Pursuing polygonal privacy

Article Abstract:

Possible solutions to the Opaque Square problem are examined to establish the usefulness of combinatorial geometry. The problem assumes the need for an opaque fence, a barrier to prevent a straight line-of-sight across a plot of property, that must be made as short as possible. Numerous configurations are explored, from a simple square fence to a Steiner tree.

Models, Geometrical models, Polygons, Combinatorial geometry

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Murder at Ghastleigh Grange

Article Abstract:

Sherlock Holmes is invited to solve the murder of Miss Melpomene Beetroot, who was bludgeoned with a chandelier in her room at Ghastleigh Grange. The solution of the puzzle relies on the use of graph theory and the Grinberg formula.

Methods, Mathematical recreations

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The rise and fall of the lunar m-pire

Article Abstract:

A previously unknown chapter of Jules Verne's 'Round the Moon,' published in 1865, found and restored by Louvre curator Jean-Jacques LeMaire, is presented. The coloring of maps depicting several adjacent empires is discussed.

Column, Authorship, Excerpt, Graph theory, Round the Moon (Book), Verne, Jules

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