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

https://openciv3.org/
546•klaussilveira•9h ago•153 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
871•xnx•15h ago•527 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
77•matheusalmeida•1d ago•16 comments

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

https://github.com/valdanylchuk/breezydemo
186•isitcontent•10h ago•23 comments

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

https://github.com/pydantic/monty
189•dmpetrov•10h ago•84 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
10•videotopia•3d ago•0 comments

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

https://vecti.com
298•vecti•12h ago•133 comments

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

https://github.com/microsoft/litebox
347•aktau•16h ago•169 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
73•quibono•4d ago•16 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
343•ostacke•16h ago•90 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
441•todsacerdoti•18h ago•226 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
16•romes•4d ago•2 comments

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

https://eljojo.github.io/rememory/
240•eljojo•12h ago•148 comments

PC Floppy Copy Protection: Vault Prolok

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

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
378•lstoll•16h ago•256 comments

What Is Ruliology?

https://writings.stephenwolfram.com/2026/01/what-is-ruliology/
5•helloplanets•4d ago•1 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
222•i5heu•13h ago•168 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
97•SerCe•6h ago•78 comments

Show HN: ARM64 Android Dev Kit

https://github.com/denuoweb/ARM64-ADK
14•denuoweb•1d ago•2 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...
20•gmays•5h ago•3 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
162•limoce•3d ago•83 comments

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

https://github.com/phreda4/r3
63•phreda4•9h ago•11 comments

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

https://infisical.com/blog/devops-to-solutions-engineering
129•vmatsiiako•15h ago•56 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
40•gfortaine•7h ago•11 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
261•surprisetalk•3d ago•35 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/
1031•cdrnsf•19h ago•428 comments

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

https://github.com/dmtrKovalenko/zlob
6•neogoose•2h ago•3 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
56•rescrv•17h ago•19 comments

Show HN: Smooth CLI – Token-efficient browser for AI agents

https://docs.smooth.sh/cli/overview
85•antves•1d ago•61 comments

WebView performance significantly slower than PWA

https://issues.chromium.org/issues/40817676
20•denysonique•6h ago•3 comments
Open in hackernews

Flapping-wing robot achieves self-takeoff by adopting reconfigurable mechanisms

https://www.science.org/doi/10.1126/sciadv.adx0465
87•PaulHoule•4mo ago

Comments

mhb•3mo ago
The essential missing (or maybe I just missed it) video:

https://youtu.be/tD5I6x_bPkw?si=KFTx89LmPjrVu5Ib

Edit - better video:

https://scx2.b-cdn.net/gfx/video/2025/bird-like-robot-with-n...

05•3mo ago
It's a render. A real life takeoff video is still missing..
yorwba•3mo ago
Movie S5 from the supplementary material: https://imgur.com/a/LVb2m22
05•3mo ago
Looks super cool. Now I want to build one and stick an FPV camera on it:)
orthecreedence•3mo ago
You can see the string attached to it! Do they think we're stupid??
yorwba•3mo ago
The string goes slack when it lifts off, so it's not like it's being pulled up. I think it's there to catch it in the inevitable case of a crash. And maybe they haven't figured out how to land gracefully yet.
monooso•3mo ago
I look forward to Boston Dynamics turning this into something that will haunt my nightmares.
bigjohnjacob•3mo ago
The birds aren't real people are gonna love this.
ACCount37•3mo ago
Pretty cool. Just two servos per wing, with one shared BLDC motor to provide the power to the strokes. That's comparable to what normal fixed wing drones have. Extreme mechanical complexity though.

I can't see this being practical, but it makes for one hell of a tech demo. Wish there was footage available. It feels really incomplete without a video of this bird taking off, flying and landing.

JKCalhoun•3mo ago
I saw recently the Chinese (The Chinese!) are experimenting in this area (and with flying insect machines?) — perhaps for surveillance drones that will look for all practical purposes like an ordinary bird/insect.
ACCount37•3mo ago
The whole "surveillance drone" thing is so overrated. No one gives a shit, really.

People make things like insect drones and bird drones because they're cool. That's it. That's the only practical purpose. Anything else is flimsy justification, sometimes employed to get the funding to do the cool thing.

ge96•3mo ago
I used to be obsessed with rc ornithopters but I always thought the main problem was that hulking gear ratio/mechanism and the oscillation making it not really great for flight compared to fixed wing/propeller driven.

This one (servo driven) is really light compared to the usual RC https://www.youtube.com/watch?v=TuOw6BUOo78

This guy does great work, it's like his obsession https://www.youtube.com/watch?v=QrB1pKInIu0

PaulHoule•3mo ago
I had a really stylish robot dragonfly that I got from Big Lots at a huge discount, trouble was it could not fly in any amount of wind and the only place I could fly it was in Barton Hall.
ge96•3mo ago
I might know the one you're talking about, did it have a fan as a rudder?

Oh speaking of dragonfly-like ornithopter this one is hardcore https://www.youtube.com/watch?v=ZCrS52sM3Zs

Reminds me of that Chicken Run movie ha

PaulHoule•3mo ago
It was this

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

https://www.youtube.com/watch?v=p7j6KPbn4eE

JKCalhoun•3mo ago
Yeah, totally subscribed to "that guy". I think he's been experimenting with ducted fans (kind of not ornithopters) and also dragon-fly type of flight with four wings (entomopter?).
asdff•3mo ago
Advanced bird drones must be born secret technology. It makes little sense how so much can be understood about birds and yet there is no perfect bird replica on the market aside from these pared down maker lab tier efforts.

And indeed, lending further credence to the born secret idea is that the CIA has been experimenting on bird drones since at least the 1960s (1), and this was only revealed to the public in 2013. The state of the art must be so far advanced. What a prize for an intelligence agency to be able to create a surveillance system where it does not matter if it is detected on radar, or visualized at all because it looks exactly like indigenous bird populations.

1. https://en.wikipedia.org/wiki/Project_AQUILINE

TYPE_FASTER•3mo ago
Of course there is one available on Amazon: https://www.amazon.com/live/video/0a7d56413360489dbf25611edf...

Also: https://www.amazon.com/Kooteyybhyy-Ornithopter-Generation-He...

Which may be re-branded version of this:

https://www.youtube.com/watch?v=v6nuMDV6n18

https://www.amazon.com/stores/Hanvon/page/426FE09E-17DC-4FBB...

I found this forum: https://www.rcgroups.com/ornithopters-101/

Which led to this video: https://www.youtube.com/watch?v=yWqBoA5CfPs - really neat to see it climb and glide.

fijiaarone•3mo ago
Robots aren’t real.
jacquesm•3mo ago
What an amazing quality article.
ElijahLynn•3mo ago
Truth, so much detail and depth.
ElijahLynn•3mo ago
For the videos: search the page for "Movies S1 to S5" And click download to download a zip file of five videos. The fifth video shows the actual flight. Albeit, there's a string attached to the top, which doesn't appear to be helping it, but I'm not certain.