Fashion fans have been left baffled by the inclusion of a triangle shape on many sweatshirts and jumpers, but traditionally, ...

The triangle shape on sweatshirts and jumpers has become more of a fashion trend in recent years - but it turns out there's a practical reason for the design dating back a century ...

Named for Plato, who theorized that the classical elements were made of these regular polyhedrons, three of the Platonic solids are composed of equilateral triangles: the tetrahedron, octahedron, and ...

My theory for this is that it enables the instrument to hang freely while maintaining a horizontal section for ease of striking. It would, I suppose, work with pentagons, heptagons and nonagons too ...

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