DocRev – crowd-sourcing document reviews

Life & fun · 10d ago · louisabraham.github.io

Photosynthesis fires two of your iPhone

Life & fun · 28d ago · photosynthesis.camera

Take control of hair pulling, nail biting & skin picking

Life & fun · 28d ago · solouno.io

Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.

Life & fun · 26d ago · everycube.alen.is

The Interactive 3D Encyclopedia

Life & fun · 21d ago · expeditione.fun

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

Music for the brain to improve focus, meditation & sleep

AI · 2015 · brain.fm

Life & fun · 2015 · dn.ht

Life & fun · 2015 · shaunlebron.github.io

Easily build chatbots to do anything, on any platform!

AI · 2015 · motion.ai

Create a database, as easily as a spreadsheet

Dev tools · 2015

Auto adjust your iOS display based on the time of day

Dev tools · 2015