Dns.toys
In plain words
DNS.toys is a playful tool that lets users perform DNS lookups and network queries through an unusual interface. Launched in 2022, it makes exploring DNS records and network information accessible and entertaining. The service is designed for anyone curious about how domain names resolve and network data works, offering a fun alternative to traditional command-line DNS tools. It appeals to both technical users wanting a lighter approach and casual users interested in learning how internet infrastructure operates.
written from the facts on this page · September 2026
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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:…
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