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hepsilon-delta.bsky.social
hepsilon-delta
@hepsilon-delta.bsky.social
130 followers 170 following 4 posts
Spouse and parent. Mathematics at University of Aberdeen. Algebraic topology, homological stability, magnitude homology. Collector of houseplants, yo-yos, hobbies.
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hepsilon-delta.bsky.social
Visiting Oxford for a viva, and there’s time to look at some carved stone balls in the Ashmolean museum.
Scottish Neolithic carved stone ball. (Ashmolean museum AN1927.2727 or AN1927.2730) Carved from red stone, about the size of a tennis ball, and decorated with 6 large raised discs (arranged like the faces of a cube) and 8 raised triangles (arranged like the vertices of the cube). Scottish Neolithic carved stone ball. (Ashmolean museum AN1927.2727 or AN1927.2730) Carved from pale stone, a bit smaller than a tennis ball, and decorated with raised knobs (possibly 12 of them arranged like the faces of a dodecahedron).
December 10, 2024 at 11:22 AM