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

https://openciv3.org/
597•klaussilveira•11h ago•177 comments

The Waymo World Model

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

What Is Ruliology?

https://writings.stephenwolfram.com/2026/01/what-is-ruliology/
22•helloplanets•4d ago•17 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
97•matheusalmeida•1d ago•23 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

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

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

https://github.com/valdanylchuk/breezydemo
204•isitcontent•11h ago•24 comments

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

https://github.com/pydantic/monty
202•dmpetrov•12h ago•92 comments

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

https://vecti.com
314•vecti•14h ago•137 comments

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

https://github.com/microsoft/litebox
353•aktau•18h ago•178 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
357•ostacke•17h ago•93 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
459•todsacerdoti•19h ago•231 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/
259•eljojo•14h ago•156 comments

Dark Alley Mathematics

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

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
393•lstoll•18h ago•267 comments

PC Floppy Copy Protection: Vault Prolok

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

Was Benoit Mandelbrot a hedgehog or a fox?

https://arxiv.org/abs/2602.01122
7•bikenaga•3d ago•1 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
235•i5heu•14h ago•178 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
4•jesperordrup•1h ago•0 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
47•gfortaine•9h ago•14 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
123•SerCe•7h ago•103 comments

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

https://infisical.com/blog/devops-to-solutions-engineering
136•vmatsiiako•16h ago•60 comments

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

https://github.com/phreda4/r3
68•phreda4•11h ago•12 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
271•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/
1045•cdrnsf•21h ago•431 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...
25•gmays•6h ago•7 comments

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

https://github.com/dmtrKovalenko/zlob
13•neogoose•4h ago•9 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
171•limoce•3d ago•92 comments

FORTH? Really!?

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

Show HN: ARM64 Android Dev Kit

https://github.com/denuoweb/ARM64-ADK
15•denuoweb•1d ago•2 comments
Open in hackernews

How a Pipe Organ Works (2020)

https://www.pipedreams.org/page/how-a-pipe-organ-works
83•dskhatri•9mo ago

Comments

LegitShady•9mo ago
https://www.youtube.com/playlist?list=PLluPQLh1xzlI7EMB5qIxD...

Highly recommend this youtube playlist by Look Mum No Computer, who bought an old church pipe organ, disassembled it and reassembled it at his museum.

And he does in fact end up installing a (smol) computer so he can use it with MIDI, as well as LEDs on each pipe so when a note sounds you can see which pipe makes it.

timthorn•9mo ago
The Museum is small but well worth a visit, especially if you are interested in electronic music or telecoms.
natebc•9mo ago
And here's a related from someone i wish would do a crossover with Sam someday!

Anna Lapwood touring the Royal Albert Hall organ:

https://www.youtube.com/watch?v=zq0s17bzdLI

Bonus related rec if you need a smile in your day. Anna Lapwoord playing that organ with Bonobo:

https://www.youtube.com/watch?v=AdyAF9M3XVw

mmmlinux•9mo ago
Too bad Sam doesn't know what hes doing.
smitty1e•9mo ago
I had always understood that the surrounding cathedral was part of the instrument, too.

Imagine my surprise when we went to hear Robert Plimpton work out in Balboa Park...

https://www.linkedin.com/in/robert-plimpton-0802761b/

https://web.archive.org/web/20141129041425/https://www.sandi...

bombcar•9mo ago
Outdoor pipe organs are really impressive, but a pipe organ tuned for an acoustically matched building is something else.
AStonesThrow•9mo ago
So many Catholics may focus on things like the removal of altar rails, but it would seem that the decay and removal of working pipe organs has been a significantly painful loss for many parishes.

Often these organs were too massive, specialist, and expensive to maintain (or even just to operate them) and that lack often prompted a complete overhaul of a congregation’s repertoire, as guitar-strummers and tambourine-clappers would be called in to fill the gaps.

Even electronic organs could not suffice, as they proved harder to maintain as their unique technologies aged poorly.

Nothing against folk music, but the transition and loss of continuity has really messed with some of us, spiritually.

I am thankful that around these parts, we’ve had some responsible pastors who not only cared about music, but also found the resources to rehabilitate several churches and get their pipe organs updated for the 21st century, with a firm establishment of music ministers who could carry on that legacy for the foreseeable future.

kashunstva•9mo ago
> the surrounding cathedral was part of the instrument

This is absolutely the case. I studied organ during my high school years. The instrument where I took my lessons was a large church and the instrument had an antiphonal section. The time that it takes for the pipe to begin speaking and for the sound to reach the console is enough to upset the ear-brain-hand connection.

To a certain extent this interaction is true with any acoustic instrument. I’m mostly a pianist now and I’d say that so many aspects of technique that are altered by the acoustic qualities of the venue - pedalling, legato, spacing.

madars•9mo ago
Oxford Music Online has a great article that goes into a lot of detail - https://doi.org/10.1093/gmo/9781561592630.article.44010 and fittingly remarks that

>The organ is, together with the clock, the most complex of all mechanical instruments developed before the Industrial Revolution. Among musical instruments its history is the most involved and wide-ranging, and its extant repertory the oldest and largest. Despite its essentially indirect and therefore relatively inflexible production of sound, no other instrument has inspired such avowed respect as the organ, ‘that great triumph of human skill … the most perfect musical instrument’ (Grove), ‘in my eyes and ears … the king of instruments’ (Mozart, letter to his father, 17–18 October 1777).

Stephen Malinowski's famous YouTube channel of animated graphical scores has a great selection of organ pieces: https://www.youtube.com/watch?v=JXaCmhAMnHs&list=PLA20FE13E9...

St. Cecilia, pray for us!

tengwar2•9mo ago
> The organ is, together with the clock, the most complex of all mechanical instruments developed before the Industrial Revolution

Or to put it more strongly: the most complex machines on the planet for roughly 2000 years. The starting point usually acknowledged is Ctesibius's hydraulis, an organ with a simple automatic pump (no calcant or animal labour required) and pressure regulation. That was about 250BC. They were still producing innovations well after the industrial revolution, e.g. pneumatic relays.

ofalkaed•9mo ago
It is nice to know that Pipedreams is still going and even with Michael Barone still hosting after all these years. My earliest memory of music and one of my earliest memories is the opening sequence of Rollerball with Bach's Toccata and Fugue in D Minor, my father was watching it on cable* sometime around 1980 when I was ~3 and it had a major impact. Few years later I heard Toccata and Fugue in D Minor a second time on the drive home from a family event or something, I don't think the actual piece was played but just a few of the opening bars as a demonstration but it was enough to trigger the memory of the opening sequence of Rollerball and I became a weekly listener for the next 20 odd years.

I did not learn that it was Rollerball that I had watched the opening of all those years ago until sometime after the turn of the century when the original started getting heavy replay on late night TV because the remake was coming out soon.

*I suppose cable in this context is rather archaic these days, as is the idea of a "cable ready" TV and cable boxes. Wood grained plastic was pretty much the internet of those day.

https://www.retroist.com/p/jerrold-cable-tv-boxes

dang•9mo ago
Related (loosely):

The story of my home made pipe organ (2000) - https://news.ycombinator.com/item?id=42831969 - Jan 2025 (52 comments)

Paper Pipe Organ (2019) [video] - https://news.ycombinator.com/item?id=39000648 - Jan 2024 (6 comments)

Organ pipe physics - https://news.ycombinator.com/item?id=38853087 - Jan 2024 (66 comments)

OpenPipes: Build your open-source virtual pipe organ system - https://news.ycombinator.com/item?id=36873573 - July 2023 (27 comments)

The organ as a wind instrument - https://news.ycombinator.com/item?id=34309230 - Jan 2023 (105 comments)

Self-Playing Pipe Organ - https://news.ycombinator.com/item?id=18111869 - Oct 2018 (7 comments)

Teeny-Tiny, Handmade Pipe Organ - https://news.ycombinator.com/item?id=13711526 - Feb 2017 (1 comment)

Pipe Organ desk - https://news.ycombinator.com/item?id=10778499 - Dec 2015 (25 comments)

Pneumatic logic board made entirely from wood doubles as desk/organ - https://news.ycombinator.com/item?id=2788069 - July 2011 (4 comments)

The Surprising Physics of Pipe Organs - https://news.ycombinator.com/item?id=803341 - Sept 2009 (1 comment)

bgoated01•9mo ago
My brother just finished building an automatic pipe organ for his Mechanical Engineering senior project. Or maybe you'd call it a street organ since it has no keyboard. It has midi input on some arduino-like device, 3d printed pipes, a hand crank pump to fill the bellows, and a bunch of shift registers, relays, and solenoids (on breadboards at this point) to open the valves for the pipes. It turned out really nice, and was a hit at the project showcase. I was involved in helping him figure out the electronics and the code, though I think he threw out the code I wrote in favor of using ChatGPT. All in all, it's not a technically difficult thing to make, though I have the benefit of his hindsight at this point. Maybe I'll get him to write it up at some point.
kjellsbells•9mo ago
Given this is HN, how can we talk about pipe organs without mentioning Donald Knuth's?

Eight foot pipes. In his house.

https://www-cs-faculty.stanford.edu/~knuth/organ.html

YesBox•9mo ago
Semi related, here's a modern, young artist who composes music for pipe organs that use tunings from the Baroque era. [1]

The music is minimalistic at first ear, but the tension and release caused by the slightly out of tune notes [2] is really pleasant IMO.

[1] https://kalimalone.bandcamp.com/track/all-life-long-for-orga...

[2] Out of tune to equal temperament, which is what nearly all modern music western music uses.

kome•9mo ago
I am surprised to see Kali Malone mentioned here! But yes, I also highly recommend listening to her work, especially if you like ambient or meditative music
YesBox•9mo ago
I am surprised too!

Can you recommend some other similar artists??

globnomulous•9mo ago
Relevant: https://www.linusakesson.net/sixtyforgan/index.php