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Hacking Symbolic Algebra with Anthropic's MCP: A Wild West Adventure

2025-05-22

This post details an experiment using Anthropic's Model Context Protocol (MCP) to overcome LLMs' limitations in symbolic math. MCP lets LLMs call external tools. The author integrated an LLM with SymPy, a computer algebra system, to solve a damped harmonic oscillator equation. While the MCP ecosystem is rough around the edges and presents security risks (running locally!), the successful integration of these components highlights the potential of this approach. Combining LLMs with specialized tools like SymPy could revolutionize how we interact with complex mathematical computations.

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(www.stephendiehl.com)
Development

Auto-Saving Rails Forms with Turbo Streams: A Hotwire Approach

2025-01-09
Auto-Saving Rails Forms with Turbo Streams: A Hotwire Approach

This article demonstrates how to implement auto-saving for inline input fields in Rails applications using Turbo Streams, a component of the Hotwire framework. A Stimulus controller automatically submits the form on blur, leveraging Turbo Streams to update the UI without page reloads. The author highlights the importance of unique input IDs and using `title_previously_changed?` for efficient user feedback, creating a seamless autosave experience.

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(nts.strzibny.name)
Development

Open Source Contributions vs. High-Paying Jobs: LeetCode Wins?

2025-05-15

Five years after graduation, a programmer with a wealth of open-source projects under his belt found that his years of dedication hadn't translated into a high-paying job. He worked for two startups, putting in long hours for meager pay. Ultimately, he had to abandon his beloved open-source projects and grind LeetCode, resulting in a 5x salary increase but also a loss of the joy and fulfillment he once had. This article reveals a harsh reality: the job market values leetcode and FAANG experience more than real-world project contributions.

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(lemmy.ml)
Development

The Internet of Agents: Building the Future of AI Collaboration

2025-03-31
The Internet of Agents: Building the Future of AI Collaboration

Agentic AI is rapidly evolving, but the lack of shared protocols for communication, tool use, memory, and trust keeps systems siloed. To unlock their full potential, we need an open, interoperable stack – an Internet of Agents. This article explores key architectural dimensions for building this network, including standardized tool interfaces, agent-to-agent communication protocols, authentication and trust mechanisms, memory and context sharing, knowledge exchange and inference APIs, economic transaction frameworks, governance and policy compliance, and agent discovery and capability matching. The author argues that shared abstractions are crucial to avoid fragmentation and enable scalable, composable autonomous systems.

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(www.anup.io)
AI interoperability protocol standards

Resurrecting a Caltech DEC Pro 380: A Retro Hardware Upgrade

2025-03-22
Resurrecting a Caltech DEC Pro 380: A Retro Hardware Upgrade

This article details the author's journey upgrading a vintage DEC Professional 380 computer, a relic from Caltech, based on the PDP-11 architecture. This machine represents one of DEC's less successful forays into the personal computer market, but its robust build and unique design remain fascinating. The author meticulously documents the upgrade process, including replacing the aging hard drive with an SSD and upgrading the RAM, alongside experiences using the PRO/VENIX operating system. Interwoven is a compelling history of DEC's struggles in the PC market and the evolution of the PDP-11 architecture, making for a technically detailed and engaging read.

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(oldvcr.blogspot.com)
Hardware

All the HTML Elements: A Comprehensive Guide

2025-01-25

This article playfully explores every HTML element, from common headings, paragraphs, and lists to lesser-known elements like `` and ``, and even deprecated elements such as `` and ``. An interactive survey is included to test your understanding. It's a fun and comprehensive journey through the world of HTML, showcasing its richness and versatility.

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(iamwillwang.com)
Development HTML elements

Ollama's MIT License Compliance Issue

2025-05-16
Ollama's MIT License Compliance Issue

Ollama, an open-source large language model client based on llama.cpp, is facing a license compliance issue. The user reports that the copyright notice for llama.cpp, required by the MIT license, is missing from Ollama's binary distributions. This necessitates the addition of the appropriate copyright information to the binaries to ensure compliance with the MIT license.

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(github.com)
Development MIT license

Budget Cuts to National Weather Service Lead to Delayed Tornado Warnings, Casualties

2025-05-18
Budget Cuts to National Weather Service Lead to Delayed Tornado Warnings, Casualties

Budget cuts to the National Weather Service earlier this year forced some offices to cease 24-hour operations, including the Jackson, Kentucky office, which lost its full-time overnight forecaster. This directly contributed to delayed tornado warnings in a recent devastating storm, resulting in at least 27 deaths and numerous missing persons. The New York Times had previously reported on how these cuts would undermine weather forecasting improvements. Now, a NOAA PR team, under Trump loyalists, is scrambling to deny and downplay the situation. This tragedy highlights the severe consequences of underfunding weather services and raises serious concerns about public safety during future extreme weather events.

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(www.mesoscalenews.com)
Tech weather warning

A Physicist's Guide to Ice Cream: The Unexpected Science of a Beloved Dessert

2025-01-20
A Physicist's Guide to Ice Cream: The Unexpected Science of a Beloved Dessert

Ice cream, a seemingly simple dessert, is a marvel of physics and chemistry. Professor Douglas Goff, a food scientist at the University of Guelph, Canada, unravels the science behind its creation, from emulsification and foaming to ice crystal formation. He explains how principles of materials science contribute to the perfect scoop, highlighting differences in structure between homemade and commercially produced ice cream, the impact of additives, and the challenges of vegan ice cream production. The article also details Goff's team's innovative use of electron microscopy to study ice cream's microstructure without melting the samples, showcasing the fascinating intersection of science and culinary arts.

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(physicsworld.com)
Tech ice cream materials science

AI Coding: A Double-Edged Sword?

2025-05-16

The author attempted to rebuild their SaaS backend using AI (Claude, Cursor), initially progressing smoothly. However, they soon encountered problems. The AI-generated code lacked consistency and maintainability, forcing a manual rewrite. The author reflects on the pitfalls of over-reliance on AI, including diminished coding and problem-solving skills. They advocate caution, suggesting AI should be a supplementary tool, not a complete replacement.

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(albertofortin.com)
Development

Solving Labyrinth's Goblin Riddle with Boolean Algebra

2025-03-06

This article demonstrates solving the classic Knights and Knaves logic puzzle from the movie *Labyrinth* using Boolean algebra. The author models the problem, using A for the answer, Q for the correct answer to the question, and G for whether the goblin is lying, deriving A = G⊕Q. By cleverly crafting the question to incorporate the other goblin's lying status, the equation simplifies, revealing the solution. The author argues that the formalized approach clarifies the steps and highlights the usefulness of formal systems as reasoning tools.

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(the-nerve-blog.ghost.io)
Misc Boolean algebra logic puzzle

NYC Subway Bill Threatens to Lock Transit in the Past

2025-07-20
NYC Subway Bill Threatens to Lock Transit in the Past

A new bill passed by the New York State Legislature mandates two-person train operation (TPTO) for NYC subways, a move critics say would reverse decades of progress. The bill, requiring conductors on all trains regardless of automation capabilities, is seen as an outdated practice, hindering modernization and increasing costs. While proponents claim it improves safety, the article argues that this is a thinly veiled attempt to protect jobs, ignoring advancements in technology and safety features on modern trains. The author urges Governor Hochul to veto the bill, preventing a costly and inefficient setback for the city's transit system.

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(www.etany.org)
Tech NYC Subway TPTO

NASA's GUARDIAN System Uses GNSS Data to Enhance Tsunami Early Warning

2024-12-20
NASA's GUARDIAN System Uses GNSS Data to Enhance Tsunami Early Warning

NASA has developed GUARDIAN, a near real-time ionospheric monitoring software system that leverages Global Navigation Satellite System (GNSS) data from NASA's Jet Propulsion Laboratory's (JPL) Global Differential GPS (GDGPS) network to detect natural hazards. By analyzing ionospheric perturbations, GUARDIAN supplements existing early warning systems, particularly for tsunamis. Currently, it's the only system publicly providing multi-GNSS near real-time total electron content (TEC) time series data over the Pacific, significantly contributing to improved tsunami warning accuracy and timeliness.

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(www.earthdata.nasa.gov)
Tech Tsunami Early Warning Ionospheric Monitoring

The Power of Abstraction: How Linux and FFmpeg Build Extensible Media Frameworks

2025-03-09
The Power of Abstraction: How Linux and FFmpeg Build Extensible Media Frameworks

This article explores how Linux and FFmpeg achieve code extensibility through abstraction and interfaces. Linux's "everything is a file" philosophy, using the `file_operations` structure to define a common interface for file operations, allows various resources (network sockets, special files, USB devices) to be accessed uniformly. FFmpeg employs a similar strategy, using abstract concepts like `AVCodec` to easily add new codecs and formats; the integration of DAV1d exemplifies this design's advantages. The article uses Ruby, Go, and C code examples to illustrate different ways to implement abstract interfaces in various programming languages, ultimately highlighting the crucial role of good software design in improving code maintainability and extensibility.

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(leandromoreira.com)
Development

Ted Chiang: Beyond Hard Sci-Fi, a Philosophical Deep Dive

2025-08-19
Ted Chiang: Beyond Hard Sci-Fi, a Philosophical Deep Dive

This review delves into the unique writing style of acclaimed science fiction author Ted Chiang. He transcends the typical 'hard' vs. 'soft' sci-fi dichotomy, crafting universes with internally consistent scientific laws that serve as vehicles for exploring profound philosophical questions and human relationships. Chiang uses science not as mere backdrop, but as a central driver of the narrative. For instance, in 'Story of Your Life,' the Sapir-Whorf hypothesis (language shaping thought) becomes key to understanding alien intelligence. The review praises Chiang's masterful portrayal of compatibilism (reconciling free will and determinism) while pointing out his relative weakness in depicting society's interaction with technology and a lack of diversity in his philosophical explorations.

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(linch.substack.com)
Tech Ted Chiang

RPCEmu 0.9.5 Released: Major Update for Acorn Computer Emulator

2025-03-31

RPCEmu, an emulator for classic Acorn computer systems like the Risc PC and A7000, has released version 0.9.5. This release boasts numerous improvements, including mouse wheel support, enhanced floppy disk and IDE hard drive drivers, more accurate timers, and high-resolution timestamp support for HostFS on 64-bit Linux. The project is open-source and welcomes community contributions.

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(www.marutan.net)
Development

Matrix Logarithms and Transform Interpolation: Understanding Transforms as Velocity Fields

2025-03-22

This article explores how to smoothly interpolate a transform matrix T to move a point x from its initial position to its position transformed by T. The key is using matrix exponentials and logarithms. By raising T to the power of t (T^t = e^(log(T)*t)), we can obtain the transform T(t) at time t. Interestingly, log(T) represents the velocity field of the transformation; its product with point x gives the velocity vector at that point. The article explains this mathematical principle in detail, providing an interactive example and code links demonstrating transform interpolation and visualizing a matrix as a velocity field.

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(nosferalatu.com)
Development transform interpolation velocity field

Massive Lexipol Data Leak Exposes Police Policy Controversies

2025-02-12
Massive Lexipol Data Leak Exposes Police Policy Controversies

Thousands of files from Lexipol, a company providing policy manuals and training materials to law enforcement agencies, have been leaked by hackers. These manuals, while customized, have drawn criticism for potentially hindering police reform and failing to address local community needs. The leaked data includes sensitive user information, raising privacy concerns. Lexipol has faced previous accusations from the ACLU of contributing to racial profiling and unlawful detentions through its policies. This breach highlights the lack of transparency in police policymaking and the influence of private companies on public safety.

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(www.dailydot.com)
Tech police reform

Evolving a Structural Code Editor: From AST Manipulation to Intuitive UI

2025-01-06
Evolving a Structural Code Editor: From AST Manipulation to Intuitive UI

This post details the multi-year evolution of a structural code editor. The initial version directly manipulated the Abstract Syntax Tree (AST), proving cumbersome. Subsequent iterations simplified the AST and explored a text-cursor-based approach, but both fell short. The final version balances AST and text editing, employing techniques like Editable types, Projections, and Frames. A visual, icon-based UI was added, supporting keyboard, mouse, touch, and remote control, significantly enhancing user experience. Built with Gleam and Lustre, this project showcases the ongoing exploration and refinement of structural code editor design.

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(crowdhailer.me)
Development code editor UI design

EPA Seeks to Roll Back PFAS Drinking Water Standards

2025-09-14
EPA Seeks to Roll Back PFAS Drinking Water Standards

The EPA is attempting to overturn its own regulations protecting Americans from unsafe levels of PFAS “forever chemicals” in drinking water. This move, met with fierce opposition from environmental groups, contravenes the Safe Drinking Water Act's anti-backsliding provision and jeopardizes public health. With PFAS contaminating the drinking water of approximately 200 million people nationwide, the EPA's decision has sparked widespread concern.

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(earthjustice.org)
Tech Drinking Water Safety Environmental Protection

Oral Microbiota Transfer May Mediate Depression and Anxiety in Couples

2025-05-25
Oral Microbiota Transfer May Mediate Depression and Anxiety in Couples

A study of 268 newlywed couples reveals a potential link between oral microbiota transfer and the transmission of depression and anxiety symptoms. Healthy spouses of partners experiencing insomnia, depression, and anxiety showed a significant worsening of these conditions, along with changes in their oral microbiota composition mirroring that of their affected partners after six months. This suggests close contact facilitates the transfer of oral bacteria, potentially influencing mental health in couples.

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(www.xiahepublishing.com)
Tech oral microbiota

BreezeWiki: Say Goodbye to Fandom Ads

2025-03-31

Tired of annoying ads and videos on Fandom wikis? BreezeWiki offers a clean and refreshing reading experience. Simply replace "fandom.com" with "breezewiki.com" in the URL to say goodbye to slow loading and data consumption. BreezeWiki is supported by multiple independently run mirror websites, ensuring availability even if one mirror is down. While BreezeWiki doesn't allow editing or creating new pages, it provides readers with a content-focused reading environment and has been well-received by many users.

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(breezewiki.com)
Misc

Tracing Myanmar's Military Command Chains: A Data-Driven Case Study

2025-01-19

DOT • STUDIO partnered with the Security Force Monitor (SFM) to build "Under Whose Command," a platform leveraging cutting-edge technology to precisely trace Myanmar's complex military command chains. Employing sophisticated data modeling (EAV and Datalog databases) and precise handling of time and location, the platform overcomes the challenges of dynamic and overlapping command structures, providing journalists, courts, and researchers with a powerful tool for accountability. The project successfully integrated existing research workflows with new technologies, resulting in a user-friendly and sustainably maintained public platform.

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(www.dot.studio)
Tech command chain

Hello World: Minimized to 167 Bytes

2025-01-02
Hello World: Minimized to 167 Bytes

This article documents the author's journey to create the smallest possible 'Hello World' program. Initially using Rust, the author discovered that minimizing the binary size required a deep dive into low-level programming. Ultimately, assembly language was chosen, and through clever techniques such as removing debugging symbols and manually crafting the ELF header, a 64-bit Linux 'Hello World' program was reduced to an impressive 167 bytes! The article delves into the file size expansion during the linking process and the details of the ELF file format, making it highly valuable for low-level system developers.

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(blog.lohr.dev)
Development minimal program

Around the World in 380+ Objects: A Massive Wiki Project by UGA History Students

2025-02-16
Around the World in 380+ Objects: A Massive Wiki Project by UGA History Students

Students in Professor Ari Daniel Levine's World Civilizations I course at the University of Georgia have embarked on an ambitious Wiki project: "Around the World in 380+ Objects." This collaborative effort explores world history (pre-1500 CE) through detailed entries on over 380 museum artifacts from renowned institutions like the Louvre, the British Museum, and the Metropolitan Museum of Art. Each object receives a dedicated page, creating a vast online resource for anyone interested in learning about world history through the lens of material culture.

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(history2701.fandom.com)
Misc museum artifacts collaborative project

Registry Explorer: Interactively Explore Docker Images

2025-09-13

Registry Explorer is a powerful tool that lets you interactively explore the contents of Docker images, even drilling down into the filesystem. Running on Google Cloud Run and using google/go-containerregistry, it cleverly minimizes costs and registry traffic. Layers are downloaded and indexed only once, with subsequent access using efficient indexing and range requests. This saves bandwidth and reduces load on the registry. The project is open-source and sponsored by Docker.

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(oci.dag.dev)
Development Image Exploration

ALTCHA: Lightweight, Privacy-Preserving Anti-Spam Solution

2025-05-15
ALTCHA: Lightweight, Privacy-Preserving Anti-Spam Solution

ALTCHA is a self-hosted anti-spam service for websites and APIs. It uses a proof-of-work mechanism instead of CAPTCHAs, protecting user privacy and complying with GDPR and WCAG 2.2 AA standards. ALTCHA is lightweight, cookie-free, and fully accessible, offering a SaaS API and extensive configuration options including custom requests, spam filtering, and data obfuscation. Its size is a mere 6% of reCAPTCHA.

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(github.com)
Development proof-of-work

British Entrepreneur Challenges US-Europe Work Ethic Narrative: It's Not Effort, It's Optimism and Ambition

2025-02-06
British Entrepreneur Challenges US-Europe Work Ethic Narrative: It's Not Effort, It's Optimism and Ambition

Monzo founder and former CEO Tom Blomfield challenges the narrative that Americans work harder than Europeans. He argues the difference lies in "positivity, optimism, and ambition." The deeply American belief that anyone can achieve anything through hard work contrasts sharply with British culture. He notes that top UK students gravitate towards finance or consulting, while US students are more entrepreneurial. This cultural divergence contributes to Europe's productivity gap with the US. Blomfield's own experience reflects this; he faced hurdles securing a banking license in the UK but found more support in the US.

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(finance.yahoo.com)
Startup entrepreneurial culture
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