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Rust Memory Management: Ownership vs. Reference Counting

https://slicker.me/rust/ownership_and_borrowing_vs_reference_counting.html
1•vinhnx•4m ago•0 comments

Caching Expensive Functions in Rust

https://kocharhook.com/post/5/caching-expensive-functions-in-rust/
2•vinhnx•4m ago•0 comments

What Happens When You Build an Inode-Style Vector in Rust

https://sot.dev/inode-style-vector-in-rust.html
1•vinhnx•4m ago•0 comments

FlipHTML5 Pdf Downloader

https://fliphtml5.aivaded.com
1•godsbee•11m ago•0 comments

APL – A Glimpse of Heaven

https://web.archive.org/web/20250316112937/https://archive.vector.org.uk/art10011550
1•tosh•11m ago•0 comments

Show HN: Kaniop – Kubernetes Operator for Kanidm

https://github.com/pando85/kaniop
2•pando85•13m ago•1 comments

Carnival of the Wicked

https://cinemasojourns.com/2026/04/24/carnival-of-the-wicked/
1•jjgreen•15m ago•0 comments

Well, this is embarrassing: The Lunar Gateway's primary modules are corroded

https://arstechnica.com/space/2026/04/well-this-is-embarrassing-the-lunar-gateways-primary-module...
2•taubek•16m ago•0 comments

NodeLLM: RubyLLM in JavaScript

https://github.com/node-llm/node-llm
1•earcar•18m ago•0 comments

Show HN: My self-custodial trading platform

https://www.aulico.com
1•kiosktryer•21m ago•0 comments

Show HN: GitHub Directory for Public APIs

https://github.com/public-apis/public-apis/blob/master/README.md
1•wasimsk•22m ago•1 comments

Zhenguan Zhengyao

http://www.chinaknowledge.de/Literature/Historiography/zhenguanzhengyao.html
1•teleforce•25m ago•0 comments

Apple to Launch 'MacBook Ultra' with These Six New Features

https://www.macrumors.com/2026/04/24/macbook-ultra-up-to-six-new-features/
2•cjaackie•25m ago•0 comments

Ask HN: What's Your Biggest Fear?

1•wasimsk•31m ago•1 comments

Show HN: A Karpathy-style LLM wiki your agents maintain (Markdown and Git)

https://github.com/nex-crm/wuphf
26•najmuzzaman•31m ago•6 comments

Quantization for Neural Networks

https://leimao.github.io/article/Neural-Networks-Quantization/
2•eigenBasis•33m ago•0 comments

My New York Misadventure (1932)

https://winstonchurchill.org/publications/finest-hour/finest-hour-136/my-new-york-misadventure/
1•downbad_•37m ago•1 comments

Aspirin can reduce the risk of cancer – and we're starting to understand why

https://www.bbc.com/future/article/20260420-cancer-how-aspirin-may-be-a-powerful-new-weapon-again...
2•selvan•40m ago•0 comments

Show HN: LLMs consume 5.4x less mobile energy than ad-supported web search

https://dupr.at/thermodynamic-efficiency-inversion
2•duprat•40m ago•0 comments

Soundtrack of the sea: divers use underwater speakers to help dying coral reefs

https://www.theguardian.com/environment/2026/apr/24/coral-reefs-jamaica
1•Almured•43m ago•1 comments

The Word for World: The Maps of Ursula K Le Guin

https://www.aaschool.ac.uk/public/exhibitions/the-word-for-world
1•zeristor•45m ago•1 comments

The QEII garden – built from its own ruins – opens in Regent's Park

https://www.ianvisits.co.uk/articles/a-garden-built-from-its-own-ruins-opens-in-regents-park-89152/
1•zeristor•46m ago•1 comments

Zerodha

1•-R-•47m ago•0 comments

Hii

10•-R-•48m ago•5 comments

Brilliant Maps: Which Countries Censor the Internet the Most?

https://brilliantmaps.com/which-countries-censor-the-internet-the-most/
2•nephihaha•49m ago•1 comments

DoctorSV: El Salvador's health data in Google's hands

https://www.heise.de/en/news/DoctorSV-El-Salvador-s-health-data-in-Google-s-hands-11264996.html
1•catlikesshrimp•51m ago•1 comments

OpenClaw agent identified a market gap, build a validation page in 24 hours

https://www.docketapp.us/
1•isaacNd•51m ago•0 comments

MiniDisc, the Forgotten Format (2012)

https://www.theguardian.com/music/musicblog/2012/sep/24/sony-minidisc-20-years
2•alastairr•57m ago•1 comments

Six Steeds of Zhao Mausoleum

https://en.wikipedia.org/wiki/Six_Steeds_of_Zhao_Mausoleum
1•teleforce•1h ago•0 comments

The Tyranny of Structurelessness (1972)

https://www.jofreeman.com/joreen/tyranny.htm
2•downbad_•1h ago•1 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.