Alberta startup sells no-tech tractors for half price

Ursa Ag, a small Canadian manufacturer, is selling tractors with remanufactured 1990s diesel engines and no electronics for half the price of comparable machines. The company's simple, mechanical design is appealing to farmers who want to avoid modern complexity and high costs.

It's time to reclaim the word "Palantir" for JRR Tolkien

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The speaker, a former Palantir employee, argues that Palantir's tools are used for surveillance and prediction, leading to accountability loss and institutional bias. They aim to reclaim language and challenge the company's ontology, which can be used to harm people and reflect authoritarian worldviews.

Apple fixes bug that cops used to extract deleted chat messages from iPhones

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Apple fixed a bug that allowed deleted messages to be retained on iPhones due to notifications being stored in the device's database. This issue was exploited by the FBI using forensic tools, raising concerns among privacy activists about authorities accessing deleted data.

How the Heck does Shazam work?

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A phone identifies a song by breaking down sound into a three-dimensional representation called a spectrogram, which is then reduced to a set of unique "fingerprints" or hashes. These hashes are compared to a massive database of songs, allowing the phone to instantly identify the song, even in a noisy environment.

We found a stable Firefox identifier linking all your private Tor identities

https://fingerprint.com/static/893bf56cdf5a22443c3b3ace0bb862df/blog_firefox_vulnerability.jpg
A Firefox-based browser vulnerability allows websites to derive a unique identifier from IndexedDB database ordering, linking activity across origins. Mozilla has fixed the issue in Firefox 150 and ESR 140.10.0.

A True Life Hack: What Physical 'Life Force' Turns Biology's Wheels?

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A single-celled bacterium is stuck in tar-like water due to its size, but it can move using its flagellar motor, a powerful electric motor that rotates at several hundred revolutions per second. The motor is powered by the proton motive force, a driving force that powers processes in cells, and can switch directions to propel the bacterium forward or cause it to tumble.

Qwen3.6-27B: Flagship-Level Coding in a 27B Dense Model

https://qianwen-res.oss-accelerate.aliyuncs.com/Qwen3.6/Figures/3.6_27b_banner.png
Qwen3.6-27B is a 27-billion-parameter multimodal model that surpasses previous-generation models on major coding benchmarks. It is natively multimodal, supports both vision-language thinking and non-thinking modes, and is available for self-hosting and through Alibaba Cloud Model Studio API.

Borrow-checking without type-checking

https://www.scattered-thoughts.net/writing/borrow-checking-without-type-checking/box.webp
The user is designing a toy language with dynamic typing, inline values, stack allocation, interior pointers, single ownership, and a limited form of borrowing, aiming to provide the simplicity of value semantics while keeping the performance of reference semantics. The language uses reference counting to enforce mutable value semantics, with a focus on predictable performance and a simple ...

5x5 Pixel font for tiny screens

A programmer designed a 5x6 pixel font for low-resolution displays, allowing for compact layouts and easy programming. The font takes up 350 bytes of memory and is suitable for 8-bit microcontrollers.

Tempest vs. Tempest: The Making and Remaking of Atari's Iconic Video Game

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The user discussed three book-length projects about classic video games: TEMPEST vs TEMPEST, IRIDIS ALPHA THEORY, and psychedelia syndrome, which delve into the mechanics and source code of the games. The books are free to download and offer in-depth analysis of the games.

Over-editing refers to a model modifying code beyond what is necessary

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Researchers investigated the "Over-Editing" problem where AI models rewrite code unnecessarily, making it harder for humans to review and understand. They found that reinforcement learning can improve the editing behavior of AI models, making them more faithful and minimal, without degrading their general coding ability.

Flow Map Learning via Nongradient Vector Flow [pdf]

SGFlow is a method for learning flow maps that bypasses explicit invertibility constraints and expensive differentiation through model iteration, allowing for faster sampling from diffusion and flow models. SGFlow trains a model to compute both the ODE solutions and the implied velocity from scratch by following non-conservative dynamics, achieving favorable results on the CIFAR image ...

OpenAI's response to the Axios developer tool compromise

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OpenAI is updating security certificates for macOS apps due to a third-party developer library, Axios, being compromised. Users must update their apps to the latest versions by May 8, 2026, to prevent potential risks of fake apps.

Website streamed live directly from a model

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A generative visual internet

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

Verus is a tool for verifying Rust code correctness using computer-aided theorem proving. It extends Rust's syntax with new concepts for writing specifications and proofs.

Technical, cognitive, and intent debt

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The concept of Cognitive Debt, introduced by Margaret-Anne Storey, highlights three layers of system health: Technical debt in code, Cognitive debt in people, and Intent debt in artifacts. As LLMs become more prevalent, experts like Ajey Gore and David Cassel discuss the need for verification and reorganization around judging the output of LLMs rather than solely focusing on writing code.

Ping-pong robot beats top-level human players

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Scoring Show HN submissions for AI design patterns

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User analyzed 500 Show HN pages for AI design patterns, finding 21% with heavy slop, 46% mild, and 33% clean. The results suggest most sites are uninspired rather than AI-generated.

The handmade beauty of Machine Age data visualizations

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William James, a psychologist and philosopher, was a talented visual artist who contributed to the development of data visualization in the 19th century. His work, along with that of Francis Galton and W.E.B. Du Bois, highlights the importance of handmade data visualization and the role of creativity in thinking.

Parallel agents in Zed

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Zed now allows parallel agent orchestration with a new Threads Sidebar for control and monitoring. The Threads Sidebar offers instant access to common operations and helps developers stay organized with multiple projects and agents.

Another Day Has Come

Tim Cook is stepping down as Apple's CEO after 15 years, handing over to John Ternus, who has been with the company for 25 years. Cook will become executive chairman, focusing on politics and policy, while Ternus takes the helm of Apple's business.

Bring your own Agent to MS Teams

https://microsoft.github.io/teams-sdk/img/teams.png
The Teams TypeScript SDK allows you to integrate your existing HTTP server with Teams by registering a messaging endpoint and handling incoming requests. The SDK provides a pattern for integrating with Express, LangChain, and Azure Foundry, and can be used with other HTTP servers and frameworks.

Ultraviolet corona discharges on treetops during storms

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Penn State researchers led by William Brune documented corona discharges in nature for the first time, observing them on trees during thunderstorms in Florida. The phenomenon, which cleans the air by producing hydroxyl, was captured using a custom-built telescope system and has implications for forest health and atmospheric cleansing.

Effectful Recursion Schemes

The user discusses implementing recursion schemes in Effekt, a functional programming language, using effects and handlers instead of infinite recursive types. They showcase various examples of catamorphisms, anamorphisms, and hylomorphisms in Effekt, including a refunctionalized variant of a Term data structure and its applications.

The Neon King of New Orleans

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Nate Sheaffer, a neon artist, saves New Orleans' historic signs by refurbishing and designing new pieces at his shop Big Sexy Neon. He uses century-old techniques to create sustainable and long-lasting neon art, preserving the city's unique aesthetic.

What killed the Florida orange?

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Florida's citrus industry is facing a severe crisis due to the citrus greening disease, which has infected 100% of the state's trees. The industry is also struggling with drought, tariffs, and hurricanes, leading to a decline of over 95% in orange production.

Approximating Hyperbolic Tangent

https://jtomschroeder.com/svg/tanh-plots.svg
The hyperbolic tangent function tanh is approximated using various methods including Taylor series, Padé approximants, splines, and bitwise manipulation techniques like K-TanH and Schraudolph to achieve fast and accurate results. These methods are particularly useful in neural networks and audio signal processing where speed and accuracy are crucial.

Workspace Agents in ChatGPT

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Workspace agents are shared AI tools that handle complex tasks and workflows within an organization's permissions and controls. They can be built and customized to automate tasks, gather context, and follow team processes, freeing up time for higher-value work.

The Illuminated Man: an unconventional portrait of JG Ballard

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Christopher Priest's biography of JG Ballard explores the writer's unique vision shaped by his childhood in Shanghai and experiences in a Japanese prisoner-of-war camp. Priest's work, completed by his partner Nina Allan, provides a complex and poignant account of Ballard's life and work.

Bodega cats of New York

https://bodegacatsofnewyork.com/hero/hero-tuxedo-aisle.jpg
The book documents New York City's bodega cats, highlighting their unique personalities and contributions to their stores. Advocacy efforts aim to legalize bodega cats, with two bills in committee and a petition signed by 14,000 people.