UberNeutral
Offset carbon emissions for every Uber you’ve taken
What it does
We want Uber to go carbon neutral, but until then we can help with that! UberNeutral sorts through all your Uber receipts to view total miles traveled, tonnes of CO2 to offset, total spent, total rides, and percentage of rides are UberPools.
Does the same job
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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, March 2020
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Life & fun · 2020 · fraidyc.at
