The bottleneck might be the air in the room

https://files.mikebowler.ca/images/co2_reading.png
High-stakes meetings in poorly ventilated rooms can impair decision-making due to high CO2 levels. A CO2 monitor can help identify and fix this issue, which is often overlooked and can be as simple as opening a window.

Astrophysicists Puzzle over Webb's New Universe

https://www.quantamagazine.org/wp-content/uploads/2026/07/JWSTUpdate-crKristinaArmitage-Lede-scaled.webp
Astrophysicist Charlotte Mason and colleagues are studying "little red dots" discovered by the James Webb Space Telescope, which may be black holes or a new type of object. Researchers are exploring various theories to explain the dots' existence and the universe's early mysteries.

Mir Books – Books from the Soviet Era

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The book is a narrative by geologist Ekaterina Radkevich about her expeditions and research on Earth and its resources. It completes the Science for Everyone Series, a collection of scientific knowledge for the general public.

Performance per dollar is getting faster and cheaper

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AMD's Instinct MI350 series offers cheaper GPUs with comparable specs to NVIDIA's Blackwells, but lacks day-0 support for frontier models. With optimization and tweaks, AMD can achieve competitive performance per dollar, closing the gap with NVIDIA, but still requires more support and development.

Leanstral 1.5: Proof abundance for all

https://mistral.ai/_astro/Leanstral-charts_Z1P0BDJ.webp?dpl=6a47cdd357510b0008482aed
Leanstral 1.5 is a free, open-source model that delivers a performance upgrade for formal verification, achieving a new state-of-the-art on FATE-H/X and PutnamBench. It verifies complex code properties and uncovers previously unknown bugs in open-source repositories.

Maybe you should learn something

Learning new things is fun and makes life richer, but it requires a daily time investment of up to an hour. It's a long journey with initial struggles, but consistent practice leads to improvements over time.

Postgres data stored in Parquet on S3: LTAP architecture explained

https://www.databricks.com/sites/default/files/inline-images/monolithv2.png
The author, a co-founder of Databricks, discusses how traditional OLTP databases are clunky, difficult to scale, and fragile, and proposes a new architecture called Lakebase that externalizes storage and compute, making databases more durable, elastic, and cheaper to run. Lakebase's design also enables a new feature called LTAP, which unifies transactional and analytical workloads by storing ...

Giant trees have no trouble pumping water to top branches: new research

https://news.exeter.ac.uk/wp-content/uploads/2026/07/A-57m-tall-Dipterocarp-tree-with-a-double-rope-technique-DRT-rigged-for-canopy-access.-Credit-Palasiah-Jotan-x-1024x550.jpg
New research reveals that the world's tallest tropical trees can pump water to their topmost branches without difficulty. The study found that these trees' water systems are perfectly adapted to their height, making them no more vulnerable to drought than shorter trees.

Agentic coding notes from Galapagos Island

The user discusses their experience with AI and testing, highlighting the benefits of using AI to generate tests and the limitations of relying solely on LLMs for testing. They propose a testing methodology that combines fuzzing, randomized testing, and human review to achieve high-quality results, and discuss the importance of feedback loops and independent perspectives in reducing false positives.

Steam Controller Auto-Charge – pilot to magnetic charging puck using CV

https://opengraph.githubassets.com/2d7d83b385db4cbd78ec95a023ceb8335b975486efecea13c2de773b0b1bf14f/FossPrime/Steam-Controller-Auto-Charge
Steam Controller Auto-Charge is an open-source app that automatically charges a Steam Controller using computer vision and WebHID telemetry. It uses optical flow tracking, haptic navigation, and battery status polling to guide the controller to its charging puck.

MSI Center – How to gain SYSTEM privileges in seconds

The user discovered a severe vulnerability in MSI Center, a pre-installed software on MSI laptops and desktops, allowing for Remote Code Execution (RCE) with valid login credentials. MSI patched the vulnerability within two days and the user is still waiting for a CVE from VulDB after submitting their report.

Ship traces journey Spanish Armada sailors made in 1588

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It is no surprise that those seafaring forebears of the ill-fated Spanish Armada of 1588 were on the mind of Captain Miguel Cuesta Almansa of the Galeón Andalucía as his craft rolled in heavy seas around Malin Head and down the Co Donegal coastline early on Tuesday morning. But the sea god, Manannán Mac Lir, was clearly in a benevolent mood as the waves relented and the sun began to shine on ...

FreeBSD ate my RAM

https://crocidb.com/post/freebsd-ate-my-ram/images/Pastedimage20260701210436.png
The user investigated why memory usage reported by fastfetch and btop differed on FreeBSD, discovering that the discrepancy was due to btop's incorrect handling of the ARC cache and filesystem metadata buffer cache. The user contributed patches to btop and htop to improve their memory usage reporting, and also submitted a PR to fastfetch, which was later merged with improvements.

SearXNG: A free internet metasearch engine

https://raw.githubusercontent.com/searxng/searxng/master/client/simple/src/brand/searxng.svg
SearXNG is a free internet metasearch engine which aggregates results from various search services and databases. Users are neither tracked nor profiled. - searxng/searxng

Jamesob's guide to running SOTA LLMs locally

https://raw.githubusercontent.com/jamesob/local-llm/master/images/rig.png
User has $2k to spend on local machine intelligence and $40k for top-of-the-line. They have 4x RTX Pro 6000s and built a DDR4 system to host them.

Synthesis is harder than analysis

https://surfingcomplexity.blog/wp-content/uploads/2026/07/image-6.png?w=823
Calculus has two main branches: differential calculus, which calculates the slope of a function, and integral calculus, which calculates the area under a curve. The two are connected by the Fundamental Theorem of Calculus, which states that integrals are anti-derivatives, but integral calculus is generally harder than differential calculus due to its global nature.

The Scanline Sweeper: A Glyph Rendering Algorithm [pdf]

The Scanline Sweeper is a GPU-based Bézier curve rasterization algorithm that estimates coverage analytically without computing explicit winding numbers or tessellation, resulting in a numerically robust algorithm. It operates on glyph curves directly on the GPU, integrating signed areas swept by each curve intersecting the scanline of interest to produce an anti-aliased result for a single ...

The firefighting system of the Van der Heyden brothers in 17th century Amsterdam

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Amsterdam's fire-fighting system improved in the 17th century with the introduction of new engines and a culture of inventiveness. The city's fire damage decreased dramatically after implementing the Van der Heyden brothers' suction and pressure hoses.

Soatok's Informal Guide to Threat Models

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The user discusses the importance of threat modeling in cybersecurity, explaining that it's a formal process that helps identify potential threats and vulnerabilities in a system, and provides a framework for understanding assumptions and accepted risks. They also apply threat modeling to real-world examples, including hybrid post-quantum cryptography and end-to-end encrypted messaging apps, ...

Odin, Wikipedia and engagement farming

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GingerBill, the creator of the Odin programming language, expressed concerns about Wikipedia's deletion of the Odin article due to lack of reliable sources, but his tone shifted from dismissive to concerned after Casey Muratori, a famous videogame programmer, pointed out the flaws in Wikipedia's notability rules for programming languages. Casey argued that Wikipedia's rules prioritize ...

New serious vulnerabilities spiked around release of Claude Mythos Preview

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Anthropic and OpenAI announced efforts to use frontier models for cybersecurity, but this led to a significant increase in high-severity vulnerabilities. The number of high- and critical-severity CVEs jumped 3.5x in June after the announcements.

Show HN: Morph Reflexes – Multi-head classifiers for agent traces

Reflexes is a fast and cheap API for semantic signals from agent traces, built on a custom inference engine and small LLM models. It allows tracking of user frustration rates and other signals over time, scaling to tens of thousands of agent runs and millions of turns.

Show HN: Classify mechanical faults using Contrastive Language-Audio Pretraining

https://opengraph.githubassets.com/79cf5e5395abc2821b980c5890e313f280f309258c644e2eb642408a2fc45826/adam-s/car-diagnosis
cardiag is a proof-of-concept audio-ML pipeline for car fault diagnosis from phone recordings. It provides a calibrated triage aid with honest uncertainty, isolating mechanical sounds and ranking likely parts.

Gone but Not Forgotten: Recovering the Dead Web

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The Pew Research Center study found that 38% of webpages from 2013 are no longer accessible, but the Wayback Machine has rescued roughly 15% of those dead pages. Web archives like the Wayback Machine play an increasingly important role in rescuing the dead Web and minimizing the fracture of the knowledge graph on the Web.

Costco is the anti-Amazon

https://phenomenalworld.org/wp-content/uploads/2026/06/pexels-photo-4030670-scaled.avif
Amazon's complex logistics model may not be the most efficient or socially beneficial, while Costco's simpler model offers lower costs and better worker treatment. A public grocery store model, inspired by Costco and the military commissary system, could provide cheaper groceries for New Yorkers with lower overhead.

Study reveals what people see when they read lips

https://news-archive-assets.ku.edu/data/16/25/01kwcanktnypf3bxa78q1h0aqm.jpg
Researchers at the University of Kansas used network science to study lip reading mistakes, creating a visual map of 20,000 English words to improve training for lip readers and AI. The study found lip-reading errors occur when visually similar words occupy the same region in the visual network, affecting accuracy.

David Beazley – Programming Courses

The author taught project-based programming courses from 2007-2023 but had to stop due to a collapse in the continuing education market. They're now pursuing a Professional Educator's License in Secondary Education.

Applied Category Theory Course (2018)

This is a course based on Fong and Spivak's book Seven Sketches in Compositionality: An Invitation to Applied Category Theory, taught by John Baez and turned into nice webpages by Simon Burton. © 2018 John Baez

Factories are just rooms

https://interconnected.org/home/2026/07/03/factories.png?v=1
You spoke to a year group about manufacturing, sharing your experience making an AI clock and showing them various stages of design and production. You aim to normalize hands-on learning and inspire kids to become makers and inventors.

Reverse-engineering Codemasters' BIGF archive format in Ruby

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Ruby is used for reverse-engineering a binary file format, specifically Codemasters' BIGF archive format, with its standard library providing a fast and efficient binary parser. The parser uses String#unpack and Ruby strings as byte buffers to decode the binary data, making it a pleasant and effective collaboration with an AI.