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Hacker News by BaselAshraf81 130 points 80 comments

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 tr...

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2

Show HN: Quasicrystals Animation Playground with WebXR

(hypnagogic-quasicrystals.github.io)
Hacker News by r34 28 points 8 comments

Hi! This is my little project introducing quasicrystals animations with some parameters. It uses a custom shader to allow higher resolution. Not all combinations look equally good. For example the "Spectrum" color palet...

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Hacker News by epaga 63 points 31 comments

I posted an early beta of this game a few months ago: - May 2026 (45 comments) and today released the full version. You all gave extremely valuable and helpful feedback back then - thank you so much for that. It led to...

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Hacker News by lajosdeme 83 points 13 comments

Doing research with agents is fun until they blow way past budget, jumble the sources, and don't even give you the best possible answer, just sound confident. And if you want to run some research task on local data - yo...

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Hacker News by carpdiem 102 points 21 comments

Most color palettes collapse if you've got a strong redshift/nightshift color filter actively suppressing green and blue channels. I made one that doesn't. Ember has terminal, chart, heatmap, and UI palettes designed an...

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Hacker News by freakynit 5 points 0 comments

I have been using raindrop.io for years now, and it has worked perfectly for me. Seriously, no issues. But, bookmarks are something that are a bit too personal... they allow profiling you. And I don't want anyone doing...

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Hacker News by adius 100 points 19 comments

LuaCAD models solids in Lua rather than the OpenSCAD language, with operator overloading for CSG (`a + b`, `a - b`, `a * b`). It ships with a CLI and a desktop app, including a preview area and a text editor. I've alway...

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