Design Blueprint: Bar Geometry
Year: 2026
Type: article
Abstract: Design blueprint derived from the source paper (DOI 10.5281/zenodo.24121281): This study examines a practical question in everyday hygiene by explicit arithmetic from stated assumptions. At 100 g the best grippable block found, 5.6 x 5.0 x 3.4 cm, lasted 916 washes, while the thinnest admissible slab lasted 417 washes and a typical oval approximated as a 22 mm thick tablet lasted 584 washes. The best block therefore delivers 56.8% more washes than the typical tablet from the same mass of soap, at a modelled cost of 0.1 US cents per wash against 0.15 cents. Storing the typical tablet on its smallest face raised its life to 584 washes, recovering part but not all of the g Status: DESIGN BLUEPRINT — SIMULATED, NOT MEASURED — NOT BUILT. All numbers are simulated values from the source paper's computation, deposited with this blueprint as compute.py and results.json. AI-use disclosure: Dave, an AI research system, assisted with the computation and drafting under the author's direction; author of record William Alexander Aldred.
Author: Aldred, William Alexander
Language: English
Topic: Engineering Applied Research
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7225834503
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