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Nonlinear Optics Sandbox: AI-Powered Control of Complex Optical Systems

2025-01-17

Nonlinear Optics Sandbox: AI-Powered Control of Complex Optical Systems

WestonCB's Nonlinear Optics Sandbox is an interactive platform for studying controlled nonlinear dynamics through the simulation of coupled optical fields. The project uses a specific optical configuration—coupled fundamental/harmonic fields interacting with an adaptive medium—as an idealized model to explore how optimization processes can guide complex nonlinear systems towards desired states. It combines real-time visualization, GPU-accelerated physics simulation, and gradient-based optimization, offering a novel tool for researching nonlinear dynamics and the control of complex systems.

(github.com)

Tech Nonlinear Optics AI Optimization Complex Systems

Paged Out!: Resurrection and Evolution of a Tech Zine

2025-03-29

Paged Out!: Resurrection and Evolution of a Tech Zine

After a four-year hiatus caused by pandemics and various challenges, the tech zine *Paged Out!* has been successfully revived and is back on track. This blog post chronicles the magazine's journey from stagnation to resurgence, introducing the new management team and operational model. It also outlines future plans, including improvements to PDF processing, achieving financial self-sufficiency, and expanding the scope of topics covered.

(pagedout.institute)

Misc zine publishing

Augment: AI-Powered Code Completion and Chat for Vim/Neovim

2025-02-19

Augment: AI-Powered Code Completion and Chat for Vim/Neovim

Augment released its Vim/Neovim plugin offering inline code completions and multi-turn chat conversations tailored to your codebase. After installation (requiring Node.js 22.0.0+ and compatible Vim/Neovim versions), add workspace folders and sign in to the Augment service. Context-aware code completions appear as you type; use the `:Augment chat` command for AI-powered code discussions. The plugin provides commands for managing status, login/logout, enabling/disabling suggestions, viewing logs, and starting new chat conversations. `.augmentignore` helps manage large projects. Easily customize keybindings for accepting suggestions.

(github.com)

Development AI code completion

ESA's Fair Contribution Model: A New Approach to European Launchers

2025-03-26

ESA's Fair Contribution Model: A New Approach to European Launchers

ESA's governance, hampered by a 'geo-return' policy linking member state investment to national benefits, has resulted in slow project approvals and cost overruns. The Ariane rocket program, heavily funded by France, exemplifies this. However, the rise of commercial spaceflight and smaller launchers challenges this model. ESA proposes a 'fair contribution' funding model, to be presented at the November ministerial conference. This model shifts funding responsibility to member states most benefiting from the successful launcher programs, aiming for greater efficiency and cost control in European space exploration.

(arstechnica.com)

Tech ESA Space Launchers Funding Model

Mars Dichotomy Boundary Eroded Hundreds of Kilometers

2025-01-21

Mars Dichotomy Boundary Eroded Hundreds of Kilometers

New research suggests Mars' iconic dichotomy boundary, separating the higher southern hemisphere from the lower northern one, may have receded hundreds of kilometers due to water erosion. Researchers analyzed data from the Mars Express and Mars Reconnaissance Orbiter, finding that thousands of buttes and mesas near Mawrth Vallis, situated at the dichotomy boundary, share a similar height with a nearby higher-elevation plateau, indicating they are remnants of a larger plateau eroded away. This massive erosion suggests an active water cycle early in Mars' history, consistent with the theory of a northern ocean but also potentially caused by other hydrological processes like ice cap melting. The finding offers new clues about early Martian climate and geological evolution, adding to evidence for a past ocean but also raising new questions.

(arstechnica.com)

Tech Mars hydrological cycle

Transfinite Nim: Extending the Winning Strategy Beyond the Finite

2025-02-06

Transfinite Nim: Extending the Winning Strategy Beyond the Finite

This article explores transfinite Nim, an extension of the classic game of Nim to transfinite ordinal numbers. The author first reviews the winning strategy for finite Nim – the balancing strategy – then introduces the binary representation of transfinite ordinal numbers, proving that every ordinal has a unique binary representation. The author further proves that the balancing strategy applies to transfinite Nim as well, demonstrating with a concrete example how to use this strategy to find the winning move.

(jdh.hamkins.org)

Game transfinite ordinal numbers

Converge Careers: Redefining Career Development

2025-01-24

Converge Careers isn't your average job board. It's a personalized career development platform leveraging AI to help users understand their skills, identify career paths, and access relevant learning resources and opportunities. Think of it less as a job search engine and more as a career navigation system guiding users through the ever-evolving professional landscape.

(jobs.gem.com)

Startup talent matching

Protected Query Pattern: A Solution for Data Authorization in Full-Stack Apps

2025-04-02

Protected Query Pattern: A Solution for Data Authorization in Full-Stack Apps

Securing data access in modern full-stack applications is challenging. This article introduces the 'protected query pattern,' an elegant solution. It wraps pure query functions with an authorization layer, offering `query.protect` and `query.unsafe` methods for authorized and direct queries respectively. This approach avoids duplicated authorization logic, improves maintainability and readability, and supports data redaction. Kilpi simplifies implementation, offering centralized authorization and data filtering for enhanced efficiency.

(kilpi.vercel.app)

Development data authorization

Amazon Deal: Uncertainties Remain

2025-02-20

Amazon Deal: Uncertainties Remain

Amazon issued a statement highlighting uncertainties surrounding an ongoing transaction. Potential risks mentioned include failure to meet transaction conditions, regulatory approvals not being obtained, delays or failure to close the deal, and an inability to achieve anticipated benefits. Amazon emphasized that actual results may differ materially from expectations and disclaimed any obligation to update the information unless legally required. Investors are cautioned against undue reliance on forward-looking statements.

(www.aboutamazon.com)

Startup transaction risk

Forgejo: A Self-Hosted GitHub Alternative

2025-01-19

Forgejo: A Self-Hosted GitHub Alternative

Forgejo is a lightweight, self-hosted software forge, easy to install and maintain, powered by the Codeberg e.V. community. It prioritizes security, scalability, federation, and privacy, offering a familiar GitHub-like experience for a smooth transition. 100% free and open-source, Forgejo boasts low resource consumption, high performance, and a commitment to fostering collaborative software development through decentralized platforms.

(forgejo.org)

Development GitHub alternative

Trump Admin Cuts Off Crucial F-16 Jamming Support: Ukraine's Response

2025-03-09

Trump Admin Cuts Off Crucial F-16 Jamming Support: Ukraine's Response

The Trump administration cut off vital support for the jamming capabilities of Ukraine's F-16 fighter jets, jeopardizing a critical air countermeasure. However, Ukraine isn't defenseless. They can leverage the jamming capabilities of French Dassault Mirage 2000 fighters, along with promised upgrades to their electronic warfare systems, to compensate for the American shortfall. While not a long-term solution, it buys Ukraine valuable time until more sustainable alternatives can be found.

(ukrainetoday.org)

Tech military technology Ukraine conflict electronic warfare

Supreme Court Upholds TikTok Ban: National Security Trumps Free Speech

2025-01-17

Supreme Court Upholds TikTok Ban: National Security Trumps Free Speech

The Supreme Court unanimously upheld a federal law banning TikTok unless its Chinese parent company sells it. The ruling prioritizes national security concerns over free speech arguments, citing risks posed by TikTok's ties to China. While President-elect Trump suggested a negotiated solution and the Biden administration indicated it wouldn't enforce the ban immediately, the decision leaves TikTok's future in the US uncertain. The court found the law did not violate petitioners' First Amendment rights.

(apnews.com)

Tech US-China Tech Rivalry

CMU's ML in Production Course: From Model to Product

2025-01-28

Carnegie Mellon University (CMU) offers a course, "Machine Learning in Production/AI Engineering," covering the entire lifecycle of building machine-learned models into real-world products. It encompasses model building, deployment, assurance, maintenance, responsible AI (safety, security, fairness, explainability), and MLOps. Targeted at students with some data science and programming experience, it doesn't require a software engineering background. Through case studies and a large-scale project, students learn to translate models into deployable and maintainable products, fostering collaboration in interdisciplinary teams.

(mlip-cmu.github.io)

Development AI Engineering

The Undocumented 68030 Instruction That Saved the Mac Classic II

2025-01-25

While debugging a Macintosh Classic II in MAME, the author discovered a bus error causing a 'Sad Mac' in 32-bit addressing mode. Reverse engineering revealed an out-of-bounds jump in the ROM, leading the CPU to execute an undocumented 68030 instruction. Surprisingly, this instruction corrected the value of register A1, preventing a crash and allowing the Classic II to boot successfully. The author validated this by repairing a vintage Classic II and modifying its ROM. This case highlights the power of emulators in uncovering hardware quirks and showcases how a software bug was inadvertently fixed by hardware.

(www.downtowndougbrown.com)

Hardware

Bilinear Up/Downsampling: Pixel Grid Alignment and That Infamous GPU Half-Pixel Offset

2025-01-27

Bilinear Up/Downsampling: Pixel Grid Alignment and That Infamous GPU Half-Pixel Offset

This article delves into the common misconceptions and pitfalls surrounding bilinear up/downsampling techniques. The author points out that bilinear up/downsampling isn't a single concept; its definition and implementation vary, leading to long-standing bugs and confusion, even affecting top libraries like TensorFlow. The article thoroughly explains pixel grid alignment, GPU half-pixel offsets, and the role of odd/even filters. Using a signal processing perspective, it analyzes operations like zero-insertion and post-filtering, ultimately concluding that choosing the right coordinate system and filter is crucial for obtaining correct results.

(bartwronski.com)

Development signal processing

Schrödinger: The Biotech Firm Trying to Crack the AI Drug Discovery Code

2025-01-25

Schrödinger: The Biotech Firm Trying to Crack the AI Drug Discovery Code

Schrödinger, a biotech company using quantum mechanics to design new medicines and materials, boasts all top 20 pharmaceutical companies as clients. Despite this, five years post-IPO, its stock price languishes near all-time lows. This article explores Schrödinger's unique business model—part biotech, part software—and its struggles with valuation. A pivotal dinner between Nvidia's Jensen Huang and Schrödinger's CEO highlighted a crucial turning point: embracing AI more fully. While initially hesitant, Schrödinger now leverages AI's power, particularly AlphaFold's protein structure predictions, and is preparing for crucial clinical data releases in 2025. The company's future hinges on successfully navigating the complex interplay of software sales, biotech pipeline development, and clear investor communication.

(hntrbrk.com)

Tech Drug Discovery

Bio-Inspired Adaptive Shading: Energy-Autonomous & Sustainable

2025-01-21

Researchers at the Universities of Stuttgart and Freiburg have developed a novel energy-autonomous building facade shading system, "Solar Gate," inspired by pine cones. Using bio-based cellulose materials and 4D printing, the system passively adjusts shading based on humidity and temperature changes, requiring no electricity. It closes in summer to minimize solar radiation and opens in winter to maximize sunlight for natural heating, offering a sustainable and efficient solution for climate control in buildings.

(www.uni-stuttgart.de)

Tech biomimicry 4D printing sustainable building

Mastra: A TypeScript Framework for Rapid AI App Development

2025-02-19

Mastra: A TypeScript Framework for Rapid AI App Development

Mastra is an opinionated TypeScript framework for quickly building AI applications and features. It provides essential primitives: workflows, agents, RAG, integrations, and evaluations. Run Mastra locally or deploy to a serverless cloud. Key features include LLM model integration (supporting OpenAI, Anthropic, Google Gemini via the Vercel AI SDK), agent systems enabling LLMs to use tools and access data, typed tool functions, durable graph-based workflows, RAG knowledge base construction, pre-built third-party API clients, and automated evaluations. Get started with `create-mastra` and open the playground with `mastra dev`. Contributions are welcome!

(github.com)

Development AI framework

Chrome Incognito Gets IP Protection: A Two-Hop Proxy for Enhanced Privacy

2025-02-13

Chrome Incognito Gets IP Protection: A Two-Hop Proxy for Enhanced Privacy

Chrome is introducing IP Protection for Incognito mode, enhancing privacy against cross-site tracking. Using a two-hop proxy system, users' original IP addresses are masked, protecting them from third-party tracking. Only domains on a Masked Domain List (MDL) are affected, and essential web functionality remains intact. Google and external CDNs operate separate proxies, preventing either from accessing complete user information. Launching after May 2025, users can disable the feature.

(github.com)

Tech IP Address

DiscMaster 2: A Massive Upgrade to the CD-ROM Archive

2025-03-04

DiscMaster 2 is live! This project reprocesses millions of files from the old DiscMaster 1, adding support for over 3000 file formats and a vastly improved search engine. The new search boasts fuzzy matching, regular expressions, file hash searching, and dramatically increased speed. DiscMaster 2 also features improvements to file browsing, downloading, and display, resulting in a much more user-friendly experience.

(discmaster.textfiles.com)

Misc data archive file format conversion

Budget Watch Survives Deep Sea Test, Reveals History of Underwater Espionage

2025-01-31

Budget Watch Survives Deep Sea Test, Reveals History of Underwater Espionage

A $15 Casio F91W watch, after a simple oil-filling modification, was successfully taken to nearly 5,000 meters underwater by a remotely operated vehicle (ROV) and returned intact. This incredible feat highlights the surprising pressure resistance of inexpensive equipment and underscores the long and secretive history of deep-sea espionage. From Cold War submarine recovery operations to modern-day sabotage of undersea cables, the deep ocean has served as a critical—and often unseen—battleground for intelligence gathering and covert actions. The article explores both historical incidents like Operation Ivy Bells and recent events, emphasizing the growing sophistication of underwater warfare and the challenges of attribution.

(www.watchesofespionage.com)

Tech Deep Sea Exploration Espionage

Herculaneum Papyrus 5: A Breakthrough in Ink Detection

2025-02-05

Herculaneum Papyrus 5: A Breakthrough in Ink Detection

Significant progress has been made in ink detection and segmentation of P.Herc. 172 from the Bodleian Libraries at Oxford (Scroll 5). The scroll exhibits unusually visible ink, greatly aiding ink detection model training. While segmentation requires further refinement, preliminary analysis suggests authorship by Philodemus, with words like 'disgust', 'fear', and 'life' identified, along with symbols indicating a finished work. Scroll 5's unique characteristics offer potential as a 'Rosetta Stone' for ink detection in other scrolls. The team has released extensive segmentation data to facilitate research.

(scrollprize.substack.com)

AI ink detection papyrus

Building a Mechanical Star Tracker for the ISS

2025-01-18

Building a Mechanical Star Tracker for the ISS

Engineer Ted Kinsman was tasked by NASA astronaut Don Pettit to design and build a mechanical star tracker for capturing high-quality astrophotography images from the International Space Station (ISS). Due to the lengthy testing period for electronic devices, the tracker was entirely mechanical, cleverly utilizing a clock drive from an industrial oven. Gear ratios were adjusted to match the ISS's orbital speed. The device successfully reached the ISS in 2024 and has captured stunning images of the cosmos.

(petapixel.com)

Tech space

Ledger Co-founder Kidnapped: Massive Investigation Underway in France

2025-01-23

Ledger Co-founder Kidnapped: Massive Investigation Underway in France

David Balland, a co-founder of the cryptocurrency wallet company Ledger, has been kidnapped, prompting a large-scale investigation by French authorities. The incident unfolded in the Cher department of France, involving a significant police deployment including helicopters and searches of multiple locations. The motive behind the kidnapping remains unclear, and whether a ransom is involved has not been publicly disclosed. This event highlights the security risks within the cryptocurrency industry.

(www.leberry.fr)

Tech kidnapping

Raising Analog Kids in a Digital World: A Family's Approach

2025-03-30

A couple shares their strategy for raising children with an analog childhood in a digital age. They created a curated playroom filled with books, board games, musical instruments, and other physical toys, minimizing screen time. Emphasis is placed on emotional security, autonomy, and attention span development, supported by clear house rules and consistent family involvement. This philosophy extends to their home design, with a retro color palette creating a warm and inviting atmosphere.

(www.joshuakennon.com)

Misc analog childhood

F-Droid Secures Major Funding to Ensure Long-Term Sustainability

2025-02-05

F-Droid Secures Major Funding to Ensure Long-Term Sustainability

F-Droid, a platform providing free and open-source Android apps, has received a $396,044 grant from the Open Technology Fund. This funding will address critical challenges to F-Droid's long-term sustainability, including code refactoring, improving legal strategies for handling government takedown requests, streamlining localization workflows, strengthening donation infrastructure, and enhancing hosting and infrastructure. This ensures F-Droid can continue delivering privacy-focused, open-source apps to users worldwide, even in areas with limited internet access.

(f-droid.org)

Development Funding

Toyota's Woven City: Phase 1 Complete, First Residents Moving In

2025-02-26

Toyota's Woven City: Phase 1 Complete, First Residents Moving In

Toyota Motor Corporation has announced the completion of phase one of its futuristic city, Woven City, located southwest of Tokyo. Spanning over 700,000 square meters, this innovative urban development will integrate autonomous vehicles, robotics, and advanced digital technologies to offer residents a unique and technologically advanced living experience. The city features dedicated roads for autonomous vehicles, pedestrian zones, and underground passageways for deliveries and waste management. Approximately 360 Toyota employees and their families will begin moving in during the second half of this year, with a projected population of 2,000 residents eventually.

(www3.nhk.or.jp)

Tech

Google Fiber Launches Construction in Las Vegas

2025-01-22

Google Fiber Launches Construction in Las Vegas

Google Fiber has officially begun network construction in Las Vegas, starting on the west side of the city with expansion to other parts of Clark County in the coming months. This follows agreements reached in 2024 with the City of Las Vegas and Clark County. Google Fiber is committed to minimizing disruption during construction and plans to offer service in parts of the metro area later this year. Nevada residents and businesses will have access to Google Fiber's plans, boasting speeds up to 8 gigabits and prices unchanged since 2012.

(fiber.googleblog.com)

Tech Google Fiber Las Vegas Network Construction

VitoDeploy: Streamlining PHP Deployment

2025-04-02

VitoDeploy: Streamlining PHP Deployment

VitoDeploy, a self-hosted web application, simplifies server management and production deployment for PHP applications, especially those built with Laravel. Developers praise its ease of use, performance, and versatility, with many highlighting its open-source nature. The application now supports SQLite, and a 1.x branch is available for beta testing.

(vitodeploy.com)

Development Deployment Tool

Toxic Legacy: Dried-Up Reservoir Reveals a Health Crisis

2025-03-20

Toxic Legacy: Dried-Up Reservoir Reveals a Health Crisis

Jesús displays infected spots on his hands caused by water pollution at the completely dry Endhó Dam reservoir. Independent scientific reports reveal the nearby soil contains numerous toxic substances dumped by chemical plants, causing skin allergies among residents. These include heavy metals like lead and mercury, arsenic, cyanide, nitrates, and other pollutants far exceeding environmental limits. Data suggests at least two generations of locals suffer from serious health issues, including cancer, kidney, and lung diseases.

(mexicocitywater.longlead.com)

Misc health crisis

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