Search
Subject Categories:
 Art (423)
 Asperger's (32)
 Blogging (9)
 China and the Han (9)
 eBay (3)
 Education (89)
 Fiction (27)
 Geography (27)
 History (37)
 Humor (43)
 Life (352)
 Mandalas (119)
 Mathematics (1,174)
 Mental Health (71)
 Music (43)
 Mysteries (14)
 Politics (111)
 Quotations (63)
 Religion (58)
 Satire (7)
 Science and Scientists (115)
 Follow RobertLovesPi's Blog on WordPress.com
MostViewed Posts, Recently:

Recent Posts
 Meditating and Not
 Thoughts on Colonizing Space
 On Taxation, and Representation, in Public Education
 A Rhombic Dodecahedron, Made of Icosahedra, and Tall Triangular Antiprisms
 Honeycomb Made of Cuboctahedra and Octahedra
 Spectral Circles on a Cuboctahedron
 Spectral Circles on a Truncated Icosahedron
 Spectral Circles
 Heptagrammic
 June 13 Special Election in the PCSSD
Explore RobertLovesPi By Topic
Arkansas Art Asperger's Aspie astronomy atheism atheist chemistry chiral circle cluster compound cube cuboctahedron dodecahedron dual Education enneagon faceted faceting geometric geometrical geometrical art geometry Golden Ratio hexagon Humor humour icosahedron icosidodecahedral icosidodecahedron kite language life mandala mandalas math mathematical mathematical art Mathematics music nearmiss nonagon octagon octahedron op art pentagon physics politics polygon polyhedra polyhedral polyhedron quotation quote religion rhombic dodecahedron rhombicosidodecahedron rhombic triacontahedron rhombus school science snub dodecahedron star stellated stellation symmetry tessellation tetrahedron tiling triangle truncated icosahedron USA words zonohedronHit Counter
 235,324 hits
Tag Archives: rhombus
Zonohedrified Rhombicosidodecahedron with 870 Rhombic Faces
Manipulating known polyhedra in the effort to find new ones, as I did here, is made easy with Stella 4d, a program available at this website.
Posted in Mathematics
Tagged 870, geometry, Mathematics, polyhedra, polyhedron, rhombi, rhombic faces, rhombus, zonohedra, zonohedron
2 Comments
A Rhombic Cage
This cage is made of 36 identical rhombi, and has six openings. I made it with Stella 4d, a program available at this website.
Posted in Art, Mathematics
Tagged Art, cage, geometric, geometrical, mathematical, rhombi, rhombic, rhombus
2 Comments
Fractiles’ Mandala, Based on Angles of Pi/7 Radians
Although this was based on something I constructed using the Fractiles7 magnetic tiling toy, I did not have enough magnetic pieces to finish this. The idea was, therefore, converted into a (nonEuclidean) construction using Geometer’s Sketchpad, and then refined using … Continue reading
Posted in Art, Mandalas, Mathematics
Tagged 14, 7, Art, fractiles, fractiles7, Geometer's, geometric, geometrical, geometry, mandala, mathematical, Mathematics, pi/7, radial, radian, rhombi, rhombus, Sketchpad, tessellation, tiling
Leave a comment
A Rhombic Mandala Based on Pi Over Nine
The interior angles in these rhombi all measure π/9 radians, or some wholenumber multiple of that amount, up to 8π/9 radians.
Posted in Art, Mandalas, Mathematics
Tagged 9, Art, geometric, geometrical, geometry, mandala, mathematical, Mathematics, nine, ninth, radian, rhombi, rhombus, rhombuses
1 Comment
The Fractiles7 Refrigerator Experiment, Part I
To begin this experiment, I first purchased two refrigeratorsized Fractiles7 sets (available at http://fractiles.com/), and then, early on a Sunday, quietly arranged these rhombusshaped magnets on the refrigerator in our apartment (population: 4, which includes two math teachers and two teenagers), … Continue reading
Posted in Education, Life, Mathematics
Tagged Education, experiment, fractiles, fractiles7, geometry, magnet, Mathematics, refrigerator, rhombi, rhombus, tile, tiling
2 Comments
A Forgotten Mandala, from 2010
Someone found this, and “liked” it, in my old Facebook pictures. I had forgotten all about it, until this happened. It is a mandala, made of rhombi, with ninefold symmetry, made in 2010 with Geometer’s Sketchpad — two years before … Continue reading
Posted in Art, Mandalas, Mathematics
Tagged 9, Art, geometrical, geometry, mandala, mathematical, Mathematics, nine, ninefold, rhombi, rhombus
Leave a comment
A Rhombic Ring of Icosahedra, Leading to a Rhombic Dodecahedron Made of Icosahedra
As it turns out, eight icosahedra form this rhombic ring, by augmentation: Measured from the centers of these icosahedra, the long and short diagonal of this rhombus are in a (√2):1 ratio. How do I know this? Because that’s the … Continue reading
Posted in Mathematics
Tagged geometry, icosahedra, icosahedron, lattice, Mathematics, polyhedra, polyhedron, rhombic, rhombic dodecahedra, rhombic dodecahedron, rhombus, ring
2 Comments