Browse Items (71 total)

https://www.gathering4gardner.org/g4g13gift/ExchangeArchive-SerpentineSymmetries-G13-072-1.jpg
A full-color printed card showing and explaining Serpentine Symmetries, a beaded jewelry set that illustrates the 13 wallpaper groups compatible with bead crochet rope. Serpentine Symmetries was part of the 2018 Joint Mathematics Meetings Exhibition…

https://gathering4gardner.org/g4g13gift/art/MargaretKepner-GiftExchange-4x13-G4G13.pdf
The talk corresponding to this paper can be found here: https://www.youtube.com/watch?v=ZijlID83FTg&t=15s  

https://www.gathering4gardner.org/g4g13gift/ExchangeArchive-Tiling-G13-053-1.jpg
A circle sticker with an image of a hyperbolic tiling of 4-gons and 13-gons.

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https://www.gathering4gardner.org/g4g13gift/ExchangeArchive-Die13-G13-035-1.jpg
A cube is used as a fair die of 6 faces. However, there are many dice of different shapes on the market. To make them fair, most of them usually have some symmetric shapes. I classify these variants of dice on the market into two groups. First, let's…

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https://www.gathering4gardner.org/g4g13gift/ExchangeArchive-SpanningTree-G13-075-1.jpg
Artwork of a low-resolution figurative tree.

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https://www.gathering4gardner.org/g4g14gift/ExchangeArchive-Acura-G14-048-1.jpg
One of my interests is abstract photography, using ordinary photographs as the “paint” and using spatial and mathematical transformations to create an image from one or more sources. One transformation that I’ve been exploring is “Inside Out”, which…

https://www.gathering4gardner.org/g4g13gift/ExchangeArchive-Panama-G13-063-1.jpg
My gift is an Ace of Spades personalized with a unique image that combines the G4G logo together with a symbolic representation of Panamanian culture.

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https://www.gathering4gardner.org/g4g14gift/ExchangeArchive-AkiosStar-G14-023-1.jpg
I invented the Fibonacci Turbine in an origami way. The wing itself functions as a rotating shaft. The structure is so simple that it is robust. It can be used for many engineering applications.

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https://www.gathering4gardner.org/g4g13gift/ExchangeArchive-Deltoidal-G13-042-1.jpg
The included piece will be a decorated deltoidal icositetrahedron net, which can be colored and subsequently cut and assembled. Alternatively, those with a cutting machine can cut the closed regions on each face of the polyhedron to obtain an…

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https://www.gathering4gardner.org/g4g13gift/ExchangeArchive-FlexagonUntitled-G13-095-1.jpg
The Chiral Icosahedral Hinge Elastegrity resulted from a Bauhaus paper folding exercise, that asks material and structure to dictate form. The key new object obtained in 1982 involved cutting slits into folded pieces of paper and weaving them into 8…

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https://www.gathering4gardner.org/g4g13gift/ExchangeArchive-Crochet-G13-104-1.jpg
Giving a little history and step by step instructions on how to crochet regular hyperbolic octagon with 45-degree angles.

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https://www.gathering4gardner.org/g4g13gift/ExchangeArchive-Clock-G13-057-1.jpg
A clock face showing the logo for G4Gn at the nth hour, for n=5-12, and the G4G13 logo in the center, and miscellaneous MG items for hours1-4.

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https://www.gathering4gardner.org/g4g13gift/ExchangeArchive-MagicCircles-G13-034-1.jpg
This configuration of thirteen sets of concentric circles grows out of an ancient tradition of visual alchemy. The faculties of imagination and intuition are employed as guides in the discovery of new and meaningful relationships between geometric…

https://www.gathering4gardner.org/g4g13gift/ExchangeArchive-Cloaking-G13-040-1.jpg
No-one really knows what quasicrystals look like. But we do know, from the diffraction patterns of X-ray crystallography, that they bear a resemblance to Penrose tiling. By combining artistic exploration with mathematical insight into the…

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https://www.gathering4gardner.org/g4g13gift/ExchangeArchive-World-G13-087-1.jpg
Two Lenticular cards from Germany - one shows Pangea the last supercontinent 300 million years ago, and the second card shows the map of the globe in the next Heat Age when all the ice melts. This may result in a net gain in land!

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https://www.gathering4gardner.org/g4g13gift/ExchangeArchive-Logo-G13-110-1.jpg
My artwork, 'Golden Magic', especially created for G4G13 conference is dedicated to four remarkable men: Martin Gardner, Raymond M. Smullyan, Tom Rogers, and Al Seckel. Rich in golden mean proportions the composition consists of 13 elements placed…

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