Give 7B people an instant physical address
In plain words
What3words is a system that assigns a unique three-word phrase to every 3-meter square on Earth, creating a simple way to identify precise physical locations. It's useful for anyone needing to communicate an exact address, including delivery services, emergency responders, and travelers in areas without formal street addresses. The service converts geographic coordinates into memorable word combinations, making location sharing more accessible than traditional latitude-longitude references.
written from the facts on this page · September 2026
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Life & fun · 10d ago · louisabraham.github.io

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.
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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 · 27d ago · baselashraf81.github.io
Launched alongside, August 2016
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Write perfect emails with Artificial Intelligence
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