Life & fun · September 13, 2012
We buit this in 4 hours on the local hackathon
Does the same job
all alternatives →- M4My 4-hour project, already profitable2011 · snowday2011.com · ▲323
- HNHacker News Instant (3 hour project)2011 · hninstant.com · ▲91
- EOEventivore - Our Submission to the 36 hour Hacka2thon2011 · eventivore.com · ▲30
- WBWe built a voice to music AI app in 54 hours at a hackathon2012 · blog.beatmaticapp.com · ▲130
- HFhackathon for introverts2012 · hackalone.org · ▲72
- O4Our 4 hour winter break startup2011 · zonkbox.wordpress.com · ▲8
More life & fun this month
the category →- TL
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Photosynthesis fires two of your iPhone
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Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.
Life & fun · 26d ago · everycube.alen.is


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
Launched alongside, September 2012
the whole month →- WG
Life & fun · 2012 · aboutmybrowser.com
- MGMy Github résumé▲301
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- EA
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Work · 2012 · mixest.com
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Life & fun · 2012 · fullstackoptimization.com