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@robertfathauer.bsky.social

145 Followers  |  59 Following  |  39 Posts  |  Joined: 01.06.2025  |  1.5112

Latest posts by robertfathauer.bsky.social on Bluesky


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Charles O Perry sculpture in the lobby of the Hyatt Regency in San Francisco

19.02.2026 14:28 β€” πŸ‘ 8    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

I'm almost certain the answer is yes.

24.01.2026 20:36 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Fractal self-replicating tile created by iterating a tetrakite seven times

23.01.2026 19:53 β€” πŸ‘ 13    πŸ” 4    πŸ’¬ 2    πŸ“Œ 0
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Wth Sujan Shrestha at the Computer Museum, in Hunt Valley, MD last week. This is one of around 70 Apple-1 computers whose whereabouts are known, out of around 200 total made.

12.01.2026 18:24 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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The online gallery for 2026 Joint Mathematics Meetings Exhibition of Mathematical Art is now live: gallery.bridgesmathart.org/exhibitions/....

11.12.2025 19:12 β€” πŸ‘ 25    πŸ” 12    πŸ’¬ 0    πŸ“Œ 2
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Some pavers spotted in Cairo last month

29.11.2025 21:41 β€” πŸ‘ 6    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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A Truchet cafe, in Cairo last month

28.11.2025 22:37 β€” πŸ‘ 9    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Ancient Egyptian ceiling with a star motif

Ancient Egyptian ceiling with a star motif

5-stars were commonly used on the ceilings of tombs and other buildings in Ancient Egypt to depict the heavens. They are usually not connected to one another, but they are connected in this ceiling in the Ptolemaic Denderah Temple to form a sort of tessellation of hexagons and quadrilaterals.

20.11.2025 13:30 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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Ancient Egyptian numbers used to track sacrifices on the side of the Temple of Ramesses III (1217 BC - 1155 BC) in Luxor. A vertical tick mark denotes 1 and an inverted U ten.

09.11.2025 19:02 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Great "tessellation" on the ceiling of the 20th Dynasty (ca 1100 BC) Tomb of Anherkha in the Valley of the Workers in Luxor

09.11.2025 18:58 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Another type of Cairo pentagon paver in Cairo.

05.11.2025 07:38 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Everyone is invited to attend the SCULPT 2025: Show & Tell, a digital gathering that celebrates creative exploration across art, geometry, design, and fabrication.
Date: Friday, November 7,Β 2025
Time: 8:00 – 10:30 AM (PST)
Zoom Link: cca.zoom.us/j/9826107944...

05.11.2025 05:07 β€” πŸ‘ 7    πŸ” 4    πŸ’¬ 0    πŸ“Œ 1
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Polyaboloes, polygons formed by joining isosceles right triangles in edge-to-edge fashion, can also be arranged iteratively to form fractal self-replicating tiles. A particular tetrabolo was used to form these two reptiles, with mirroring between successive iterations employed in the right one.

24.10.2025 17:15 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Two fractal self-replicating tiles formed by iterating a 4-rhomb. On the right with mirroring between successive iterations.

22.10.2025 17:32 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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This weekend would be a great time to submit your art for the exhibition to be held at the Joint Mathematics Meetings. Take advantage of this opportunity to share your work with over 5000 attendees this January in Washington, DC. You’ll need to submit by the 15th at gallery.bridgesmathart.org.

11.10.2025 17:35 β€” πŸ‘ 5    πŸ” 2    πŸ’¬ 0    πŸ“Œ 1
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Polyrhombs, formed by joining 60Β°-120Β° rhombi in edge-to-edge fashion, can also be iterated to form self-replicating tiles. A 3-rhomb iterates to the same fractal as the envelope of the terdragon curve. Mirroring between successive iterations yields a very different looking reptile (right).

08.10.2025 15:17 β€” πŸ‘ 7    πŸ” 1    πŸ’¬ 0    πŸ“Œ 1
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I just finished a new website on fractal self-replicating tiles ("reptiles") based on polyominoes, polyhexes, and polyiamonds: www.mathartfun.com/fractaldiver...

02.10.2025 17:22 β€” πŸ‘ 16    πŸ” 3    πŸ’¬ 0    πŸ“Œ 1
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New sculpture illustrating the fact that cutting a three-half-twists band lengthwise results in a trefoil knot. Unglazed ceramic and leather cord.

26.09.2025 17:25 β€” πŸ‘ 17    πŸ” 2    πŸ’¬ 0    πŸ“Œ 2
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Submissions are now being accepted for the Exhibition of Mathematical Art to be held as part of the Joint Mathematics Meetings, Washington, DC, in January of 2026. Apply online through October 15 at gallery.bridgesmathart.org. pic.x.com/MGSEyexSzo

25.09.2025 20:35 β€” πŸ‘ 17    πŸ” 9    πŸ’¬ 0    πŸ“Œ 1
Alpha Omega d24
YouTube video by Henry Segerman Alpha Omega d24

youtu.be/fgMoxEAZtoA?...
New from The Dice Lab; available at mathartfun.com/DiceLabDice....

24.09.2025 18:50 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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A new article is out of which I'm a coauthor: "Visualization of Escher-like hyperbolic tessellations": www.sciencedirect.com/science/arti...

11.09.2025 17:35 β€” πŸ‘ 26    πŸ” 10    πŸ’¬ 1    πŸ“Œ 1

To submit your work, please fill out the Google Form atΒ docs.google.com/forms/d/1SQA...

05.09.2025 21:45 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Submissions are now being accepted through September 14 for SCULPT 2025. Accepted work will be presented in a ZOOM Show and Tell event on November 7. In addition, works will be digitally showcased in the exhibition section of SCULPT 2025 and in a proceedings volume.

05.09.2025 21:45 β€” πŸ‘ 18    πŸ” 8    πŸ’¬ 1    πŸ“Œ 0
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This mixed-media piece consists of an unglazed black-clay ceramic band with two half twists, making it a two-sided object. Steel dowels with long and short ends are spaced along the centerline to define a second band with two half twists, orthogonal to the first.

29.08.2025 17:18 β€” πŸ‘ 23    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
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Windows, Uzekistan

09.08.2025 06:28 β€” πŸ‘ 17    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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Amir Temur Mausoleum, Samarkand

01.08.2025 15:51 β€” πŸ‘ 7    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Aksaray Masoleum, Samarkand, Uzbekistan

01.08.2025 15:09 β€” πŸ‘ 6    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Tessellated pavers in Azerbaijan

25.07.2025 12:39 β€” πŸ‘ 7    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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This needs iterating. In Sheki, Azerbaijan.

22.07.2025 08:19 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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"Needle Tower", by Kenneth Snelson, at the KrΓΆller-MΓΌller museum, the Netherlands

14.07.2025 12:57 β€” πŸ‘ 8    πŸ” 0    πŸ’¬ 1    πŸ“Œ 1

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