring dimensions, thus a temperature-compensated balance wheel uses a bi-metallic strip that bends to counteract changes in the spring's elasticity. Therefore, accuracy is maintained, rather than vacuum seal, electromagnetics, or automation which were either not applicable or not invented at that time.
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