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France's homegrown open source online office suite

https://github.com/suitenumerique
35•nar001•1h ago•18 comments

Start all of your commands with a comma (2009)

https://rhodesmill.org/brandon/2009/commands-with-comma/
315•theblazehen•2d ago•105 comments

Hoot: Scheme on WebAssembly

https://www.spritely.institute/hoot/
43•AlexeyBrin•2h ago•8 comments

Reinforcement Learning from Human Feedback

https://arxiv.org/abs/2504.12501
23•onurkanbkrc•1h ago•1 comments

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

https://openciv3.org/
722•klaussilveira•16h ago•224 comments

Software Engineering Is Back

https://blog.alaindichiappari.dev/p/software-engineering-is-back
44•alainrk•1h ago•40 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
984•xnx•22h ago•562 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
107•jesperordrup•6h ago•38 comments

Ga68, a GNU Algol 68 Compiler

https://fosdem.org/2026/schedule/event/PEXRTN-ga68-intro/
22•matt_d•3d ago•4 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
79•videotopia•4d ago•12 comments

Making geo joins faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
142•matheusalmeida•2d ago•37 comments

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

https://github.com/valdanylchuk/breezydemo
244•isitcontent•17h ago•27 comments

Cross-Region MSK Replication: K2K vs. MirrorMaker2

https://medium.com/lensesio/cross-region-msk-replication-a-comprehensive-performance-comparison-o...
5•andmarios•4d ago•1 comments

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

https://github.com/pydantic/monty
249•dmpetrov•17h ago•129 comments

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

https://vecti.com
346•vecti•19h ago•153 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
513•todsacerdoti•1d ago•249 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
397•ostacke•22h ago•102 comments

Show HN: Kappal – CLI to Run Docker Compose YML on Kubernetes for Local Dev

https://github.com/sandys/kappal
3•sandGorgon•2d ago•1 comments

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

https://eljojo.github.io/rememory/
312•eljojo•19h ago•193 comments

What Is Ruliology?

https://writings.stephenwolfram.com/2026/01/what-is-ruliology/
48•helloplanets•4d ago•50 comments

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

https://github.com/microsoft/litebox
363•aktau•23h ago•189 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
442•lstoll•23h ago•291 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
78•kmm•5d ago•11 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
98•quibono•4d ago•24 comments

Was Benoit Mandelbrot a hedgehog or a fox?

https://arxiv.org/abs/2602.01122
26•bikenaga•3d ago•14 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
281•i5heu•19h ago•231 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...
48•gmays•11h ago•19 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/
1093•cdrnsf•1d ago•474 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
312•surprisetalk•3d ago•45 comments

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

https://infisical.com/blog/devops-to-solutions-engineering
160•vmatsiiako•21h ago•73 comments
Open in hackernews

Concrete Shipbuilding – Argentina

https://thecretefleet.com/blog/f/concrete-shipbuilding-–-argentina
69•surprisetalk•2mo ago

Comments

Y_Y•2mo ago
See also: https://en.wikipedia.org/wiki/Pykrete - an alloy of the two greatest structural materials of all time, ice and sawdust!

It turns out that if you don't need your ship to go fast, all you need to do is have a structure that can produce enough displacement to be bouyant and stable. You could carve a ship out of marble if you wanted.

dnemmers•2mo ago
And the British attempt at a floating ice carrier:

https://en.wikipedia.org/wiki/Project_Habakkuk

PaulDavisThe1st•2mo ago
Front page material for HN if ever I saw it ...
3eb7988a1663•2mo ago
There was a MythBusters episode about this. The team had a pretty tough time making a working craft out of it.

https://mythresults.com/alaska-special-2

mrgriscom•2mo ago
There's a concrete ship wrecked just offshore of Cape May Point in NJ. It has been deteriorating for many years and soon nothing will remain above the waterline.
gehwartzen•2mo ago
At the southern tip of Virginia’s Eastern Shore there are 9 concrete ships, left over from WWII, that were deliberately sunk in a large arc to form a break-water.

It’s at a state park called Kiptopeke. You can rent kayaks and paddle out to see them up close.

https://www.atlasobscura.com/places/kiptopeke-s-concrete-fle...

ballpug•2mo ago
The first apotropaic gorgon was discovered at Gorham’s Cave in 2021 at the Gibraltar excavation.

The second apotropaic gorgon was Joyce's stream of consciousness, evoking images of anti-Catholic gorgons.

Paglia, Camille SS. 49 The Birth of the Western Eye

[1]: https://archive.org/stream/263791532sexualpersonaeartanddeca...

WJW•2mo ago
While fascinating, apotropaions are not that relevant to shipbuilding: the ships float by themselves and do not generally require supernatural protection, against Catholics or otherwise.
nickt•2mo ago
I grew up in South Hylton where the Cretehawser was basically dumped near Claxheugh Rock (good luck pronouncing that if you’re not a Mackem!) Proper fun 70’s and 80’s adventure to be had getting on board at low tide. Can’t imagine the authorities being happy with kids doing this today!

It had lots of stories associated with it and it was a strange thing to see just sitting there in a shipbuilding town. Happy to see it get a mention on the site [1] and there’s an article with better photos here [2].

[1] https://thecretefleet.com/wwi-uk

[2] https://fabulousnorth.com/cretehawser-wreck/

Xiol•2mo ago
Similarly, there are also abandoned concrete barges in the Manchester ship canal: https://youtu.be/ExKPh9mszFE
dfawcus•2mo ago
There is one at Seaton Sluice, now (almost?) completely buried by sand.

https://www.flickr.com/photos/36891793@N08/8033301173/

stavros•2mo ago
> I grew up in South Hylton where the Cretehawser was basically dumped near Claxheugh Rock (good luck pronouncing that if you’re not a Mackem!)

What?

keithjl•2mo ago
Still alive and well in Civil Engineering departments across North America. Their equivalent to Formula Student racing teams in Mechanical Engineering.

https://www.asce.org/communities/student-members/conferences...

max51•2mo ago
I participated in that competition a decade ago. The best teams had a hull that was less than half an inch thick and it didn't leak. We put glass fibers and iirc latex in the concrete mix.
pksebben•2mo ago
On the about page

> I tried to correct the nonsense written on the appalling Wikipedia page 'Concrete Ship', only to find myself 'Indefinitely Blocked' from updating Wikipedia. Their grounds were that by citing referenceable facts from this website, I was 'self-promoting' apparently. Self promoting history ? History that has been meticulously researched and is completely free to access ? I then had the audacity to argue with one of the tinpot dictators that run Wikipedia such that I was banned from 'Talk' as well. Closed minds, fake history. This is only important because when you research anything, Wikipedia comes out top. The text then gets repeated ad nauseam. That's the problem...the nonsense on Wikipedia is extrapolated and propagated many times over. For everyone that reads this, a hundred will read Wikipedia and attach what is written to their photo or video. This fact alone means that there is a responsibility on Wikipedia - one that they take extremely lightly - to ensure that statements have adequate and reputable citations. Wikipedia is not a source, Wikipedia is never a source

Pretty strong sentiments - anyone else have this sort of experience? Bit of a bunker buster if the assertions within hold weight...

edit: found the talk page referenced [0]. It's popcorn-worthy at least.

0 - https://en.wikipedia.org/wiki/Talk:Concrete_ship#Nonsense_hi...

TZubiri•2mo ago
Looks like a standard newcomer to wikipedia making lots of wikipedia mistakes, learning what a source is, etc...

The dude wanted to cite himself, cmon

iammattmurphy•2mo ago
I’m immediately reminded of John Siracusa’s rant about Wikipedia on his old Hypercritical podcast. This is a lengthy rebuttal from (presumably) a Wikipedia lover that includes a link and timestamp to the original podcast segment [0]

I agree, verifiability makes sense, and truth can’t really be claimed without verification, and so it’s a confusing argument to say: truth should be above verifiability; but I must admit: I find it very strange that some people have information about them on their Wikipedia pages that they’re not able to correct despite _being the person_ because one can only cite a source.

The problem of circular citations exists as well, where an article is cited which itself only cites another article, and it might loop back on itself.

0 - https://www.thewikipedian.net/p/verifiability-truth-john-sir...

pksebben•2mo ago
People not being allowed to edit their own page (and by extension, anyone that comes without verifiable info because they could be agents of said person) is an unfortunate need. I refer you to the oft-sockpuppeted page of former airline exec Frank Lorenzo [0]

0 - https://en.wikipedia.org/wiki/Talk:Frank_Lorenzo

bfkwlfkjf•2mo ago
You can make a ship of any material, provided the ship is large enough. That's because the amount of material grows quadratically with size whereas the boyance force grows cubic with size.
shallichange•2mo ago
Don Alberto is used as retainer wall of one of the multiple rowing clubs in the Tigre area. Used to paddle by it and think it was a wall or something build as a pier