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OpenAI Bans Chinese Users for Using ChatGPT to Develop AI Surveillance Tool

2025-02-22

OpenAI Bans Chinese Users for Using ChatGPT to Develop AI Surveillance Tool

OpenAI banned a group of Chinese users for attempting to use ChatGPT to debug and edit code for an AI-powered social media surveillance tool. The tool monitored anti-Chinese sentiment on platforms like X, Facebook, and YouTube, with the intention of sharing insights with Chinese authorities. OpenAI detected the users' activities, noting their consistent use of ChatGPT during Chinese business hours and the high volume of prompts suggesting manual, rather than automated, operation. This marks the first time OpenAI has uncovered such an AI tool, raising concerns about the misuse of AI technology.

(www.engadget.com)

Tech AI surveillance

Werk: A Simple, Cross-Platform Build System

2025-01-13

Tired of Make's complexity? Simon Ask Ulsnes created Werk, a simplistic build system and command runner designed to address the shortcomings of Make and Just. Werk supports cross-platform builds, handles complex dependencies, and provides a user-friendly experience. Written in Rust and leveraging async/await for efficient concurrency management, it avoids common synchronization bugs. The article details Werk's design philosophy, usage, and comparison with other build tools, sharing the author's experience and insights in developing Werk.

(simonask.github.io)

Development

Cheap PV Modules Upend Solar Array Landscape?

2025-05-03

Cheap PV Modules Upend Solar Array Landscape?

As PV module prices continue to fall, simple fixed East-West arrays are now cheaper and faster to install than the industry-standard single-axis tracked arrays. While single-axis trackers still significantly outperform East-West arrays in energy production per panel, their higher cost makes them less competitive in some regions, especially when facing extreme weather like hail. East-West arrays offer lower material and labor costs, less land usage, and increasing economic benefits as PV module prices decline. However, single-axis trackers retain an advantage in areas prone to hail due to their superior resilience. The optimal choice depends on location, weather conditions, and the balance between cost and risk.

(terraformindustries.wordpress.com)

Tech photovoltaic

Register Allocation in Compilers: A Deep Dive

2025-02-17

This article provides a clear explanation of the complexities of register allocation in compilers. Starting with a simple function example, it demonstrates how variables are mapped to registers and how stack space (spilling) is used when registers are insufficient. The article details two algorithms, linear scan and graph coloring, and explores additional challenges in real-world architectures, such as calling conventions and instruction set limitations. Even seemingly simple register allocation is fraught with optimization and trade-off challenges, making it a remarkably challenging aspect of compiler implementation.

(langdev.stackexchange.com)

Development register allocation

The Housing Market's Fragility: Is Building More the Answer?

2025-07-21

The Housing Market's Fragility: Is Building More the Answer?

The prevailing belief is that increasing housing supply will lower prices and solve the affordability crisis. However, recent price drops in several US cities have triggered panic, not celebration. Developers are pulling out, lenders are tightening, and policymakers are scrambling to bail out the system. The article argues the problem isn't a lack of supply, but the fragility of the financial system. The current housing market treats homes as financial products, not shelter; price drops are seen as risk signals, leading to decreased, not increased, supply. The article calls for a bottom-up approach, focusing on local, small-scale affordable housing to build a healthier, more resilient housing ecosystem, rather than relying on national-level financial engineering and subsidies.

(clmarohn.substack.com)

Tech real estate market

ams OSRAM Launches Compact Direct Time-of-Flight Sensor Modules

2025-09-21

ams OSRAM Launches Compact Direct Time-of-Flight Sensor Modules

ams OSRAM has introduced new compact, low-power direct time-of-flight (ToF) sensor modules. These modules integrate a 940nm VCSEL laser, a SPAD pixel array, Time-to-Digital Converters (TDCs), and all necessary signal processing for direct distance readout via I2C. Available in single and multi-zone (up to 8x8) configurations, they come in packages as small as 2.2x3.6x1.0mm, with operating ranges and fields of view up to 5m and 63 degrees respectively. Applications include autofocus for cameras and projectors, obstacle detection for robotics and drones, low-power wake-up for camera systems, touchless controls, and hand gesture sensing.

(ams-osram.com)

Hardware ToF sensor 3D sensing

Multiple Dispatch in C++: Challenges and Solutions

2025-09-11

This article explores the challenges of implementing multiple dispatch in C++. Multiple dispatch allows dynamic function selection based on the runtime types of multiple objects, useful when handling interactions between objects of different types, such as computing intersections of various shapes. The article compares several approaches, including the visitor pattern and brute-force if-else checks, analyzing their pros and cons. The visitor pattern, while efficient, is intrusive and hard to maintain; brute-force is maintainable but verbose and inefficient. The article also briefly mentions a C++ standardization attempt proposing multiple dispatch and previews subsequent articles exploring its implementation in other programming languages.

(eli.thegreenplace.net)

Development

TailGuard: Dockerizing WireGuard-Tailscale Interoperability

2025-09-11

TailGuard: Dockerizing WireGuard-Tailscale Interoperability

TailGuard is a simple Docker container app that bridges existing WireGuard servers to the Tailscale network, even on locked-down devices lacking Tailscale binaries. Running on a VPS, it simplifies key management and allows easy switching between devices. Users download a WireGuard config, run a Docker command, and connect. Customizable parameters and IPv6 support ease connection to both Tailscale and WireGuard networks.

(github.com)

Development

Tesla's FSD: From Full Self-Driving to Advanced Driver-Assistance System

2025-09-06

Tesla's long-standing promise of unsupervised autonomous driving with its Full Self-Driving (FSD) capability remains unfulfilled. Tesla has quietly redefined FSD, downgrading it from fully autonomous driving to an "advanced driver-assistance system," no longer promising unsupervised self-driving. This shift is linked to Elon Musk's massive stock option bonus package, which hinges on the number of Tesla FSD subscribers. While seemingly tying Musk's reward to FSD delivery, the new definition allows even the current version—requiring constant driver supervision—to easily meet the criteria. This raises concerns about Tesla's misleading marketing and bait-and-switch tactics, highlighting the massive gap between its promises and the reality of its autonomous driving technology.

(electrek.co)

Tech

Dr.TVAM: An Inverse Rendering Framework for Tomographic Volumetric Additive Manufacturing

2025-01-17

Dr.TVAM: An Inverse Rendering Framework for Tomographic Volumetric Additive Manufacturing

Dr.TVAM is an inverse rendering framework for tomographic volumetric additive manufacturing (TVAM) built on the Mitsuba renderer. It leverages physically-based differentiable rendering to optimize patterns for TVAM, supporting scattering printing media, arbitrary vial shapes, and projector motions. An improved discretization scheme for the target shape is also included. A command-line tool and comprehensive documentation are provided for easy customization and optimization.

(github.com)

Development inverse rendering volumetric additive manufacturing Mitsuba renderer

Procolored Printer Software Found to Contain Malware; $100k Stolen

2025-05-19

Procolored Printer Software Found to Contain Malware; $100k Stolen

A YouTuber reviewing a Procolored UV printer discovered malware in the accompanying software, triggering a security alert. Security firm G Data investigated and found the software contained SnipVex, a cryptocurrency stealer that stole roughly $100,000 in Bitcoin. The attacker used clipboard manipulation to replace Bitcoin addresses and infected executable files. Procolored responded that the software was likely infected during transfer, removed the software, and provided a clean version. Security experts recommend users thoroughly check their systems and reinstall if necessary.

(www.neowin.net)

Tech

Nobel Prize Winners: A Data-Driven Look at Scientific Concentration and Dispersion

2025-03-26

Nobel Prize Winners: A Data-Driven Look at Scientific Concentration and Dispersion

This analysis examines data on Nobel Prize winners in Physics, Chemistry, and Medicine from 1915 to 2016, revealing a concentration of scientific achievements. A small number of countries, primarily the US, UK, and Germany, and elite universities like Harvard and Cambridge, dominate Nobel Prize wins. However, a long tail effect is also observed, with many other countries and institutions contributing. Furthermore, the average age of laureates and the time lag between completing prize-winning work and receiving the award are increasing, potentially indicating a slowdown in groundbreaking discoveries or inherent delays in the Nobel Prize selection process.

(www.construction-physics.com)

Tech

Knight Ride: A Strategic Chess-like Puzzle

2025-04-01

Knight Ride is a strategic puzzle game where you guide a knight to a target square within a limited number of moves. Earn points for speed, avoiding attacks, and capturing opponent pieces. Capturing pieces awards extra moves and points (Pawn: 1, Knight/Bishop: 3, Rook: 5, Queen: 9). Capture streaks yield bonus points. Moving to an attacked square costs a point, and capturing all pieces doubles your score. Run out of moves, and it's game over!

(knightride.rakhim.org)

Game

Crafting Compelling Software Release Announcements

2025-06-25

Crafting Compelling Software Release Announcements

This article unveils the secrets to writing engaging software release announcements. The author stresses focusing on improved user experience, not just a laundry list of features. Examples show how to translate technical details into user-perceived benefits – framing bug fixes as improvements to the user experience, not merely bug eliminations. The article advocates for clear screenshots, concise animated demos, and planning the announcement early in development to ensure it directly relates to user value, avoiding vague phrases like "various improvements and bug fixes."

(refactoringenglish.com)

Development

Major Upgrade to Virtual World River Simulation

2025-06-29

Major Upgrade to Virtual World River Simulation

A virtual world simulation program has undergone a major upgrade, improving the accuracy of river flow simulation. Previously, the program only stored river flow data for January and July at each point, calculating other months' data using extrapolation, but this method was inaccurate. After the upgrade, the program now stores river flow data for all twelve months of the year and calculates downstream flow by accumulating upstream flow, resulting in a more accurate simulation of river flow variations. The article uses three examples of different river systems to showcase the improved simulation results and the differences in river flow under different climatic conditions. This makes the virtual world's river system more realistic and the seasonal variations more noticeable.

(undiscoveredworlds.blogspot.com)

Game virtual world river simulation climate simulation

Cua: Building Safe & Scalable Infrastructure for General AI Agents

2025-07-02

Cua: Building Safe & Scalable Infrastructure for General AI Agents

Cua is building the infrastructure enabling general AI agents to safely and scalably use computers and apps like humans do. They offer an open-source framework for building and evaluating general-purpose AI agents, and a cloud container platform for sandboxed, scalable agent execution environments. They're seeking a Founding Engineer to help turn cutting-edge research prototypes into real, deployable systems. This is a chance to shape how agents run in production.

(www.ycombinator.com)

AI

Game-Changing TCA Printing: Robust, Conformal Circuits on Any Surface

2025-02-16

Game-Changing TCA Printing: Robust, Conformal Circuits on Any Surface

A groundbreaking printing technique called TCA creates incredibly robust and high-resolution circuits on virtually any 3D surface, from curved glass to even chili peppers and eggshells! By embedding conductive materials within an adhesive, TCA creates a deeply interlocked interface, dramatically improving durability against scratching, high temperatures, and bending—even withstanding liquid nitrogen. This technology promises to revolutionize flexible electronics, sensors, and energy storage, opening doors for wearables, smart devices, and extreme environments.

(www.nature.com)

Hardware TCA printing flexible circuits

Generative AI Coding Tools: My Personal Experience

2025-06-17

Generative AI Coding Tools: My Personal Experience

The author shares their personal experience using generative AI coding tools, concluding that they haven't improved their workflow. While AI can generate code quickly, the author finds that thorough code review is necessary to ensure quality and reliability, and this review often takes as long as writing the code itself. Furthermore, AI-generated code lacks contextual understanding and learning capabilities, like an intern with anterograde amnesia, unable to retain knowledge. The author believes that those claiming AI coding tools increase productivity are either lowering quality standards or benefitting from selling AI.

(blog.miguelgrinberg.com)

Development

Efficient Datalog Querying with SQL: A Clever Environment-Relation Approach

2025-08-31

This article presents a novel approach to translating Datalog programs into SQL queries. The author cleverly leverages the relational algebra capabilities of SQL, representing the variable binding environments from the Datalog program body as relations. This allows for efficient execution of Datalog queries using existing SQL engines. The method is not only clean but also allows for semi-naive evaluation using the dual number trick, further boosting performance. The article includes Python and SQL code examples, along with performance comparisons against other Datalog engines.

(www.philipzucker.com)

Development

E Ink Unveils Giant 75-Inch Color ePaper Outdoor Display

2025-02-11

E Ink Unveils Giant 75-Inch Color ePaper Outdoor Display

E Ink, in partnership with Samsung, LG, and others, showcased a massive 75-inch Kaleido Outdoor 3 color e-paper display at ISE 2025. This low-power display, operating in temperatures from -15°C to 65°C, boasts 4,096 colors and International Dark-Sky Association certification for reduced light pollution. Ideal for outdoor digital signage like bus stop ads, it's touted as a solar-powered, eco-friendly alternative to energy-hungry LCD and LED screens.

(newatlas.com)

Hardware e-paper outdoor display energy efficient

Kubernetes Spec v1.32 Released: Comprehensive Resource Reference Guide

2024-12-12

Kubernetes Spec v1.32 Released: Comprehensive Resource Reference Guide

kubespec.dev has released a reference guide and documentation for Kubernetes Spec v1.32, providing comprehensive documentation for all built-in resources, properties, types, and examples. The guide covers workloads, cluster, networking, configuration, storage, administration, and access control, enabling users to quickly find and understand Kubernetes functionalities. The project is open-source and accepts contributions.

(kubespec.dev)

Development Documentation

Apple's Hidden History: A Mac Font's Secrets

2025-08-09

Apple's Hidden History: A Mac Font's Secrets

Hidden within macOS's Apple Symbols font lies a treasure trove of Apple's past. From the now-defunct FireWire to the Newton PDA, icons representing forgotten technologies persist. Even the PowerPC processor and the original QuickTime logo make appearances. This font acts as a time capsule, showcasing Apple's evolution. While newer icon libraries exist, these historical remnants remain in the Apple Symbols font, a fascinating glimpse into tech history.

(www.spacebar.news)

Tech Font

MIT's Tactile Vega-Lite: Making Charts Accessible to the Visually Impaired

2025-04-09

MIT's Tactile Vega-Lite: Making Charts Accessible to the Visually Impaired

Researchers at MIT's CSAIL have developed Tactile Vega-Lite, a program that transforms data from sources like Excel spreadsheets into both standard visual charts and tactile charts. This tool streamlines the design process for tactile charts, incorporating design standards to help educators and designers quickly create accessible charts for the visually impaired. Users can easily understand information presented in various graphics, such as bar charts comparing minimum wages or line graphs tracking GDPs. Future improvements include a refined user interface and machine-specific customizations for enhanced usability and accuracy.

(news.mit.edu)

Development Tactile charts Data visualization

Python Conquers CUDA: NVIDIA's Native Python Support Ushers in a New Era of GPU Programming

2025-04-04

In 2024, Python surpassed JavaScript to become the world's most popular programming language. At GTC, NVIDIA announced native Python support for its CUDA toolkit, revolutionizing GPU programming. Developers can now use Python directly for algorithmic computing on GPUs without needing C++ expertise. NVIDIA built Pythonic CUDA, not a simple translation of C, but a natural interface for Python developers. This includes components from runtime compilers to cuPyNumeric (a NumPy replacement), and introduces the CuTile programming model, simplifying GPU programming's complexity. This massively expands CUDA's developer base, especially promising in emerging markets like India and Brazil.

(thenewstack.io)

Development

Bosch's Revolutionary Brake-by-Wire System Hits the Road

2025-02-18

Bosch's Revolutionary Brake-by-Wire System Hits the Road

Bosch has completed public road testing of its innovative brake-by-wire system, eliminating the mechanical link between brake pedal and brakes. This system, using electric signals, reduces weight and improves space efficiency. Already receiving automaker orders, Bosch projects over 5.5 million vehicles globally will feature this technology by 2030. The system boasts dual redundancy for safety, offers design flexibility, and promises enhanced braking performance and safety. While motorcycle applications face challenges, this technology represents a significant leap forward for automotive braking.

(newatlas.com)

Tech brake-by-wire automotive technology Bosch

Leaked Xbox UI Hints at Steam Game Integration

2025-03-21

Leaked Xbox UI Hints at Steam Game Integration

Microsoft accidentally leaked, then quickly removed, an image showcasing a new Xbox UI. The image reveals a cross-device UI seemingly capable of displaying Steam games. Sources say Microsoft is developing an Xbox app update to list all PC games, including those from Steam and the Epic Games Store. While still early in development, this suggests a potential move towards greater PC game platform integration, solidifying the Xbox app as a central hub for PC gaming.

(www.theverge.com)

Game Cross-Platform Gaming

Elevating Rust CLIs: Type-Driven Design for Robustness and Maintainability

2025-07-01

Elevating Rust CLIs: Type-Driven Design for Robustness and Maintainability

This article champions a type-driven approach to building command-line interfaces (CLIs) in Rust using the clap crate. Instead of relying on string parsing, the author advocates for defining the CLI interface using Rust's type system. This offers several key advantages: improved code maintainability and readability, reduced test surface area and better mock support for unit tests, and easier semantic versioning. The article details clap's derive and env features, showcasing how to define command-line arguments and environment variables using types, resulting in more robust and maintainable CLIs.

(tucson-josh.com)

Development

Rivulet: A Programming Language Inspired by Calligraphy

2025-06-23

Rivulet: A Programming Language Inspired by Calligraphy

Rivulet is a unique programming language that eschews traditional keywords, instead adopting a visual style reminiscent of calligraphy. Code is written in flowing lines, its logic unlike most programming languages, more akin to the evolution of a natural language. The speaker will introduce Rivulet alongside other esoteric programming languages drawing from lesser-known aspects of natural and constructed languages, showcasing their ambiguity and expressive power. Rivulet code represents the number zero in seven different ways using 'strands', whose combinations form 'glyphs'. Its visual style is inspired by mazes, Anni Albers' work, and space-filling algorithms.

(media.ccc.de)

Development calligraphy

Hacking a Satellite Back to Life: The BEESAT-1 Resurrection

2025-01-04

Hacking a Satellite Back to Life: The BEESAT-1 Resurrection

In 2013, Technische Universität Berlin's BEESAT-1 satellite stopped sending valid telemetry data. Projected to remain in orbit for another 20 years, its recovery would unlock new experiments. However, the satellite lacked both telemetry and software update capabilities. This talk recounts the story of how, by combining space and cybersecurity expertise, the fault was diagnosed without telemetry, software updates were implemented without the existing feature, and the satellite was resurrected in September 2024. The journey involved overcoming significant hurdles, including working with 15-year-old software and hardware and devising a method to upload new software without the standard update mechanism. The presentation details the entire recovery process, highlighting the unexpected challenges and successes.

(media.ccc.de)

Tech Satellite Repair

Deleting My Second Brain: A Digital Minimalist's Journey

2025-06-28

Deleting My Second Brain: A Digital Minimalist's Journey

The author spent years building a "second brain" PKM system, only to find it had become a graveyard of information, hindering thought and creativity. He deleted everything, opting for a lighter, experience-focused approach. He realized true knowledge isn't stored in databases but lived and acted upon. This essay explores the pitfalls and reflections of personal knowledge management and the value of returning to authenticity and experience.

(www.joanwestenberg.com)

Misc

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