To produce a second-order digit of a Babylonian time, the statists changed from solar to stellar time | The state administrators had perceived that the sun advances at a uniform rate no matter what the season |
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A clock position, or clock bearing, is the of an object observed from a vehicle, typically a vessel or an aircraft, relative to the orientation of the vehicle to the observer | The convention is that of analytic geometry: the at zero degrees is the longitudinal axis of the vehicle |
74 Reference bibliography [ ]• Time today and generally in ancient Mesopotamia is given mainly in three digits.
22The vocabulary of time was not yet set | History of the Hour: Clocks and Modern Temporal Orders |
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The pilots needed a vertical dimension, so they supplemented the clock position with the word high or low to describe the vertical direction; e | 6:00 is intended to be a true bearing; that is, at 12:00 solar time the shadow over the VI line must point due north or south |
The modern system retains much of the sexagesimalism of the Sumerians, but typically not with the same detail.
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