I built a JavaScript-powered flipdisc display
In plain words
A JavaScript-powered flipdisc display lets users create and control animated split-flap style displays through code. Built for developers and hobbyists interested in retro display technology, it runs on the web and enables programmatic control of the classic mechanical flip animations. The project combines nostalgic flipdisc mechanics with modern web development, making it accessible to anyone who wants to build interactive flipdisc projects without physical hardware constraints.
written from the facts on this page · September 2026
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Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.
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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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