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GitHub Project ted: A Turing Machine-based File Editor

2024-12-18

ted is a command-line tool written in Go that allows users to edit files according to the rules of a provided Turing machine. Inspired by the author's need to process log files, ted uses state machines to precisely extract the desired information. It supports various operations, including regular expression matching, sed command execution, variable assignment, capture and output control, and offers features such as multi-line capture, regex capture groups, and file head/tail movement.

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(github.com)
Development Turing Machine File Editing State Machine

Homescreen App: Redefining Your Home Screen Experience

2024-12-18

Homescreen is an app designed to revolutionize the home screen experience on your phone. Breaking free from the limitations of traditional phone desktops, it offers users a more personalized, efficient, and convenient way to interact with their devices. Users can customize widgets, themes, and layouts to create a unique home screen, boosting productivity and enjoyment. Homescreen isn't just a simple desktop replacement; it's a refreshing approach to how we use our phones.

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(homescreen.app)
Development phone home screen customization productivity

From Pickle Maker to King: The Untold Story of Khalid Sheldrake

2024-12-18

Bertie Sheldrake, grandson of a London pickle manufacturer, converted to Islam, changing his name to Khalid. He became a prominent figure in the British Muslim community, founding journals and ultimately accepting the kingship of the short-lived Islamic Republic of East Turkestan in Xinjiang. This incredible journey, from ordinary London life to a faraway kingdom and back to obscurity, adds a fascinating chapter to the history of 20th-century British Islam.

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(www.nationalarchives.gov.uk)
Misc British History Islam

Reclaiming Sensor Data: Breaking Free from the Cloud

2024-12-18

This article details how an embedded software engineer regained control of data from a cloud-connected radon sensor by bypassing the manufacturer's servers. By analyzing network traffic, the engineer discovered a vulnerability where the sensor didn't properly validate server certificates. Leveraging a local DNS server and a custom Python web server, the engineer successfully intercepted and read the raw sensor data. This grants programmatic access and ensures continued functionality even if the manufacturer's servers go down. The article highlights the importance of network security and the privacy risks associated with DNS traffic.

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(embeddedartistry.com)
Development IoT security data autonomy embedded systems

Egyptian Fractions: A Journey Through Ancient Mathematics

2024-12-18

This article explores the fascinating world of Egyptian fractions, a unique mathematical system used by ancient Egyptians. Unlike modern fractions, Egyptian fractions only use unit fractions (fractions with a numerator of 1) and all denominators must be distinct. The article traces the history of Egyptian fractions, focusing on the Rhind Mathematical Papyrus, and examines their practical applications, such as fairly dividing resources. It introduces the greedy algorithm for finding Egyptian fractions and methods for finding the shortest ones, also exploring related unsolved mathematical problems, including the Erdős–Straus conjecture.

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(r-knott.surrey.ac.uk)
Misc Egyptian fractions Rhind Mathematical Papyrus Number theory Mathematics history Algorithms

Browser Extension 'refoorest' Accused of Fraudulent Tree-Planting Scheme

2024-12-18

An investigation into Colibri Hero's browser extension, refoorest, and its Impact Hero SDK reveals a deceptive affiliate marketing scheme disguised as a tree-planting initiative. The extension misrepresents the number of trees planted, exploits user data through incentivized reviews and sharing, and the SDK gains excessive user permissions without proper disclosure, violating Chrome Web Store policies. The article exposes a pattern of opaque practices, including fake testimonials, financial secrecy, and data security vulnerabilities, casting serious doubt on the company's claims of environmental responsibility.

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(palant.info)
Development affiliate marketing data fraud

2024 World Chess Championship: A Data-Driven Deep Dive

2024-12-18

The 2024 World Chess Championship saw Gukesh Dommaraju triumph over Ding Liren, becoming the youngest World Champion ever. This analysis uses data-driven insights, including accuracy, error types, average centipawn loss, move times, conversion rate, and comeback rate, to dissect the match. Data suggests Ding Liren exhibited slightly higher precision and consistency, but a crucial blunder in the final game proved decisive. The author concludes that while data analysis offers an objective perspective, it needs to be combined with other factors for a holistic understanding of the match's complexities.

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(medium.com)
Game data analysis

Frankfurt Silver Amulet Rewrites Early Christian History

2024-12-18

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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(archaeologymag.com)
Misc Christianity Archaeological Discovery Roman Empire

GPS Technology Explained: From Simple Positioning to Global Navigation

2024-12-18

This article provides a comprehensive explanation of GPS technology. Starting with a simple 2D positioning system, the author gradually introduces key concepts such as 3D positioning, time measurement, satellite orbits, relativistic effects, and signal processing. Through clever analogies and vivid illustrations, the author explains how GPS uses signals emitted by satellites, combined with time and distance measurements, to accurately calculate the receiver's position and time offset. The article also explores the technical details of GPS signal encoding, decoding, and anti-interference capabilities, showcasing the profound scientific and engineering foundation behind GPS technology.

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(ciechanow.ski)
Tech Global Positioning System Satellite Navigation

Railway: Automating Revenue, Not Sales

2024-12-18

Railway shares its journey of shifting from traditional sales to automated revenue growth. Initial attempts at traditional sales proved ineffective. They pivoted to a product-led growth (PLG) model and developed a regression model to predict customer upgrades or churn. This model uses factors like successful/failed builds, configured regions, support requests, and feature adoption to score customers, identifying those needing assistance. Proactive support and this targeted approach boosted revenue and customer satisfaction, leading to sustainable business growth.

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(blog.railway.com)
Startup automated revenue product-led growth regression model

Japan's $33 Billion Gamble on Chip Manufacturing

2024-12-18

Japan is investing $33 billion in building semiconductor factories in remote areas like Hokkaido, aiming to reclaim its dominance in the chip industry. This has created a construction boom and attracted a large workforce, a stark contrast to the region's relatively sluggish job market. The ambitious project is a high-stakes gamble, but reflects Japan's determination to return to the forefront of technological innovation.

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(www.bloomberg.com)
Tech chip manufacturing Japanese investment

Optimizing Ruby's JSON: Part 1

2024-12-18

This blog post details how the author optimized Ruby's `json` gem to become one of the fastest JSON parsers and generators. Instead of complex techniques, simple optimizations were applied based on profiling, such as avoiding redundant checks, prioritizing cheaper conditions, reducing setup costs, and using lookup tables. These improvements apply to both C and Ruby code. The optimizations significantly boosted the `json` gem's performance, making it competitive with alternatives like `oj`, reducing the need for monkey patching, and addressing stability and compatibility issues associated with `oj`.

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(byroot.github.io)
Development Performance Optimization

No More Adam: Learning Rate Scaling at Initialization is All You Need

2024-12-18

Researchers introduce SGD-SaI, a novel optimizer improving stochastic gradient descent. SGD-SaI addresses training imbalances by scaling learning rates at initialization for different parameter groups based on their gradient signal-to-noise ratios. Significantly more memory-efficient than AdamW, SGD-SaI matches or surpasses AdamW's performance across various Transformer-based tasks, including ImageNet classification and LLM pretraining. Its robustness and practicality are demonstrated across diverse applications, making it a compelling alternative.

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(arxiv.org)
AI

ImPlot3D: A High-Performance Immediate Mode 3D Plotting Library Based on Dear ImGui

2024-12-18

ImPlot3D is an open-source library built on top of Dear ImGui, offering developers an easy-to-use, high-performance way to create 3D plots. Independent of ImPlot, ImPlot3D supports various 3D plot types, including line plots, scatter plots, surface plots, and mesh plots, with interactive rotation, panning, and zooming. Its intuitive API, similar to Dear ImGui and ImPlot, allows for quick integration and customization of markers, lines, surfaces, and mesh styles, with options for built-in or custom colormaps. A comprehensive demo application aids users in learning and utilizing its features.

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(github.com)
Development 3D plotting

Python Meta-Circular Interpreter: Implementing a Python Interpreter in Python

2024-12-18

This article demonstrates how to create a Python meta-circular interpreter (MCI) using Python itself. An MCI is an interpreter written in the language it interprets, allowing implementation of a subset or superset of the host language. The author details the MCI's implementation, covering parsing Python source code, building an Abstract Syntax Tree (AST), traversing the AST and executing statements, and crucial concepts like scoping, symbol tables, and handling control flow statements (e.g., while loops and if statements). This example provides a deep understanding of interpreter mechanics and showcases how to leverage Python's AST module and built-in functions to build more complex interpreters.

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(rahul.gopinath.org)
Development Meta-circular Interpreter

Jupyter Notebooks: E2E Testing and Documentation in One

2024-12-18

While developing a quantum computing library, the author leveraged Jupyter Notebooks as both user guides and end-to-end tests. By reading environment variables (like SERVER_URL) within the notebooks, they achieved parameterization, allowing execution by users and automated CI/CD pipelines. Two methods for running notebooks were explored: nbclient for simplicity, and nbconvert/jq for more control but increased complexity. The author opted for nbclient's ease of use, effectively integrating documentation maintenance and code testing, ensuring the integrity of both with every merge request.

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(rakhim.exotext.com)
Development E2E testing

Bering Land Bridge Was More Swamp Than Steppe, Study Finds

2024-12-18

New research challenges the long-held assumption that the Bering Land Bridge, the ancient landmass connecting Siberia and Alaska, was a dry grassland. Using sonar and sediment cores, scientists have revealed a much wetter landscape, more akin to a swampy ecosystem with numerous rivers and lakes. This discovery complicates theories of human and animal migration across the bridge, as the watery terrain would have posed different challenges and opportunities for various species. Interestingly, mammoth DNA was found in the sediment, indicating that even in this marshy environment, large animals could thrive and traverse the area. This research offers a revised perspective on how ancient humans populated North America.

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(gizmodo.com)
Tech Bering Land Bridge ancient migration paleontology

Taming the Chaos: Centralizing and Structuring Error Handling in Go

2024-12-18

This article details the author's journey in tackling escalating error handling issues in a growing Go project. Initially, the simple approach to error handling devolved into chaos with confusing logs and untraceable errors. To solve this, a new error handling framework was designed and implemented. This framework employs a centralized, structured system using namespace codes to make errors meaningful and traceable. The core is a centralized declaration of error codes; each service layer returns only its own namespace codes, enriched with context information. The article thoroughly explains the design decisions, implementation, lessons learned, and migration strategy, offering valuable practical experience.

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(olivernguyen.io)
Development Error Handling Software Architecture

Archive Team: Rescuing Digital History from the Brink

2024-12-18

Archive Team is a loose collective of archivists, programmers, and volunteers dedicated to preserving our digital heritage. Since 2009, they've been battling website shutdowns, data deletions, and more, striving to save historical information before it's lost forever. They actively participate in various data archiving projects, offering advice on data management and recovery. Current projects include saving data from platforms like Telegram and Cohost, along with ongoing efforts for sites such as Blogger, GitHub, and Imgur.

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(wiki.archiveteam.org)
Tech digital heritage web archiving data preservation

Ergo: A Modern Go-Based IRC Server Released

2024-12-18

Ergo is a modern IRC server written in Go, designed for ease of setup and use. It combines the features of an ircd, services framework, and bouncer (integrated account management, history storage, and bouncer functionality). It boasts bleeding-edge IRCv3 support and is highly customizable via a rehashable YAML config. Key features include integrated services (NickServ, ChanServ, HostServ), native TLS/SSL support, SASL authentication, LDAP support, and advanced security and privacy features.

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(github.com)
Development IRC server

Open-Source 5-Band Equalizer a5eq.lv2 Released

2024-12-18

ashafq has released a5eq.lv2, an open-source 5-band equalizer LV2 plugin. This plugin features a low shelf, three peaking filters, and a high shelf, designed for precise audio sculpting by both amateur and professional audio engineers. It boasts high-precision filter coefficients, stereo processing, and a user-friendly interface. Compatible with any LV2-supporting host software such as Ardour and Audacity, it's easily installed and used via command line. Users can submit issues or contribute code via GitHub.

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(github.com)
Development audio processing equalizer

Exbody2: High-Fidelity Whole-Body Motion Mimicry in Humanoid Robots

2024-12-18

Researchers have developed Exbody2, a generalized whole-body tracking framework enabling humanoid robots to perform expressive motions with human-like stability. Trained in simulation using Reinforcement Learning and then transferred to the real world, Exbody2 decouples keypoint tracking from velocity control. It leverages a privileged teacher policy to distill precise mimicry skills, achieving high-fidelity replication of dynamic movements such as running, crouching, and dancing. Experiments on two humanoid platforms demonstrate superior performance compared to state-of-the-art methods, providing practical guidelines for advanced whole-body control in humanoid robotics.

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(exbody2.github.io)
AI Robotics Reinforcement Learning Whole-body Control

Google Search: Quality Decline Sparks User Frustration

2024-12-18

SEO expert Elie Berreby highlights a significant decline in Google Search quality, leading to widespread user dissatisfaction. Analyzing user feedback from non-official channels like YouTube comments, he reveals complaints about deteriorating search results, excessive advertising, and AI overviews stealing content. Google's strategy seems to prioritize monetization over user experience, potentially driving users towards alternative search engines. The article serves as a warning to Google, suggesting dire consequences if improvements aren't made.

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(semking.com)
AI Google Search Search Engine Quality AI Content Theft

Adaptable Text Editor 'ad': Blending Vim and Acme

2024-12-18

ad is a novel text editor that combines the modal editing interface of Vim and Kakoune with the extensibility approach of Plan9's Acme. ad allows users to execute text and serves as a playground for experimenting with implementing various text editor features. Currently, ad is stable enough and feature-complete enough to try out, though documentation is sparse and bugs may exist. ad's design philosophy blends Vim's modal editing, Emacs's mini-buffer, and Acme's editing commands and extensibility, aiming for a comfortable editing environment that supports direct interaction with external tools and programs.

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(github.com)
Development text editor modal editing extensibility

Quick Texture Generation: An XOR Texture Tutorial

2024-12-18

This tutorial explains how to generate an XOR texture, a simple texture created by XORing the x and y coordinates of each pixel. While not ideal for games or art, it's perfect for testing texture mappers. The article details the XOR operation, discusses the effect of texture size on color brightness, and shows how to generate similar textures using AND and OR operators. A 3D texture example using XOR is also presented.

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(lodev.org)
Development texture generation XOR operation

Design Tokens: The Key to Scalable and Consistent UI Architectures

2024-12-18

This article explores the role of design tokens in modern UI architecture. By representing design decisions as data, design tokens serve as a single source of truth, enabling automated code generation across platforms for faster updates and improved design consistency. It details the layered organization of design tokens (option, decision, and component tokens), automated distribution processes, and how to choose the appropriate number of layers and token scope. Finally, it discusses when design tokens are appropriate and their limitations, helping readers determine their suitability for their projects.

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(martinfowler.com)
Design design tokens UI architecture automated design

dLine: A Terminal-Based Calendar Tool for Efficient Schedule Management

2024-12-18

dLine is a command-line tool that presents important data in a calendar format directly within your terminal. It monitors critical dates, simplifies event addition via APIs, and calculates timespans for various event types. Designed for developers, dLine streamlines event management and schedule navigation without leaving the terminal. It features dynamic and static views, an event calculator, and robust data management capabilities including adding, deleting, viewing, and cleaning events. dLine also supports custom color schemes, user translations, and integration with Google Calendar.

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(github.com)
Development command-line tool calendar schedule management

We Built the Saturn V: The Untold Story of the Moon Rocket

2024-12-18

This article recounts the development of the Saturn V rocket, the mighty booster that propelled humans to the moon. From President Kennedy's ambitious goal to land a man on the moon, a dedicated team overcame numerous challenges, including the inherent dangers of rocket fuel, the creation of incredibly powerful engines, and the precise assembly of components from across the country. Through firsthand accounts from engineers and technicians, the article vividly portrays the immense effort and dedication behind this incredible achievement, highlighting the human cost and unwavering pursuit of technological advancement.

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(www.smithsonianmag.com)
Tech Saturn V Apollo Program Space Engineering

CSIRO Launches AI-Powered Map Visualizing Open Access Water Security Research

2024-12-18

CSIRO has released the 'Atlas of Open Water Security Science,' an interactive map visualizing the geographical distribution of open-access water science publications from its Water Security Program since 2010. Powered by AI, this 3-month trial version extracts locations and context from publications, but may contain inaccuracies. Users can explore the evolution of research, click on publications for details, and learn more about CSIRO's AI innovation in environmental science. Use with caution.

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(wateratlas.webapp.csiro.au)
Tech Water Security
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