The ancient Greek conical sundial of the National Archaeological Museum of Athens (original) (raw)

Abstract

The ancient Greek sundial described in this work is part of the Prehistoric and Classical Antiquities collection of the National Archaeological Museum of Athens with index catalog No. 3158. The sundial, which was recovered from the ruins of the ancient Dionysus Theater nearby Acropolis, is a marble construction of conical type with a gnomon. On the dial surface a few points of obvious damage can be observed. The geometrical dimensions of this sundial are elaborately measured and calculations of its characteristic parameters, such as the angle formed between the cone’s axis and the generatrix, the gnomon’s length and the geographical latitude of operation, have been made. "

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