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

https://openciv3.org/
604•klaussilveira•11h ago•180 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
912•xnx•17h ago•545 comments

What Is Ruliology?

https://writings.stephenwolfram.com/2026/01/what-is-ruliology/
28•helloplanets•4d ago•21 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
100•matheusalmeida•1d ago•24 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
29•videotopia•4d ago•1 comments

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

https://github.com/valdanylchuk/breezydemo
207•isitcontent•12h ago•24 comments

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

https://github.com/pydantic/monty
206•dmpetrov•12h ago•98 comments

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

https://vecti.com
315•vecti•14h ago•138 comments

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

https://github.com/microsoft/litebox
354•aktau•18h ago•180 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
360•ostacke•18h ago•94 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
465•todsacerdoti•19h ago•232 comments

Jeffrey Snover: "Welcome to the Room"

https://www.jsnover.com/blog/2026/02/01/welcome-to-the-room/
4•kaonwarb•3d ago•1 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
24•romes•4d ago•3 comments

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

https://eljojo.github.io/rememory/
262•eljojo•14h ago•156 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
398•lstoll•18h ago•271 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
80•quibono•4d ago•20 comments

PC Floppy Copy Protection: Vault Prolok

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

Was Benoit Mandelbrot a hedgehog or a fox?

https://arxiv.org/abs/2602.01122
8•bikenaga•3d ago•2 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
238•i5heu•14h ago•181 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
49•gfortaine•9h ago•15 comments

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

https://infisical.com/blog/devops-to-solutions-engineering
138•vmatsiiako•17h ago•60 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
273•surprisetalk•3d ago•37 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
126•SerCe•8h ago•107 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...
28•gmays•7h ago•9 comments

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

https://github.com/phreda4/r3
68•phreda4•11h ago•13 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
7•jesperordrup•2h ago•1 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/
1051•cdrnsf•21h ago•432 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
61•rescrv•19h ago•22 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
171•limoce•3d ago•93 comments

Zlob.h 100% POSIX and glibc compatible globbing lib that is faste and better

https://github.com/dmtrKovalenko/zlob
15•neogoose•4h ago•9 comments
Open in hackernews

Geoutil.com – Measure distances, areas, and convert geo data in the browser

https://geoutil.com
130•FreeGuessr•3mo ago

Comments

FreeGuessr•3mo ago
I built GeoUtil.com to provide a free, browser-based toolkit for geographic data analysis.

It offers: - Interactive Map Tools: Measure distances and areas directly on the map. - Data Format Converters: Convert between TopoJSON and GeoJSON formats seamlessly. - Coordinate Utilities: Perform conversions and other coordinate-based operations.

No sign-up required, and all tools run client-side for privacy and speed.

Built with open standards and designed for developers, educators, and anyone interested in geographic data.

Feedback and suggestions are welcome!

croisillon•3mo ago
you should have made it a Show HN, thanks for the discovery and for paintmymap!
eitau_1•3mo ago
à propos the distance tool, please let the user:

- type coordinate pairs by hand

- copy coordinates entered by clicking

otherwise, it's a great tool!

FreeGuessr•3mo ago
Thank you for the suggestion! I will add it.
elsjaako•3mo ago
Some coordinate conversions need a date (as the plates shift over time). Are you planning to add that?
korkoros•3mo ago
I think adding something like (or awareness of datum transformations generally) would make the tool harder to use for its intended audience. If you need the level of precision where tectonic plate movement matters, then you need professional level tools.
FreeGuessr•3mo ago
Exactly unless I am not aware how much they move and it's significant number
elsjaako•3mo ago
The worst distances you can expect are around 1.5m (comparing australia in 2001 when gps accuracy was improved to now). But that number can be hard to figure out if you don't have a tool that allows you to set the time of conversion :)
bouk•3mo ago
Could you how a decimal point in the distance measuring tool? I want to measure distances in my backyard from the satellite photo and the rounded number makes it hard to be accurate
FreeGuessr•3mo ago
Good idea, I will add it! I did that before for Area tool but it's missing in distance tool. Thank you for the feedback!
XnoiVeX•3mo ago
GPX file support would be a great addition! Thank you.
FreeGuessr•3mo ago
Adding to TODO list. Thank you for the suggestion
notachatbot123•3mo ago
Is it AI coded (aka derivative of illegally slurped-up third-party code)?
admaiora•3mo ago
Has a very strong AI code smell. Still it seems to be a decent turf.js wrapper for GIS professionals who don't have too much JS experience. Most should be able to use CLI tools at least for all of this.
czbond•3mo ago
Thanks for mentioning turf. My Geo experience is generally in Python and the visualization for end users is always difficult.
stocksinsmocks•3mo ago
I would expect GIS professionals to use ESRI or QGIS. This is an interesting showcase. It seems a little too simple given the variety of options for geographic projection. I’m not quite sure what the value proposition is, but it’s interesting.
FreeGuessr•3mo ago
The entire site is a result of me building different tools for geography guessing game, GuessWhereYouAre.com. At first, I needed them for myself (parsing JSONs, working a lot with Leaflet maps and Turf). Then I added some of them to the guide page in the game, and later I thought — why not create a dedicated site, polish the experience, and make them available as simple geography tools for people like me?

I’m not sure how useful they might be for professionals who use ESRI or QGIS, but I know I needed tools like that for the game’s development and couldn’t find anything easy to use and simple — at least not all in one place.

So technically, this site is a result of another project.

sebosp•3mo ago
I made something like this around 10 years ago to show wireless frequency coverage, luckily the country I was living in is small enough and close to the equator, I didn't support the curvature of the earth so I can't start to imagine how difficult it must have been to visualize it in the browser https://sourceforge.net/projects/waire/ in my case the earth was kinda flat lol, it was fun parsing the map data available back then and playing with SVGs, back then the rendering engine from Opera browser was unmatched
bluber84•3mo ago
What are your future plans? Will you open source the code? Will deploy a library that everybody could implement it in their apps…etc??
cwmma•3mo ago
If you read the about page it lists the open source tools it used to make it, primarily turf.js so a library for others to do it already exists.
FreeGuessr•3mo ago
Exactly. I didn't think about open-sourcing but it's interesting idea, allow others to add more e.g. file formats to convert etc.. code would be need to be cleaned up more thought :D
kattagarian•3mo ago
This is really cool! I was doing some research last year on OpenStreetMap and wishing that there was tools like distance measurement there by default. Thanks for building and sharing this!
Aachen•3mo ago
I've been using map.meurisse.org for probably >10 years now, if distance measurement is all you need!

I also really like the scroll behavior there, no waiting for the previous zoom level to animate before it lets you zoom to e.g. city level

maelito•3mo ago
Also check https://terradraw.water-gis.com
jdc0589•3mo ago
im consistently surprised there aren't more tools like this. I also started playing with one earlier this year, and was pretty shocked how easy it is to get going with Leaflet as the backbone