... Abstract The Earth, in its diurnal rotation, acts as a remarkably accurate ... not an ideal unit; the Earth in its diurnal rotation is a very good timekeeper but ... recognized to be a closely related issue: an acceleration of the Moon's motion ...
... day" (hemera) possibly indicating that the (predicted lunar) eclipse was diurnal ... a harmonic variation into the Moon's motion that has the period of the anomalistic ...
... many days, often showing the usual diurnal variation, particularly in cases where ... scattered and it is possible this merely reflects changes in diurnal sporadic rates ...