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OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
518•klaussilveira•9h ago•145 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
852•xnx•14h ago•512 comments

How we made geo joins 400× faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
65•matheusalmeida•1d ago•13 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
169•isitcontent•9h ago•21 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
172•dmpetrov•9h ago•77 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
286•vecti•11h ago•129 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
65•quibono•4d ago•11 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
340•aktau•15h ago•166 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
335•ostacke•15h ago•90 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
425•todsacerdoti•17h ago•223 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
232•eljojo•12h ago•142 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
366•lstoll•15h ago•253 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
37•kmm•4d ago•3 comments

Show HN: ARM64 Android Dev Kit

https://github.com/denuoweb/ARM64-ADK
14•denuoweb•1d ago•1 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
4•videotopia•3d ago•0 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
11•romes•4d ago•1 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
85•SerCe•5h ago•69 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
216•i5heu•12h ago•160 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
17•gmays•4h ago•2 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
36•gfortaine•6h ago•10 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
59•phreda4•8h ago•11 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
161•limoce•3d ago•80 comments

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

https://infisical.com/blog/devops-to-solutions-engineering
124•vmatsiiako•14h ago•51 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
260•surprisetalk•3d ago•35 comments

I now assume that all ads on Apple news are scams

https://kirkville.com/i-now-assume-that-all-ads-on-apple-news-are-scams/
1024•cdrnsf•18h ago•425 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
53•rescrv•16h ago•17 comments

WebView performance significantly slower than PWA

https://issues.chromium.org/issues/40817676
16•denysonique•5h ago•2 comments

I'm going to cure my girlfriend's brain tumor

https://andrewjrod.substack.com/p/im-going-to-cure-my-girlfriends-brain
102•ray__•5h ago•49 comments

Evaluating and mitigating the growing risk of LLM-discovered 0-days

https://red.anthropic.com/2026/zero-days/
44•lebovic•1d ago•13 comments

Show HN: Smooth CLI – Token-efficient browser for AI agents

https://docs.smooth.sh/cli/overview
82•antves•1d ago•59 comments
Open in hackernews

The Code That Revolutionized Orbital Simulation [video]

https://www.youtube.com/watch?v=nCg3aXn5F3M
56•surprisetalk•1mo ago

Comments

pfdietz•1mo ago
https://en.wikipedia.org/wiki/Symplectic_integrator
dzdt•1mo ago
Thanks. I watched a few snippets of the video but I hate video. It did look like it would have been an interesting blog post but no way I am sitting thru that.
01HNNWZ0MV43FF•1mo ago
I wish they had graphs like this article https://en.wikipedia.org/wiki/Numerical_methods_for_ordinary...

I'm vaguely familiar with explicit and implicit Euler from game physics, but I'd rather just see the graphs of the top 10 most popular integrators, with a small description of how they work, then see the equations and try to reconstruct the graphs in my head.

Buford_Jones•1mo ago
Orbital simulation has always been my "Hello World" for any initial coding efforts in new and unfamiliar graphical environments. Certainly not to the precision detailed in the video, but did allow me to grasp the basic of new rendering methods. This explains why my github and temp project directories are filled with solutions named orbs, spheres, gravity, circles, planets, and others.