Athanasii Kircheri (1601/02-1680)
Ars magna lucis et umbrae, in decem libros digesta. 1646
Magnes siue de arte magnetica opus tripartitum. 1654

Dos de sus obras claves pueden bajarse (en versión PDF sencilla) desde la página de La Universidad de Granada. Ver enlaces más abajo.
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The relevance of Kircher’s work is hard to overstate, and even when there is no one sole occurrence in the development of science and western knowledge that is truly the key that marks the beginning of modernity, from the publishing stand point the works of this German Jesuit can be understood as determinant in the transit between what would be ancient-science and the science that in contrast is centered and based on rational and contrasted analysis. Be it as it may, Kircher, and his so well known (amongst other reasons for the so very interesting illustrations it contains) book Ars magna lucis et umbrae, is an important referent for the understanding of the general development of optics and the knowledge of the behavior of light itself.
Two of his important works can be downloaded (in simple PDF version) from the Univesridad de Granada’s webpages. See links bellow.Ars magna lucis et umbrae, in decem libros digesta. 1646
http://digibug.ugr.es/handle/10481/18456
Magnes siue de arte magnetica opus tripartitum. 1654
http://digibug.ugr.es/handle/10481/12006
Retrato / Portrait: Wikimedia Commons
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