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

https://openciv3.org/
624•klaussilveira•12h ago•182 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
926•xnx•18h ago•548 comments

What Is Ruliology?

https://writings.stephenwolfram.com/2026/01/what-is-ruliology/
32•helloplanets•4d ago•24 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
109•matheusalmeida•1d ago•27 comments

Jeffrey Snover: "Welcome to the Room"

https://www.jsnover.com/blog/2026/02/01/welcome-to-the-room/
9•kaonwarb•3d ago•7 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
40•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
219•isitcontent•13h ago•25 comments

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

https://github.com/pydantic/monty
210•dmpetrov•13h ago•103 comments

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

https://vecti.com
322•vecti•15h ago•143 comments

Sheldon Brown's Bicycle Technical Info

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

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

https://github.com/microsoft/litebox
358•aktau•19h ago•181 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
477•todsacerdoti•20h ago•232 comments

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

https://eljojo.github.io/rememory/
272•eljojo•15h ago•160 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
402•lstoll•19h ago•271 comments

Dark Alley Mathematics

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

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
14•jesperordrup•2h ago•6 comments

Delimited Continuations vs. Lwt for Threads

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

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
56•kmm•5d ago•3 comments

Start all of your commands with a comma

https://rhodesmill.org/brandon/2009/commands-with-comma/
3•theblazehen•2d ago•0 comments

Was Benoit Mandelbrot a hedgehog or a fox?

https://arxiv.org/abs/2602.01122
12•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/
244•i5heu•15h ago•188 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
52•gfortaine•10h ago•21 comments

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

https://infisical.com/blog/devops-to-solutions-engineering
140•vmatsiiako•17h ago•63 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
280•surprisetalk•3d ago•37 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/
1058•cdrnsf•22h ago•433 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
132•SerCe•8h ago•117 comments

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

https://github.com/phreda4/r3
70•phreda4•12h ago•14 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•8h ago•11 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
176•limoce•3d ago•96 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
63•rescrv•20h ago•22 comments
Open in hackernews

Wind Chime Length Calculator (2022)

https://www.snyderfamily.com/chimecalcs/
54•hyperific•2w ago

Comments

brudgers•2w ago
If I was tuning wind chimes, I would probably use Just intonation, not equal temperament because a wind chime play in different keys.

Exceptional circumstances excepted of course.

Ylpertnodi•1w ago
> Exceptional circumstances excepted of course.

ECEOC?

I have used 'BOCTAOE' (but of course there are obvious exceptions) in the past, but, guilt by association, kinda stopped all that.

brudgers•1w ago
I write such things because the internet gonna' internet and I'm feeling too old for that shit.
JKCalhoun•1w ago
Had to look up "Solfeggio Healing Frequencies".

There are plenty of 9-hour long YouTube videos (example [1]) cycling through the frequencies. Apparently to be played while you sleep.

[1] https://youtu.be/iXL_MupS6NQ

tecleandor•1w ago
Nice, although a metric version would be helpful :D
SpaceNoodled•1w ago
Divide inches by 25.4 for millimeters
dubcanada•1w ago
Times inches by 25.4 for mm, there is 25.4mm in every inch.
SpaceNoodled•1w ago
Derp
linuxguy2•1w ago
https://leehite.org/Chimes.htm is the best source of information I've found on chime design and length. They go into great length about the lower octaves and how you can hear them (or not).
scrumper•1w ago
The linked site acknowledges Lee Hite actually. I suspect it's not a crowded field :)

The suspension point calc is particularly neat, I suppose putting it at a null node in the tube vibration so it doesn't damp it.

dylan604•1w ago
The clanky sounds of cheap bamboo or the high pitched screeching of tiny metal chimes are not pleasant. I have two sets of tuned chimes in my garden that are 1" diameter. They both have 6 chimes that are tuned as a set, but they are also tuned when heard together. One set has longer chimes than the other, so when heard together the chords are much richer.

I know it sounds bougie as hell, but it's really quite a nice effect.

aaarrm•1w ago
Where did you get them if you don't mind me asking

Also do you know the material of the metals? I wonder if it'd be worth it to have them in different metals for different timbres. Like two different instruments

dylan604•1w ago
https://chimes.com/collections/deep-toned

You can play multiple chimes at the same time to get a feel for how they pair

SoftTalker•1w ago
Do they stay (relatively) in tune with temperature changes?
dylan604•1w ago
I'm in Texas, so we have warm, hot, hotter. I've never noticed a difference from temp changes. Whether it has an effect or not, I haven't noticed.
phkahler•1w ago
That seems like an argument for using the same material. Different metals will expand more or less with temperature variations. If they all chance a fixed percentage the tonal ratios should be preserved.
rossjudson•1w ago
Tuning matters! After my daughter complained about how the toms on her new drums sounded like crap, I bought a Tune-Bot (drum tuner), asked Gemini to help me make her toms sound like Dirty Loops, and got busy.

A few hours later, she pronounced them to be "not bad". Win! I wasn't going to get higher praise out of a teenager anyway.

bloggie•1w ago
I don't see the unit shown anywhere, is the calculator unit-agnostic?