Life & fun · September 28, 2023
Ray-Ban Meta Smart Glasses
All new smart glasses from Meta and Ray-Ban
What it does
The new glasses feature improved audio and cameras, over 150 different custom frame and lens combinations, and they’re lighter and more comfortable.
Does the same job
all alternatives →
Ray-Ban Meta G2 Blayzer & Scriber OpticsApr 2026 · ▲115Meta's first AI glasses built for prescriptions
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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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