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Spice of Life, Lead in Death: Unmasking a Global Lead Poisoning Crisis

2025-07-12

Spice of Life, Lead in Death: Unmasking a Global Lead Poisoning Crisis

A decades-long public health crisis of lead poisoning affecting millions of children worldwide has finally begun to see significant progress. A New York City detective specializing in toxic element exposure and a California PhD student, through painstaking investigation across continents, uncovered the source of a high rate of lead poisoning in Bangladeshi children: lead chromate added to turmeric to enhance its color. Their findings prompted swift action by the Bangladeshi government, drastically reducing lead levels. This success story, however, highlights the broader global problem, demanding continued international cooperation to tackle the pervasive presence of lead in various consumer products.

(www.npr.org)

Tech lead poisoning Bangladesh

Listening to the Baltic States' Grid Switch with an Audio Cable

2025-07-12

Over the weekend of February 8th, 2025, the Baltic states' electricity grid switched from the Russian grid to the continental European grid. The author, inspired by a curious idea, used a PC's audio input and a simple audio cable as a makeshift sensor. By employing an FFT algorithm to analyze the 50Hz frequency component in the audio signal, they successfully monitored the grid synchronization process. Despite the unconventional approach, the results were surprisingly accurate, closely matching professional monitoring data, demonstrating a creative solution to a unique problem.

(halcy.de)

Tech grid synchronization

Introduction to Digital Filters with Audio Applications

2025-07-12

This comprehensive textbook provides a thorough introduction to digital filters and their applications in audio processing. Starting with the simplest lowpass filter, it progressively covers the theoretical foundations, design methods, and implementation techniques of various filter types, including linear time-invariant (LTI) filters, finite impulse response (FIR) filters, infinite impulse response (IIR) filters, and diverse filter structures and implementations. The book includes numerous Matlab and Faust code examples, along with rich audio application case studies, making it ideal for students and researchers in digital signal processing and audio engineering.

(ccrma.stanford.edu)

Development digital filters

AWS Free Tier Overhaul: Credit-Based System Arriving July 15, 2025

2025-07-12

AWS Free Tier Overhaul: Credit-Based System Arriving July 15, 2025

AWS is dramatically changing its Free Tier starting July 15, 2025. The 12-month free trial is being replaced with a credit-based system offering up to $200 in credits for new users, earnable through various activities. However, this comes with limitations: a maximum 6-month duration, automatic account closure after expiration, and restricted service access. Existing users are unaffected. New users should create accounts before July 15th for the 12-month free tier, or after that date, carefully choose between the Free and Paid plans, monitoring credit usage to avoid account closure.

(freetier.co)

Tech Credit System

My M1 Pro MacBook Pro Fan Replacement: Cooler Temps, But No More Touch ID

2025-07-12

My M1 Pro MacBook Pro Fan Replacement: Cooler Temps, But No More Touch ID

After four years, the author's M1 Pro MacBook Pro started making excessive fan noise. Attempting a thermal paste replacement, they accidentally damaged the fan and Touch ID sensor cable. While the fan was successfully replaced, resulting in lower CPU temperatures and fan speeds, plus a slight performance boost, the Touch ID functionality is permanently lost. The author cautions against attempting this repair unless experienced with delicate electronics.

(christianselig.com)

Hardware

Psychedelic Compound Shows Promise in Extending Lifespan

2025-07-12

Psychedelic Compound Shows Promise in Extending Lifespan

Emory University researchers have discovered that psilocybin, the active compound in psychedelic mushrooms, significantly delays cellular aging and extends lifespan. In a preclinical study, psilocybin increased the lifespan of human cells by over 50% and boosted survival rates in aged mice by 30%. The compound's benefits appear linked to reduced oxidative stress, improved DNA repair, and telomere preservation. This groundbreaking research suggests psilocybin could revolutionize anti-aging therapies, potentially enhancing both lifespan and quality of life in older populations.

(neurosciencenews.com)

Tech cellular longevity

M4 Pro Mac mini 4TB SSD Upgrade: Speed vs. Cost

2025-07-12

The author upgraded their studio's M4 Pro Mac mini from a 512GB SSD to a 4TB SSD. The upgrade process was relatively straightforward, but removing the bottom cover required care to avoid damaging the power button connector. A DFU restore was necessary, achievable with Macs containing a T2 chip. Performance tests showed the upgraded 4TB SSD had significantly faster write speeds and comparable read speeds to an external Thunderbolt 5 NVMe drive, but with greater consistency. While expensive ($699), it's significantly cheaper than Apple's $1200 option.

(www.jeffgeerling.com)

Hardware Mac mini upgrade SSD upgrade

Rice Rebels: Study Shows Grain's Surprising Brewing Benefits

2025-07-12

Rice Rebels: Study Shows Grain's Surprising Brewing Benefits

New research challenges the long-held belief that rice is unsuitable for beer brewing. Studies show rice significantly improves flavor profiles, increases extract yield, shortens fermentation time, and may extend shelf life. This aligns with Arkansas legislation incentivizing the use of locally grown rice in beer and sake production. The research also reveals that different rice varieties impact beer flavor and brewing efficiency differently, opening up new possibilities for brewers and potentially lowering costs and improving sustainability.

(phys.org)

Tech beer brewing brewing process

Python's Dark Magic: Dict Unpacking Library

2025-07-12

Python's Dark Magic: Dict Unpacking Library

A Python library called `dict-unpacking-at-home` provides dictionary unpacking, allowing you to unpack dictionaries directly like this: `{greeting, thing} = dct`. While cool, the author claims it's not a critical library and the current version breaks line numbers in stack traces. A fix exists, but at a cost... With almost a million downloads per month and 30M+ total downloads, many people are using this seemingly unreliable library.

(github.com)

Development dictionary unpacking dark magic

Deep Dive into CLR Garbage Collection

2025-07-12

Deep Dive into CLR Garbage Collection

This article provides a comprehensive overview of garbage collection (GC) within the Common Language Runtime (CLR). The GC acts as an automatic memory manager, handling memory allocation and release for managed code, freeing developers from manual memory management and preventing issues like memory leaks. It details core GC concepts, memory management principles, allocation and release processes, generational garbage collection strategies (Gen 0, 1, 2, and the Large Object Heap), trigger conditions, phase breakdowns, and handling unmanaged resources. The article explains how the GC optimizes memory usage by dividing the heap into generations based on object lifespan, improving efficiency by focusing on shorter-lived objects first.

(learn.microsoft.com)

Development

Reverse Proxy Deep Dive: Connection Management Challenges and Evolution

2025-07-12

Reverse Proxy Deep Dive: Connection Management Challenges and Evolution

This article delves into the inner workings of a reverse proxy and the complexities of connection management. From single-threaded to multi-threaded, multi-process, and event-driven architectures with socket sharding, reverse proxies have evolved significantly to handle high concurrency. The article details the advantages and disadvantages of various techniques, such as the efficiency of epoll in I/O multiplexing and the challenges of multi-threaded models with multi-core processors, and points out further complexities in supporting TLS and protocol diversity.

(medium.com)

Development connection management

Modularizing a Monolith with Elixir's Hot Code Reloading

2025-07-12

Alzo, an Elixir monolith deployed as one instance per client, leverages Elixir and Erlang VM's hot code loading for client-specific features. This avoids microservices' cascading failures and complex testing. Client-specific LiveView apps reside in `/alzo/lib/clients/apps`, dynamically loaded at startup. Client code is removed during the build process, preventing the main app from depending on runtime apps. Hot code upgrades are avoided for simplicity. This approach provides efficient development, maintainability, scalability, and the ability to easily refactor common functionalities from dynamic apps into the main codebase.

(lucassifoni.info)

Development Hot Code Loading Monolithic Application

Jank: Seamless C++ Interop in Clojure, Achieved by a Solo Dev

2025-07-12

Jank, a Clojure runtime, has made significant strides in achieving seamless interoperability with C++. Through manual memory management, enhanced type systems, and opaque boxes, the developer enables direct C++ code calls within Clojure. Real-world examples showcased include printing "Hello, world!" via C++ streams and parsing JSON files using the JSON for Modern C++ library. Future work focuses on packaging, distribution, bug fixes, and ultimately, an alpha release.

(jank-lang.org)

Development Interop

Simple Sonos Control for a 5-Year-Old using ESP32

2025-07-12

Simple Sonos Control for a 5-Year-Old using ESP32

A father built a simple Sonos Play:1 speaker control system for his 5-year-old child. Using an M5Stack CardPuter v1.1 (ESP32S3) as a controller and Go for backend logic, the child can play or restart their favorite playlist with a button press. A green light indicates operational status. This is a fun, easy-to-use project highlighting simplicity and playful interaction.

(github.com)

Development Kids Project

Switzerland to Release Fully Open-Source Multilingual LLM

2025-07-12

Switzerland to Release Fully Open-Source Multilingual LLM

Researchers from ETH Zurich and EPFL, in collaboration with the Swiss National Supercomputing Centre (CSCS), are poised to release a fully open-source large language model (LLM). This model, supporting over 1000 languages, features transparent and reproducible training data and will be released under the Apache 2.0 license. The initiative aims to foster open innovation in AI and support broad adoption across science, government, education, and the private sector, while adhering to Swiss data protection laws and the transparency obligations under the EU AI Act. Training leveraged the CSCS's "Alps" supercomputer, powered by over 10,000 NVIDIA Grace Hopper Superchips and utilizing 100% carbon-neutral electricity.

(ethz.ch)

AI

Fighting Back Against Abusive Web Crawlers with Fake JPEGs

2025-07-12

Fighting Back Against Abusive Web Crawlers with Fake JPEGs

The author developed a small web application called Spigot that generates fake web pages to confuse malicious web crawlers. Recently, a crawler called ImageSiftBot aggressively targeted it for images, despite Spigot lacking them. To counter this, the author cleverly exploits the structure of JPEG files, generating fake JPEGs filled with random data. This effectively wastes the crawler's resources while minimizing CPU load on the server. The approach is simple and efficient, requiring minimal code, and the generated images display correctly in most browsers.

(www.ty-penguin.org.uk)

Development malicious crawlers

5 Years at Vercel: Lessons Learned from an Ex-VP

2025-07-11

5 Years at Vercel: Lessons Learned from an Ex-VP

After five years at Vercel, a former VP shares five key lessons learned during the company's rapid growth from 30 to 650 employees. These include the importance of balancing intense work with personal life, pushing for faster progress without being abrasive, scaling the team effectively, avoiding 'swoop and poop' decision-making, and the value of changing one's mind when presented with new information. The author reflects on challenges faced and how to build a thriving culture, offering valuable insights for aspiring leaders and entrepreneurs.

(leerob.com)

Startup

The Reliability Crisis in AI Agent Benchmarking

2025-07-11

The Reliability Crisis in AI Agent Benchmarking

Current AI agent benchmarks suffer from a significant reliability crisis. Many benchmarks contain exploitable flaws, leading to severe overestimation or underestimation of agent capabilities. For example, WebArena marks incorrect answers as correct, while others suffer from flawed simulators or lack robust evaluation methods. Researchers propose a 43-item AI Agent Benchmark Checklist (ABC) to improve benchmark reliability and evaluate 10 popular benchmarks, finding major flaws in most. This checklist aims to help benchmark developers and AI model developers build more reliable evaluation methods, enabling a more accurate assessment of AI agent capabilities.

(ddkang.substack.com)

AI AI evaluation

AI Addiction: A Growing Concern and the 12-Step Solution

2025-07-11

The rise of AI technologies has brought about a new form of digital addiction: AI addiction. This article introduces Internet and Technology Addicts Anonymous (ITAA), a 12-step fellowship supporting recovery from internet and technology addiction, including AI-related issues. It details symptoms, effects, and recovery strategies, offering a self-assessment questionnaire to help identify potential AI addiction. ITAA provides free, anonymous online and in-person meetings, encouraging members to recover through mutual support, abstinence, and seeking professional help when needed. The article emphasizes the serious impact of AI addiction, mirroring the effects of substance abuse on the brain and overall well-being.

(internetaddictsanonymous.org)

AI AI addiction

Apple Engineer's Double Life: From Mac Pioneer to Psychedelic Innovator

2025-07-11

Apple Engineer's Double Life: From Mac Pioneer to Psychedelic Innovator

Bill Atkinson, the key figure behind Apple's Macintosh, passed away in 2025 at age 74. Beyond his contributions to personal computing – creating QuickDraw, MacPaint, and HyperCard – he dedicated his final years, under the pseudonym "Grace Within," to promoting the safe, low-dose use of the psychedelic 5-MeO-DMT. He open-sourced the technology behind the LightWand vape pen, making it more accessible. Atkinson's actions democratized psychedelic exploration, providing broader access to tools for consciousness exploration and trauma healing.

(patternproject.substack.com)

Tech psychedelic

A Million Times a Million: The Long and Short of It

2025-07-11

The author's childhood understanding of large numbers was based on the long scale, where a million times a million is a billion, and so on. However, upon entering university and encountering the tech world, he discovered the prevalence of the short scale, where a million times a million is a trillion. The article compares and contrasts the two systems, explaining the short scale's logic: it's based on successive multiplications of one thousand, not a million. While now using the short scale, the author fondly remembers the elegance of the long scale.

(susam.net)

Misc number naming long scale short scale

The Wet Media History of the Bathroom

2025-07-11

The Wet Media History of the Bathroom

From the fitness craze of the 1980s to the present day, the bathroom has evolved from a simple washing space into a blend of media and technology. This article traces how media technologies have made their way into this intimate space, from early waterproof radios to high-end bathtubs with multimedia systems, showcasing the pursuit of an enhanced bathing experience. However, the integration of media technology brings complexities; work pressures can intrude on relaxation. The article explores the complex relationship between media technology and bathroom culture through historical and cultural perspectives, examining the underlying social, economic, and gender factors.

(thereader.mitpress.mit.edu)

Misc media history bathroom culture

Megadoses of Turmeric Lead to Severe Liver Damage: A Cautionary Tale

2025-07-11

Megadoses of Turmeric Lead to Severe Liver Damage: A Cautionary Tale

A 57-year-old woman spent six days hospitalized due to severe liver damage after taking daily megadoses of turmeric, a popular herbal supplement promoted on social media. She consumed 2250mg daily, significantly exceeding the WHO's recommended dose. Symptoms included stomach pain, nausea, fatigue, and dark urine. Blood tests revealed liver enzyme levels 60 times higher than normal. Doctors intervened, preventing potential liver failure. While turmeric is generally safe in food, increased supplement use and higher doses have led to a rise in liver injuries, making it a leading herbal cause of such damage in the US.

(arstechnica.com)

Misc turmeric liver damage herbal supplement risks

Near-Catastrophic OpenZFS Bug Highlights the Power of Rust's Type System

2025-07-11

Near-Catastrophic OpenZFS Bug Highlights the Power of Rust's Type System

A subtle yet devastating bug in OpenZFS's core disk allocation function was recently discovered. The bug, a simple type error resulting in the wrong size being returned, could silently overwrite data. It took nearly two days to track down. While the bug wasn't present in any released version, it spurred reflection on the limitations of static analysis in C and the advantages of Rust's type system. Rust's ability to define custom types (like `PhysicalSize` and `AllocatedSize`) would have prevented this. The author argues that relying solely on programmer perfection is flawed; leveraging tools and language features to improve code quality and mitigate hard-to-detect, high-impact bugs is key.

(despairlabs.com)

Development

Red Hat Style Guide: A Deep Dive into Terminology

2025-07-11

This document meticulously outlines the standardized terminology used in Red Hat technical documentation. It covers a wide range of aspects, from software names (e.g., IBM S/390, Samba) to descriptions of security (avoiding vague terms like "secure" and requiring specific details on security features). The guide also standardizes abbreviations (e.g., SSH, SSL), command-line descriptions, and clarifies the proper usage of easily confused words (e.g., "since" vs. "because"). The overall aim is to ensure consistency and accuracy, enhancing readability and professionalism.

(stylepedia.net)

Development Technical Writing Style Guide

The Fertility Decline: A Shift in Priorities

2025-07-11

The Fertility Decline: A Shift in Priorities

This paper investigates the historically low fertility rates across high-income countries. Analyzing cohort data reveals rising childlessness across all ages and falling completed fertility rates, highlighting the need for a long-term perspective. The study dismisses short-term explanations like income or price fluctuations, instead pointing to a fundamental shift in adult priorities, with parenthood playing a diminished role. This 'shifting priorities' phenomenon is likely a complex interplay of changing social norms, evolving economic opportunities and constraints, and broader societal and cultural forces. The paper concludes with suggestions for future research and policy implications.

(www.nber.org)

Misc population trends sociocultural factors

Cactus: Cross-Platform Framework for Local LLM Deployment

2025-07-11

Cactus: Cross-Platform Framework for Local LLM Deployment

Cactus is a cross-platform framework for deploying large language models (LLMs), vision language models (VLMs), and text-to-speech (TTS) models locally within your app. Supporting Flutter and React Native, it works with any GGUF model from Hugging Face (Qwen, Gemma, Llama, etc.), handling models from FP32 down to 2-bit quantization. Cactus provides MCP tool calls for enhanced AI functionality (reminders, image search, message replies), cloud model fallback for complex tasks, Jinja2-powered chat templates, and token streaming. Example code, performance benchmarks across various devices, and C++ backend are provided.

(github.com)

Development

Btrfs Performance Boost: Chunk Allocation with Device Roles

2025-07-11

A significant performance improvement is coming to the Btrfs filesystem! A new patch introduces a performance-based chunk allocation method using device roles, addressing the current imbalance caused by allocation based solely on free space. By defining five device roles (metadata_only, metadata, none, data, data_only) and prioritizing roles alongside remaining space, the system can intelligently assign faster devices to metadata and slower devices to data, significantly boosting read/write performance. This improvement avoids complex device speed measurements, leveraging the existing on-disk format for smarter, more efficient storage management.

(lwn.net)

Development

Qantas Data Breach Impacts 5.7 Million Customers

2025-07-11

Qantas Data Breach Impacts 5.7 Million Customers

Australian airline Qantas confirmed a data breach affecting approximately 5.7 million customers. The breach, stemming from a cyberattack on a third-party platform, exposed varying levels of personal information, including names, email addresses, and Qantas Frequent Flyer details. For some, address, date of birth, and phone numbers were also compromised. Qantas is contacting affected customers and implementing enhanced security measures. The attack bears similarities to recent attacks on other airlines, linked to the 'Scattered Spider' threat actors known for social engineering and extortion.

(www.bleepingcomputer.com)

Tech Qantas

YouTube's Sisyphean Task: Fighting the AI-Generated Content Flood

2025-07-11

YouTube's Sisyphean Task: Fighting the AI-Generated Content Flood

YouTube is drowning in AI-generated low-quality content. To combat this, YouTube is updating its Partner Program policies, effective July 15th, to better identify and crack down on mass-produced, repetitive content. This includes AI-generated videos lacking originality, simple slideshows, and highly repetitive Shorts. However, the ease and profitability of creating AI videos continues to attract creators, and the inherent limitations of content moderation mean the platform will struggle to fully eliminate this low-quality content, ultimately harming user experience.

(gizmodo.com)

Tech AI content moderation low-quality content

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