Tootfinder

"Tiling with Three Polygons is Undecidable"
Erik D. Demaine; Stefan Langerman 17 Sep 2024
Abstract
We prove that the following problem is co-RE-complete and thus undecidable: given three simple polygons, is there a tiling of the plane where every tile is an isometry of one of the three polygons (either allowing or forbidding reflections)? This result improves on the best previous construction which requires five polygons.
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It remains open whether tiling …

Old graphical editor prototype (2019/20) with various ways of managing multiple selections of graphical entities, incl. align/distribute, duplicate, invert, select/deselect region (box/convex hull). editor is generic. items could be files, shapes, mesh vertices, 2d/3d points, graph nodes, whatever...
Been re-animating this prototype and toying with integrating it into my personal note taking & media management tool to organize items into piles for batch-processing and to easier app…

WASTE LAND | How raw sewage pumped by West Rand municipality is killing rivers, farms, and business
by Sikonathi Mantshantsha
https://www.news24.com/news24/investigations/wa…

WASTE LAND | How raw sewage pumped by West Rand municipality is killing rivers, farms, and business
Infrastructure at Mogale City has collapsed. The municipality now deliberately releases thousands of litres of raw sewage into the rivers and residential areas. The sewage pollutes critical water sources such as the Vaal, Crocodile and Bloubankspruit rivers and the Hartbeespoort Dam.

New NERDS paper on COVID genome sequencing over whole Denmark in 2021, co-authored by @…
https://nerds.itu.dk/2024/09/16/new-ne

Series B, Episode 04 - Horizon
AVON: What did it say - decode.
ZEN: It is in Federation code nine. Message reads, "Top priority signal to any Federation pursuit unit, from Kommissar, planet Horizon. Request assistance. Ruler of Horizon unreliable, am disposing of him. Rebel spaceship at grid reference ten by thirteen double-u zed. Request you destroy this spaceship at once. Also inform Federation Central Control of this action. Await confirmation."

Blakes7Bot | Search
Companion site to the Blakes7Bot Twitter, Mastodon, and Bluesky accounts. Automated lines of Blakes 7 dialog. Includes a script search facility.

Classifying Bicycle Infrastructure Using On-Bike Street-Level Images
https://arxiv.org/abs/2410.19194v1

Classifying Bicycle Infrastructure Using On-Bike Street-Level Images
While cycling offers an attractive option for sustainable transportation, many potential cyclists are discouraged from taking up cycling due to the lack of suitable and safe infrastructure. Efficiently mapping cycling infrastructure across entire cities is necessary to advance our understanding of how to provide connected networks of high-quality infrastructure. Therefore we propose a system capable of classifying available cycling infrastructure from on-bike smartphone camera data. The system …

An in-depth review of the AsciiDoc workshop with #SimplexaCode at #CHopen #WorkshopTage 🔖 with lots of links on the design of impactful software documentation

102 #documentation
Notes from a CH Open workshop with SimplexaCode on the art and science of technical writing.

Inversions (2021)
#GenerativeArt #Animation #Circle #Inversion

One thing governments who are too afraid to ban X, even temporarily, should consider, is the robustness of systems that rely on it. It should be possible for things to continue, albeit less efficiently for a short period, without a specific social media platform. With that in mind, it would be prudent, and send an important message to social media owners, to stress test by turning off X for scheduled days and weeks, so that the country asserts democratic independence from foreign billionaires.