| 21. | Synchronized time systems are made up of one master clock and any number of slave clocks.
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| 22. | The human body has a master clock in the SCN and also peripheral oscillators in tissues.
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| 23. | It is a 15-year-old master clock system, with dials in the middle and two digital displays.
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| 24. | Two slightly different master clock-slave clock concepts emerged.
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| 25. | That is why the master clocks of the electricity companies show mean time, not atomic time.
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| 26. | A single master clock or " sync generator " provides the reference for all of the devices'clocks.
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| 27. | The accuracy of the ground station measurements was a function of the ground station master clock accuracy.
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| 28. | The Alternate Master Clock, mentioned above, also continues to operate at Schriever Air Force Base in Colorado.
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| 29. | Carl Rusnok of the Naval Observatory said the service's master clock was not affected by the problem.
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| 30. | It starts a new rotation as soon as it receives the next minute impulse from the master clock.
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