Results 21 to 30 of about 1,329 (190)

The Harold C. Ernst Collection of Portable Sundials [PDF]

open access: yes, 2014
A catalog of sundials from the Harold C. Ernst Collection of Portable Sundials, and a handy reference book on the subject of portable sundials. The sundial is the most ancient scientific instrument to come down to us unchanged.
Mayall, Margaret W., Mayall, R. Newton
core   +1 more source

Evolution of time measuring instruments since ancient times until the Ottoman clock towers [PDF]

open access: yesJournal of General Union of Arab Archaeologists, 2019
This study is concerned with the tools and methods of calculating time. As we went back to the earliest times, we found that time was not important in primitive man, and then the modern age began, in which man settled relatively.
Dr. Seham Abdallah Gad
doaj   +1 more source

Interpretatie van Zonnewijzerfragmenten

open access: yesBulletin KNOB, 1991
This paper reaches after a framework to determination of patterns of hourlines on sundials on the basis of a complete, but broken sundial and a small fragment of another one, called Enthinge nr. 25 and nr.
Eugène L.H. Roebroeck
doaj   +1 more source

A Mathematical Analysis of the Theory of Horizontal Sundials in the Ottoman Period: The Case of Risālah of Ruhāma [PDF]

open access: yesNazariyat: Journal for the History of Islamic Philosophy and Sciences, 2015
As the prayer times are determined according the sun’s position, the theory of sundials, how to draw and design them, hold a significant place in the history of Islamic astronomy.
Atilla Bir, Şinasi Acar, Mustafa Kaçar
doaj   +1 more source

Inverted analemmatic sundial of the Bronze Age [PDF]

open access: yesArchaeoastronomy and Ancient Technologies, 2022
This article describes the study, using the methods of digital and computational archeology, of a Bronze Age limestone slab with cup marks, discovered during the archaeological excavations of kurgan 1 of the kurgan grave field Prolom II, located in the ...
L.N. Vodolazhskaya
doaj   +1 more source

Paroles de Soleil

open access: yesTemporalités, 2005
Sundials are still often considered today, wrongly, as simply an artistic outdoor decoration. In fact, they are complex astronomical instruments, not only as conceived but also in actual reality.
Olivier Escuder
doaj   +1 more source

Reconstruction of ancient Egyptian sundials [PDF]

open access: yesArchaeoastronomy and Ancient Technologies, 2014
The article presents the results of a study of the design features of vertical and L-shaped ancient Egyptian sundials, developed their models, on the basis of which the reconstruction of the sundial was carried out.
Vodolazhskaya, L.N.
doaj   +1 more source

The prototype of ancient analemmatic sundials (Rostov Oblast, Russia) [PDF]

open access: yesArchaeoastronomy and Ancient Technologies, 2016
The article presents the results of a study of petroglyphs on a unique stone slab discovered near the kurgan 1 of the kurgan field Varvarinsky I (Rostov Oblast, Russia).
Vodolazhskaya, L.N.   +2 more
doaj   +1 more source

Sundials/ML: interfacing with numerical solvers [PDF]

open access: yes, 2016
International audienceWe describe a comprehensive OCaml interface to the Sundials suite of numerical solvers (version 2.6.2).
Bourke, Timothy   +2 more
core   +3 more sources

Les inscriptions du temps sur les cadrans solaires

open access: yesTemporalités, 2004
Temporal sociology has not taken much interest in the epigraphy of sundials. We are attempting to redress this lack by showing that mottoes constitute precious archives for research into temporalities.
Jean-Marc Ramos, Max Reinert
doaj   +1 more source

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