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Will Future Generations Think We're Gross?

https://chillphysicsenjoyer.substack.com/p/will-future-generations-think-were
1•crescit_eundo•1m ago•0 comments

Kernel Key Retention Service

https://www.kernel.org/doc/html/latest/security/keys/core.html
1•networked•1m ago•0 comments

State Department will delete Xitter posts from before Trump returned to office

https://www.npr.org/2026/02/07/nx-s1-5704785/state-department-trump-posts-x
1•righthand•4m ago•0 comments

Show HN: Verifiable server roundtrip demo for a decision interruption system

https://github.com/veeduzyl-hue/decision-assistant-roundtrip-demo
1•veeduzyl•5m ago•0 comments

Impl Rust – Avro IDL Tool in Rust via Antlr

https://www.youtube.com/watch?v=vmKvw73V394
1•todsacerdoti•5m ago•0 comments

Stories from 25 Years of Software Development

https://susam.net/twenty-five-years-of-computing.html
2•vinhnx•6m ago•0 comments

minikeyvalue

https://github.com/commaai/minikeyvalue/tree/prod
3•tosh•10m ago•0 comments

Neomacs: GPU-accelerated Emacs with inline video, WebKit, and terminal via wgpu

https://github.com/eval-exec/neomacs
1•evalexec•15m ago•0 comments

Show HN: Moli P2P – An ephemeral, serverless image gallery (Rust and WebRTC)

https://moli-green.is/
2•ShinyaKoyano•19m ago•1 comments

How I grow my X presence?

https://www.reddit.com/r/GrowthHacking/s/UEc8pAl61b
2•m00dy•21m ago•0 comments

What's the cost of the most expensive Super Bowl ad slot?

https://ballparkguess.com/?id=5b98b1d3-5887-47b9-8a92-43be2ced674b
1•bkls•21m ago•0 comments

What if you just did a startup instead?

https://alexaraki.substack.com/p/what-if-you-just-did-a-startup
3•okaywriting•28m ago•0 comments

Hacking up your own shell completion (2020)

https://www.feltrac.co/environment/2020/01/18/build-your-own-shell-completion.html
2•todsacerdoti•31m ago•0 comments

Show HN: Gorse 0.5 – Open-source recommender system with visual workflow editor

https://github.com/gorse-io/gorse
1•zhenghaoz•31m ago•0 comments

GLM-OCR: Accurate × Fast × Comprehensive

https://github.com/zai-org/GLM-OCR
1•ms7892•32m ago•0 comments

Local Agent Bench: Test 11 small LLMs on tool-calling judgment, on CPU, no GPU

https://github.com/MikeVeerman/tool-calling-benchmark
1•MikeVeerman•33m ago•0 comments

Show HN: AboutMyProject – A public log for developer proof-of-work

https://aboutmyproject.com/
1•Raiplus•33m ago•0 comments

Expertise, AI and Work of Future [video]

https://www.youtube.com/watch?v=wsxWl9iT1XU
1•indiantinker•34m ago•0 comments

So Long to Cheap Books You Could Fit in Your Pocket

https://www.nytimes.com/2026/02/06/books/mass-market-paperback-books.html
3•pseudolus•34m ago•1 comments

PID Controller

https://en.wikipedia.org/wiki/Proportional%E2%80%93integral%E2%80%93derivative_controller
1•tosh•39m ago•0 comments

SpaceX Rocket Generates 100GW of Power, or 20% of US Electricity

https://twitter.com/AlecStapp/status/2019932764515234159
2•bkls•39m ago•0 comments

Kubernetes MCP Server

https://github.com/yindia/rootcause
1•yindia•40m ago•0 comments

I Built a Movie Recommendation Agent to Solve Movie Nights with My Wife

https://rokn.io/posts/building-movie-recommendation-agent
4•roknovosel•40m ago•0 comments

What were the first animals? The fierce sponge–jelly battle that just won't end

https://www.nature.com/articles/d41586-026-00238-z
2•beardyw•48m ago•0 comments

Sidestepping Evaluation Awareness and Anticipating Misalignment

https://alignment.openai.com/prod-evals/
1•taubek•49m ago•0 comments

OldMapsOnline

https://www.oldmapsonline.org/en
2•surprisetalk•51m ago•0 comments

What It's Like to Be a Worm

https://www.asimov.press/p/sentience
2•surprisetalk•51m ago•0 comments

Don't go to physics grad school and other cautionary tales

https://scottlocklin.wordpress.com/2025/12/19/dont-go-to-physics-grad-school-and-other-cautionary...
2•surprisetalk•51m ago•0 comments

Lawyer sets new standard for abuse of AI; judge tosses case

https://arstechnica.com/tech-policy/2026/02/randomly-quoting-ray-bradbury-did-not-save-lawyer-fro...
5•pseudolus•51m ago•0 comments

AI anxiety batters software execs, costing them combined $62B: report

https://nypost.com/2026/02/04/business/ai-anxiety-batters-software-execs-costing-them-62b-report/
1•1vuio0pswjnm7•52m ago•0 comments
Open in hackernews

Show HN: Interactive physics simulations I built while teaching my daughter

https://www.projectlumen.app/
87•anticlickwise•2w ago
I started teaching my daughter physics by showing her how things actually work - plucking guitar strings to explain vibration, mixing paints to understand light, dropping objects to see gravity in action.

She learned so much faster through hands-on exploration than through books or videos. That's when I realized: what if I could recreate these physical experiments as interactive simulations?

Lumen is the result - an interactive physics playground covering sound, light, motion, life, and mechanics. Each module lets you manipulate variables in real-time and see/hear the results immediately.

Try it: https://www.projectlumen.app/

Comments

tetris11•2w ago
This is pretty nice! I was quite impressed with the colour mixing one in particular

(At the same time I was reminded a bit by the subtext of the web series Don't Hug Me I'm Scared, especially when pumping the heart to deliver body's needed cargo, like aspic and white sauce -- but that's just my brainrot showing)

I can imagine this being pretty fun on a tablet

anticlickwise•2w ago
yes. This was designed for the Ipad
vibefarm•2w ago
wholesome :)
spuz•2w ago
Not sure if it's just Firefox, but a lot of things seem to be rendering incorrectly and very slowly for me. The text for the descriptions is very small compared to the rest of the text which makes it kind of hard to read. Also, on the Spectrum demo, the prism is displayed up and to the left of the light rays. After a few minutes the pages just grind to a halt so I can't really explore the rest.
mzajc•2w ago
It's not just Firefox, a lot of things are broken. For example, clicking on either ball in "The Falls" moves it up and lets you drag it, but they snap into the same place. The text also reminds me of how ChatGPT writes. Was this made with a LLM?
languid-photic•2w ago
Fun! Any plan to open source it?
rahimnathwani•2w ago
Kudos! I love seeing things people have built for their kids.

This reminds me a bit of this site, which has been around for a long time and has a similar motivation: teach physics concepts using simulations:

https://phet.colorado.edu/en/simulations/filter?subjects=phy...

tehlike•2w ago
Not the same level - but teaching my kid to use keyboard, and i vibecoded this: https://ai.studio/apps/drive/1MErVnhhK89peNh1RPa3y-ufFExG5Bn...
rahimnathwani•2w ago
This is cool!

I'm curious whether you're using this to teach initial familiarity, or as the first step toward touch typing?

For touch typing, I think Typing Club is a good place to start for kids. And then Keybr to develop full fluency. And then Monkeytype to develop speed.

EDIT - when I wrote this comment I had only opened the link on my phone. Now I see it on desktop it's clear that the on-screen keyboard is intended to teach key positions without the user looking down at their keyboard. It's good.

mncharity•2w ago
In case anyone else was curious, `ai.studio/apps` apps apparently require a google account login by default. Google ai-mode says allowing public access is an author option, but then (1) API costs are borne by the author, and (2) there are some (unclear) compliance implications.
anticlickwise•2w ago
This is cool
thimkerbell•2w ago
Extra points if its homepage can offer informative 80-character descriptions. (What is the term for this (suggested) web design?)
gfaure•2w ago
I wish it were possible to link to a particular page (e.g. the optics simulation).
jastanton•2w ago
Love this, simulations are great. My nit pick is around how fast these animations are. You blink and you miss it. I can imagine children having more difficult time with this than myself as an adult. (For context I started with the sound animations: The Invisible Dance -- Shape the Wave & The Journey)
anticlickwise•2w ago
will work on slowing it down
admiralrohan•2w ago
Looking great. Having some context on the pages would be great, I can understand the grass-rabbit-fox dynamics but not clear with the the rest of the simulations.

And you can persist the page in query param. So someone can directly sent people to particular simulation with data.

anticlickwise•2w ago
I am adding more context soon.

I will work on the url query param persistence - I know its annoying at the moment

mncharity•2w ago
Two quick errata: In Sound / Biology, a control inversion: low pitch (slider and sound) animates blue short hairs, and high pitch animates long red. In the windtunnel > Wing, lift is reported but the airstream remains undeflected.[1]

[1] randomly, fwiw, I've used cloud deck slicing to illustrate downdraft, eg https://imgur.com/4hhZ7zq https://www.youtube.com/watch?v=0HIddtgGzDE . Or perhaps moments of "yoink" like... err, https://www.youtube.com/watch?v=dfY5ZQDzC5s&t=154s .

anticlickwise•2w ago
Yes. I will have to get the physics right for the air stream. will work on that. Thanks
nemath•2w ago
Very cool!
imtringued•2w ago
I spotted a bug: "The Tiny City > The Web"

You should use the rabbit emoji instead: https://www.compart.com/en/unicode/U+1F407

rajkumar14•2w ago
Unrelated to the question you posted, but how are you testing these PCBs? Specifically, are you using any software architecture for data logging and running tests?