A unified and general treatment of solar calendars and sundials: II. Ancient systems of time-reckoning

Details A unified and general treatment of solar calendars and sundials: II. Ancient systems of time-reckoning A unified and general treatment of solar calendars and sundials: II. Ancient systems of time-reckoning

Jul 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ejph...22..315v&link_type=abstract

European Journal of Physics, Volume 22, Issue 4, pp. 315-323 (2001).

Physics

2

Scientific paper

The equations of the most general type of solar calendar and sundial, which were derived in Vandyck M (2000 A unified and general framework for sundials and solar calendars Eur. J. Phys. 22 79), are extended here to take into account the three main systems of time-reckoning employed by the Ancients: Babylonian hours, Roman hours, and Italian (or Bohemian) hours. The results provide insight into the notions of `temporary' and `equal' hours, which are related to the concept of `uniformity' of the flow of time.

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