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World's Longest Immersed Tunnel: Linking Denmark and Germany

2025-03-10

World's Longest Immersed Tunnel: Linking Denmark and Germany

Denmark and Germany are building the world's longest immersed tunnel, the Fehmarnbelt Fixed Link, set to open in 2029. This 18-kilometer tunnel will more than halve travel times between the two countries and become the world's longest combined road and rail tunnel. The €7 billion+ project uses 89 massive prefabricated concrete sections, each weighing 73,000 tons. Despite some environmental concerns, the project is expected to bring significant economic and environmental benefits, boosting freight and passenger traffic, and reducing carbon emissions.

(www.cnn.com)

Tech immersed tunnel Denmark Germany

ICE's Stingray Use Continues, While AI Surveillance System Falters

2025-09-09

ICE's Stingray Use Continues, While AI Surveillance System Falters

Immigration and Customs Enforcement (ICE) continues to utilize Stingray technology to track undocumented immigrants, raising privacy concerns. A recently unsealed warrant reveals ICE's use of a cell-site simulator in Utah to locate a fugitive. Meanwhile, a $12 million AI surveillance system, Sherlock, intended to streamline police work, has reportedly shown slow progress and failed to deliver expected results. Further adding to surveillance concerns, ICE also signed a nearly $10 million contract with Clearview AI for facial recognition. These events highlight the reliance of law enforcement on surveillance technology and the resulting ethical and privacy implications.

(www.forbes.com)

Tech

From WWII Efficiency to Modern Government Failure: The Rise and Fall of Systematic Improvement

2025-02-11

From WWII Efficiency to Modern Government Failure: The Rise and Fall of Systematic Improvement

This article examines the history of US government efficiency reform, contrasting the success of the Bureau of the Budget's Work Simplification program during WWII (using flowcharts to improve processes) with the failure of the Clinton administration's National Performance Review (NPR). While the NPR achieved some technological advancements, its neglect of frontline worker participation and focus on short-term gains ultimately weakened institutional capabilities. The article argues that effective government reform requires systematic approaches, prioritizing frontline worker involvement and sustained capability building, rather than superficial changes.

(www.population.fyi)

Misc Government Reform Process Improvement

Markdown Ninja: One-Command Website & Newsletter Publishing

2025-06-11

Markdown Ninja: One-Command Website & Newsletter Publishing

Markdown Ninja is a lightweight Markdown CMS simplifying the publishing of blogs, websites, and newsletters. Forget complex static site generators, theme customization, and CI/CD pipelines; deploy with a single Docker command. Get started in under 2 minutes. Security is a priority, with comprehensive documentation and flexible licensing options available.

(github.com)

Development

Quantum Computing Cracks Chemistry's Hardest Nut: Accurately Modeling Complex Molecules

2025-05-23

Quantum Computing Cracks Chemistry's Hardest Nut: Accurately Modeling Complex Molecules

Researchers from IBM Quantum® and Lockheed Martin have demonstrated, for the first time, the use of a quantum computer to accurately model the electronic structure of open-shell molecules—molecules with unpaired electrons—using the Sample-based Quantum Diagonalization (SQD) technique. Classical methods struggle with these complex systems. This study, focusing on methylene (CH2), showcases quantum computing's ability to accurately calculate singlet and triplet states, matching high-accuracy classical results. This breakthrough opens doors for advancements in aerospace, sensing, and materials design, highlighting the potential of quantum-centric supercomputing.

(www.ibm.com)

Tech chemical simulation molecular structure

Derivatives, Gradients, Jacobians, and Hessians: A Deep Dive

2025-08-17

Derivatives, Gradients, Jacobians, and Hessians: A Deep Dive

This article provides a clear explanation of derivatives, gradients, Jacobian matrices, and Hessian matrices, four fundamental concepts in calculus and their applications. Derivatives describe the rate of change of a function, gradients point in the direction of the greatest increase, Jacobian matrices describe the warping of space for multivariable functions, and Hessian matrices contain second-order derivatives, describing curvature. These concepts are crucial in optimization algorithms (like gradient descent) and computer graphics (e.g., anti-aliasing rendering), providing a deeper understanding of machine learning and graphics rendering.

(blog.demofox.org)

Development matrices

VW Backtracks on Touchscreens: Physical Controls Are Back

2025-03-08

VW Backtracks on Touchscreens: Physical Controls Are Back

Volkswagen is reversing course on its touchscreen-heavy approach to car controls. Design chief Andreas Mindt announced that all future VW models will feature physical buttons for key functions. This follows criticism of the company's previous move to replace many physical controls with touchscreens. Starting with the production version of the ID.2all next year, vital controls like volume, heating, fan speed, and hazard lights will get dedicated physical buttons. Mindt stated that this change reflects a commitment to prioritizing driver safety and usability, acknowledging past mistakes and ensuring a more intuitive driving experience.

(www.autocar.co.uk)

Tech Physical Buttons User Interface

23andMe's Financial Troubles: Californians Can Delete Their Genetic Data

2025-03-22

23andMe's Financial Troubles: Californians Can Delete Their Genetic Data

Facing financial distress, genetic testing company 23andMe has prompted California Attorney General Rob Bonta to remind Californians of their rights under the Genetic Information Privacy Act (GIPA) and the California Consumer Privacy Act (CCPA) to delete their genetic data and destroy samples. Users can delete their accounts and personal information through 23andMe's website, following steps to download data, permanently delete it, and destroy samples.

(oag.ca.gov)

Tech genetic privacy

The Strangest Microwave Purchase Ever: A Trip to GO12

2025-09-08

The Strangest Microwave Purchase Ever: A Trip to GO12

SoraNews24 reporter Mr. Sato embarked on a mission to buy a new office microwave, but chose the unusual route of GO12, a 24/7 unmanned electronics store in Kamata, Tokyo. This store stocks used appliances, offering a self-service shopping experience via a tablet payment system. Mr. Sato purchased a 5,000 yen microwave, enjoying a smooth transaction, yet feeling a strange sense of guilt. GO12's trust-based system and unique shopping experience, while convenient, spark reflections on social trust and human nature.

(soranews24.com)

Misc unmanned store shopping experience

Codex: Promising GitHub Assistant, But Needs Improvement

2025-05-20

Codex: Promising GitHub Assistant, But Needs Improvement

Codex is a GitHub integrated tool powered by OpenAI's model, allowing users to submit code modification tasks via natural language. Its strength lies in its ability to handle multiple tasks in parallel and track progress through a familiar chat interface. However, Codex currently suffers from shortcomings such as poor error handling, difficulty handling large refactoring tasks, and lack of internet access. The author believes that with model improvements and feature enhancements, Codex has the potential to become a highly efficient development assistant, but currently it's better suited for small, simple maintenance tasks.

(zackproser.com)

Development

Manhattan's Hardest-Working Font: The Mystery of Gorton

2025-02-14

Manhattan's Hardest-Working Font: The Mystery of Gorton

This article details the author's obsessive quest to uncover the story behind Gorton, a surprisingly ubiquitous yet unassuming font. Initially used with engraving machines, its rugged durability led to widespread adoption in diverse contexts, from keyboards to spacecraft. The author's years-long search, spanning countless miles and locations, reveals Gorton's century-long history, tracing its origins to a UK lens maker and its subsequent evolution through various iterations like Leroy. While far from perfect, Gorton's charm lies in its imperfections and enduring presence, solidifying its status as Manhattan's hardest-working font.

(aresluna.org)

Design design history

HTTL CLI: Streamlining HTTL Queries from Your Terminal

2025-02-20

HTTL CLI: Streamlining HTTL Queries from Your Terminal

Starting with version 0.1.7, HTTL offers a command-line interface (CLI) for executing HTTL queries directly from your terminal. This is ideal for integrating HTTL into CI/CD pipelines or existing automation scripts. The HTTL CLI supports all HTTL language features and provides formatted, colorized output. Installation requires Node.js 16.14 or later and is done via npm globally.

(httl.dev)

Development

Reverse-Engineering a Pentium's Carry-Lookahead Adder

2025-01-18

Reverse-Engineering a Pentium's Carry-Lookahead Adder

Ken Shirriff's blog post details the reverse engineering of an 8-bit adder within the Pentium's floating-point unit. This adder, a Kogge-Stone carry-lookahead adder, accelerates addition by calculating carry bits in parallel. The post meticulously explains the carry-lookahead adder's principle, showcasing the Pentium's hardware implementation—a four-layer circuit structure employing the Kogge-Stone algorithm. It also discusses the adder's role in the Pentium's floating-point division unit and its connection to the infamous Pentium FDIV bug.

(www.righto.com)

Hardware carry-lookahead adder

Microsoft's New Command Palette: An Enhanced PowerToys Run

2025-05-17

Microsoft's New Command Palette: An Enhanced PowerToys Run

Microsoft has quietly released Command Palette, a revamped launcher app for Windows, succeeding its PowerToys Run. This updated tool offers quick access to commands, apps, and development tools, including search functionality for apps, files, and folders; calculations; system commands; and website/web search capabilities. Crucially, Command Palette boasts extensibility, allowing users to add custom commands and features, making it a powerful asset for developers and power users. Window Walker functionality is also integrated for easy window switching.

(www.theverge.com)

Development

xtool: A Cross-Platform Xcode Replacement

2025-05-17

xtool: A Cross-Platform Xcode Replacement

xtool is a cross-platform tool (Linux/WSL/macOS) that replicates core Xcode functionality using open standards. Build and deploy iOS apps with SwiftPM without needing Xcode. Key features include building SwiftPM packages into iOS apps, signing and installing apps, and programmatic interaction with Apple Developer Services. It also offers an XKit library for interacting with Apple services and iOS devices within your own apps.

(github.com)

Development Cross-Platform

Converge Hiring Senior Full-Stack Engineer: Build a Million-Dollar Marketing Measurement Platform

2024-12-16

Converge Hiring Senior Full-Stack Engineer: Build a Million-Dollar Marketing Measurement Platform

Converge, a Y Combinator-backed company with over $1M in ARR, is hiring a senior full-stack engineer. The small team (only 4 people) serves 180+ customers, processing billions of dollars in annual sales and billions of events per month. You'll build a unified marketing measurement stack, including customer data collection, identity resolution, and marketing attribution, with direct customer interaction and significant ownership. The company values action-orientedness, continuous learning, positive attitudes, and simplicity. Requires extensive full-stack experience, proficiency in React and backend development, and knowledge of production software deployment and scaling.

(www.ycombinator.com)

Development Full-Stack Engineer Marketing Measurement

Stop the Back-and-Forth: Craft the Perfect AI Coding Prompt from the Start

2025-08-17

Stop the Back-and-Forth: Craft the Perfect AI Coding Prompt from the Start

When using AI coding assistants, instead of endless clarifications and corrections, revise your initial prompt. Think of it like giving instructions – constant changes confuse the recipient. AI assistants are similar; multiple edits lead to conflicting context, confusion, and degraded performance. Provide clear, complete instructions upfront, letting the AI start fresh for better results. A precise initial prompt avoids iterative refinement.

(elite-ai-assisted-coding.dev)

Development

Pacific Ocean Car Carrier Sinks After Fire

2025-06-25

Pacific Ocean Car Carrier Sinks After Fire

The Morning Midas, a car carrier carrying approximately 3,000 vehicles (800 of which were EVs), sank in the Pacific Ocean after a fire. The fire, which began in early June, initially produced smoke from the deck carrying electric vehicles. Heavy weather exacerbated the damage, leading to flooding and the vessel's eventual sinking. The incident highlights the shipping risks posed by lithium-ion batteries in EVs, especially on large car carriers. The response was hampered by the ship's distance from land (approximately 360 miles).

(www.ttnews.com)

Tech shipping accident

Carl Sagan's Prophecy: The Decline of Science and America's Future

2025-02-05

Carl Sagan's Prophecy: The Decline of Science and America's Future

This article explores Carl Sagan's prediction of America's future trajectory, contrasting it with the cyclical theory of history proposed by the 18th-century philosopher Giambattista Vico. Sagan feared that the benefits of technological advancement in America would be controlled by a select few, leading to a decline in public scientific literacy, a rise in superstition, and ultimately, societal decline. This aligns with Vico's theory of cyclical rise and fall, but Sagan believed that reversing this trend through science education was possible. The article serves as a warning about the importance of science literacy education and avoiding a repeat of history.

(www.openculture.com)

Tech science education technological future social prediction

Mars' Middle Atmosphere: Gravity Waves Reign Supreme

2025-03-11

Mars' Middle Atmosphere: Gravity Waves Reign Supreme

A groundbreaking study reveals that unlike Earth, Mars's middle and upper atmosphere circulation is primarily driven by gravity waves (GWs), not Rossby waves. Analysis of long-term atmospheric data shows GWs facilitate rapid vertical transfer of angular momentum, significantly influencing north-south circulation. This contrasts with Earth's stratosphere, resembling the mesosphere instead. This finding necessitates refining existing Martian atmospheric models for improved climate and weather simulations, crucial for future missions. Future research will explore the impact of Martian dust storms on this dynamic, promising more accurate Martian weather forecasting.

(phys.org)

Tech Mars Atmosphere Gravity Waves Atmospheric Circulation

Unlocking AI's Potential: The Missing Guide to Prompt Engineering

2025-07-21

Unlocking AI's Potential: The Missing Guide to Prompt Engineering

This article highlights the critical role of prompt engineering in maximizing AI performance. It emphasizes that clear prompts lead to accurate and useful AI outputs, while poorly crafted prompts result in inaccurate information and wasted resources. The article distinguishes between conversational prompting for casual use and product prompting for business applications, focusing on the latter's precision and importance in building reliable AI-powered systems. It offers techniques for crafting effective prompts, including guiding AI reasoning, self-checking, and meeting specific requirements, ultimately advocating for a collaborative approach to harnessing AI's full potential.

(appetals.com)

AI AI collaboration

Visualizing Chromium's Include Graph: A 150MB GraphML Adventure

2025-05-21

Visualizing Chromium's Include Graph: A 150MB GraphML Adventure

This post details visualizing Chromium's massive include graph using clang-include-graph, a command-line tool. The process involved building Chromium to generate compile_commands.json, then using clang-include-graph to produce a 150MB GraphML file. This file, containing over 140,000 nodes and 1.3 million edges, was visualized with Gephi. Python scripts analyzed the graph, revealing interesting statistics like a 92-node strongly connected component responsible for 99% of the cycles. The author explores various visualization layouts and discusses the challenges of working with such a large dataset.

(blog.bkryza.com)

Development

Deep Dive: Humans to Test Underwater Habitat in 2025

2025-01-06

Deep Dive: Humans to Test Underwater Habitat in 2025

British startup Deep is pioneering underwater living with its Sentinel project, a modular habitat slated for completion in 2027. Utilizing advanced 3D printing and welding, Sentinel will enable scientists to live and work at depths up to 200 meters for extended periods. A smaller, transportable habitat called Vanguard, launching in 2025, will serve as a testbed. Vanguard can house three divers for up to a week, demonstrating the potential to dramatically increase the efficiency of ocean research and enhance our understanding of marine ecosystems in the face of climate change.

(spectrum.ieee.org)

Tech Underwater Habitat Ocean Exploration 3D Printing

Turn Your Old iPhone or RTSP Camera into an AI Security Camera

2025-08-24

Turn Your Old iPhone or RTSP Camera into an AI Security Camera

The Clearcam app lets you upgrade your old iPhone or any RTSP-enabled camera into a state-of-the-art AI security camera. With a simple Homebrew install and running a Python script, you can view live feeds and receive event notifications (objects/people detected) on your local browser. Clearcam Premium offers remote viewing, event clips, and end-to-end encryption. Currently only iOS is supported, Android users can use the iOS User ID temporarily.

(github.com)

Tech

Optimizing Airport Travel: A Practical Guide

2025-08-24

Optimizing Airport Travel: A Practical Guide

This article offers a practical guide to optimizing airport travel, drawing on the author's personal experiences. Key strategies include booking flights about two weeks in advance, opting for basic economy and direct flights, avoiding budget airlines, and efficiently managing time at the airport. The author suggests arriving at the terminal one hour before departure, adjusting this based on factors like traffic and checked baggage. The article also explores maximizing airport waiting time through activities like reading, listening to music, or watching movies, and cautions against attempting work on the plane unless absolutely necessary.

(thezvi.substack.com)

Misc airport travel travel strategies

Claude Sonnet 4: 1 Million Token Context Window!

2025-08-13

Claude Sonnet 4: 1 Million Token Context Window!

Anthropic has boosted Claude Sonnet 4's context window to a massive 1 million tokens—a 5x increase! This allows processing entire codebases (75,000+ lines of code) or dozens of research papers in a single request. The long context support is in public beta on the Anthropic API and Amazon Bedrock, with Google Cloud's Vertex AI coming soon. This unlocks powerful new use cases like large-scale code analysis, document synthesis, and context-aware agents. While pricing adjusts for prompts exceeding 200K tokens, prompt caching and batch processing offer cost savings. Early adopters like Bolt.new and iGent AI are already leveraging this enhanced capability for code generation and software engineering tasks.

(www.anthropic.com)

AI Context Window

Decentralized Mastodon Defies Mississippi's Age Verification Law

2025-08-30

Decentralized Mastodon Defies Mississippi's Age Verification Law

Decentralized social network Mastodon announced its inability to comply with Mississippi's age verification law, the same law that prompted rival Bluesky to leave the state. Mastodon cites its user-tracking limitations and reluctance to employ IP-based blocks as reasons for non-compliance. Founder Eugen Rochko highlighted the importance of true decentralization, stating that no one can unilaterally decide to block Mississippi from the Fediverse. While Mastodon's own servers specify a minimum signup age, its software doesn't support age verification across all servers. Individual server owners must decide on age verification implementation. Mastodon claims it can't directly assist other server operators, suggesting they consult online resources and comply with local laws.

(techcrunch.com)

Tech

Visualizing 6D Mesh Parallelism in Deep Learning Training

2024-12-19

Visualizing 6D Mesh Parallelism in Deep Learning Training

This article delves into the complexities of 6D mesh parallelism in deep learning model training. Using a series of visualizations, the author meticulously explains the communication mechanisms of various parallel strategies—data parallelism, fully sharded data parallelism, tensor parallelism, context parallelism, expert parallelism, and pipeline parallelism—during the model's forward and backward passes. The author uses a simple attention layer model to illustrate the implementation details of each parallel approach, highlighting their interactions and potential challenges, such as the conflict between pipeline parallelism and fully sharded data parallelism. The article concludes by discussing mesh ordering, combining different parallel strategies, and practical considerations.

(main-horse.github.io)

AI parallel computing model training

A Self-Written C++ Standard Library: Simplicity vs. Completeness

2025-06-02

A Self-Written C++ Standard Library: Simplicity vs. Completeness

The author wrote a simplified C++ standard library for fun and shared it on Hacker News and Reddit. The post sparked a discussion, not about the library's completeness, but its naming and design philosophy. The author intentionally simplified the library's design, requiring all types to be 'well-behaved', thus avoiding complex exception handling. This significantly reduces the library's complexity but also limits its applicability. The post also explores the implementation of string splitting and iterators, comparing the differences between Python and C++. Ultimately, the author completed functionality for strings, regular expressions, and basic containers with impressively fast compilation times.

(nibblestew.blogspot.com)

Development

AI Art: A Dreamlike Silver-Haired Princess

2025-03-08

AI Art: A Dreamlike Silver-Haired Princess

This AI-generated artwork depicts a princess with flowing silver hair and violet eyes, elegantly seated in a magically glowing pond, adorned in a stunning white and purple gown with floral accents. Surrounded by butterflies and petals, the image is exquisitely detailed, dreamy, and evokes a fantastical atmosphere. The intricate shading and lighting showcase advanced AI art capabilities.

(www.gentube.app)

Design dreamlike princess

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