About: Gyrobifastigium   Sponge Permalink

An Entity of Type : owl:Thing, within Data Space : 134.155.108.49:8890 associated with source dataset(s)

This polyhedron was the 26th detailed in Johnson's seminal paper, consequently it's often notated J26, the 26th . It may be formed by joining together two triangular prisms at square sides, ensuring that the axis of one prism is rotated (the "gyro" in the name) with respect to the other. So... the "gyro" in the name is accounted for, the "bi" I assume refers to the two prisms, so what is "fastigium"? Aha!! A bit of googling reveals that fastigium = roof; peak; gable. Cool -- it's a pair of rotated roofs -- got it!

AttributesValues
rdfs:label
  • Gyrobifastigium
rdfs:comment
  • This polyhedron was the 26th detailed in Johnson's seminal paper, consequently it's often notated J26, the 26th . It may be formed by joining together two triangular prisms at square sides, ensuring that the axis of one prism is rotated (the "gyro" in the name) with respect to the other. So... the "gyro" in the name is accounted for, the "bi" I assume refers to the two prisms, so what is "fastigium"? Aha!! A bit of googling reveals that fastigium = roof; peak; gable. Cool -- it's a pair of rotated roofs -- got it!
sameAs
Rods
  • 14(xsd:integer)
Squares
  • 4(xsd:integer)
dcterms:subject
PageTitle
  • Gyrobifastigium
filename
  • Gyrobifastigium.jpg
Type
Caption
  • J26 -- the Gyrobifastigium
dbkwik:geomag/prop...iPageUsesTemplate
Author
  • --01-09
Title
  • Gyrobifastigium
Spheres
  • 8(xsd:integer)
Triangles
  • 4(xsd:integer)
abstract
  • This polyhedron was the 26th detailed in Johnson's seminal paper, consequently it's often notated J26, the 26th . It may be formed by joining together two triangular prisms at square sides, ensuring that the axis of one prism is rotated (the "gyro" in the name) with respect to the other. So... the "gyro" in the name is accounted for, the "bi" I assume refers to the two prisms, so what is "fastigium"? Aha!! A bit of googling reveals that fastigium = roof; peak; gable. Cool -- it's a pair of rotated roofs -- got it! The Gyrobifastigium is notable because it is the only space-filling Johnson Solid. So I made a pair of 'em to play with fitting them together. Neat!
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