One World under the Sun: Cosmography and Cartography in the Liber Floridus
To a modern cartographer a map should represent geographic reality by means of coordinates such as latitude and longitude. Not one of the cartographic images in the Liber Floridus corresponds to this definition, yet not a single work on historical cartography omits the early-twelfth-century encyclopaedia
Instruments and demonstrations in the astrological curriculum: evidence from the University of Vienna, 1500–1530
The University of Vienna presents something of a puzzle for his- torians of astronomy and astrology. During the fifteenth century the university was alma mater to Johannes de Gmunden, Georg von Peuerbach, and Johannes Regiomontanus, who were central to developments in astronomy and astrology throughout Europe. Yet there is little evidence of advanced instruction in astronomy or astrology by any of these masters.
Alternatives to Ptolemy: Astronomy in Carolingian Schools
But was there any real science in those tumultuous times?
From Pagan Cosmos to Christian Creation: A Historical Path from Late Antique Priscillianus to Medieval Hildegard
Why and how do ancient and medieval Christians look so different to the sky, future and world as the pagans did?
Islamic astronomy
Although the story of how Greek astronomy passed to the Arabsis comparatively well known, the history of its transformation by Islamic scholars and subsequent retransmission to the Latin West is only now being written
Ancient Skies of Northern Europe: Stars, Constellations, and the Moon in Nordic Mythology
Nordic mythology from 13th century Iceland contains descriptions that provide traditional depictions of the night sky, constellations, and the Moon. These were not only incorporated within the mythology but also formed the basis for their gods
Could Vikings have navigated under foggy and cloudy conditions by skylight polarization?
There is archaeological evidence that the Vikings did not possess magnetic compass, and they navigated on the open sea with the help of a sundial composed of a wooden disc with a perpendicular gnomon in its centre.