Results 1 to 10 of about 70 (61)
«Moving by light» (lat. a lumine motus) – a device for determining the sides of horizon and time
Науковий вісник Чернівецького національного університету імені Юрія Федьковича. Історія, 2022 Book review: Mykola Ilkiv. Portable sundial from the Khotyn fortress: Attribution, usage features, space-time context. Chernivtsi: Technodruk, 2019. 208 p.
Fadey Yatsenyuk
doaj +3 more sources
Self-orienting armillary dial of the Professor Radovan Danić [PDF]
Glasnik Srpskog Geografskog Društva, 2020 Prof. Radovan Danić, PhD (1893-1979), an honorary lifetime President of the Astronomical Society Ruđer Bošković in Belgrade, owned a brass universal equinoctial ring sundial (98 mm in diameter), preserved by his descendants, who continued his ...
Tadić Milutin, Prnjat Zorica
doaj +1 more source
A Preliminary Study on the Yang-cheon-cheok (量天尺) in the Late Joseon Dynasty [PDF]
Journal of Astronomy and Space Sciences, 2015 We investigated the six remaining Yang-cheon-cheoks (量天尺), which were first described in the Veritable Record of King Sukjong (肅宗實錄). These woodblock sundials from Korea are structurally very similar to a Gyupyo (圭表, gnomon) or an altitude sundial and ...
Sang Hyuk Kim +2 more
doaj +1 more source
Analysis on the Hour-lines of Yangcheon-cheok [PDF]
Journal of Astronomy and Space Sciences, 2017 We studied the hour-lines of six extant Yangcheon-cheoks in Korea. To find whether Yangcheon-cheok was used in the whole area of Korea, we calculated the length of shadows of Yangcheon-cheok on the Korean Peninsula, Nanjing and Beijing as well as ...
Sang Hyuk Kim +2 more
doaj +1 more source
Constructing a portable sundial
The Physics Teacher, 1999 Detailed instructions for low-cost, horizontal sundials that can be created at various levels of complexity for different ages. These sundials are scalable in that they can be made into key chains, necklaces, or into full-size schoolyard projects.
openaire +3 more sources
XVIII.—On a portable Sundial of gilt brass made for Cardinal Wolsey [PDF]
Archaeologia, 1901 The dial exhibited is interesting, both as a good example of a combination of dials, which was in the first half of the sixteenth centary considered to be the perfection of the diallist art, and of which early examples are almost unknown, and also because it was made for Cardinal Wolsey. Nothing is known of its history, but it is said to have come from
openaire +2 more sources
The Harold C. Ernst Collection Of Portable Sundials
, 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. As such it is deserving of a better position in life than that of an ornament.
Mayall, R. Newton, Mayall, Margaret W.
openaire +2 more sources
Three examples of ancient "universal" portable sundials
, 2020 Instruments – Observations – Theories: Studies in the History of Astronomy in Honor of James Evans, ed. Alexander Jones and Christián Carman, 2020, DOI: 10.5281/zenodo.3928498, pp. 45–77.
openaire +3 more sources
Universal portable sundials for night use
, 2021 Mots clefs Résumé Abaque ; Apianus ; cadran de hauteur ; brachiolum ; étoile ; heure de nuit ; Krabbe ; Regiomontanus. Dès le début du XVI es siècle, on a imaginé comment déterminer l'heure la nuit à l'aide de cadrans solaires portables de hauteur. Une seule réalisation semble vraiment y avoir répondue. Complément à « Cadran de Regiomontanus » (revue L'
openaire +1 more source