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

https://openciv3.org/
500•klaussilveira•8h ago•139 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
841•xnx•13h ago•503 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
54•matheusalmeida•1d ago•10 comments

A century of hair samples proves leaded gas ban worked

https://arstechnica.com/science/2026/02/a-century-of-hair-samples-proves-leaded-gas-ban-worked/
112•jnord•4d ago•18 comments

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

https://github.com/pydantic/monty
164•dmpetrov•9h ago•76 comments

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

https://github.com/valdanylchuk/breezydemo
166•isitcontent•8h ago•18 comments

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

https://vecti.com
280•vecti•10h ago•127 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
60•quibono•4d ago•10 comments

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

https://github.com/microsoft/litebox
340•aktau•15h ago•164 comments

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

https://eljojo.github.io/rememory/
225•eljojo•11h ago•139 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
332•ostacke•14h ago•89 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
421•todsacerdoti•16h ago•221 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
34•kmm•4d ago•2 comments

Show HN: ARM64 Android Dev Kit

https://github.com/denuoweb/ARM64-ADK
11•denuoweb•1d ago•0 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
360•lstoll•14h ago•251 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
76•SerCe•4h ago•60 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...
15•gmays•3h ago•2 comments

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

https://github.com/phreda4/r3
59•phreda4•8h ago•9 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
9•romes•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/
210•i5heu•11h ago•157 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
33•gfortaine•6h ago•8 comments

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

https://infisical.com/blog/devops-to-solutions-engineering
123•vmatsiiako•13h ago•51 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
159•limoce•3d ago•80 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
257•surprisetalk•3d ago•33 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/
1017•cdrnsf•18h ago•422 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
51•rescrv•16h ago•17 comments

I'm going to cure my girlfriend's brain tumor

https://andrewjrod.substack.com/p/im-going-to-cure-my-girlfriends-brain
93•ray__•5h ago•46 comments

Evaluating and mitigating the growing risk of LLM-discovered 0-days

https://red.anthropic.com/2026/zero-days/
44•lebovic•1d ago•12 comments

WebView performance significantly slower than PWA

https://issues.chromium.org/issues/40817676
10•denysonique•5h ago•0 comments

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

https://docs.smooth.sh/cli/overview
81•antves•1d ago•59 comments
Open in hackernews

Printed circuit board substrates derived from lignocellulose nanofibrils

https://www.nature.com/articles/s41598-025-91653-1
36•PaulHoule•3mo ago

Comments

throwup238•3mo ago
I suspect this material is dead on arrival because they don't compare how fire retardant it is compared to FR4 or evaluate whether it meets the UL 94V-0 fire safety standard.
Arrath•3mo ago
Good point but perhaps coatings or impregnated fire retardant compounds can be utilized?
crote•3mo ago
The problem is that treatment like that is probably not compatible with the whole "being biodegradable" thing - which defeats the entire purpose.

Same with "paper" coffee cups: you want coffee cups which can be recycled, and paper is recycleable, but paper can't hold water, so it requires a plastic / hydrophobic coating, so you can't recycle the paper, so your recycleable coffee cups aren't recycleable.

analog31•3mo ago
I'll never forget the smell of paper phenolic PCB's releasing their magic smoke.
Y_Y•3mo ago
> The research outlines the process of fibrillating lignin-rich cellulose pulp at 10 kW/h per kg into LCNF

That unit doesn't look right.

Why can't we all just use SI anyway :(

elcritch•3mo ago
That is SI? Well metric. Sounds like the liganization process uses electricity to create. There’s similar units used in electrochemistry to indicate how much energy is required.
jchw•3mo ago
10 kilowatts is 10,000 watts, which is 10,000 joules per second. So... 10,000 joules per second per hour per kilogram. Wait... What? What in the hell does "10kW/h" mean?!

Hopefully they meant kWh. Kilowatt-hours per kg makes a ton more sense. That's just a measure of energy spent per unit of mass produced, right?

(P.S.: though all things considered, it seems a shame that we use kilowatt-hours instead of something simpler like kilojoules... but I guess that would be harder to intuit in some cases?)

userbinator•3mo ago
This study underscores the potential of wood-derived nanomaterials like LCNF to reduce electronic waste (e-waste) associated with conventional PCB materials and promote the development of a more eco-friendly electronics, contributing to sustainable, high-performance ecoPCBs and advancing green technology.

So many trendy eco-virtue-signaling buzzwords, but as anyone who has worked with attempting to repair FR-1/FR-2 (SRBP) PCBs will tell you, they've been making them out of cellulose-derived materials for around a century; but they just aren't very good.

"Sustainable" = "doesn't last very long and is impossible to repair, sustaining the business of selling you a new one".

hinkley•3mo ago
I’ve heard the rayon process, which can take (m)any natural fiber source and convert it into something vaguely like a synthetic silk, has quite a pollution footprint. The more you have to process the fibers to be like a niche or synthetic fiber the more it becomes greenwashing.

Method Inc went through a phase where they made containers out of virgin materials because the overall ecological footprint was several times better than the best we could hope for plastic recycling, and that was before we found out plastic recycling is half sham. A lot of the trick was making thinner containers out of specialty materials that were lower volume than the waste stream from plastic recycling. Eventually they figured out a recyclable material that is as light as the disposable ones, so they get the best of both worlds. Unfortunately they only use those for hand soap refills.

xg15•3mo ago
Yup, this was also what irked me in the rationale of this paper: Combatting e-waste is a good cause, but this is not what the paper is doing - it's alleviating some of the harmful side-effects of e-waste.

The root cause that I'd like to see addressed is an industry that has incentives to churn out unrepairable throwaway electronics. But stuff like this that try to greenwash e-waste would make it less likely that the root cause is addressed, not more.

hinkley•3mo ago
We’ve got people making circuits from woody plant fibers and people making circuits from microbes that eat woody plant fibers.

Definitely want to keep those two factories separate. And don’t get the former wet.

Stratoscope•3mo ago
This story gives me nightmares!

Why? I recently had a repair bill of more than $12,000 for my Kia EV6, after rats got under the hood and chewed through a critical wiring harness.

Of course rats will chew through most anything, but the EV6 apparently has soy-based insulation on the wiring instead of traditional plastic. So it is extra tasty for rats!

GEICO covered everything beyond my $1000 comprehensive deductible, but I don't want to be thought of as an irresponsible policyholder, especially with the great rate they gave me on this car - literally half of my previous policy.

So I have taken extensive countermeasures. If anyone is curious, feel free to ask and I will list them.

rtaylorgarlock•3mo ago
Jaw dropped on reading this. The biodegradable Mercedes harnesses of the 90s followed the Volvo harnesses of the 80s (iirc). I thought we'd worked that out of the automotive engineering world by now. I'm not funded by the petroleum or rubber industry, yet i also can't help but wonder what would drive technical product managers to make a notable error? Wiring issues in cases aren't cheap problems to fix, nor do they fix themselves, nor increase longevity...
xyzzy123•3mo ago
Reminds me of this classic: https://haterade.substack.com/p/i-tasted-hondas-spicy-rodent...

You would think the auto manufacturers should shoulder the burden of making wires less delicious.

variaga•3mo ago
Not one mention of the material's dialectric constant
summa_tech•3mo ago
I'd expect the loss coefficient (tan d) to be terrible. Cellulosics hold onto water quite well. You will not have a good time pushing anything high-speed through this kind of board.

I would say the only practical application would be disposable things like PCBs in single-use vape pens. (Which are pretty environmentally offensive on other levels anyway.)

hulitu•3mo ago
> Not one mention of the material's dialectric constant

They weren't able to measure it because it kept changing. /s

ycui1986•3mo ago
So now we can have a few more failure modes. Dry rot, black mold, short caused by moisture, maybe even termite in electronics.