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DIY 30kW Dynamometer: Testing Electric Boat Gearboxes

2025-04-04
DIY 30kW Dynamometer: Testing Electric Boat Gearboxes

A mechanical engineer in the electric marine industry built a custom 30kW dynamometer to test marine transmissions he designs and builds. The dyno features torque measurement, water cooling, CAN bus integration, and a Python-based dashboard. The article details the build process, challenges encountered, and technical specifics, covering motor selection, sensor integration, data acquisition, and power supply. It also shares lessons learned in noise suppression and system integration.

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(www.thriftybuilder.dev)
Hardware

Windows 11 Gets Resizable Taskbar Icons!

2025-04-04
Windows 11 Gets Resizable Taskbar Icons!

Microsoft is testing resizable taskbar icons in the latest Windows 11 Insider Preview Beta. Users can now choose to always show smaller icons, never show smaller icons, or show smaller icons when the taskbar is full. When full, icons shrink to fit, preventing overflow into a secondary menu. This mimics macOS's dock behavior. The Start menu also received an update with a larger layout, offering the option to hide recently used app suggestions and display all apps on one page. Note: users might temporarily lose the new battery charge status icons introduced in January, but Microsoft plans to reinstate them soon.

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(www.theverge.com)
Development Taskbar

Intel and TSMC JV: A Lifeline for the Struggling Chip Giant?

2025-04-04
Intel and TSMC JV: A Lifeline for the Struggling Chip Giant?

Intel and TSMC have reportedly reached a preliminary agreement to form a joint venture to operate Intel's US factories, with TSMC taking a 20% stake. This move could be a lifeline for Intel, which has struggled after missing the AI boom, suffering massive losses, and witnessing a significant stock price drop. Intel's previous attempts to manufacture chips for external clients faced challenges due to lagging customer service compared to TSMC, resulting in delays and failed tests. The success of this collaboration remains to be seen.

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(finance.yahoo.com)
Tech

Microsoft Security Copilot Uncovers Critical Bootloader Vulnerabilities

2025-04-04
Microsoft Security Copilot Uncovers Critical Bootloader Vulnerabilities

Microsoft Threat Intelligence, leveraging Microsoft Security Copilot, uncovered multiple vulnerabilities in open-source bootloaders (GRUB2, U-boot, and Barebox) impacting systems using UEFI Secure Boot and IoT devices. These vulnerabilities could allow arbitrary code execution, potentially bypassing Secure Boot and enabling the installation of persistent malware. Security Copilot significantly sped up the discovery process. Patches have been released; users are urged to update their systems.

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(www.microsoft.com)
Tech bootloaders

Beyond Reproducible Builds: Towards Idempotent Rebuilds of Debian

2025-04-04

This article explores a new goal beyond reproducible builds for Debian packages: idempotent rebuilds. The author argues that simply reproducing published packages using older build dependencies (as done by the Reproduce.Debian.net project) is insufficient, as it relies on old binary packages that cannot be rebuilt from source. Therefore, the author proposes the concept of idempotent rebuilds, where iterative rebuilding eventually leads to a state where the rebuilt packages are identical to the previous iteration. This requires addressing issues like build timestamps and non-deterministic outputs. The author has completed stage 0 of the rebuild and plans to release the build artifacts for stage 1, with the ultimate goal of being able to bootstrap a Debian binary distribution from an environment like Guix. Challenges include the presence of non-free firmware and non-Debian signed binaries which might prevent self-rebuilding.

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(blog.josefsson.org)
Development Reproducible Builds Idempotent Rebuilds

DeepMind's Blueprint for Safe AGI Development: Navigating the Risks of 2030

2025-04-04
DeepMind's Blueprint for Safe AGI Development: Navigating the Risks of 2030

As AI hype reaches fever pitch, the focus shifts to Artificial General Intelligence (AGI). DeepMind's new 108-page paper tackles the crucial question of safe AGI development, projecting a potential arrival by 2030. The paper outlines four key risk categories: misuse, misalignment, mistakes, and structural risks. To mitigate these, DeepMind proposes rigorous testing, robust post-training safety protocols, and even the possibility of 'unlearning' dangerous capabilities—a significant challenge. This proactive approach aims to prevent the severe harm a human-level AI could potentially inflict.

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(arstechnica.com)
AI

3D-Printed Heat Exchanger Offers a Cooling Breakthrough

2025-04-03
3D-Printed Heat Exchanger Offers a Cooling Breakthrough

Global air conditioning energy consumption is soaring, with ACs sometimes accounting for over 70% of residential energy demand during peak hours. MIT Technology Review highlights innovative solutions. New energy storage-based AC systems charge during off-peak hours, reducing grid strain. Energy-efficient desiccant cooling systems handle humidity more effectively. Excitingly, researchers 3D-printed a heat exchanger outperforming standard designs, paving the way for AC innovation. While a complete solution to the looming AC crisis remains distant, this breakthrough offers hope for energy efficiency. Policy and public support are crucial for widespread adoption.

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(www.technologyreview.com)
Tech air conditioning energy consumption heat exchanger

Bonobos' Complex Language: Beyond the Sum of its Parts

2025-04-03
Bonobos' Complex Language: Beyond the Sum of its Parts

Swiss scientists have discovered that bonobos can combine simple vocalizations into complex semantic structures, meaning their communication is more than just a sum of individual calls; it exhibits non-trivial compositionality—a trait once thought to be uniquely human. Researchers built a massive database of bonobo calls and used distributional semantics to decipher their meaning, offering a valuable insight into bonobo communication in the wild. This research was laborious, requiring researchers to wake early, trek to bonobo nests, and record calls and contextual information throughout the day.

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(arstechnica.com)
AI bonobos

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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(github.com)
Development

Microsoft's Cloud PC, Windows 365 Link, Now Available for $350

2025-04-03
Microsoft's Cloud PC, Windows 365 Link, Now Available for $350

Microsoft has launched its business-oriented mini-desktop PC, Windows 365 Link, for $349.99. This device connects directly to Microsoft's Windows 365 cloud service, simplifying IT management and reducing support needs. Similar to a traditional thin client, it operates over the internet, enabling work from anywhere, and boasts a boot time of seconds. Microsoft states that over 100 organizations tested it, refining the software experience before release. Currently available in the US, Canada, Australia, UK, Germany, Japan, and New Zealand, it's exclusively for businesses and requires purchase through a Microsoft account team or authorized reseller.

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(www.theverge.com)
Tech cloud PC thin client

Generative AI is Eating Away at OSINT Analysts' Critical Thinking

2025-04-03

The increasing reliance on generative AI tools in OSINT (Open Source Intelligence) investigations is leading to a decline in critical thinking among analysts. Studies show that over-reliance on AI reduces critical thinking, making users more susceptible to accepting AI-generated misinformation. Real-world scenarios illustrate the potential dangers of AI in OSINT, highlighting the vital need for manual verification. The article urges OSINT practitioners to prioritize critical thinking, treating AI as a supplementary tool rather than the decision-maker. It advocates for intentionally introducing friction to avoid over-dependence on AI, thus preserving accuracy and integrity in OSINT.

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(www.dutchosintguy.com)
Tech

Slipstream: A Data-Flow Model for Stateful Streaming Applications

2025-04-03

Slipstream simplifies the development of stateful streaming applications using a Python-based data-flow model. It supports diverse sources (Kafka, streaming APIs, etc.) and sinks (Kafka, RocksDB, APIs), allowing arbitrary stateful operations (joins, aggregations, filtering) with regular Python code. A simple timer example showcases its ease of use; creating a timed task requires just a few lines. Slipstream emphasizes simplicity, freedom, and speed, offering optimized defaults for quick setup and execution.

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(slipstream.readthedocs.io)
Development data flow

Was Houdini a Spy? The Magician's Secret Life and the CIA's Lost Manuals

2025-04-03

Harry Houdini, the world-famous magician, had a profound, unexpected influence on espionage. Declassified CIA documents reveal that the agency used Houdini's escape techniques, among others, to train clandestine officers in deception. While rumors persist of Houdini acting as a spy for various agencies, concrete evidence remains scarce. Historians debate whether he was a full-fledged spy or simply an 'observer' providing intelligence to President Theodore Roosevelt. This intriguing story blends magic, espionage, and historical mystery.

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(www.cia.gov)
Misc Houdini Magic

OpenVMS Codebase: A 35-Year Journey of Explosive Growth

2025-04-03

A researcher meticulously analyzed the size of the OpenVMS (VMS) codebase over 35 years. By counting lines of code across 15 key components in various releases (V6.2, V7.2, V8.2, V9.2-3), the study revealed a nearly threefold increase in code size, from hundreds of thousands of lines to almost two million. The shift in programming languages from BLISS and MACRO-32 to C was also highlighted. This research offers valuable insights into the architecture and evolution of large-scale operating systems.

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(vmssoftware.com)
Development Codebase Size OS Evolution

Senior Devs: Mastering AI-Powered Coding Tools

2025-04-03
Senior Devs: Mastering AI-Powered Coding Tools

This article details the author's positive experiences using AI coding tools in both personal and professional projects. The author finds that experienced developers are uniquely positioned to leverage these tools effectively, viewing the AI as a highly knowledgeable junior developer requiring guidance. Three key success factors are highlighted: well-structured requirements, robust quality assurance tools, and pre-defined code file structures. Two project examples (greenfield and brownfield) demonstrate significant productivity gains, even for developers unfamiliar with the tech stack. The article concludes that success hinges on leveraging traditional software engineering best practices alongside this new technology.

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(manuel.kiessling.net)
Development

AI Cheats: Why You Didn't Notice Your Teammate Was Cheating

2025-04-03
AI Cheats: Why You Didn't Notice Your Teammate Was Cheating

Game cheating has evolved rapidly, from memory-reading aimbots to colorbots, and now AI-powered aim assist. A veteran cheat developer shares their journey, starting at age 12, detailing the inner workings of AI cheats. These cheats, essentially advanced colorbots, use AI models to identify enemies, making them incredibly difficult to detect. While modern cheats are expensive and risky, their subtlety makes them nearly invisible unless poorly configured. The article reveals the latest trends in game cheating and the challenges faced by anti-cheat technology.

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(niila.fi)
Game

arXivLabs: Experimental Projects with Community Collaborators

2025-04-03
arXivLabs: Experimental Projects with Community Collaborators

arXivLabs is a framework enabling collaborators to develop and share new arXiv features directly on our website. Individuals and organizations partnering with arXivLabs embrace our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners who adhere to them. Have an idea for a project that will benefit arXiv's community? Learn more about arXivLabs.

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(arxiv.org)
Development

Installing AIX 1.3 on a 486: A Retro Computing Odyssey

2025-04-03

After contracting COVID-19, the author embarked on a nostalgic project: installing AIX 1.3 on their aging 486 computer. This Franken-486, a collection of parts accumulated over three decades, presented numerous hurdles. The installation process involved 94 floppy disk images, grappling with IDE interface issues, VGA compatibility problems, and corrupted installation disks. The author's troubleshooting journey included swapping graphics cards, hard drives, recreating installation disks, and even crafting a custom VGA cable, yet the installation ultimately failed. This anecdote reflects a passion for retro computing and perseverance in overcoming technical challenges, highlighting the quirks and complexities of older hardware.

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(hardwarehacks.org)
Hardware hardware installation

Topological Sort Algorithm Variant: Efficiently Handling Dependencies

2025-04-03
Topological Sort Algorithm Variant: Efficiently Handling Dependencies

This article presents an improved topological sorting algorithm based on Kahn's algorithm, but it treats nodes as sets instead of individual nodes. The algorithm iteratively finds the root sets of the graph, removes them, and repeats until the graph is empty. The order of the removed root sets forms a topological order, and nodes within the same root set are independent and can be processed in parallel. The algorithm can also detect cycles and return a partial topological ordering instead of completely aborting.

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(github.com)
Development topological sort graph algorithm

Hatchet: A Robust Background Task Platform Built on Postgres

2025-04-03
Hatchet: A Robust Background Task Platform Built on Postgres

Hatchet simplifies background task management by leveraging Postgres. Forget complex queues and pub/sub systems; Hatchet lets you distribute functions across workers with minimal configuration. It boasts features like complex workflow chaining (DAGs), failure alerting, durable tasks, and a real-time web dashboard. Robust flow control, including concurrency and rate limiting, ensures application stability. Hatchet supports Python, Typescript, and Go, and offers cloud and self-hosted options.

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(github.com)
Development background tasks

Tariffs Hammer the Bike Industry: Price Hikes and the Onshoring Struggle

2025-04-03
Tariffs Hammer the Bike Industry: Price Hikes and the Onshoring Struggle

Newly imposed US tariffs are dramatically impacting the bicycle industry. The article analyzes the effects on bikes and parts from various countries (China, Vietnam, Cambodia, Thailand, Taiwan, Japan, EU, etc.), predicting significant price increases, especially for high-end products. While the US encourages onshoring, the lack of infrastructure and specialized expertise presents massive challenges for domestic production of performance bike components. The conclusion notes that bike prices will rise and selection will shrink, but cycling enthusiasts will continue to enjoy the ride.

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(www.renehersecycles.com)
Tech bicycle industry

AI Image Generation: Ghibli-esque Mimicry Raises Copyright Concerns

2025-04-03
AI Image Generation: Ghibli-esque Mimicry Raises Copyright Concerns

A recent update to GPT image generation allows users to transform any picture into a Studio Ghibli-esque style. This showcases AI's impressive ability to mimic styles, but also raises significant copyright concerns. The author conducts an experiment, demonstrating GPT's ease in generating images strikingly similar to well-known IP characters, even without explicitly mentioning the IP. This is both amazing and alarming, highlighting the potential for AI to facilitate intellectual property theft. While laws allow for mimicking visual styles, the precision of the mimicry pushes the boundaries of copyright law, prompting reflection on the relationship between AI development and copyright protection.

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(theaiunderwriter.substack.com)
AI

Tenstorrent Unveils Blackhole™ AI Accelerator Cards and Developer Hub

2025-04-03
Tenstorrent Unveils Blackhole™ AI Accelerator Cards and Developer Hub

Tenstorrent has launched its new Blackhole™ AI accelerator cards, featuring all-new RISC-V cores designed for efficient handling of massive AI workloads and offering an infinitely scalable solution. The Blackhole™ product line includes single-processor versions (p100 and p150, priced at $999 and $1299 respectively) and a four-processor liquid-cooled workstation, the TT-Quietbox ($11,999). The next-generation Blackhole™ PCIe cards boast a 6nm manufacturing process, faster Network-on-Chip (NoC), higher memory density, and additional integrated RISC-V cores. Alongside the hardware, Tenstorrent also launched a Developer Hub providing model support, tutorial videos, bounties, and resources for the developer community. All Blackhole™ cards and the TT-Quietbox are fully supported by Tenstorrent's open-source software stack, including TT-Forge™, TT-NN™, TT-Metalium™, and TT-LLK.

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(tenstorrent.com)
Hardware

Trump's Tariffs: A Protectionist Repeat of History

2025-04-03
Trump's Tariffs: A Protectionist Repeat of History

Trump's latest round of tariffs has sparked reflection on the history of US protectionism. The article uses the US shipbuilding industry as a cautionary tale, showing how protectionist policies stifle innovation and lead to industry decline. From the Tariff Act of 1789 to today, the US repeats the same mistakes; high tariffs haven't protected domestic industries but increased consumer costs and harmed US competitiveness. Experts warn this will particularly hurt the clean energy sector, reliant on imported components. Ultimately, protectionism hinders innovation and backfires.

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(grist.org)
Tech protectionism

Fashion Forecasts Recession: Are We Headed for a 2025 Economic Downturn?

2025-04-03
Fashion Forecasts Recession: Are We Headed for a 2025 Economic Downturn?

Warning signs of a 2025 recession are everywhere. The stock market is down, CFOs are pessimistic, and looming tariffs add to the gloom. But economic anxieties aren't just reflected in financial reports; fashion trends subtly hint at economic uncertainty. Recent runway shows reveal a return to simple suits, neutral colors, and conservatively long hemlines, echoing the style of the 2008 financial crisis. These trends reflect a growing budget consciousness and a desire for practicality among consumers. Analysts point to a surge in searches for maxi skirts, minimalist styles, and corporate attire, signaling declining consumer confidence. The fashion world seems to be bracing for an impending economic downturn, with designers opting for more durable, versatile pieces in muted colors.

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(www.marieclaire.com)
Misc fashion trends

Intel Reboots 'Intel Inside': 30 Years Later, the Brand Gets a Reboot

2025-04-03
Intel Reboots 'Intel Inside': 30 Years Later, the Brand Gets a Reboot

Thirty years ago, 'Intel Inside' took the world by storm, inextricably linking Intel with the personal computer. Now, at its Vision 2025 event in Las Vegas, Intel has redefined its iconic brand. The new slogan, "That's the power of Intel Inside," not only evokes nostalgia but emphasizes the crucial role Intel, its partners, and customers play in today's world. From its initial focus on processors, to the integrated Centrino platform, and the performance-driven Core series, Intel Inside has evolved alongside technology, ultimately returning to its core brand value: highlighting how Intel technology empowers individuals and the global community. This rebranding reignites the brand's passion.

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(www.tomshardware.com)
Tech

WebKit's Declarative Web Push: More Efficient, More Private

2025-04-03
WebKit's Declarative Web Push: More Efficient, More Private

WebKit introduces Declarative Web Push to address power consumption and privacy concerns with traditional Web Push. Traditional Web Push relies on Service Workers, making it vulnerable to Intelligent Tracking Prevention (ITP) and prone to subscription revocation due to processing failures. Declarative Web Push allows for sending and displaying notifications without a Service Worker, embedding notification content directly in the push message. This enhances efficiency and privacy while maintaining backward compatibility with existing Web Push.

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(webkit.org)
Development

Supabase Launches Declarative Schemas for Easier Database Management

2025-04-03
Supabase Launches Declarative Schemas for Easier Database Management

Supabase has released declarative schemas, a streamlined approach to managing and maintaining complex database schemas. By defining database structure in version-controlled .sql files, developers gain centralized management, reducing redundancy and errors. This is particularly beneficial for complex databases, like Supabase's own projects table with RLS policies and trigger functions, dramatically improving development speed—reducing schema updates from hours to minutes. This simplifies code reviews and makes parallel development significantly easier.

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(supabase.com)
Development declarative schema

GitMCP: Empowering AI to Deeply Understand GitHub Code

2025-04-03
GitMCP: Empowering AI to Deeply Understand GitHub Code

GitMCP creates a dedicated Model Context Protocol (MCP) server for any GitHub project, allowing AI assistants to understand your code within its context. It reads files like README.md and code comments, providing AI assistants with more accurate and relevant information. Setup is straightforward; simply point to your GitHub repository and connect your AI tools. GitMCP works seamlessly with any public GitHub repository and GitHub Pages, making your documentation and code easily accessible to AI tools.

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(gitmcp.io)
Development Code Understanding
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