Tootfinder

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 …

Oxfam: Carbon inequality kills https://policy-practice.oxfam.org/resources/carbon-inequality-kills-why-curbing-the-excessive-emissions-of-an-elite-few-can-621656/

Finally finished building this prototyping station, for designing synthesizer circuits from scratch. Super excited to start using it! #diysynth #electronics

EDU DIY Labor
Get started in circuit design with MKI x ES Labor. Developed in collaboration with Dr. Shalom D. Ruben teaching professor for engineering at the University of Colorado Labor is a fully-featured circuit design playground and a powerful electronics learning tool all in one. Created with the aim of se…

"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 …