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Decorative Archimedes spirals.

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Presentation on theme: "Decorative Archimedes spirals."— Presentation transcript:

1 Decorative Archimedes spirals.
Decorative Archimedes spirals. Top: detail of spirals on a late Bronze Age clay jug from Akrotiri, Santorini (Wikimedia Commons, user: Zde). Bottom left: triple spirals on the entrance stone of the prehistoric monument at Newgrange, Ireland (Wikimedia Commons, user: Jal74). Bottom right: the winding spiral of the Phaistos Disc, a clay artefact dating from the second millennium BC (Wikimedia Commons, user: C messier). Jane Alty et al. Pract Neurol doi: /practneurol ©2017 by BMJ Publishing Group Ltd

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