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Margarida Archinard [4]M. Archinard [1]
  1.  5
    The Diagram of Unequal Hours.Margarida Archinard - 1990 - Annals of Science 47 (2):173-190.
    This paper aims, on the one hand, to determine the valid span of the diagram of unequal hours and, on the other, to find a mathematical expression for the error. It is found that the diagram is valid for the two days of the equinoxes and for the times when the sun is on the horizon or on the meridian. This subject has previously been treated by Delambre in 1819 and Drecker in 1925, but not comprehensively.
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  2.  19
    Les Cadrans Solaires Analemmatiques.Margarida Archinard - 2005 - Annals of Science 62 (3):309-346.
    Le cadran solaire analemmatique est présenté pour la première fois par un mathématicien français, appelé Vaulezard, dans un petit fascicule publié en 1640. Suit un deuxième ouvrage, plus complet, en 1644. Dernier venu, ce cadran attire l'attention d'importants savants tels que Foster et Lalande. Parfait dès le départ, il a néanmoins la singulière particularité d'inspirer diverses tentatives d'amélioration, plutôt infructueuses, et d'être à l'origine de quelques variétés de cadrans analemmatiques qui, elles, connaissent un franc succès. Nous apportons la preuve trigonométrique (...)
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    Une Classification des Cadrans Solaires.Margarida Archinard - 2007 - Annals of Science 64 (4):471-524.
    The first attempt at a classification of sundials appeared only in 1953, in the catalogue established by Henri Michel for the Museum of Liège. It was immediately followed, in the same year, by the article by Kathleen Higgins, exclusively dedicated to this topic. The influence of this second study has spread out throughout the numerous articles on sundials that have been subsequently published. The aim of the present paper is to bring some order to these two old classifications, which are (...)
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  4. A Classification of Sundials.Margarida Archinard - 2007 - Annals of Science 64 (4):471-524.
    Summary The first attempt at a classification of sundials appeared only in 1953, in the catalogue established by Henri Michel for the Museum of Liège. It was immediately followed, in the same year, by the article by Kathleen Higgins, exclusively dedicated to this topic. The influence of this second study has spread out throughout the numerous articles on sundials that have been subsequently published. The aim of the present paper is to bring some order to these two old classifications, which (...)
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  5. Anelemmatic Sundials.M. Archinard - 2005 - Annals of Science 62 (3):309-346.
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