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Carlos Neumann
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Carlos Neumann

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Just WOW.
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Awesome!
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Carlos Neumann

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On July 18, 2011 a team of mathematicians from Freie Universität Berlin worked for 8.5 hours to build a Zometool "Biggie" (model of the 600-cell polytope) at the KaDeWe department store in Berlin (the largest in continental Europe). Photos cannot convey the beauty of this model!
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Looks Big!
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Have him in circles
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Carlos Neumann

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Zometool Biggie-KaDeWe Berlin, July 18, 2011
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As described by a mathematician from FU Berlin:

"Biggie" is a three-dimensional projection of a four-dimensional body,specifically the truncated 600-cell. A 600-cell is like cube, tetrahedron (triangular pyramid) or an icosahedron, platonic solid - but lives in four dimensions.

Platonic solids are characterized by the fact that they are limited by a single type of regular pages.(When the dice are, for example, squares, triangles in the triangular pyramid and icosahedron with 20 triangles.) Is the four-dimensional 600-cell limit of 600 tetrahedra.

In a truncated 600-cell these tetrahedra are partially cut off, so that a four-dimensional body, which is bounded by 120 and 600 truncated icosahedra tetrahedra. Biggie is like the three-dimensional "shadows" of this four-dimensional body.
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Have him in circles
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Paul Hildebrandt's profile photo
John Ball's profile photo
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Theodore Coker's profile photo
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To be avoided. We took our beloved 11-year old cat here because he had diarrhea. Their recommended exams —some of which seemed entirely gratuitous— totaled $600+ We wound up asking for a less comprehensive set of exams (adequate for what was ailing him and skipping the "let's test for this too" category) and were promptly billed for $400+ OK, fine, we want our kitty healthy. "Bring him back tomorrow for urine and feces samples" we did. They found a urinary infection and 2 types of parasites. "He'll have to take an antibiotic + 2 anti-parasitics" fine. "If you want we can give him an injected antibiotic and you'll just have to give him the antiparasitics" Sounded good; anyone who's tried to fed medicines to a cat knows it's no fun. We picked him up an were charged an additional $130 We get home and decide to ask WHICH antibiotic they had administered. It turned out to be "convenia" which —we later found out— is primarily used for skin infections (??) and has proven fatal for many pets. Needless to say we were given zero warning of potential danger from this injection. Our cat is clearly feeling/acting sicker then when we took him in. We are hoping and praying he will pull through.
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