2023 Bridges Conference Art Exhibition
Enric Brasó Campderrós, Josep Tarrés
Artists
Enric Brasó Campderrós
Vicepresident
Mathematics Museum of Catalonia MMACA
Cornellà de Llobregat, Barcelona, Spain
Statement
Enric, mathematician, and Josep, engineer, are active members of the MMACA (Museum of Mathematics of Catalonia). We develop and build hands-on and virtual hands-on exhibits, didactic materials and activities for formal and non-formal education.
Artworks
Starnary octahedron
40.0 x 28.0 x 28.0 cm
3D-printed and transparent methacrylate
2023
Within the octahedron there is a 3D-printed star composed of 24 identical triangles. The vertices of each triangle correspond to the center of the octahedron, the midpoint of one of the 12 edges of the octahedron, and the incenter of one of the 2 octahedron faces opposite that edge. The 24 triangles are located on the 6 secondary symmetry planes of the octahedron forming an irregular star composed of the union of 4 overlapping triangles. The 3 main symmetry planes of the octahedron are not captured by the 3D star geometry. So, even though the 3D star is defined by the octahedron, it is difficult to perceive the latter only from the star on its own. This relationship is only revealed when packing the 3D star within a transparent octahedron.