Remembering Matilda: The Last Survivor of the Transatlantic Slave Trade

2025-01-16
Remembering Matilda: The Last Survivor of the Transatlantic Slave Trade

This article recounts the life of Matilda McCrear, the last known survivor of the Clotilda, the final ship to transport enslaved Africans to America. Kidnapped from West Africa in 1859, Matilda endured the horrors of slavery and the injustices of Reconstruction. Despite her unsuccessful legal claim for compensation, her story powerfully illuminates the brutality of this dark chapter in history and the enduring struggle for racial equality.

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Anime Catgirls and the Linux Kernel: A Cost Analysis of an Anti-Crawler Mechanism

2025-08-21

Recently, more websites are using Anubis, an anti-crawler system that uses a mining-like process to verify visitor identity, requiring users to perform SHA-256 operations to gain access. The author questions the effectiveness of Anubis because it's trivial for AI crawlers with powerful computing capabilities but inconvenient for ordinary users. Through calculations, the author finds that even with tens of thousands of websites deploying Anubis, the cost of cracking its verification mechanism is virtually zero. The author finally provides a simple C program to bypass Anubis's restrictions and points out a vulnerability in the Anubis system.

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Tech

Concept Cells: The Building Blocks of Memory?

2025-01-21
Concept Cells: The Building Blocks of Memory?

Neuroscientists have discovered 'concept cells' in the brain that fire for specific ideas, regardless of how that idea is presented (image, text, speech, etc.). These cells don't just respond to images; they represent abstract concepts, playing a crucial role in memory formation. Research suggests concept cells interconnect to form complex memory networks. This discovery challenges traditional neuroscience, offering new insights into human memory and cognition. The initial discovery of these cells, initially dubbed 'Jennifer Aniston cells,' was met with skepticism, but subsequent research has solidified their importance.

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What if OpenSSL Had a GUI?

2025-01-27
What if OpenSSL Had a GUI?

This article explores what a graphical user interface for OpenSSL's complex functionality might look like. From the perspective of Smallstep, the article highlights how their products simplify certificate management and secure access control, noting the magical complexity of OpenSSL. It also includes introductions to other Smallstep products and links to blog posts.

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Tech

London's Victoria Line: A Scorching Tube Nightmare

2025-05-25
London's Victoria Line: A Scorching Tube Nightmare

London's Victoria Line continues to be the hottest underground line, with an average temperature of 28 degrees Celsius in 2024, exceeding even the legal limit for transporting livestock. Despite Transport for London (TfL)'s significant investment in cooling technologies, including air conditioning and ventilation systems, the line's depth and unique geological conditions (deep within London clay) hinder cooling efforts. While other lines saw a 7% temperature increase since 2013, the Victoria Line experienced a near 30% rise, soaring almost 7 degrees. High temperatures persist even in winter, with temperatures never dropping below 25 degrees. With passenger heatstroke incidents on the rise, TfL faces a major challenge, and commuters might want to consider cooler alternatives this summer.

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Chrome's New `<permission>` Element: A Declarative Approach to Web Permissions

2025-06-15
Chrome's New `<permission>` Element: A Declarative Approach to Web Permissions

The Chrome permissions team is experimenting with a new declarative HTML `` element to simplify how web apps request powerful features like location access. Traditional imperative methods suffer from permission spam, poor contextualization, and difficulty in revoking permissions. The `` element offers a more secure and user-friendly approach, allowing developers to declaratively request permissions while the browser dynamically updates the element's text based on user interaction and provides clear permission management. Currently in origin trial in Chrome 126, it aims for standardization.

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Development Permission Management

LLRT: Blazing Fast Serverless JavaScript Runtime

2025-05-18
LLRT: Blazing Fast Serverless JavaScript Runtime

AWS Labs introduces LLRT, a lightweight JavaScript runtime built in Rust designed for high-performance serverless applications. Outperforming other JavaScript runtimes on AWS Lambda by over 10x faster startup and up to 2x lower cost, LLRT utilizes QuickJS as its JavaScript engine for efficient memory usage and rapid startup. While experimental, LLRT supports deployment via custom runtimes and container images, includes robust testing tools, and offers excellent compatibility with AWS SDK v3. It's not a Node.js replacement, but rather a complement for performance-critical serverless functions, ideal for tasks like data transformation and real-time processing. Its Node.js-based API ensures easy transition from other solutions.

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Development

Open Source Solaar: A Linux Manager for Logitech Devices

2024-12-18
Open Source Solaar: A Linux Manager for Logitech Devices

Solaar is an open-source Linux device manager for many Logitech keyboards, mice, and other devices connecting wirelessly via Unifying, Bolt, Lightspeed, or Nano receivers, as well as many Logitech devices connecting via USB cable or Bluetooth. It's not a device driver; it responds to special messages from devices otherwise ignored by the Linux input system. Solaar supports pairing/unpairing devices with receivers, configuring device settings, custom button configurations, and running rules in response to special messages from devices. Installation options include pre-built packages and source code compilation.

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Development

Helsinki Achieves Remarkable Year: Zero Traffic Fatalities

2025-08-03
Helsinki Achieves Remarkable Year: Zero Traffic Fatalities

Helsinki has achieved a remarkable feat: a full year with zero traffic fatalities. This is attributed to long-term urban planning, reduced speed limits (over half the streets have a 30 km/h limit), improved road design prioritizing pedestrian safety, enhanced enforcement, and better public transportation. While e-scooters present a new challenge, Helsinki is addressing this through regulatory adjustments and improved signage. This success is a culmination of decades of sustained effort, offering valuable insights for the EU's Vision Zero 2050 goal.

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bioRxiv and medRxiv Become Independent Non-Profit: openRxiv

2025-03-11
bioRxiv and medRxiv Become Independent Non-Profit: openRxiv

The preprint servers bioRxiv and medRxiv, previously managed by Cold Spring Harbor Laboratory (CSHL), have launched as the independent non-profit organization openRxiv. This transition, supported by a $16 million grant from the Chan Zuckerberg Initiative (CZI), ensures the long-term sustainability of these crucial platforms for sharing biological and medical research preprints. Since their inception, bioRxiv has hosted over 268,000 preprints, and medRxiv nearly 64,000, collectively attracting over 11 million monthly readers. The creation of openRxiv marks a significant step in the maturation of preprint servers and underscores their vital role in the scientific publishing ecosystem.

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TypeScript Enums: Use Cases and Alternatives

2025-01-20

This blog post takes a closer look at TypeScript enums: How do they work? What are their use cases? What are the alternatives if we don’t want to use them? The post concludes with recommendations for when to use which approach. It covers enum basics, use cases (e.g., namespace for constants with primitive values, custom type with unique values, namespace for constants with object values), alternatives (e.g., object literals, union of string literal types), and how to perform exhaustiveness checks and enumerate members.

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Development Enums

Run Local LLMs in Your Browser: Introducing BrowserAI

2025-01-22
Run Local LLMs in Your Browser: Introducing BrowserAI

BrowserAI is an open-source project enabling you to run large language models (LLMs) locally within your browser. Prioritizing privacy, all processing happens on your device, eliminating server costs and complex infrastructure. It supports multiple models, including those from MLC and Transformers, leveraging WebGPU for blazing-fast inference. A simple API allows developers to easily integrate text generation, speech recognition, and text-to-speech. Many models are already supported, with a roadmap outlining future enhancements such as advanced RAG capabilities and enterprise features.

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AI

Simple Denoising Diffusion: A PyTorch Implementation

2025-04-03
Simple Denoising Diffusion: A PyTorch Implementation

This repository provides a streamlined PyTorch implementation of a denoising diffusion model. Building upon existing resources, the author refactored the code for improved readability and understanding. Functions and classes are logically separated into different files, making it easier to grasp the building blocks of diffusion models. Training and image generation are handled in separate files for easier parameter management. While the generated images aren't perfect, this project serves as a valuable learning resource for understanding diffusion models.

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Development

Modernizing Web UI Controls: The Open UI Community Group's Mission

2025-03-12
Modernizing Web UI Controls: The Open UI Community Group's Mission

Web interactivity stems from HTML's form and UI controls. However, since HTML5, complex web projects require more powerful UI control capabilities, leading developers to rely on JavaScript frameworks. This results in poor accessibility, slow page speeds, and other issues. The Open UI Community Group aims to improve HTML, CSS, JavaScript, and Web APIs to empower developers to build modern custom user interfaces. Their goal is to make web UIs more flexible, efficient, and accessible.

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Development

Russia-backed Hackers Crack Encrypted Messaging Apps

2025-02-22
Russia-backed Hackers Crack Encrypted Messaging Apps

Google's Threat Intelligence Group revealed that Russia-backed hacking groups have developed techniques to compromise encrypted messaging services like Signal, WhatsApp, and Telegram, putting journalists, politicians, and activists at risk. Attacks involve exploiting Signal's 'linked devices' feature with malicious QR codes, accessing battlefield phones, and deploying phishing websites. These attacks are difficult to detect, potentially remaining unnoticed for extended periods. Signal has implemented security improvements, but users are urged to remain vigilant and avoid suspicious links.

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Hyperlight Wasm: Blazing Fast, Secure, and Compatible WebAssembly Micro-VM

2025-03-26
Hyperlight Wasm: Blazing Fast, Secure, and Compatible WebAssembly Micro-VM

Microsoft's open-source Hyperlight project gets a major update: Hyperlight Wasm. It's a WebAssembly-based micro-VM capable of running components written in various programming languages at incredible speeds while maintaining security and compatibility. Leveraging WASI and the WebAssembly Component Model, Hyperlight Wasm runs programs without a full operating system, boasting millisecond-level startup times. The article details Hyperlight Wasm's workings and demonstrates its usage with a UDP echo example, highlighting its performance and security advantages, and its potential applications in Azure services.

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Development Micro-VM

Millau Viaduct: Where Architecture Meets Engineering

2025-08-11
Millau Viaduct: Where Architecture Meets Engineering

The Millau Viaduct transcends the typical bridge; it's a masterful blend of architecture and engineering. Its elegant cable-stayed design gracefully spans the Tarn River gorge, achieving both aesthetic beauty and structural efficiency. Setting multiple world records with its height and span, the viaduct's slender form minimizes its environmental impact, showcasing a triumph of modern bridge design.

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arXivLabs: Experimenting with Community Collaboration

2025-03-07
arXivLabs: Experimenting with Community Collaboration

arXivLabs is a framework for collaborators to develop and share new arXiv features directly on the website. Individuals and organizations involved share arXiv's values of openness, community, excellence, and user data privacy. arXiv only partners with those adhering to these values. Got an idea to improve the arXiv community? Learn more about arXivLabs.

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Development

UK Watchdog to Issue New Guidance on Smart Device Data Privacy

2024-12-16
UK Watchdog to Issue New Guidance on Smart Device Data Privacy

The UK's Information Commissioner's Office (ICO) will issue new guidance addressing data privacy concerns surrounding smart home devices. A Which? report revealed that some air fryers and other smart devices sent user data to servers in China. The ICO stated that consumers feel overwhelmed by the amount of data collected and lack control over its use. New guidelines, launching Spring 2025, will cover consent procedures, privacy information provision, and tools enabling users to exercise their rights.

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LiveYou: Revolutionizing Learning with Real-time Interaction

2025-01-04

LiveYou is a groundbreaking online learning platform offering real-time interaction between students and instructors across any subject. Breaking free from traditional learning constraints, LiveYou provides a flexible, personalized learning experience. Users can select instructors and courses tailored to their needs, receiving personalized feedback and guidance through real-time interaction. This platform hints at a potential revolution in online education, offering learning unbound by time and location.

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Elon Musk's Roadster Mistaken for Asteroid

2025-01-26
Elon Musk's Roadster Mistaken for Asteroid

An amateur astronomer discovered a near-Earth object that turned out to be Elon Musk's Tesla Roadster, launched into space aboard a SpaceX Falcon Heavy rocket in 2018. This highlights a growing lack of transparency in deep space, as increasing numbers of spacecraft and rocket debris create confusion with asteroids, wasting observational resources and potentially skewing statistical analyses of hazardous asteroids. The Minor Planet Center is collaborating with JPL to improve identification systems to better differentiate between artificial and natural objects.

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Foundation Models for Time Series Forecasting: A Real-World Benchmark

2025-06-13
Foundation Models for Time Series Forecasting: A Real-World Benchmark

Traditional time-series forecasting methods like ARIMA and Prophet are being challenged by a new generation of "foundation models." These models aim to bring the power of large language models (LLMs) to time-series data, enabling a single model to forecast across diverse datasets and domains. This article benchmarks several foundation models—Amazon Chronos, Google TimesFM, IBM Tiny Time-Mixers, and Datadog Toto—against classical baselines. Testing on real-world Kubernetes pod metrics reveals that foundation models excel at multivariate forecasting, with Datadog Toto performing particularly well. However, challenges remain in handling outliers and novel patterns, and classical models retain competitiveness for steady-state workloads. Ultimately, the authors conclude that foundation models offer significant advantages for fast-changing, multivariate data streams, providing more flexible and scalable solutions for modern observability and platform engineering teams.

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The End of Compiler Hell? A Revolutionary Proposal for Automatic Code Migrations

2025-03-30
The End of Compiler Hell? A Revolutionary Proposal for Automatic Code Migrations

A major problem with modern compilers is their lack of a concept of time. Updating dependencies only updates the code downloaded to your hard drive without modifying call sites. This article proposes a revolutionary solution: automatic code migrations. Similar to database migrations, the compiler could automatically transform old code to adapt to new function types or module changes, preventing breakage from dependency updates. Two approaches are suggested: declaring migration macros directly on types and using migration files. This not only solves the problem of changing function types but also handles adding functions and trait instances, effectively preventing unnecessary code breakage and bringing new possibilities to modern software development.

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Development compilers

Frankfurt Silver Amulet Rewrites Early Christian History

2024-12-18
Frankfurt Silver Amulet Rewrites Early Christian History

Archaeologists unearthed a groundbreaking artifact in a 3rd-century Roman grave near Frankfurt, Germany: a silver amulet, the "Frankfurt Silver Inscription." Dating back to 230-270 CE, this amulet predates previously known Christian artifacts in the region by almost 50 years. Its inscription, deciphered using advanced technology, contains exclusively Christian content, including invocations to Jesus Christ and biblical quotations. This discovery significantly pushes back the timeline of Christianity's presence north of the Alps, shedding light on its early spread and influence in Roman Germania. The find has major implications for archaeology, theology, and Roman history.

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Five Years in the Making: A Minimalist Music Composition Web App Launches on Hacker News

2025-02-05
Five Years in the Making: A Minimalist Music Composition Web App Launches on Hacker News

An engineer recounts his five-year journey building a minimalist online music composition web app, "signal." He details the challenges of navigating evolving JavaScript technologies (from C++ to Electron, CoffeeScript, React, Riot.js, TypeScript, and finally WebGL and styled-components), performance bottlenecks, and the eventual launch on Hacker News. Despite modest initial reception, the app gained traction, earning GitHub stars and sponsorships. While still early in development, the launch marks a significant milestone, with future plans focusing on collaborative composition features.

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Development Music Composition

A Global Collection of Modern Literary Novels

2025-01-31

This website celebrates the modern literary novel worldwide since the early 20th century, categorized by nationality. It's a personal yet extensive survey of literary fiction since 1900, constantly expanding. Discover over 1700 authors writing in or translated into English, French, German, Italian, Portuguese, or Spanish. Each entry includes biography, bibliography, and selected book reviews. Created by a translator, this is a personal collection aimed at providing a valuable resource for literature enthusiasts. As Mia Couto says, "Books are never written. When we read them, we write them."

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Single-Frame Deblurring: Deep Learning for Motion Blurred Video Restoration

2025-03-28

Researchers introduce a novel single-frame deblurring method that calculates motion velocity in motion-blurred videos using only a single input frame. Because the true direction of motion in a single motion-blurred image is ambiguous, the method adjusts the velocity direction based on the photometric error between frames. Gyroscope readings are directly used as angular velocity ground truth, while translational velocity ground truth is approximated using ARKit poses and frame rate. Note that angular velocity axes are x-up, y-left, z-backwards (IMU convention), while translational velocity axes are x-right, y-down, z-forward (OpenCV convention). The method was evaluated on real-world motion-blurred videos.

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Ancient Greek Tech: Unlocking the Parthenon's Lighting Secrets

2025-05-22
Ancient Greek Tech: Unlocking the Parthenon's Lighting Secrets

A four-year study led by Oxford University has revealed how the Parthenon was illuminated in ancient Greece. Using archaeological evidence, 3D technology, and optical physics, researchers recreated the temple's lighting system, showing how it was designed to inspire awe. The architects and sculptor Phidias strategically used roof openings, water basins, windows, and the marble's reflective properties to manipulate light. During the Panathenaic Festival, the rising sun would dramatically illuminate Athena's statue, creating a breathtaking spectacle. This research, soon to be available as an immersive VR experience, showcases the power of technology in unlocking ancient mysteries.

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Superbloom: How Connection Technologies Tear Us Apart

2025-01-30
Superbloom: How Connection Technologies Tear Us Apart

Nicholas Carr's new book, *Superbloom*, examines how modern connection technologies—cell phones, the internet, social media, etc.—impact individuals and society. Carr argues these technologies aren't inherently evil but cause negative consequences due to our misconceptions about communication and ourselves. He uses the 2019 Los Angeles poppy bloom event to illustrate how information overload and social media's amplification effect lead to chaos and negativity. The book traces the history of communication technologies, highlighting how they've always been accompanied by supernatural imaginings, and raises concerns about anonymity, power, and information veracity. Carr critiques technological optimism, arguing that information overload hasn't led to a more democratic or rational society but has instead exacerbated social divisions. He contends that social media's design leverages cognitive biases, exacerbating information fragmentation and fast-paced thinking, ultimately resulting in a 'hyperreality' where truth is indistinguishable from falsehood. Carr calls for a return to reality, resisting information overload, and proposes potential solutions, such as increasing the friction cost of information dissemination.

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Meta AI's Privacy Nightmare: Your Private Chats Are Public

2025-06-13
Meta AI's Privacy Nightmare: Your Private Chats Are Public

Meta's new standalone AI app is facing a major privacy backlash. Conversations with the AI, including text, audio, and images, are publicly shared by default, unbeknownst to many users. Sensitive information, such as tax evasion inquiries, family members' potential involvement in crimes, and even home addresses and court details, have been exposed. Meta has not commented. This highlights a significant design and security failure by Meta and serves as a stark warning about the risks of publicly sharing AI conversations. Despite only 6.5 million downloads, the negative impact is spreading, fueled by online trolling.

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