Life & fun · February 23, 2018
Hacker News Classics
In plain words
Hacker News Classics is a web tool that curates notable posts from Hacker News archives. Launched in 2018, it helps users discover significant discussions and articles that shaped conversations on the platform. The tool is designed for anyone interested in exploring influential tech industry commentary, programming debates, and startup insights from Hacker News's history. It serves as a browsable alternative to searching through years of accumulated posts.
written from the facts on this page · September 2026
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Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…
Life & fun · 26d ago · baselashraf81.github.io
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