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Resurrecting a Lost Piece of Apple History: The Performa 550's Secret Recovery Partition

2025-03-16

While rescuing data from a failing hard drive in an old Apple Performa 550, the author uncovered a hidden recovery partition containing a fascinating piece of Apple's software history. This partition, designed to boot in case of system failure, allowed users to reinstall the OS. A three-year quest involving online appeals culminated in finding a pristine hard drive, revealing the partition's mechanics and leading to the sharing of its image. This compelling story highlights the thrill of tech archeology and software preservation.

(www.downtowndougbrown.com)

Tech tech archeology hard drive recovery

Artificial Leaf Converts CO2 to Usable Fuel Using Sunlight

2025-04-24

Artificial Leaf Converts CO2 to Usable Fuel Using Sunlight

Researchers have created a postage-stamp-sized artificial leaf that converts CO2 into C2 molecules using sunlight. Unlike previous biological approaches, this device utilizes an inorganic material, copper, for enhanced durability and stability. The device, composed of a photoanode and photocathode, facilitates an organic oxidation reaction and C2 product creation. These C2 chemicals are precursors for various industrial products, including plastics and airplane fuel. Future work focuses on increasing efficiency and scalability.

(newscenter.lbl.gov)

Tech artificial photosynthesis CO2 conversion

30 Lines of Code Slash Data Center Energy Consumption by Up to 30%

2025-04-21

30 Lines of Code Slash Data Center Energy Consumption by Up to 30%

Researchers from the University of Waterloo have achieved up to a 30% reduction in energy consumption in data centers by tweaking how the Linux kernel handles network traffic. They cleverly adjusted the kernel's handling of network packets, reducing unnecessary polling during low network traffic periods, thus saving CPU resources. This improvement has been integrated into Linux kernel version 6.13 and is expected to yield significant energy savings in data centers that widely use Linux. The researchers call for the industry to focus on software efficiency and sustainability, reviving the importance of resource conservation.

(spectrum.ieee.org)

Tech Energy Optimization

Sparse Interpretable Audio Codec: Towards a More Intuitive Audio Representation

2025-02-01

This paper introduces a proof-of-concept audio encoder that aims to encode audio as a sparse set of events and their times of occurrence. It leverages rudimentary physics-based assumptions to model the attack and physical resonance of both the instrument and the room, hopefully encouraging a sparse, parsimonious, and easy-to-interpret representation. The model works by iteratively removing energy from the input spectrogram, producing event vectors and one-hot vectors representing time of occurrence. The decoder uses these vectors to reconstruct the audio. Experimental results show the model's ability to decompose audio, but there's room for improvement, such as enhancing reconstruction quality and reducing redundant events.

(blog.cochlea.xyz)

AI audio coding

Faster Java Startup with AOT Cache Profile Improvements

2025-05-11

This improvement significantly reduces Java application warmup time by collecting method execution profiles during application training runs and storing them in the AOT cache. At startup in production, the JIT compiler can immediately use these profiles to generate native code, eliminating the wait for profile collection and resulting in faster startup and peak performance. This technique requires no code changes and is compatible with existing AOT cache creation commands. Experiments show a 19% reduction in warmup time for a simple example program.

(openjdk.org)

Development AOT cache

The Resurrection of Rotifers: A Biological and Philosophical Enigma

2025-04-19

The Resurrection of Rotifers: A Biological and Philosophical Enigma

In the late 1600s, Antonie van Leeuwenhoek discovered rotifers, microscopic organisms capable of reviving after desiccation. This sparked a centuries-long scientific and philosophical debate. Research has uncovered the mechanisms behind their survival: rotifers produce LEA proteins to protect cell membranes and repair DNA damage after dehydration. However, their 'revival' isn't a simple binary of life and death, but a unique state challenging the traditional dichotomy. This discovery pushes the boundaries of biology and prompts profound questions about the very nature of life itself.

(nautil.us)

Tech rotifers desiccation definition of life

Cilla's Low-Budget OB Inserts

2025-04-22

This new series of Cilla featured OB inserts produced cheaply, often piggybacking on other, usually sports, OBs in nearby locations. For example, the crew would film a sports event in Worcester and then immediately film Cilla inserts in the same location. Cilla would announce live that cameras were in a specific street, inviting residents to come out and say hello. The result was a floodlit street, PA system, and live interviews, all achieved with a remarkably low budget.

(mcr21.org.uk)

Misc TV production low-budget production live broadcast

BQN Matrix Multiplication Performance Optimization: Cache Blocking and Divide and Conquer

2025-06-27

This article explores optimizing large matrix multiplication performance using the BQN language. The author first uses a simple square partitioning method to effectively utilize cache, achieving a speedup of about six times. Then, a Strassen algorithm based on a divide-and-conquer strategy is introduced and experimentally shown to achieve up to a 9x speedup on large matrices. The article also compares the performance impact of different block sizes and nested tiling strategies, concluding that the performance limit of a pure, single-threaded BQN implementation has essentially been reached.

(panadestein.github.io)

Development

CAPTCHA is Dead: The Ticketing Industry's Bot War

2025-05-25

Ticketing websites face a persistent challenge: bots used by scalpers to snatch tickets. Traditional CAPTCHAs, such as image and audio recognition, have been defeated by advanced machine learning. Behavior-based anti-bot technologies, while effective, compromise user privacy; while proof-of-work methods are too inexpensive for scalpers. The author proposes a "BAP theorem," stating that anti-bot systems can only satisfy two out of three properties: "bot-resistance," "accessibility," and "privacy." Ultimately, websites must choose between high privacy and high security; technical solutions alone are insufficient. Legislation and social approaches might be more effective.

(behind.pretix.eu)

Tech anti-bot ticketing

Hyperion: The Tallest Tree's Secret and Its Protection

2025-03-16

Hyperion: The Tallest Tree's Secret and Its Protection

Hyperion, a coast redwood in California, stands as the world's tallest known living tree, measuring 116.07 meters (380.8 ft). Discovered in 2006, its exact location remained a secret until the Redwood National Park closed the area due to habitat destruction caused by excessive visitors. The park now issues hefty fines and potential jail time to those who get too close to the approximately 600-800 year old giant, highlighting the delicate balance between appreciating nature's wonders and protecting its fragile ecosystems.

(en.wikipedia.org)

Misc redwood world's tallest tree

Ann: A Decentralized Annotation Server for Empowering Applications

2025-05-20

Ann is a minimal ActivityPub-based decentralized social media built around Web Annotations, essentially comments, recommendations, or likes on any content. It's not a standalone webpage, but a server designed for integration with other applications. Imagine comment sections in Gemini browsers, private research paper annotation systems, article recommendation feeds, browser plugins for adding and viewing comments across the web, or even AI training datasets. Ann's vision is a web independent of JavaScript and trackers, empowering applications with annotation capabilities, giving users choice, privacy, and control over their content consumption.

(mccd.space)

Development web annotation

OpenTelemetry Performance Overhead: A Go Application Benchmark

2025-06-16

OpenTelemetry Performance Overhead: A Go Application Benchmark

This post benchmarks the performance overhead of OpenTelemetry in a high-load environment using a simple Go HTTP server. Results show approximately a 35% increase in CPU usage, a small increase in memory, and significant network traffic increase when enabling OpenTelemetry. The author compares using the OpenTelemetry SDK with eBPF-based monitoring, finding the latter to be significantly more lightweight in high-load scenarios, especially when only collecting metrics. The conclusion is that OpenTelemetry's overhead isn't prohibitive, but choosing the right monitoring approach is crucial, requiring a trade-off between performance and observability based on specific needs.

(coroot.com)

Development

OpenAI Eyes Chrome Acquisition Amidst Google Antitrust Case

2025-04-23

OpenAI Eyes Chrome Acquisition Amidst Google Antitrust Case

OpenAI's head of product, Nick Turley, testified that the company would be interested in acquiring Chrome if Google is forced to divest, Reuters reports. This comes as part of the US Department of Justice's antitrust case against Google. OpenAI previously attempted to partner with Google to integrate its search technology into ChatGPT but was unsuccessful. Currently, OpenAI is building its own search index, but progress is slower than initially anticipated.

(www.theverge.com)

Tech

Zero-Cost, Minimalist Blogging: Obsidian, Hugo, and Cloudflare Pages

2025-04-23

I've switched to Obsidian for all my writing, and combined it with Hugo and Cloudflare Pages for a completely free blogging setup. Obsidian's local-first model and minimal theme keep writing focused and efficient; iCloud syncs notes across devices seamlessly; Hugo and the Bear theme provide a fast, minimal website; and GitHub and Cloudflare Pages offer free, reliable deployment. This gives me complete control – no subscriptions, no vendor lock-in. Setting up requires some technical knowledge, but the result is a frictionless publishing workflow.

(ingau.me)

Development

Native PyTorch Now Available for Windows on Arm

2025-04-24

Native PyTorch Now Available for Windows on Arm

Microsoft has released native Arm64 builds of PyTorch 2.7 for Windows on Arm, eliminating the need for manual compilation. This significantly simplifies the process for developers working with machine learning on Arm-powered devices. The release allows for straightforward installation using pip, unlocking the full performance potential of Arm64 architecture for tasks like image classification, natural language processing, and generative AI. While some dependencies may require manual compilation, Microsoft provides clear instructions and examples. This update is a major step forward for the Windows on Arm ecosystem.

(www.neowin.net)

AI

Open Codex: A Local, Open-Source AI Command-Line Assistant

2025-04-21

Open Codex: A Local, Open-Source AI Command-Line Assistant

Open Codex is a fully open-source command-line AI assistant inspired by OpenAI Codex, running locally without needing an API key. It leverages local language models like phi-4-mini for natural language to shell command translation. Features include one-shot and interactive modes (coming soon), command confirmation, clipboard support, colored terminal output, and cross-platform compatibility (macOS, Linux, Windows).

(github.com)

Development local model

The Electromagnetic History of Firesign Theatre: A Psychedelic Trip Through Counterculture Comedy

2025-04-25

The Electromagnetic History of Firesign Theatre: A Psychedelic Trip Through Counterculture Comedy

This review of Jeremy Braddock's new book, *Firesign: The Electromagnetic History of Everything as Told on Nine Comedy Albums*, explores the groundbreaking American comedy troupe Firesign Theatre. Active during the 1960s and 70s, they created a series of influential albums using advanced recording techniques and surreal humor, reflecting the counterculture movement. The review draws parallels between Firesign Theatre and the Beatles, analyzes their critiques of media, politics, and technology, and examines the lasting appeal of their work in the digital age. Their unique blend of experimental audio and sharp social commentary continues to resonate with fans decades later.

(lareviewofbooks.org)

Misc Firesign Theatre Counterculture Comedy Audio Collage

Index: The SOTA Open-Source Browser Agent for Autonomous Web Tasks

2025-04-23

Index: The SOTA Open-Source Browser Agent for Autonomous Web Tasks

Index is a state-of-the-art open-source browser agent capable of autonomously executing complex web tasks. It leverages powerful LLMs like Anthropic's Claude and OpenAI's models, allowing users to issue prompts such as "go to ycombinator.com, summarize the first 3 companies in the W25 batch and make a new spreadsheet in Google Sheets." Index offers a serverless API for production use, an interactive CLI for local development, browser state persistence, and more. Its ease of use and powerful features make it ideal for automating web data extraction and complex web interactions.

(github.com)

Development Browser Agent

Parmigiano-Reggiano Tapping Masters: A Centuries-Old Craft

2025-04-10

Parmigiano-Reggiano Tapping Masters: A Centuries-Old Craft

In Emilia-Romagna, Italy, 37-year-old Alessandro Stocchi apprenticed under 81-year-old Renato Giudici to learn the art of Parmigiano-Reggiano tapping (battitore). This ancient craft isn't taught in formal courses; Alessandro learned through three years of hands-on experience, assessing each wheel of cheese. The tapping master requires immense responsibility and skill, as any mistake can damage the precious cheese. This craft, passed down through generations, remains unchanged for two centuries, demonstrating a commitment to tradition.

(www.cheeseprofessor.com)

Misc tradition Parmigiano-Reggiano

From Zero to Hero: My Vim Journey and Why You Should Try It Too

2025-04-24

From Zero to Hero: My Vim Journey and Why You Should Try It Too

A seasoned developer recounts his transition from traditional text editors to Vim. Initially intimidated by Vim's shortcuts, he discovered the 'Vim language' – a system of keybindings that dramatically boosted his efficiency. Mastering Vim motions and commands allowed precise, rapid text editing, extending these gains to writing and browsing. While acknowledging the steep learning curve, the author argues that Vim's payoff is substantial, making it worthwhile for any developer.

(www.ssp.sh)

Development

Graceful Shutdown in Go: Best Practices

2025-05-04

Graceful Shutdown in Go: Best Practices

This article delves into best practices for implementing graceful shutdowns in Go. By catching SIGTERM and SIGINT signals, leveraging the context package, and utilizing http.Server.Shutdown, the article demonstrates how to smoothly stop a service, preventing data loss and resource leaks. It covers signal handling, timeout mechanisms, stopping new requests, handling pending requests, and releasing critical resources, providing a complete example to help developers build robust and reliable Go applications.

(victoriametrics.com)

Development graceful shutdown

Go's Surprising Memory Allocation Trap: A 30% Regression Story

2025-04-21

Go's Surprising Memory Allocation Trap: A 30% Regression Story

A seemingly innocuous refactoring in a Go project led to a 30% performance regression. The culprit was the `GetBytes` method of the `ImmutableValue` struct, which used a value receiver, causing a heap allocation on every call. Heap allocations are significantly more expensive than stack allocations. The root cause was the Go compiler's escape analysis being imprecise; it failed to recognize that the value receiver wouldn't escape. Switching to a pointer receiver fixed the problem. This case highlights the importance of understanding the Go compiler's memory allocation decisions and using appropriate receiver types for high-performance Go code.

(www.dolthub.com)

Development

Trump's Tariffs: A Self-Inflicted Economic Wound?

2025-04-09

Trump's Tariffs: A Self-Inflicted Economic Wound?

This article analyzes the damaging effects of the Trump administration's protectionist trade policies, particularly the 'liberation day' tariffs, on American manufacturing. The author argues these tariffs stem from a misunderstanding of the Chinese economy and short-sighted strategy, rather than genuine national security concerns. Drawing on Clayton Christensen's theory of disruptive innovation, the article explains the decline of American manufacturing as a result of technological advancements and global competition. The author criticizes the government's attempt to revive domestic manufacturing through tariffs, deeming it inefficient and potentially harmful to national security interests. The article concludes with a call for more effective strategies beyond trade wars.

(stratechery.com)

Tech

The Armatron: From 90-Degree Rotation to 360-Degree Freedom

2025-04-20

The Armatron: From 90-Degree Rotation to 360-Degree Freedom

Hiroyuki Watanabe, the inventor of the Armatron robotic arm, initially drew inspiration from a newspaper clipping depicting a mechanical arm. However, the first prototype could only rotate 90 degrees and had a complex control panel. Watanabe's hobby of flying radio-controlled helicopters provided the breakthrough; he designed a system allowing 360-degree rotation and simpler controls, resulting in a toy classic.

(www.technologyreview.com)

Design Toy Design Robotic Arm Product Innovation

1888: The World's First True Electric Car

2025-01-21

1888: The World's First True Electric Car

In 1888, Andreas Flocken, a German engineer, created the world's first true electric car, the Flocken Elektrowagen, at his Maschinenfabrik A. Flocken in Coburg. This four-wheeled vehicle, initially resembling a horse-drawn carriage, was powered by an electric motor and could reach a top speed of 15 km/h. While early technology limited its performance, the Flocken Elektrowagen holds immense historical significance as a landmark in the dawn of the electric car era.

(en.wikipedia.org)

Tech electric car Germany

Blazing Fast Zig Parser: 2.75x Speedup

2025-04-16

Blazing Fast Zig Parser: 2.75x Speedup

A developer has created a high-throughput tokenizer and parser for the Zig programming language that's 2.75x faster and uses 2.47x less memory than the mainline implementation. The project leverages SIMD and SWAR techniques, along with clever bit manipulation and perfect hash functions, to achieve significant performance gains. Further optimizations are planned, with the ultimate goal of integrating this parser into the Zig compiler itself.

(github.com)

Development

Microsoft's C/C++ Extension Breaks VS Code Forks, Sparks Antitrust Concerns

2025-04-24

Microsoft's C/C++ Extension Breaks VS Code Forks, Sparks Antitrust Concerns

Microsoft's recent update to its Visual Studio Code C/C++ extension has broken compatibility with derivative products like VS Codium and Cursor, prompting outrage from developers. The move is seen as anti-competitive, as Microsoft restricts its extension's use outside its own products while simultaneously promoting its own AI coding assistant, Copilot. Developers have filed complaints with the US Federal Trade Commission, alleging unfair competition through bundling Copilot, blocking rivals like Cursor, and locking users into its AI ecosystem. Cursor is reportedly transitioning to open-source alternatives.

(www.theregister.com)

Development

Chang'e 6 Finds Moon's Far Side Surprisingly Dry

2025-04-12

Chang'e 6 Finds Moon's Far Side Surprisingly Dry

Analysis of lunar samples returned by China's Chang'e 6 mission suggests the far side of the moon may be drier than the near side. Scientists examined 578 particles from the South Pole-Aitken basin, estimating water abundance at less than 1.5 micrograms per gram—lower than previous near-side findings. While more samples are needed for conclusive evidence, the dryness could be linked to the basin's formation or variations in water distribution. This finding is unlikely to significantly alter NASA's plans to land astronauts near the lunar south pole, where abundant water ice is expected to support future missions.

(apnews.com)

Tech Lunar Exploration Chang'e 6 Lunar Water

Courtroom Sketches: A Dying Art in the Age of Cameras?

2025-09-24

Courtroom Sketches: A Dying Art in the Age of Cameras?

The UK's ban on photography in courts dates back to 1922, but courtroom sketching persists. This article explores how courtroom artists capture fleeting moments and how their work remains a vital part of news reporting. It compares different artistic styles and analyzes the pros and cons of allowing cameras in court, considering the impact on court transparency and public understanding of legal processes. Courtroom sketching is not merely art; it's a historical record, offering a unique perspective on the intersection of law and art. Concerns over responsible camera use and maintaining the solemnity of the court are also addressed.

(www.itsnicethat.com)

Misc courtroom sketching

AI Companions: Solving Loneliness or Creating a New Problem?

2025-04-23

AI Companions: Solving Loneliness or Creating a New Problem?

Harvard Business School research suggests AI chatbots can alleviate loneliness. However, this raises concerns: are we repeating a pattern of solving one problem by creating a potentially worse one? Similar to how fast food addressed hunger but led to obesity, AI companions might offer convenient companionship, but they can't replace genuine human interaction, potentially leading to addiction and social skill degradation. The suicide of a 14-year-old boy due to excessive reliance on an AI chatbot serves as a stark warning. We need to address the root causes of social isolation, investing in community building and human interaction, rather than relying on technology to fill the emotional void.

(peakhorse.substack.com)

AI

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