purME
A gas mask you can wear everyday
What it does
purME is an all-new type of mask. It is crystal-clear, modular, lightweight and comfortable. By wearing it, you are protected against all sorts of harmful particles such as PM2.5 and allergen, both as airborne or droplets.
Does the same job
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Life & fun · 10d ago · louisabraham.github.io
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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, August 2020
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Life & fun · 2020 · storycreatorapp.com
