Life & fun · September 1, 2026
Datestone
Claim a moment in history on an interactive globe
What it does
An interactive globe where every point is a real historical event. Browse events by era, place and theme, then permanently claim or gift one: your name and a short note recorded next to that moment, plus a certificate. One holder per event. A symbolic keepsake, or an unusual gift.
An interactive globe of human history. Every point is a real event you can permanently claim - a symbolic dedication with your name and a note, recorded next to that moment forever.
Does the same job
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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 · 26d ago · baselashraf81.github.io
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