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Stack Overflow Adds AI Assist Chat

https://beta.stackoverflow.com/ai-assist
1•written-beyond•59s ago•0 comments

Tim Cook Stepping Down as Apple CEO, John Ternus Taking Over

https://techcrunch.com/2026/04/20/tim-cook-stepping-down-as-apple-ceo-john-ternus-taking-over/
1•Vortigaunt•1m ago•0 comments

Agent Cost You $54,540

https://kyanfeat.substack.com/p/how-your-agent-cost-you-54540
1•kyanfeat•2m ago•0 comments

Isopods of the World

https://isopod.site/
1•debesyla•3m ago•0 comments

Johny Srouji Named Apple's Chief Hardware Officer

https://www.apple.com/newsroom/2026/04/johny-srouji-named-apples-chief-hardware-officer/
2•johnbehnke•7m ago•0 comments

Warfare in an Aging World

https://dispatch.bazaarofwar.com/p/warfare-in-an-aging-world
1•bookofjoe•8m ago•0 comments

Amiga DaynaPORT Driver for BlueSCSI V2 and ZuluSCSI

https://github.com/RobSmithDev/daynaport-amiga
1•doener•10m ago•0 comments

Tim Cook Retiring

https://www.bloomberg.com/news/articles/2026-04-20/apple-names-ternus-as-next-ceo-with-cook-becom...
1•longhaul•11m ago•0 comments

Apple Hardware Executive John Ternus to Become CEO

https://www.wsj.com/tech/apple-announces-ceo-john-ternus-2826465d
1•dcgudeman•11m ago•0 comments

Tim Cook steps down. Ternus to CEO

https://twitter.com/i/status/2046325832885432762
1•bundie•13m ago•0 comments

US opens refund portal to start paying back Trump's illegal tariffs

https://arstechnica.com/tech-policy/2026/04/us-opens-refund-portal-to-start-paying-back-trumps-il...
2•voxadam•13m ago•0 comments

Community Letter from Tim [Cook]

https://www.apple.com/community-letter-from-tim/
1•cakeface•14m ago•0 comments

LLM reasoning makes multi-provider systems significantly harder to operate

https://backboard.io/blog/i-think-therefore-i-am%E2%80%A6-a-big-pain-in-the-butt
1•joie_cc•17m ago•0 comments

Verus is a tool for verifying the correctness of code written in Rust

https://verus-lang.github.io/verus/guide/
3•fanf2•17m ago•0 comments

What is Canton Network (and why should you care)?

https://eric.mann.blog/what-is-canton-network/
1•eamann•18m ago•0 comments

Tim Cook to become Apple Executive Chairman

https://www.apple.com/newsroom/2026/04/tim-cook-to-become-apple-executive-chairman-john-ternus-to...
208•schappim•20m ago•57 comments

Amazon and Anthropic expand strategic collaboration

https://www.aboutamazon.com/news/company-news/amazon-invests-additional-5-billion-anthropic-ai
1•louiereederson•20m ago•0 comments

Apple CEO Tim Cook Stepping Down, John Ternus Confirmed as New Apple CEO

https://9to5mac.com/2026/04/20/apple-ceo-tim-cook-stepping-down-john-ternus-confirmed-as-new-appl...
6•jaredwiener•21m ago•0 comments

Slcoe – system-based LCOE for comparing energy technologies in different systems

https://www.sciencedirect.com/science/article/pii/S0360544226009837
1•doener•21m ago•0 comments

Apple names John Ternus CEO, replacing Tim Cook, who becomes Chairman

https://www.cnbc.com/2026/04/20/apple-names-john-ternus-ceo-replacing-tim-cook-who-becomes-chairm...
6•thomasjudge•21m ago•0 comments

2 Big Bottlenecks to Scaling Agentic State

https://georgianailab.substack.com/p/2-big-bottlenecks-to-scaling-agentic
1•dudzik•21m ago•0 comments

John Ternus to Become Apple CEO

https://www.businesswire.com/news/home/20260420318241/en/Tim-Cook-to-become-Apple-Executive-Chair...
12•newleaf•21m ago•0 comments

Golf club that always hits in the correct direction [video]

https://www.youtube.com/watch?v=2OfjZ3ORJfc
1•pajtai•22m ago•0 comments

Tim Cook Stepping Down

https://www.macrumors.com/2026/04/20/tim-cook-stepping-down/
22•schappim•23m ago•3 comments

Cursor CLI Agent gets Debug Mode and /btw support

https://cursor.com/changelog/04-14-26
1•paulrusso•24m ago•0 comments

Ninety Percent of U.S. bills carry traces of cocaine (2009)

https://edition.cnn.com/2009/HEALTH/08/14/cocaine.traces.money/
3•downbad_•25m ago•2 comments

Tim Cook steps down. Ternus to CEO

https://twitter.com/markgurman/status/2046325832885432762
11•fudged71•26m ago•1 comments

Thiel 2010: Maybe you could unilaterally change the world

https://xcancel.com/jimstewartson/status/2046259764812988627
2•doener•26m ago•0 comments

Rusternetes: A ground-up reimplementation of Kubernetes in Rust

https://github.com/calfonso/rusternetes
2•znpy•28m ago•0 comments

The AppSec Industry Bought Tools. It Didn't Hire Anyone to Run Them

https://laterstack.com/edr-open-source-malware-paul-mccarty-interview/
2•zoneywoney•28m ago•0 comments
Open in hackernews

Show HN: TheorIA – An Open Curated Physics Dataset (Equations,Explanations,JSON)

https://theoria-dataset.github.io/theoria-dataset/
9•ManuelSH•11mo ago
We’re building TheorIA— an open, high quality dataset of theoretical physics results: equations, derivations, definitions, and explanations — all in structured, machine- and human-readable JSON.

Why? Physics is rich with beautiful, formal results — but most of them are trapped in PDFs, LaTeX, or lecture notes. That makes it hard to:

- train symbolic/physics-aware ML models,

- build derivation-checking tools,

- or even just teach physics interactively.

THEORIA fills that gap. Each entry includes:

A result name (e.g., Lorentz transformations)

Clean equations (AsciiMath)

Straightforward step-by-step derivation with reasoning

Symbol definitions & assumptions

Programmatic validation using sympy

References, arXiv-style domain tags, and contributor metadata

Everything is in open, self-contained JSON files. No scraping, no PDFs, just clear structured data for physics learners, teachers, and ML devs.

Contributors Wanted: We’re tiny right now and trying to grow. If you’re into physics or symbolic ML:

Add an entry (any result you love)

Review others' derivations

Build tools on top of the dataset

GitHub https://github.com/theoria-dataset/theoria-dataset/

Licensed under CC-BY 4.0, and we welcome educators, students, ML people, or just anyone who thinks physics deserves better data.

Comments

somethingsome•11mo ago
There are only 3 entries, am I correct?
ManuelSH•11mo ago
Yes, we are at very early stage. Looking for other physics experts to help increasing it.
somethingsome•11mo ago
I like the idea of having a dataset for physics, but those entries are very basics, most of the physics happens with very complicated maths and it will be difficult to make an entry for a lot of physics.

For example, imagine the entry for the standard equation, should all the derivation and symbolic implementation done as a unique entry? It will be difficult to separate it in logical entries that reference each others, and many physical ideas are fundamentally different, leading to divergences.

I have the impression that it should be easier to just parse reference books and format each paragraph/section as an entry, and maybe build a graph. (considering the reference book as authoritative on the subject)

ManuelSH•11mo ago
I guess you mean the Lagrangian of the Standard Model… which I agree, it will be daunting… although there is no limit in a json…

The idea of automatically parsing books is very nice and possibly faster, but note that:

- there are already various datasets of physics papers and such content - the result will be quite different versus what we intent here, which is to have a high quality dataset of physics results with clear derivations (whenever derivation exist)

Maybe we can still use your idea to achieve the last point in some way… maybe there is a book that is already formatted as the dataset and we could use it as a starting point. But I don’t know any.

BrandiATMuhkuh•11mo ago
This is some cools work.

Not sure if it fits but I still have ~20k currated step by step solution for mathematics (pedagogical math) "lying" around from my previous startup. They are all hand currated. And could even be used for fine tuning or so.

Here are some details: The dataset has 20.600 Abstract Exercises which turn into 1.193.958 Concrete Exercises.

An Abstract Exercise looks like this: a + b = c A Concrete Exercise looks like this: 2 + 3 = 5 Tital compiled file size (JSONL): 11.6GB

And here is an explorer to see some of the data https://curriculum.amy.app/ToM

ManuelSH•11mo ago
very nice! maybe you can put this dataset in some repository like github, kaggle or hugging face, if you are not doing anything with it. Can be helpful to train models.