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Is Your Authorization System About to Explode? Five Warning Signs

2025-05-22
Is Your Authorization System About to Explode? Five Warning Signs

This article outlines five signs indicating potential problems with your application authorization system: permissions are a simple dictionary; updating role permissions requires changes in many places; inability to clearly answer 'what can an admin do?'; future need for custom roles and permissions; plans to break up the monolith into microservices. The article suggests using a declarative authorization model, centralizing authorization logic into a single service, and choosing an authorization platform designed for scalability and distributed systems, such as Oso, to address these issues.

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(www.osohq.com)
Development

JWST Captures a Stunning Einstein Ring

2025-04-02
JWST Captures a Stunning Einstein Ring

The James Webb Space Telescope (JWST) has captured a breathtaking image: a nearly perfect 'Einstein Ring'. This ring-like structure is caused by the gravitational lensing effect of a closer elliptical galaxy on a more distant spiral galaxy. Light from the farther galaxy is bent by the gravity of the nearer galaxy, creating an almost perfect circle. This phenomenon verifies Einstein's prediction of general relativity and showcases the power of modern telescopes, allowing us to peer into the depths of the universe and appreciate this cosmic artwork.

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(phys.org)
Tech

AI Revolutionizes Protein Design: New Tool Unveiled

2024-12-15

Scientists have developed a groundbreaking AI-powered tool, RoseTTAFold, for designing novel proteins. This tool predicts the amino acid sequence of a protein based on a user-specified target structure, generating stable and functional proteins. This breakthrough promises to accelerate advancements in drug discovery, materials science, and bioengineering, offering new possibilities for addressing various challenges facing humanity. The technology holds the potential to revolutionize biomedicine by creating proteins with specific functions for treating diseases or developing new materials.

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(artexplorer.ai)
AI Protein Design Biomedicine

Haskell Functors: Elegantly Handling Values in Context

2025-04-05

In Haskell, Functors provide a powerful abstraction for working with values wrapped in contexts like Maybe or lists. The `fmap` function elegantly applies functions to these values, avoiding type errors that would arise from direct function application. The article details the Functor definition, the role of `fmap`, and the identity and composition laws Functors must obey, illustrating with examples using Maybe and lists. It concludes by highlighting the benefits of Functors in creating cleaner, more readable code.

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(codehakase.com)
Development

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

Windows Hello Broken in the Dark: A Security Upgrade's Cost?

2025-06-16
Windows Hello Broken in the Dark: A Security Upgrade's Cost?

Users are reporting that Windows Hello has stopped working in dark environments. Microsoft's update, aimed at patching a spoofing vulnerability, now requires both IR sensors and a webcam for facial recognition. While enhancing security, this means users can't use Windows Hello in low-light conditions unless they disable their webcam. A workaround involves disabling the webcam, restoring dark-room functionality but sacrificing video call capabilities. This upgrade prioritizes security, but at the cost of convenience for users.

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(www.windowscentral.com)
Tech

Bacteria: Tiny Organisms, Huge Impact on Earth and the Future

2024-12-13
Bacteria: Tiny Organisms, Huge Impact on Earth and the Future

This article unveils the hidden world of bacteria, revealing how these minuscule organisms have shaped the Earth and profoundly influence our future. From being among the first life forms on Earth 3.5 billion years ago, to the great oxygenation event and the formation of complex cells, bacteria's role is undeniable. Their astonishing diversity allows them to thrive in nearly every environment, forming intricate relationships with other life, including humans. Research into bacteria is revolutionizing our understanding of disease, the environment, and the future; harnessing their power offers potential solutions to major challenges like climate change, pollution, and infectious diseases.

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(www.oum.ox.ac.uk)
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AI bacteria life origins biotechnology

NCURSES: The Unsung Hero of UNIX Terminal Programming

2025-03-26

This document introduces the NCURSES library, a powerful and terminal-independent library for screen painting and input event handling. Originating from the screen-handling routines of the vi editor, it evolved through termcap and terminfo databases. NCURSES supports multiple highlights, color, mouse interaction, and extensions for panels, menus, and forms, simplifying terminal application development significantly.

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(invisible-island.net)
Development terminal programming

Tropical Trees Thrive After Lightning Strikes: A New Discovery

2025-03-28
Tropical Trees Thrive After Lightning Strikes: A New Discovery

A new study reveals that the Dipteryx oleifera tree, native to Central America, not only survives lightning strikes but actually benefits from them. Lightning strikes eliminate competing vegetation and parasitic vines, giving the D. oleifera trees more sunlight and nutrients. This leads to a 14-fold increase in reproductive success. Researchers hypothesize that these trees may have evolved to attract lightning. This discovery sheds light on the underappreciated role of lightning in shaping forest ecosystems and has implications for tropical reforestation efforts.

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(www.caryinstitute.org)
Tech lightning tropical trees

Agricultural Waste Enables 21.39% Efficient Perovskite Solar Cell

2025-02-22
Agricultural Waste Enables 21.39% Efficient Perovskite Solar Cell

Researchers from Nanyang Technological University in Singapore and Polytechnique Hauts-de-France have developed a perovskite solar cell using a biomass-based polymer derived from agricultural waste (furan). This innovative cell achieved a remarkable 21.39% energy conversion efficiency, demonstrating a promising path towards sustainable and cost-effective solar energy. While still below silicon-based cells, this breakthrough offers a significant step towards environmentally friendly, large-scale solar energy production.

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(techxplore.com)
Tech Perovskite Solar Cell Biomass Polymer Sustainable Energy

OmniHuman-1: Rethinking the Scaling-Up of One-Stage Conditioned Human Animation Models

2025-02-04

OmniHuman-1 is an AI model capable of generating realistic human videos. It supports various visual and audio styles, generating videos at any aspect ratio and body proportion (portrait, half-body, full-body). Realism stems from comprehensive motion, lighting, and texture detail. The model handles diverse inputs, including singing, talking, and various poses, even from cartoons or challenging viewpoints. It leverages audio and video driving signals for precise control. Ethical considerations are addressed, with images and audio sourced from public domains or generated models.

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(omnihuman-lab.github.io)
AI video generation human animation

Hardware-Efficient UNORM and SNORM to Float Conversion

2024-12-26
Hardware-Efficient UNORM and SNORM to Float Conversion

This blog post delves into the efficient hardware implementation of converting UNORM and SNORM integer formats to IEEE 754 binary32 floating-point numbers. The author details handling special values for 8-bit and 16-bit UNORM and SNORM, demonstrating how bit shifts and additions achieve precise conversion without complex division. Normalization and rounding are explained to ensure accuracy. The post concludes by summarizing the hardware cost, highlighting its efficiency.

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(fgiesen.wordpress.com)
Hardware float conversion

SpaceX's Ambitious Sea-Based Launches: A Risky Proposition?

2025-02-16
SpaceX's Ambitious Sea-Based Launches: A Risky Proposition?

SpaceX's plans for frequent Starship launches necessitate innovative solutions, including sea-based launch platforms. However, the history of Sea Launch, plagued by legal, environmental, and safety concerns, serves as a cautionary tale. While SpaceX currently shelved its sea launch project, executives hint at its potential return. This raises critical questions about international regulations, environmental protection, and the long-term effects of high-frequency rocket launches. The future of sea-based launches remains uncertain.

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(www.technologyreview.com)
Tech Sea Launch

NOMARS: The Unmanned Surface Vessel Revolution

2025-03-10

The No Manning Required Ship (NOMARS) program has successfully completed construction of the USX-1 Defiant, a 180-foot, 240-metric-ton unmanned surface vessel (USV). Designed from the keel up without any human crew considerations, Defiant aims to revolutionize naval architecture. By eliminating the human element, NOMARS anticipates significant advantages in size, cost, reliability, hydrodynamic efficiency, sea-state survivability, and adversary resistance through stealth and tamper-proofing. Scheduled for sea trials in Spring 2025, Defiant promises a cost-effective path to a distributed USV fleet.

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(www.darpa.mil)
Tech USV autonomous navigation naval technology

Programming Lewis Carroll's *Memoria Technica*

2024-12-27

This article explores Lewis Carroll's *Memoria Technica*, a cipher he devised to aid in remembering numbers. The cipher maps consonants to digits, ignoring vowels and punctuation. The article describes the cipher's mechanics, presents online tools for encoding and decoding, and discusses its potential use in steganography. The authors detail their TypeScript implementation, highlighting optimizations for efficiency. Examples illustrate encoding and decoding, and the article analyzes the cipher's strengths and weaknesses as a steganographic technique, including a potential vulnerability related to letter and digit frequency discrepancies.

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(ztoz.blog)
Development Steganography

Rare Kimsuky Leak Reveals Tactics and Infrastructure of North Korean-Linked APT

2025-09-07
Rare Kimsuky Leak Reveals Tactics and Infrastructure of North Korean-Linked APT

A rare security incident involving a data breach attributed to a North Korean-affiliated actor, dubbed “Kim,” offers unprecedented insights into Kimsuky (APT43) tactics, techniques, and infrastructure. The group focuses on credential-centric intrusions targeting South Korean and Taiwanese networks, blending Chinese-language tooling, infrastructure, and potential logistical support. The “Kim” dump, containing bash histories, phishing domains, OCR workflows, compiled stagers, and rootkit evidence, reveals a hybrid operation between DPRK attribution and Chinese resource utilization. The leaked data includes malware development, OCR parsing of Korean PKI and VPN documents, and reconnaissance targeting Taiwanese government and academic institutions. Analysts uncovered an advanced Linux rootkit employing syscall hooking and stealth persistence. The incident highlights the evolving capabilities of North Korean threat actors and their potential connections to Chinese resources.

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(dti.domaintools.com)
Tech

Polypane: Build, Debug, and Test Websites All in One Place

2025-03-25
Polypane: Build, Debug, and Test Websites All in One Place

Polypane is a powerful web development tool that lets you build, debug, and test every aspect of your website without context switching. It supports responsive design, accessibility checks, meta tag verification, and performance testing. View all viewports at once, from mobile screens to 5K monitors; get instant feedback on structure, metadata, and accessibility; and easily test different views like dark and light mode. All actions are mirrored across all devices for streamlined workflow.

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(polypane.app)
Development Debugging Tool

Rust Prototyping: Debunking the Myths

2025-01-17
Rust Prototyping: Debunking the Myths

This article challenges the common belief that Rust is unsuitable for rapid prototyping. The author argues that Rust's strong type system and tooling actually help developers catch design flaws early, reducing rework later. The article details several Rust prototyping techniques, such as using simple types, leveraging type inference, judiciously using `unwrap`, and utilizing IDE features effectively. Real-world examples illustrate how Rust's type system aids design, leading to robust production-ready code. The author also emphasizes avoiding premature optimization and recommends the `dbg!` macro for debugging. In short, this article provides a practical guide to Rust prototyping, enabling developers to efficiently translate ideas into working code.

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(corrode.dev)
Development Prototyping Programming Techniques

Urgent: CISA Warns of Actively Exploited Cisco and Windows Vulnerabilities

2025-03-04
Urgent: CISA Warns of Actively Exploited Cisco and Windows Vulnerabilities

The Cybersecurity and Infrastructure Security Agency (CISA) issued an emergency directive warning federal agencies about actively exploited vulnerabilities in Cisco and Windows systems. CVE-2023-20118 affects Cisco RV series VPN routers, allowing remote code execution. CVE-2018-8639, a Windows elevation of privilege flaw, also enables arbitrary code execution. CISA added these to its Known Exploited Vulnerabilities catalog, mandating remediation by March 23rd for federal agencies. This highlights the critical need for prompt patching to mitigate sophisticated cyberattacks.

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(www.bleepingcomputer.com)
Tech system security

Clear as Crystal: Tips for Mathematically Sound Handwriting

2025-02-08

This blog post offers essential tips for improving the clarity of your mathematical handwriting. The author stresses the importance of distinguishing between similar-looking letters and symbols, providing specific examples and illustrations on how to write lowercase and uppercase Roman letters, digits, and Greek letters to avoid ambiguity. Techniques include differentiating lowercase 'l' from '1', 'p' from rho, 'q' from 9, and 'u' from 'v', among others. The guide also includes detailed advice on writing Greek letters to prevent confusion with Roman letters or other Greek symbols. This post is invaluable for students and professionals alike who want to ensure their mathematical writing is easily understood.

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(johnkerl.org)
Development mathematical handwriting clarity disambiguation

Converting LaTeX to Accessible HTML: A Case Study

2025-03-29
Converting LaTeX to Accessible HTML: A Case Study

LaTeX, while excellent for producing high-quality typeset documents, suffers from accessibility issues due to its PDF output. This article explores converting LaTeX to HTML for improved accessibility. It compares alternatives to LaTeX (Pressbooks, PreTeXt, Markdown) and focuses on LaTeXML and BookML as conversion tools. A case study detailing the conversion of an open logic textbook highlights challenges and tricks, such as handling mathematical formulas, alt text for images, and screen reader compatibility. The author's experience demonstrates the process of creating a more accessible online textbook, balancing the needs of various assistive technologies.

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(richardzach.org)
Development

Nostalgic Tales of VAX/VMS: Lessons Learned and Hilarious Mishaps

2025-05-22

This blog post recounts the author's humorous experiences working with VAX/VMS systems and the life lessons learned along the way. With a lighthearted tone, the author shares anecdotes from their college years as a computer lab technician and operator, including creatively solving student email issues and a near-firing incident due to a mail system crash. A particularly amusing story involves using a VAX/VMS system as a pillow for two years. The post is a blend of nostalgia for past technologies and unique insights into a programmer's career, falling under the Tech category.

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(davewentzel.com)
Tech Programmer

Buzee: Open-Source Full-Text Search App Released

2024-12-14
Buzee: Open-Source Full-Text Search App Released

Buzee is a cross-platform, full-text search application built with Rust and Svelte. It allows for fast searching of local files, folders, browser history, and more, even extracting text from PDFs and images using OCR. Developed over two years, this project showcases a robust architecture using Tauri for performance, SQLite and Tantivy for indexing, and a clean Svelte frontend. While feature-rich, it still has some areas for future development, and the author is releasing it open-source for others to contribute.

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(github.com)
Development full-text search

Melbourne Home Buyer Uncovers 60-Year-Old Model Train Network!

2025-07-01
Melbourne Home Buyer Uncovers 60-Year-Old Model Train Network!

A Melbourne man's recent home purchase in the northern suburbs yielded an unexpected surprise: a sprawling model train network hidden beneath the floorboards! The new homeowner, Daniel Xu, a keen train enthusiast and engineer, discovered the elaborate setup, complete with extensive tracks and miniature landscapes, built by the previous owner in the 1960s. Despite its dusty, spiderweb-covered state, Xu plans to restore and upgrade this unique find, sharing the joy of trains with friends and their children.

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(www.sbs.com.au)
Misc model train unexpected discovery home renovation

Jurassic Park's Enduring Magic: Why It Still Reigns Supreme

2025-07-08
Jurassic Park's Enduring Magic: Why It Still Reigns Supreme

This article delves into the reasons behind Jurassic Park's enduring success and compares it to its sequels. The author argues that Spielberg's reverence for dinosaurs and nuanced character development are key. Unlike later, creatively bankrupt installments, Jurassic Park masterfully blends factual science with fiction, creating memorable characters and relationships. Its lasting impact stems from its unique blend of awe, fear, and a thoughtful exploration of humanity's hubris.

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(briannazigler.substack.com)
Game Jurassic Park Steven Spielberg

Booting 5000 Erlang VMs on a 192-Core Ampere One Server

2025-08-10
Booting 5000 Erlang VMs on a 192-Core Ampere One Server

Underjord, a consultancy specializing in Elixir and Nerves, successfully ran 5000 Erlang virtual machines on a 192-core Ampere One server. Each VM runs a Linux IoT device using the Nerves framework. This was achieved using a new bootloader, little_loader, streamlining ARM64 QEMU VM booting and leveraging KVM acceleration. Challenges included compilation issues and memory optimization, but these were overcome by adjusting BEAM VM allocators, Erlang release modes, and Linux kernel parameters. Over 5000 VMs were successfully run, opening new possibilities for testing and development of the Nerves framework and potentially integrating into future Nerves tooling.

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(underjord.io)
Development

2024's Most Scathing Book Reviews: Literary Heavyweights Face the Critics

2024-12-22
2024's Most Scathing Book Reviews: Literary Heavyweights Face the Critics

The most brutal book reviews of 2024 are in, and even literary giants didn't escape unscathed. From Melania Trump's clichéd memoir to Haruki Murakami's disappointing magical realism, Lionel Shriver's clumsy satire, and Malcolm Gladwell's hollow brand extension, critics delivered scathing critiques. The reviews dissected the shortcomings of these works, pointing out bland writing, shallow character development, and tired plots, offering readers a thought-provoking glimpse into the literary landscape.

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(lithub.com)
Misc book reviews literature criticism

MRubyD: A C#-based mruby VM for Seamless Game Engine Integration

2025-03-24
MRubyD: A C#-based mruby VM for Seamless Game Engine Integration

MRubyD is a new mruby virtual machine implemented in pure C#, designed for seamless integration with C#-based game engines. Leveraging modern C# features, it boasts high performance and extensibility, prioritizing Ruby API compatibility. Currently in preview, some features like built-in types and methods, as well as private/protected visibility, are under development. Install via `dotnet add package MRubyD` and explore its capabilities through the provided examples. It requires the native mruby compiler for compiling .rb source code into .mrb bytecode.

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(github.com)
Development
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