nowfound

Life & fun · May 19, 2025

SiderealLab

Find out how fast you are spinning from your latitude

Visit site ↗Alternativestop 22% of May 2025

What it does

SiderealLab helps you measure Earth’s rotation speed based on your location and observation time. Built for astronomy education, it includes sidereal time input, visualizations, and exportable reports.

Does the same job

all alternatives →
  • ThereDec 2025 · ▲129

    🪐 Your cosmic compass through the galaxy

  • Clockwise2024 · ▲202

    Stay in sync across time zones

  • Cosmic-Watch2020 · ▲73

    The World’s first 3D astronomical clock & stunning skyguide

  • Spacetime 2.02018 · ▲208

    Work hour and time zone management for distributed teams.

  • EarthGuessr2025 · ▲192

    Geoguessr, but it's satellite imagery!

  • Spacetime2016 · ▲240

    Help your distributed team coordinate across time zones 🌎

More life & fun this month

the category →
  • TL
    The load-bearing vocabulary of Claude▲703

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

  • iPhone app takes simultaneous images from 2 lenses, fuses into 1 photo▲329

    Photosynthesis fires two of your iPhone

    Life & fun · 28d ago · photosynthesis.camera

  • SoloUno▲310

    Take control of hair pulling, nail biting & skin picking

    Life & fun · 28d ago · solouno.io

  • Scroll through all 43252003274489856000 Rubik's Cube states▲295

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

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

  • Expeditione▲265

    The Interactive 3D Encyclopedia

    Life & fun · 21d ago · expeditione.fun

  • Eigendrum - Draw any shape and hear what it sounds like as a drum▲243

    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 2025

the whole month →