Sleep Debt Calculator
Does the same job
all alternatives →- WPweekend project, an attempt at a simple bed time calculator2011 · waketimes.com · ▲38
- IMI'm 15 and made a bedtime calculator with React JavaScript2020 · sleepsources.com · ▲312
- ICInvestment Calculator – A simple retirement calculator2018 · investmentcalculator.io · ▲308
- ITIncome Tax Calculator2015 · incometaxcalculator.net.in · ▲64

- SMSimple monthly passive income calculator2018 · 1000monthly.club · ▲102
More life & fun this month
the category →- TL
Life & fun · 10d ago · louisabraham.github.io

Photosynthesis fires two of your iPhone
Life & fun · 28d ago · photosynthesis.camera
SoloUno▲310Take 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


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
Launched alongside, May 2013
the whole month →- MS
Work · 2013 · 7-min.com
- AW
Work · 2013 · eatthismuch.com
- RB
Life & fun · 2013 · clippingmagic.com
- FH
Life & fun · 2013 · unsplash.com
- LE
Life & fun · 2013 · fleex.tv
- CJ
Life & fun · 2013 · ankane.github.io