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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...
872•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
78•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/
1032•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•62 comments

WebView performance significantly slower than PWA

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

DNA Learning Center: Mechanism of Replication 3D Animation

https://dnalc.cshl.edu/resources/3d/04-mechanism-of-replication-advanced.html
71•timschmidt•2mo ago

Comments

timschmidt•2mo ago
Complete list of DNALC animations here: https://dnalc.cshl.edu/resources/animations/

Some favorites:

https://dnalc.cshl.edu/resources/3d/13-transcription-advance...

https://dnalc.cshl.edu/resources/3d/16-translation-advanced....

https://dnalc.cshl.edu/resources/3d/08-how-dna-is-packaged-a...

https://dnalc.cshl.edu/resources/3d/central-dogma.html

dataviz1000•1mo ago
> https://dnalc.cshl.edu/resources/3d/central-dogma.html

I stepped over people huddled on the sidewalk, dirty, splicing the fiber optic cable yesterday. I wonder how long before there are little robots that do the splicing without humans?

jcims•1mo ago
My brother does that exact work.

From what I’ve gathered the actual splicing is partly automated today and relatively straightforward if somewhat tedious. The big variable is the context. New construction should have relatively few variables.

With repair, everything goes out the window. I just talked to him last night and he was out on a cable cut repair all night Friday. Middle of a snowstorm, maps were not accurate, repair site was very difficult to work in.

HPsquared•1mo ago
With how massively parallel the human body is, this process is copying DNA at an average rate of around 1 million miles per hour if you put all the DNA into a single string. (Consider that each human cell contains about 2 metres worth of DNA)
pama•1mo ago
I’d be curious about this global replication rate as a function of age.
my-toe-siz•1mo ago
There isn't a global rate, mitotis rate depends on the cell type and many other inputs.

For example, see Table 1: https://book.bionumbers.org/how-quickly-do-different-cells-i...

You /could/ compute a global mean or median mitosis rate, and show how it changes/doesn't change with age, but it wouldn't say very much biologically. A narrower analysis that considers cell type and other context could be meaningful.

af78•1mo ago
A rate of 10 000 (ten thousand) RPM is mentioned in the video for certain bacteria. My background is in mechanical engineering, does RPM stand for revolutions per minute here? Sounds unbelievably fast for biochemical processes.
jcims•1mo ago
Yep

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

The wild thing is that it doesn't have a 'gas tank' of ATP to drive the reaction, it goes this fast while being fueled one molecule at a time from the environment.

Where does the ATP come from?

Buckle up my mechanical engineer friend - https://www.youtube.com/watch?v=OT5AXGS1aL8

I've watched that video a hundred times and it still gives me chills haha.

rolph•1mo ago
the reactant molecules themselves, are primed with an ATP like a one use capacitor, it provides threshold energy, and is "consumed" as part of the reaction.
jcims•1mo ago
Nice. This was a detail I wasn't picking up on for some reason.
jinnko•1mo ago
I remember studying this in detail 30 years ago. To watch that whole process in a video now it's mind blowing. Thank you.
timschmidt•1mo ago
I find that a good rule is that the smaller the system, the faster the interactions.

Also you may be interested in flagellar motors: https://www.youtube.com/watch?v=VPSm9gJkPxU

christoph123•1mo ago
"Intricate as this mechanism appears, numerous components have been deliberately left out to avoid complete confusion" :D
N_Lens•1mo ago
Wise choice
jcims•1mo ago
One name you'll find associated with many of these animations is Drew Berry.

If I had these when I was in high school in the 80s I truly think I would have gone into molecular biology. They are obviously have flaws in terms of a true representation of the process, but it makes the machine much more apparent and that's always been the thing that kept it at bay for me.

More of this style of animation can be found in the WEHImovies channel on YouTube

https://www.youtube.com/@WEHImovies/videos

rolph•1mo ago
one of the most informative moments, was when instructor broke ranks and referred to figures as "cartoons", and that reset the context for a lot of things.

figures are very sparse, for brevity. the real situation is buried in a mantle of molecules.

the animations dont quite capture what individual molecules are doing, but give snapshots of cannonical points in the process. its a very busy bunch of reaction intermediates, and resonance structures, facilitating the exchange of functionalities.

most important was the concept of a function-repair equilibrium machine, as action cycle of the machine is damaging, and requires immediate repair, in addition to the environmental onslaught of damages.

picture having to check a file for corruption every time its accessed.

bonyt•1mo ago
Hey, working at the DNALC was my first job when I was in high school. I made a port of their iOS 3D brain app for Android, based on pre-rendered images (which was the style at the time - 2009-ish). It looks like it has since been taken down, which makes sense - I targeted my G1 at the time for acceptable performance, and Android broke things as it moved on. I also helped out on some web apps at the time. Great experience.

https://dnalc.cshl.edu/resources/products/3d-brain-app.html

https://web.archive.org/web/20230307055457/https://play.goog...

the__alchemist•1mo ago
It would be so cool if we could (Maybe it's been done?) do this with a simulation!
timschmidt•1mo ago
I spoke to some researchers about this while working for a Science and Technology Research center affiliated with the regional supercomputer center. I was told that there are still far too many molecules in a single cell to simulate fully, but that simulations had been run with state of the art quantum physics simulation software for some dozens or hundreds of molecules over several femtoseconds. The researcher told me that this took several weeks of supercomputer time, and that when the results were examined one take-away was that "around biological molecules, water seems to behave in an exceedingly ordered manner" as if the water molecules themselves are an integral part of the machinery, not just a medium they're suspended in.
the__alchemist•1mo ago
So cool!

I can see how a cell is far too complicated to contemplate at this time. But, if focusing on the video of the DNA replication complex. (DNA strand + a few enzymes), I wonder if it could be in the realm of doable within the coming years or decades.

Re water... yea... I suspect explicit solvents are the way to go. So, you are not just simulating the protein and DNA molecules, but also each water.

timschmidt•1mo ago
I believe the simulation I spoke to the researcher about was around 100 atoms cubed. So 1,000,000 atoms. Numbers vary wildly with cell size, but a typical cell might contain 100 trillion atoms. So, a factor of 100,000 difference in scale. Which would be between 16 and 17 doublings. Around 25 years given Moore's law. The conversation happened probably 8 years ago, so only 17 years to go! lol