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Heathrow Drops the Liquids Rule

https://flymag.com/heathrow-drops-the-liquids-rule-what-changes-at-lhr-and-how-close-the-u-s-real...
27•lxm•1h ago•11 comments

The Hidden Engineering of Runways

https://practical.engineering/blog/2026/1/20/the-hidden-engineering-of-runways
204•crescit_eundo•6d ago•57 comments

ChatGPT Containers can now run bash, pip/npm install packages and download files

https://simonwillison.net/2026/Jan/26/chatgpt-containers/
216•simonw•8h ago•190 comments

Any application that can be written in a system language, eventually will be

https://www.avraam.dev/blog/system-language-corollary
68•almonerthis•3d ago•66 comments

There is an AI code review bubble

https://www.greptile.com/blog/ai-code-review-bubble
198•dakshgupta•12h ago•141 comments

Apple introduces new AirTag with longer range and improved findability

https://www.apple.com/newsroom/2026/01/apple-introduces-new-airtag-with-expanded-range-and-improv...
311•meetpateltech•13h ago•417 comments

People who know the formula for WD-40

https://www.wsj.com/business/the-secret-society-of-people-who-know-the-formula-for-wd-40-e9c0ff54
96•fortran77•6h ago•171 comments

Dithering – Part 2: The Ordered Dithering

https://visualrambling.space/dithering-part-2/
135•ChrisArchitect•8h ago•18 comments

JuiceSSH – Give me my pro features back

https://nproject.io/blog/juicessh-give-me-back-my-pro-features/
232•jandeboevrie•10h ago•116 comments

You have to know how to drive the car

https://www.seangoedecke.com/knowing-how-to-drive-the-car/
49•alexwennerberg•4h ago•35 comments

RIP Low-Code 2014-2025

https://www.zackliscio.com/posts/rip-low-code-2014-2025/
162•zackliscio•11h ago•74 comments

Windows 11's Patch Tuesday nightmare gets worse

https://www.windowscentral.com/microsoft/windows-11/windows-11s-botched-patch-tuesday-update-nigh...
180•01-_-•12h ago•143 comments

Pharos: The Lighthouse at Alexandria

https://penelope.uchicago.edu/encyclopaedia_romana/greece/paganism/pharos.html
23•teleforce•6d ago•4 comments

AI code and software craft

https://alexwennerberg.com/blog/2026-01-25-slop.html
103•alexwennerberg•9h ago•70 comments

Show HN: TetrisBench – Gemini Flash reaches 66% win rate on Tetris against Opus

https://tetrisbench.com/tetrisbench/
78•ykhli•9h ago•32 comments

The Adolescence of Technology

https://www.darioamodei.com/essay/the-adolescence-of-technology
146•jasondavies•10h ago•104 comments

Model Market Fit

https://www.nicolasbustamante.com/p/model-market-fit
20•nbstme•6d ago•2 comments

Why autosave is not recovery

https://zippers.dev/blog/why-savior-exists
8•Pepp38•2d ago•4 comments

Television is 100 years old today

https://diamondgeezer.blogspot.com/2026/01/tv100.html
545•qassiov•13h ago•194 comments

France Aiming to Replace Zoom, Google Meet, Microsoft Teams, etc.

https://twitter.com/lellouchenico/status/2015775970330882319
565•bwb•11h ago•472 comments

iPhone 5s Gets New Software Update 13 Years After Launch

https://www.macrumors.com/2026/01/26/iphone-5s-software-update/
71•angott•2h ago•21 comments

Porting 100k lines from TypeScript to Rust using Claude Code in a month

https://blog.vjeux.com/2026/analysis/porting-100k-lines-from-typescript-to-rust-using-claude-code...
171•ibobev•14h ago•113 comments

Fedora Asahi Remix is now working on Apple M3

https://bsky.app/profile/did:plc:okydh7e54e2nok65kjxdklvd/post/3mdd55paffk2o
449•todsacerdoti•10h ago•170 comments

Y Combinator website no longer lists Canada as a country it invests in

https://betakit.com/y-combinator-website-no-longer-lists-canada-as-a-country-it-invests-in/
117•TheLegace•4h ago•67 comments

Qwen3-Max-Thinking

https://qwen.ai/blog?id=qwen3-max-thinking
421•vinhnx•12h ago•386 comments

San Francisco Graffiti

https://walzr.com/sf-graffiti
152•walz•17h ago•177 comments

After two years of vibecoding, I'm back to writing by hand

https://atmoio.substack.com/p/after-two-years-of-vibecoding-im
677•mobitar•14h ago•514 comments

OpenFlexure Microscope

https://openflexure.org/projects/microscope/
55•o4c•5d ago•11 comments

Show HN: Only 1 LLM can fly a drone

https://github.com/kxzk/snapbench
147•beigebrucewayne•16h ago•79 comments

Google AI Overviews cite YouTube more than any medical site for health queries

https://www.theguardian.com/technology/2026/jan/24/google-ai-overviews-youtube-medical-citations-...
369•bookofjoe•13h ago•197 comments
Open in hackernews

Parametric Modeling with Grasshopper

https://baharmon.github.io/basics
40•downboots•8mo ago

Comments

ddkto•8mo ago
It’s hard to believe this is the first time I’ve seen Grasshopper on HN!

Just this morning, a colleague showed me a web app for building option exploration that he had vibe coded on Replit that wrapped around existing core logic in a Grasshopper script hosted in RhinoCompute [1].

The combination of visual programming, the tree data structure and Rhino’s geometry engine has made this the de facto standard for parametric design in architecture (sorry, Dynamo…)

[1] https://github.com/mcneel/compute.rhino3d

downboots•8mo ago
Similar interface idea echoed:

Unity

https://game-ace.com/wp-content/uploads/2020/04/Bolt5.gif

Blender

https://blenderartists.org/uploads/default/original/4X/3/0/c...

Chemcad

https://img.informer.com/screenshots/3390/3390423_1.gif

Even KiCad if we stretch the analogy

Would be good to see this for general programs, or with modular AI agents, or for ODE compartment models.

Also of note: https://worrydream.com/ExplorableExplanations

FormFollowsFunc•8mo ago
Am I wrong in thinking that Grasshopper is procedural modeling and not parametric modeling? Parametric modeing is used in software like Solid Works where you don’t have nodes but have parameters, a constraint system and construction history. Solid Works was developed in the 90s while Grasshopper came out in 2007. Another is example is Pro/Engineer from Parametric Technology Company (PTC) which came out in 1988. Patrik Schumacher, an architect coined the term parametricism in 2008. His employees created node graphs in Grasshopper while he just tweaked the parameters. I wonder if that’s why he came up with the term. Grasshopper has parameters but what makes it different from industrial design CAD is that you construct geometry with a series of nodes i.e. a procedure.
Duanemclemore•8mo ago
Grasshopper doesn't have to be used strictly "procedurally" as you can reference in geometry from Rhino. However, some of us try to work as procedurally as possible - creating everything strictly within Grasshopper if at all possible. It -is- also possible to use it as a very strong parametric design tool. There is no looping exposed to the user in a normal gh script - but used in the way I think is best, you're always applying conditional logic to make the data and operations do what you want.

A quick example - you can use what are called gates and filters in Grasshopper, so you can do things like route faces that meet some criterion you've set through one set of operations and those which don't through another. Then you can use pattern matching or other operations to weave the data back together in the proper order...

dmos62•8mo ago
You seem insightful on this subject. What other parametric design tools, techniques or technologies do you consider noteworthy?
Duanemclemore•8mo ago
Hey, I'm not used to feeling "seen" on HN! Architect, architecture professor, and computational designer here. This is a great first intro to Grasshopper. The links he provides near the top are next steps for those interested in more.

I've found that it opens computational design and programming more broadly up to a broader audience. It has found huge purchase in architecture specifically. I would say this is as much cultural as technical, as architects generally are less rigorously systematic and more global in their thought processes. As people who work largely in the visual domain we are also "visual learners" so to speak.

I first started dipping my toe into Grasshopper in about 2010, and feel that I was fairly expert by about 2015. SHAMELESS PLUG [0]. I've used it at a high level since, and taught it extensively.

Most users - almost all for a very long time - used it primarily as a tool to create, draw, and fabricate more crazier geometry easier. And it is certainly good for that. But in using it - and especially in teaching it - I also find that it is excellent to demystify the design process in ways that folks like programmers instinctively understand. That is you have to be able to break complex problems down to a series of atomically small operations, then build those back up to sophisticated outcomes.

Maybe the most valuable aspect of this - both in my practice and teaching - is understanding how to work both as procedurally and parametrically as possible (I'll put more about this under the comment to that end that's already been posted). Many, if not most, of our jewelry pieces are standalone grasshopper files which reference no outside data at all.

Anyway - I have much, much more I could say about: its use in architecture, design, and education; its relation to learning to think and create a rigorous and flexible design process; and more. But it's great to see it here!

[0] Since 2015 my partner and I have run jewelry company X Over Zero - https://xover0.com/ . All of our designs start as my mathematical and geometric explorations, coded in Grasshopper.

p.s. Incidentally I'm also based in the deep south like Mr. Harmon. And - although we must know people in common, sadly this is the first time he's hitting my radar. I'll be emailing him by the end of the night. Thank you OP for bringing him and his work to my attention!

Duanemclemore•8mo ago
If you want to check out the motherlode of other visual programming languages, platforms, etc check out Ivan Reese's Visual Programming Codex.

https://github.com/ivanreese/visual-programming-codex

https://github.com/ivanreese/visual-programming-codex/blob/m...

Although I'm going to have to create a pull request because he doesn't have Flowgorithm on there, which is an excellent tool for teaching the very very first steps of learning to program...

http://flowgorithm.org/

Terrible name, wonderful tool.

msds•8mo ago
It’s fun seeing an uptick of rhino/grasshopper content here lately - two articles in a week?! The McNeel extended universe is a fun place to play around in, and I’ve met lots of great people since I started working on Rhino.
jazzyjackson•8mo ago
Grasshopper is dope. Years ago I used it to pipe in skeleton and RGB mesh data from a Microsoft Kinect and then sent Open Sound Control packets to Pd-extended to trigger sound events with my body. Really great for general purpose event oriented programming

https://youtu.be/VOu3waxAYDw