Life & fun · September 3, 2026
A gravity simulator where forces propagate at the speed of light
Real-time 2D gravity sandbox with causal propagation (finite c), GW-strain heatmaps, and a virtual LIGO probe. Numba JIT, CPU-only. - alessandro-pioli/AstroCausal_Engine
A gravity simulator where forces propagate at the speed of light launched on September 3, 2026 with 6 votes, #1,245 of 8,094 launches that month and more than 75% of that year's launches.
Does a similar job
all alternatives →- IBI built a gravity simulator in pure CSS2022 · multiplanetary.website · ▲64
- WIWhat if the speed of light was 5 km/h?Sep 2026 · rivendell.dmitrybrant.com · ▲629
Special relativity simulator in which light crawls along at a human speed, so Lorentz contraction, aberration and Doppler shift happen at walking pace.
- GIGravity – Interactive solar-system simulator, from Newton to EinsteinJun 2026 · qunabu.github.io · ▲217
Just for fun and self education, I've built this over a weekend to teach myself why orbits exist, not just show planets going around. Something that was never clearly explain to me in school. It opens with a guided tour that builds the idea up step by step: two bodies and the equal/opposite force, inertia (the Sun is removed and Earth just drifts straight), then "an orbit is falling and continuously missing," cosmic velocities with a little rocket, Voyager 1 & 2's real gravity assists (the clock runs the actual 1977–1989 dates so the planets orbit into their grand-tour alignment and the…
Gravity WebGL2016 · valentinvichnal.github.io · ▲84A gravity simulator, with updated movement controls
- ASA simple 2D fluid and gravity simulation with WASM and WebGL2024 · aestuans.github.io · ▲137
I really like the look of the famous album art for Unknown Pleasures [1]. It was originally created by Harold Craft at the Arecibo Observatory from the signals of the first discovered radio pulsar [2]. I made a spectrogram that produces a similar look. It runs FFT in Rust and visualizes it with WebGL. [1]: https://en.wikipedia.org/wiki/File:UnknownPleasuresVinyl.jpg [2]: https://en.wikipedia.org/wiki/PSR_B1919%2B21
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Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.
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Launched alongside, September 2026
the whole month →
E-ink bird frame for Raspberry Pi - real-time bird detection by audio, fully local AI, rendered as real, hand-cut 1800s bird illustrations. - arnegiacomo/fugleramme
AI · Sep 2026 · github.com
- WI
Special relativity simulator in which light crawls along at a human speed, so Lorentz contraction, aberration and Doppler shift happen at walking pace.
Life & fun · Sep 2026 · rivendell.dmitrybrant.com
Start coding agents, control sessions, review PRs. Anywhere.
Dev tools · Sep 2026 · kilo.ai
