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

https://openciv3.org/
499•klaussilveira•8h ago•138 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
836•xnx•13h ago•503 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
53•matheusalmeida•1d ago•10 comments

A century of hair samples proves leaded gas ban worked

https://arstechnica.com/science/2026/02/a-century-of-hair-samples-proves-leaded-gas-ban-worked/
110•jnord•4d ago•18 comments

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

https://github.com/pydantic/monty
164•dmpetrov•8h ago•76 comments

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

https://github.com/valdanylchuk/breezydemo
166•isitcontent•8h ago•18 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
59•quibono•4d ago•10 comments

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

https://vecti.com
279•vecti•10h ago•127 comments

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

https://github.com/microsoft/litebox
339•aktau•14h ago•163 comments

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

https://eljojo.github.io/rememory/
222•eljojo•11h ago•139 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
332•ostacke•14h ago•89 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
421•todsacerdoti•16h ago•221 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
34•kmm•4d ago•2 comments

Show HN: ARM64 Android Dev Kit

https://github.com/denuoweb/ARM64-ADK
11•denuoweb•1d ago•0 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
360•lstoll•14h ago•248 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...
15•gmays•3h ago•2 comments

Delimited Continuations vs. Lwt for Threads

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

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

https://github.com/phreda4/r3
58•phreda4•8h ago•9 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
209•i5heu•11h ago•156 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
33•gfortaine•6h ago•8 comments

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

https://infisical.com/blog/devops-to-solutions-engineering
121•vmatsiiako•13h ago•51 comments

Learning from context is harder than we thought

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

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
257•surprisetalk•3d ago•33 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/
1013•cdrnsf•17h ago•422 comments

FORTH? Really!?

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

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

https://andrewjrod.substack.com/p/im-going-to-cure-my-girlfriends-brain
93•ray__•5h ago•43 comments

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

https://red.anthropic.com/2026/zero-days/
44•lebovic•1d ago•12 comments

WebView performance significantly slower than PWA

https://issues.chromium.org/issues/40817676
10•denysonique•5h ago•0 comments

How virtual textures work

https://www.shlom.dev/articles/how-virtual-textures-really-work/
35•betamark•15h ago•29 comments

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

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

Graphics In Flatland – 2D ray tracing [video]

https://www.youtube.com/watch?v=WYTOykSqf2Y
92•evakhoury•3w ago

Comments

jmward01•2w ago
"[download] Got error: HTTP Error 403: Forbidden. Retrying fragment 30 (3/10) ..." Looks like yt-dlp just got nerfed again. Google: We can download all your stuff but you can't download ours....
immibis•2w ago
Did you update yt-dlp?
jmward01•2w ago
yeah. Probably come back in a few days. I really only dl a few things a week (things I give patreon $ to but that don't have patreon links).
littlestymaar•2w ago
> Google: We can download all your stuff but you can't download ours....

“There must be in-groups whom the law protects but does not bind, alongside out-groups whom the law binds but does not protect.”

alhazrod•2w ago
Interesting quote! Turns out that it is from Frank Wilhoit[0] the composer, not Francis M. Wilhoit[1] the political scientist. How odd!

[0]: https://en.wikipedia.org/wiki/Frank_Wilhoit_(composer)

[1]: https://en.wikipedia.org/wiki/Francis_M._Wilhoit#Misattribut...

JoshTriplett•2w ago
Works fine here.
nemof•2w ago
yt-dlp works fine for me. make sure you've updated. they now list the js that is used for solving for youtube downloads as an external dependency, so you might need to install that too. look at yt-dlp github, look for yt-dlp-es
pengaru•2w ago
It's your IP address, you're leeching too much without using the prescribed player. After some time it'll start working again. I bet if you go to the web site it will ask you to log in to prove you're not a bot, if you're not logged in already.
albertgoeswoof•2w ago
Great video! This references the fantastic book Flatland, which helps explain dimensionality in really easy to understand way, and helped me get my head around what a 4th or n level dimension is (and why we it’s so unintuitive for us 3-dimensional beings)
whycome•2w ago
Is that book okay for a 10yo girl?
tylerritchie•2w ago
yes? it's got sexist and classist elements and satirizes victorian culture.

i'd encourage reading it ahead of gifting (and i'd encourage grabbing it from archive.org or something, since it's 141 years old) because not all 10 yearolds are going to receive it the same way

quietbritishjim•2w ago
She might find the film [1] more digestible. I enjoyed it a lot. But obviously if you're specifically after a book that doesn't help.

[1] https://www.flatlandmovie.com/

badosu•2w ago
Folks that like this, might find this interesting, an incredible resource for my then younger mathematical mind: https://www.dimensions-math.org/Dim_E.htm

An exploration of 3d via projections in 2d then 4d via projections in 3d.

yakattak•2w ago
I kind of thought this video was going to be about Flatland the book but it was even better. This is a fantastic and easily digestible explanation of ray tracing.