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

https://openciv3.org/
612•klaussilveira•12h ago•180 comments

The Waymo World Model

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

What Is Ruliology?

https://writings.stephenwolfram.com/2026/01/what-is-ruliology/
29•helloplanets•4d ago•22 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
102•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/
36•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
212•isitcontent•12h ago•25 comments

Jeffrey Snover: "Welcome to the Room"

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

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

https://github.com/pydantic/monty
206•dmpetrov•12h ago•101 comments

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

https://vecti.com
316•vecti•14h ago•140 comments

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

https://github.com/microsoft/litebox
355•aktau•18h ago•181 comments

Sheldon Brown's Bicycle Technical Info

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

Hackers (1995) Animated Experience

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

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

https://eljojo.github.io/rememory/
267•eljojo•15h ago•157 comments

An Update on Heroku

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

Delimited Continuations vs. Lwt for Threads

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

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
82•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
9•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/
242•i5heu•15h ago•183 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
51•gfortaine•10h ago•16 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/
275•surprisetalk•3d ago•37 comments

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

https://github.com/phreda4/r3
68•phreda4•11h ago•13 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/
1052•cdrnsf•21h ago•433 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
127•SerCe•8h ago•111 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•10 comments

Learning from context is harder than we thought

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

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
7•jesperordrup•2h ago•4 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
61•rescrv•20h ago•22 comments

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

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

Restoring a Sinclair C5

https://woof.tech/@crashtestdev/114411537491626882
54•sohkamyung•9mo ago

Comments

zabzonk•9mo ago
Ohmigod - the nadir of British industry (or was that the Sinclair QL). I used occasionally see one of these scuttling around the North Circular in London UK, and I guess I admired the owner for his suicidal bravery, given that the NC is one of London's busiest roads.

Basically, a plastic shell around a washing-machine motor and under-watted battery - you could also pedal it yourself, except you really couldn't. And don't forget the flagstaff so HGV drivers have a chance of seeing you.

LeoPanthera•9mo ago
It is amazing, and depressing, how the urban legends surrounding the C5 persist, despite the truth being only a quick internet search away.

The electric motor was custom designed for the C5 by Polymotor. The chassis was engineered by Lotus, and while the shell is indeed injection-moulded polypropylene, this at the time innovative method was both strong and light.

The pedals provided assistance on inclines, and were not designed as the primary form of propulsion. For their intended function, they worked well. (See also the German designed “twike”.)

I think it’s sad that we enjoy denigrating commercial failures. Clive was simply ahead of his time. Electric vehicles and alternative personal transportation is a big industry now - the technology to realize his vision simply didn’t exist in 1985.

crashtestdev•9mo ago
Absolutely this; I'd go out on a limb here and say the C5 was a technological masterpiece of the time, the range and speed is equal to modern mid-range e-scooters that use far more powerful lithium batteries and far more efficient motors and control electronics, technologically it was fully there. What wasn't there was the market, it was really the only well known vehicle of it's class, so without anything else for people to compare it to, they compared it to cars and motorbikes which of course it pales against.

As for the "you can't really peddle it", I have no idea where that came from, I've so far only used it with peddles and it was absolutely fine, not great, not terrible either, just a heavyish fixed gear bike.

bizzyskillet•9mo ago
I think "Recumbent Tricycle" is my new favourite insult
detaro•9mo ago
... why would that be an insult?
hackingonempty•9mo ago
Interesting historically but if you want a real machine you can ride that's fast and comfortable there are commercial velomobiles available now that have been refined over several generations.

Ride as fast as a pro, shade in the summer, shorts and t-shirts in the winter, enough room to go camping or just bring a pie to a party, ass never hurts, and all for the same price as a top of the line road bike...

https://www.velomobileworld.com/

https://en.velomobiel.nl/

https://www.intercitybike.nl/en/

tonyedgecombe•9mo ago
I've been pondering getting one of these in my old age:

https://www.icetrikes.co

Not as fast as a velomobile but I don't really care about that anymore. It should cut out the risks of falling off and breaking a hip.

crashtestdev•9mo ago
They look cool; but ultimately I wanted the C5 just because it's a weird piece of technology and history which I like, not really for the practicality of riding anywhere.
ggm•9mo ago
Many of them were acquired by a gym chain, and stuck by the side of roads with a flag in them saying "Thor's Gym" or something. Eye-catcher roadside trash.
webprofusion•9mo ago
Rad. The main problem was that they marketed it to adults, and they should have sold it to kids instead. I would have sold a kidney.
TomMasz•9mo ago
Really. Different marketing, and let's be honest, better battery technology, and this would have succeeded.
crashtestdev•9mo ago
Although to be honest, it's original 80 AH lead acid battery got the same speed and range as my 1st generation Pure Air e-scooter that I used to commute to work every day in 2022, that's nearly 40 years newer technology, I think it ultimately failed because the market for city bound electric assisted vehicles just didn't exist yet.
Lio•9mo ago
We had a C5 that was donated to my school.

The science teacher replaced the motorbike battery with a car battery… and I got to ride it once.

It was magic. :D

jdsnape•9mo ago
Always good to see more Sinclair C5 content. My one claim to fame is that I am the person pictured 'driving' a friend's Sinclair C5 on the wikipedia page!
MisterTea•9mo ago
Ha! In the photo it looks like you're going "fast" so I have to ask, how does the handle bar placement feel in terms of comfort and safety? With your arms reaching down it looks as if you are vulnerable to being launched forward because you cant push back with your arms.
petercooper•9mo ago
Nice! I was in Cromer, Norfolk over the Easter holidays and saw my first C5 in the flesh. It was kinda odd as it seemed to be following me around as it was parked up in numerous places I went during the day, but someone is clearly getting around well on it in a pretty hilly area :)
mattl•9mo ago
Red Dwarf fans can see Lister riding around on his “space bike” in early episodes which is just a Sinclair C5 with some handles and a few other things added on for decoration.