Tesseractical Floor - Revision history

Old Dickens: link

2021-12-13T03:18:16Z

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	A floor of the [[Tower of Art]] at [[Unseen University]] mentioned in {{UA}} as an unreliable floor where all the toilets had turned into sheep - or, at least, such was vouchsafed to Mr [[Nutt]] by one of the scullery boys.		A floor of the [[Tower of Art]] at [[Unseen University]] mentioned in {{UA}} as an unreliable floor where all the toilets had turned into sheep - or, at least, such was vouchsafed to Mr [[Nutt]] by one of the scullery boys.


	==Annotation==		==Annotation==
			In geometry, the {{wp\|Tesseract\|tesseract}}, also called an 8-cell or regular octachoron, is the four-dimensional analog of the cube. The tesseract is to the cube as the cube is to the square. Just as the surface of the cube consists of 6 square faces, the hypersurface of the tesseract consists of 8 cubical cells. The tesseract is one of the six convex regular 4-polytopes.
	~~[[Image:240px-Schlegel_wireframe_8-cell.png\|200px\|right\|thumb\|A Tesseract]]~~ In geometry, the tesseract, also called an 8-cell or regular octachoron, is the four-dimensional analog of the cube. The tesseract is to the cube as the cube is to the square. Just as the surface of the cube consists of 6 square faces, the hypersurface of the tesseract consists of 8 cubical cells. The tesseract is one of the six convex regular 4-polytopes.

	A generalization of the cube to dimensions greater than three is called a “hypercube”, “n-cube” or “measure polytope”. The tesseract is the four-dimensional hypercube, or 4-cube.		A generalization of the cube to dimensions greater than three is called a “hypercube”, “n-cube” or “measure polytope”. The tesseract is the four-dimensional hypercube, or 4-cube.

Osiris: 1 revision: Discworld import 2

2012-09-24T00:13:53Z

1 revision: Discworld import 2

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TC01: Adding to locations AND UU locations

2009-11-28T03:51:30Z

Adding to locations AND UU locations

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A floor of the [[Tower of Art]] at [[Unseen University]] mentioned in {{UA}} as an unreliable floor where all the toilets had turned into sheep - or, at least, such was vouchsafed to Mr [[Nutt]] by one of the scullery boys.

==Annotation==

[[Image:240px-Schlegel_wireframe_8-cell.png|200px|right|thumb|A Tesseract]] In geometry, the tesseract, also called an 8-cell or regular octachoron, is the four-dimensional analog of the cube. The tesseract is to the cube as the cube is to the square. Just as the surface of the cube consists of 6 square faces, the hypersurface of the tesseract consists of 8 cubical cells. The tesseract is one of the six convex regular 4-polytopes.

A generalization of the cube to dimensions greater than three is called a “hypercube”, “n-cube” or “measure polytope”. The tesseract is the four-dimensional hypercube, or 4-cube.

According to the Oxford English Dictionary, the word tesseract was coined and first used in 1888 by Charles Howard Hinton in his book A New Era of Thought, from the Greek “τέσσερεις ακτίνες” (“four rays”), referring to the four lines from each vertex to other vertices. Some people have called the same figure a tetracube, and also simply a hypercube (although the term hypercube is also used with dimension greater than 4).

A tesseract is bounded by eight hyperplanes (xi = ±1). Each pair of non-parallel hyperplanes intersects to form 24 square faces in a tesseract. Three cubes and three squares intersect at each edge. There are four cubes, six squares, and four edges meeting at every vertex. All in all, it consists of 8 cubes, 24 squares, 32 edges, and 16 vertices.

No, I don't understand it either. Interesting place to clean toilets, however...

[[Category:Locations]]
[[Category:Unseen University Locations]]