Life & fun · December 17, 2014
My first startup, making premium long distance cyclewear
Does the same job
all alternatives →- MFMy First Product for Founders and Startup Teams2015 · basetemplates.com · ▲23
- IMI'm a single founder. Please review my bootstrapped startup2013 · distelli.com · ▲158
- MWMy weekend project, Startup Tees2011 · zach-johnston.com · ▲58
- IBI built a thing2012 · boxcarsurgery.com · ▲242
- MSMy startup's first product - Trello for Sales2013 · clinchpad.com · ▲17
- NMNationBuilder, my startup just launched2011 · nationbuilder.com · ▲109
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 · 27d ago · baselashraf81.github.io