B. Kiilerich & H. Torp, The Rotunda in Thessaloniki and its Mosaics (original) (raw)

Chromatic Variation in Late Antique Rainbows

CLARA - Classical Art and Archaeology, vol. 7, 2021

Depictions of rainbows in late antique and early Byzantine art follow the normal sequence of the spectral colours, only some bows exclude blue and violet. Another characteristic feature of the late antique rainbow is the inclusion of white and the non-spectral hue pink. In order to investigate chromatic characteristics, I use as case studies the comparatively few extant rainbow images of third-to sixth-century date from Thessaloniki, Constantinople, Rome and Ravenna. The rainbows, depicted in a floor mosaic, three illuminated manuscripts and three monumental wall mosaic decorations, are either part of narratives or rainbow-patterned borders used to frame other scenes. To throw light on the chromatic variations, ancient descriptions of rainbows are brought into the discussion and the representations are seen in relation to meteorological research. I propose that the late antique rainbow images follow two visual traditions, both of which can be traced back to the Hellenistic period and both of which are grounded in scientific research. One is the sunrise/sunset rainbow that ranges from red to green. I argue that the exclusion of blue/violet may be due to its being more difficult to see against the sky, the wavelength of violet being closest to the boundary beyond which coloured light tends to look black. The variant type, found especially in the church mosaics, covers the whole spectrum from red via green to violet as well as pink and white. I suggest that the non-spectral pink hues can be understood as the gradations of red that can sometimes be observed in the natural bow and that the white band provides highlight, which combined with a silver line indicates a strong luminance. The dictionary defines a rainbow as 'an arch of colours formed in the sky in certain circumstances, and caused by the refraction and dispersion of the sun's light by rain or other water droplets in the atmosphere. The colours of the

The Olympia Protocol. Action for Dealing with the Effects of Natural Disasters on Cultural Heritage Monuments

2010

Risks from natural disasters always have been a major concern because they can cause extensive damage to World Natural and Cultural Heritage. This is particularly so today because many natural disasters are brought about, or increased, by climate change throughout the world. Reducing and managing the risk of man-made and natural disasters are major challenges before the world community. Disasters are the consequences of uncontrolled human activity and poor environmental management, bringing damage to World Heritage monuments inevitably exposed to these dangers. In 2007 we had devastating forest fires in the area of Ancient Olympia. These extensive fires burned more than 150,000 ha in forest and agricultural land in five days. UNESCO, has adopted a Strategy on Risk Reduction at World Heritage Properties, and the World Heritage Centre developed a program to include Disaster Risk as a factor of management, which at the same time, also involves familiarizing the general public with this...

Antonaras A special group of early Christian gems from Greece

Semi-precious stones are frequently depicted in Roman and early Christian works of art, such as wall mosaics, paintings and textiles. These depictions present them as either parts of jewelled frames, or as decora- tions in buildings, architectural elements like columns, or other objects like thrones, wreaths, shields, tables, crosses, book bindings, etc. They appear usually as green, blue and red in colour, mostly of oblong and oval shapes. The prototypes of these gems, or rather the glass rendering of them, is the focus of this chapter. Only recently discovered and other- wise unknown, these large-size (7 × 4 × 0.5 cm) emerald green glass gems deriving from six early Christian excavations in northern Greece and a harbour site in Constantinople, will be presented. Their use will be discussed in relation to their symbolic meaning connected to theological texts and to their representations in contemporaneous mural paintings and mosaics and textiles. Furthermore, Thessaloniki is identified as the production site of at least one type of these gems according to relevant finds from a late sixth-century glass workshop, while the distribution pat- tern of these products in the wider region of Thessaloniki’s hinterland will shed light on a facet of the circulation of glass objects on a regional trade level.