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Roons: A Marble Computer [video]

https://www.youtube.com/watch?v=8taEllwQ2iE
3•surprisetalk•5h ago

Comments

pvg•5h ago
Thread https://news.ycombinator.com/item?id=43859464
sargstuff•2h ago
Demo of some 'higher order' uses of roons[0]

Combine with tromp binary calculus[1][5] to demo 'free variable' as marble loop hole / 'jiggle' factor / statistical variance. (vs. original Lord Kelvin tide predicting machine)

Suppose would be bit tricky to orient pacman, even if for 1d roon pacman[3]. Roon pong version of [4] including 'roon marble matrix video'? Although, robotic pic-n-place / mechanical assembler for roon circuit assembly might make things bit easier. aka hardware implimentation of lisp.

Would be interesting to see an 80's 8bit computer (c64/atari) implimented in roon logic with LLM[2] to see how AI gets the proverbial ball rolling to arrive at a solultion(s).

Marble wrist watch[6] or marble slide rule might be more interesting.[6] (with RTC implimented in roon logic[7])

-----

[0] : https://whomtech.com/show-hn/

[1] : Tromp's binary lambda calculus, which is what Justine is using, is based on de Bruijn indices. : https://news.ycombinator.com/item?id=30494705

[2] : https://www.xda-developers.com/llm-running-commodore-64/

[3] : 1d pacman https://news.ycombinator.com/item?id=38845510

[4] : Original Pong did not have any code or even a microprocessor : https://news.ycombinator.com/item?id=31511719

[5] : misc. binary calculus notations : https://github.com/prathyvsh/lambda-calculus-visualizations

[6] : https://www.youtube.com/watch?v=UlvbLeI7l5w & https://www.youtube.com/watch?v=cUYleBSVsbE

[7] : https://www.thingiverse.com/thing:4917880

To Bind and Loose a Reference

https://thephd.dev/to-bind-and-loose-a-reference-optional
1•Bogdanp•2m ago•0 comments

Horse Browser

https://gethorse.com
1•gaws•7m ago•0 comments

Transparent Ambition: on translucent user interfaces

https://take.surf/2025/06/19/transparent-ambition
1•goranmoomin•10m ago•0 comments

Durability of Cybertruck HFS

https://twitter.com/cybertruck/status/1936154980014342398
1•LorenDB•19m ago•0 comments

Tauri

https://v2.tauri.app/
1•handfuloflight•22m ago•0 comments

Publishing a Docker Container for MS Edit to the GitHub Container Registry

https://til.simonwillison.net/github/container-registry
2•chmaynard•22m ago•0 comments

Wikimedia DNS

https://meta.wikimedia.org/wiki/Wikimedia_DNS
1•LeoPanthera•24m ago•2 comments

Resurrecting the Historic Cactus Movie Theater in Hawthorne Nevada 35mm Cinema [video]

https://www.youtube.com/watch?v=SqwU8VXpjEQ
1•fortran77•25m ago•0 comments

The Latin Library

https://www.thelatinlibrary.com
1•Frummy•28m ago•1 comments

Vibe-coding Minecraft mods (and the lessons learned)

https://maxleiter.com/blog/vibecoding-minecraft-mods
1•MaxLeiter•30m ago•0 comments

Researchers show AI art protection tools still leave creators at risk

https://www.tu-darmstadt.de/universitaet/aktuelles_meldungen/einzelansicht_511168.en.jsp
2•ohjeez•34m ago•0 comments

Photo overload might be warping our ability to remember

https://www.nationalgeographic.com/health/article/digital-smartphone-cameras-memory
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Disney Files Landmark Case Against AI Image Generator [video]

https://www.youtube.com/watch?v=zpcWv1lHU6I
3•rectang•45m ago•1 comments

Hybrid Cars, Once Derided and Dismissed, Have Become Popular

https://www.nytimes.com/2025/06/20/business/energy-environment/hybrid-cars-electric-vehicles.html
1•bookofjoe•49m ago•1 comments

The Limits of Founder Friendly

https://www.newcomer.co/p/the-limits-of-founder-friendly-what
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HIV vaccine candidate could offer strong protection with just one dose

https://news.mit.edu/2025/supercharged-vaccine-could-offer-strong-protection-with-one-dose-0618
8•jnord•56m ago•1 comments

Non-uniform finite-element meshes defined by ray dynamics for Helmholtz problems

https://arxiv.org/abs/2506.15630
2•badmonster•58m ago•1 comments

Requiem for a Solar Plant

https://7goldfish.com/articles/Requiem_for_a_solar_plant.php
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An open standard for defining AI context and collaboration across platforms

https://github.com/davidkimai/context.json
1•davidkimai•59m ago•0 comments

She flew hazardous fighter planes for Britain during WW2. She just turned 106

https://www.theguardian.com/world/2025/jun/21/woman-fighter-pilot-second-world-war
1•tocs3•1h ago•1 comments

Be Positive – Strive for Balance

https://www.penzba.co.uk/StriveForBalance.html?yf21hn
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Studio Ghibli's Majestic Sensibility Is Drawing Imitators

http://nytimes.com/2025/06/18/arts/studio-ghibli-video-games.html
1•donohoe•1h ago•0 comments

Stepping back as maintainer

https://github.com/jesseduffield/lazygit/issues/4655
2•r-w•1h ago•0 comments

Texas Governor Greg Abbott signs strategic Bitcoin reserve bill into law

https://www.theblock.co/post/359089/texas-governor-greg-abbott-signs-strategic-bitcoin-reserve-bill-into-law
2•austinallegro•1h ago•0 comments

Adding linear-time lookbehinds to RE2

https://systemf.epfl.ch/blog/re2-lookbehinds/
2•Bogdanp•1h ago•0 comments

Im Investing

1•sramirez100•1h ago•0 comments

I went for 1,200 jobs but got only two interviews

https://www.bbc.co.uk/news/articles/c9397lre3lyo
12•spzb•1h ago•4 comments

Save 30 minutes prepping 1-on-1s with this free tool

https://tndm.app/
1•TandemApp•1h ago•1 comments

Don't Throw Out Your Old SD Cards – Do This Instead

https://www.slashgear.com/1890340/old-sd-card-uses/
1•Bluestein•1h ago•0 comments

Application First – Media over QUIC

https://quic.video/blog/application-first
2•wofo•1h ago•0 comments