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Start all of your commands with a comma (2009)

https://rhodesmill.org/brandon/2009/commands-with-comma/
289•theblazehen•2d ago•95 comments

Software Engineering Is Back

https://blog.alaindichiappari.dev/p/software-engineering-is-back
20•alainrk•1h ago•11 comments

Hoot: Scheme on WebAssembly

https://www.spritely.institute/hoot/
34•AlexeyBrin•1h ago•5 comments

Reinforcement Learning from Human Feedback

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

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

https://openciv3.org/
717•klaussilveira•16h ago•218 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
978•xnx•21h ago•562 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
94•jesperordrup•6h ago•35 comments

France's homegrown open source online office suite

https://github.com/suitenumerique
4•nar001•35m ago•2 comments

Making geo joins faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
138•matheusalmeida•2d ago•36 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
74•videotopia•4d ago•11 comments

Ga68, a GNU Algol 68 Compiler

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

What Is Ruliology?

https://writings.stephenwolfram.com/2026/01/what-is-ruliology/
46•helloplanets•4d ago•46 comments

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

https://github.com/valdanylchuk/breezydemo
242•isitcontent•16h ago•27 comments

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

https://github.com/pydantic/monty
242•dmpetrov•16h ago•128 comments

Cross-Region MSK Replication: K2K vs. MirrorMaker2

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

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

https://vecti.com
344•vecti•18h ago•153 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
510•todsacerdoti•1d ago•248 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
393•ostacke•22h ago•101 comments

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

https://eljojo.github.io/rememory/
309•eljojo•19h ago•192 comments

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

https://github.com/microsoft/litebox
361•aktau•22h ago•187 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
437•lstoll•22h ago•286 comments

The AI boom is causing shortages everywhere else

https://www.washingtonpost.com/technology/2026/02/07/ai-spending-economy-shortages/
32•1vuio0pswjnm7•2h ago•31 comments

PC Floppy Copy Protection: Vault Prolok

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

Was Benoit Mandelbrot a hedgehog or a fox?

https://arxiv.org/abs/2602.01122
26•bikenaga•3d ago•13 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
98•quibono•4d ago•22 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
278•i5heu•19h ago•227 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...
43•gmays•11h ago•14 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/
1088•cdrnsf•1d ago•469 comments

Understanding Neural Network, Visually

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

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
36•romes•4d ago•3 comments
Open in hackernews

Nuclear Reactor SIM by PeteTimesSix

https://petetimessix.itch.io/nuclear-reactors
58•ofrzeta•6mo ago

Comments

HelloUsername•6mo ago
Not great, not terrible
maxbaines•6mo ago
Reminds me of http://www.gamtech.com/oakflat.aspx loved blowing triggering SCRAM as a kid
_n_b_•6mo ago
As a nuclear engineer, it's hard to use these kinds of intro tools without shouting things at your monitor. For this, it was the omission of xenon when discussing simulating reactor transients.

I get that it's meant to be overly simplified, and it's a neat idea that is probably helpful for communicating some key concepts.

mnw21cam•6mo ago
FWIW, Xenon was discussed, but it didn't go into enough detail about why Xenon matters and how it can create transients.
skeezyboy•6mo ago
i thought it went in to sufficient depth
ofrzeta•6mo ago
then give us better tools! :) Most of the sims require (at least?) registration with the IAEA: https://www.iaea.org/topics/nuclear-power-reactors/nuclear-r... (I want that Micro-Physics Nuclear Reactor Simulator)

Then there's this https://dalton-nrs.manchester.ac.uk/ but it's down for "maintenance" (a web site - can you imagine?!)

I found this interesting https://www.youtube.com/watch?v=59hVaIjxMIM but people say it does no longer work on recent Windows version. Also I don't like to install random binaries from Mega or similar.

In the end a realistic reactor simulation would probably to complicated for the layman, anyway.

tiberiusteng•6mo ago
try Nucleares (on Steam), it's a heavily gamified one but does cover various important aspects, including Xenon poisoning. You can find some play videos on YouTube.
ethan_smith•6mo ago
Xenon-135's huge neutron absorption cross-section and its buildup/decay dynamics create the "xenon poisoning" effect that makes power changes tricky and can even prevent reactor restart after shutdown - a critical aspect of real reactor operation.
bob1029•6mo ago
> This webpage was reloaded because it was using significant memory

I like how my browser melts down before the reactor can.

foobarbecue•6mo ago
Fun, and I learned something!

However, it crashed after a few mins with an alert popup saying "WebGL context lost, please reload the page"

evanjrowley•6mo ago
There's also PCTRAN from Micro-simulation Technology: http://www.microsimtech.com/pctran/

You must provide an email adderss to download their simulators.

I haven't tried PCTRAN on Windows 11, but they definitley work on Windows 7 through 10.

mikerg87•6mo ago
I had a lot of fun playing this as a kid:

https://en.wikipedia.org/wiki/Scram_(video_game)