| 11. | This type of clock was widely used as a master clock in large buildings to control numerous slave clocks.
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| 12. | Slave clocks rely upon electrical impulses from the master clock to mechanically move the clock hands one unit of time.
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| 13. | Once the gravity arm is released, it trips a mechanism to reset itself ready for release by the slave clock.
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| 14. | The slave clock mechanism is not a conventional clock mechanism as it consists only of a ratchet wheel and time train.
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| 15. | If the slave clock has lost too much time, its blade spring pushes against the arm and this accelerates the pendulum.
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| 16. | Slave clock synchronization is usually achieved by phase-locking the slave clock signal to a signal received from the master clock.
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| 17. | Slave clock synchronization is usually achieved by phase-locking the slave clock signal to a signal received from the master clock.
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| 18. | Experience in telegraphy led to connecting remote clocks ( slave clocks ) via wires to a controlling ( master clock ) clock.
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| 19. | The accuracy of the master-slave system was dictated by the accuracy of the master clock and reliability of the slave clocks.
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| 20. | A second approach to synchronized time transmitted along wires was to connect a master clock to relatively simple secondary clocks ( slave clocks ).
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