Cosmic Physics Calculator
simple best
Cosmic Physics Calculator launched on May 18, 2025 with 12 votes, #1,538 of 7,905 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
The Cosmic Physics Calculator is a web tool offering over 40 physics calculations, including Hubble's Law, gravitational force, escape velocity, relativistic effects, and more. It supports unit inputs and provides results for various cosmic phenomena.
Does a similar job
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osmic-Physics-Calculator-Jun 2026 · github.com · ▲3an advanced, terminal-based computational suite engineered
Physics-CalculatorJun 2026 · github.com · ▲3a lightweight, zero-dependency computational utility engineR
- IBI built a space travel calculator using Vanilla JavaScriptJan 2026 · cosmic-odometer.vercel.app · ▲54
I built this because measuring my age in years felt boring—I wanted to see the kilometers. The first version only used Earth's orbital speed (~30km/s), but the number moved too slowly. To get the "existential dread" feeling, I switched to using the Milky Way's velocity relative to the CMB (~600km/s). The math takes some liberties (using scalar sum instead of vector) to make the speed feel "fast," but it gets the point across. Under the hood, it's a single HTML file with zero dependencies. No React, no build step. The main challenge was the canvas starfield—I had to pre-allocate the…
Deriving Hubble's constant from fundamental constants2021 · colab.research.google.com · ▲62
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