Archive · August 2026
Pattern Recognition on the Building Site: Teach scikit-learn to Sort Your IFC
Fisher's 1936 discriminant, four lines of scikit-learn, and your own IFC export: a hands-on classifier that triages dirty BIM imports for Swiss studios.
The Metal That Un-Remembers Damage: Shape Memory Materials, Explained
How Nitinol and shape memory alloys separate damage from deformation — the physics of self-centering seismic braces, from Buehler's 1965 patent to Assisi.
Watching thirteen kilometres of Betuwe freight rail settle, one millimetre at a time
University of Twente fused 170 Sentinel-1 radar scenes with national LiDAR to flag the soft-soil Betuwe freight segments subsiding 30 mm before any survey train.
Review of the Week — W32: The week PAZ Kaffi drew the dependency graph
SBB's CHF 280m Iltis award, Copernicus's 24-hour delay, DeepSeek-V4's KV cut and Remise Rosa — the week PAZ Kaffi drew the single point of failure.
A Site Robot's GPS Problem: Coarse-to-Fine Floorplan Localization Hits the Slab
A new arXiv method drops ray-matching for image-conditioned pose diffusion, holding sub-meter indoor localization on S3D and ZInD without lookup tables.
The place of truth in Grasshopper: Sebastian Lieb brings his wood-structures pipeline to BSS XIV
PAZ Academy's BSS Edition XIV opens 1 Sept 2026 with Sebastian Lieb's Archicad–Grasshopper–RFEM timber-structures pipeline. What it teaches and who it's for.
A Fields medallist quit maths for AI safety — the lesson is where the gate sits
Fields medallist Jacob Tsimerman left maths for OpenAI's AI-safety work. The lesson for AEC offices: put the guarantee in the wiring, not in trust.
Closed-Form Calculus on Your Desk: Integrate Symbolically with SymPy
Wolfram's Integrate page shows off closed-form calculus. SymPy does the same in open Python you own — turn a load into a bending moment in four lines.
The Segmented Shell: How You Fake a Curve and Keep the Physics
How segmented shells keep membrane efficiency while deleting the mould — from Candela to BUGA's 376 timber segments to ETH's demountable concrete floors.
Remise Rosa: a CLT body that rose on a Zurich freight yard in five months
Hello Wood's 2,500 m² Remise Rosa stood up on a Zurich freight yard in five months via CNC-prefabricated CLT — and why the real win is the model, not the speed.
