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Mountain Biking Spinal Cord Injuries Surpass Hockey and Other High-Risk Sports

2025-01-08
Mountain Biking Spinal Cord Injuries Surpass Hockey and Other High-Risk Sports

New research from UBC's Faculty of Medicine reveals a shockingly high number of spinal cord injuries from mountain biking, exceeding those from hockey and other high-risk sports. Between 2008 and 2022, 58 people in British Columbia sustained spinal cord injuries while mountain biking, compared to only 3 from ice hockey. In recent years, mountain biking-related injuries have been seven times higher than those from skiing and snowboarding. The annual number in BC rivals or surpasses those from amateur football across the entire US. The study, published in *Neurotrauma Reports*, found most injured were healthy young men (93% male, average age 35.5). 77.5% were injured after going over their handlebars. While most wore helmets (86.3%), this didn't eliminate risk. The estimated lifetime cost of these injuries to BC is $195.4 million. The study calls for increased awareness and a discussion on safety improvements.

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(www.med.ubc.ca)
Tech mountain biking spinal cord injury

Cracking a 512-bit DKIM Key for Under $8

2025-01-08

Researchers cracked a 512-bit DKIM key from redfin.com in under 86 hours using a cloud server costing less than $8. They used the CADO-NFS tool to factor the modulus. Surprisingly, Yahoo Mail, Mailfence, and Tuta still accepted signatures generated with this insecure key. This highlights the risks of using short DKIM keys; email providers should reject signatures from keys shorter than 1024 bits, and domain owners should update their DKIM records accordingly.

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(dmarcchecker.app)
Tech key cracking

SteamOS Breaks Free from Steam Deck, Challenges Windows Gaming Hegemony?

2025-01-08
SteamOS Breaks Free from Steam Deck, Challenges Windows Gaming Hegemony?

Lenovo's Legion Go S is the first non-Valve hardware officially powered by SteamOS, marking SteamOS's expansion beyond the Steam Deck. This $500+ handheld will compete with a Windows 11 version, offering players more choice. Valve also announced a public beta of SteamOS to improve compatibility and plans to support more devices in the future. This move could challenge Windows' long-standing dominance in PC gaming, suggesting a flourishing Linux gaming ecosystem.

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(arstechnica.com)
Game Linux Gaming

Garmin Connect: Your Fitness Data Hub

2025-01-08
Garmin Connect: Your Fitness Data Hub

Garmin Connect is more than just a simple fitness tracking app; it's a comprehensive fitness data hub that records and analyzes your various fitness activities, such as running, cycling, and swimming. It not only tracks your distance, time, and calorie consumption but also provides personalized training plans and recommendations to help you better manage your health and fitness goals. Seamlessly connecting with other Garmin devices, you can easily view and manage your fitness data and share your achievements with friends. In short, Garmin Connect is your powerful assistant in achieving your fitness goals.

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(connect.garmin.com)
Misc fitness tracking health management

Auto-Generating Stunning OpenGraph Images with Astro and Satori

2025-01-08
Auto-Generating Stunning OpenGraph Images with Astro and Satori

Tired of manually creating OpenGraph images for your social media shares? This tutorial shows you how to effortlessly generate beautiful, custom OpenGraph images for your Astro blog posts using the Satori library. Learn how to set up automatic generation, create a reusable template, and boost your click-through rates. We cover dependency installation, component creation, API endpoint setup, image generation, and integration with your Astro site, providing detailed code examples. Make your link previews pop – without the tedious manual work!

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(skyfall.dev)
Development

Mecha Comet: A Modular, Open-Source Linux Handheld

2025-01-08

The Mecha Comet is a highly extensible handheld Linux computer, boasting modular hardware and software adaptable to diverse needs. Its open-source design empowers users to create custom extensions, leveraging interfaces like Raspberry Pi HATs and Mikrobus Click boards. Running Mechanix OS (based on Debian), the Comet packs a 1.8GHz quad-core ARM processor, 4GB RAM, and 32GB storage. Designed for ambitious projects ranging from DIY phones and AI assistants to even nanosatellite deployment, the Comet launches on Kickstarter in early Q1 2025.

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(mecha.so)
Hardware Handheld Computer Open Source Hardware

Engineering Manager - Payments Platform at Modern Treasury

2025-01-08
Engineering Manager - Payments Platform at Modern Treasury

Modern Treasury, a FinTech company building modern payment infrastructure, is hiring an experienced Engineering Manager for its payments platform. The role requires leadership experience managing engineering teams and a deep understanding of payment platform architecture and technologies. This is a fantastic opportunity for passionate FinTech professionals looking for leadership roles in a fast-growing company.

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(jobs.ashbyhq.com)
Development Engineering Manager Payments Platform

China's Xiangshan RISC-V Project Aims for 2025 Launch, Challenging Arm's Dominance

2025-01-08
China's Xiangshan RISC-V Project Aims for 2025 Launch, Challenging Arm's Dominance

The Xiangshan project, spearheaded by the Institute of Computing Technology at the Chinese Academy of Sciences, aims to develop high-performance chips using the open-source RISC-V instruction set architecture. Its third-generation chip, Kunminghu, is slated for a 2025 release, targeting performance comparable to Arm's Neoverse 2. Using the Mulan PSL-2.0 license, the designs will be fully open-source, posing a significant challenge to established players like Arm and reducing China's reliance on foreign technology. While the project has faced delays, its open-source nature and ambitious performance goals make it a compelling development to watch.

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(www.theregister.com)
Tech Xiangshan Project Chip

EVE: A C++ SIMD Vector Engine That Goes Brrrr

2025-01-08
EVE: A C++ SIMD Vector Engine That Goes Brrrr

EVE is a C++20 reimplementation of the old EVE SIMD library (formerly Boost.SIMD), showcasing how C++20 can create efficient, low-level, high-abstraction libraries. It supports various instruction sets including Intel SSE, AVX, ARM NEON, AArch64, and partially PowerPC. Currently operational, EVE may still have some performance quirks; contributions for testing and improvement are welcome.

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(github.com)
Development Vector Engine

Hot Reloading in Rust with Embedded Scheme

2025-01-08

This article demonstrates embedding the lightweight Scheme interpreter Stak Scheme within Rust, a compiled language, to dynamically alter program behavior without restarting the process. It showcases hot reloading functionality by embedding a Scheme script in a Rust HTTP server. Using Stak Scheme and the `stak-build` library, the server's HTTP request handler logic is dynamically changed without recompiling the Rust program.

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(raviqqe.com)
Development Hot Reloading

Six Deadly Sins of Platform Teams: Avoiding DevOps Pitfalls

2025-01-08
Six Deadly Sins of Platform Teams: Avoiding DevOps Pitfalls

This article explores six common pitfalls that platform teams encounter when implementing DevOps. These seemingly subtle issues can severely limit a platform team's effectiveness. Drawing on personal experience, the author delves into the root causes and provides solutions for problems related to team naming, lack of empathy, short-term versus long-term focus imbalance, confusing ease of use with simplicity, treating product engineers as customers, and over-expanding their domain. The article stresses that platform teams should focus on solving problems rather than specific solutions, build strong communication and collaboration with product teams, balance short-term and long-term goals, strive for simplicity over mere ease of use, and always prioritize end-user value.

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(serce.me)
Development Platform Teams

Scsh Manual's Author's Self-Deprecating Acknowledgements

2025-01-08

Olin Shivers, author of the Scsh reference manual version 0.6.7, offers a darkly humorous take on acknowledgements. He satirizes his colleagues, students, parents, and department chair, confessing his reliance on Prozac and Jack Daniel's to get through the day, hinting at the stress and dissatisfaction he faced during the manual's creation. The entire acknowledgement is filled with negativity and self-deprecation; it's less a thank you and more a sardonic commentary on the academic environment and his personal circumstances.

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(scsh.net)
Development Reference Manual Dark Humor

Minimum Bipartite Matching via Riemann Optimization

2025-01-08

This paper presents a novel approach to solving the minimum bipartite matching problem using Riemann optimization. The author transforms the combinatorial optimization problem into an unconstrained optimization problem on the manifold of doubly stochastic matrices and solves it using Riemann gradient descent. Experimental results show that this method can effectively find the optimal solution and has good convergence. This research cleverly combines combinatorial mathematics, differential geometry, and computer science, providing a new perspective for solving such problems.

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(ocramz.github.io)
Development Riemann optimization bipartite matching combinatorial optimization

QMK Autocorrect: On-Keyboard Typo Correction

2025-01-08

QMK firmware now includes autocorrect, offering real-time typo correction directly on your keyboard. Using a Trie data structure, it efficiently corrects common misspellings (e.g., 'ouput' to 'output') with minimal resource overhead (1672 bytes for 71 entries, ~20µs per keypress). It's case-insensitive, customizable via a dictionary, and currently supports only alphanumeric characters and apostrophes. While limited to English, it significantly enhances typing efficiency for programmers and similar users.

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(getreuer.info)
Development Autocorrect Keyboard Firmware

Build an OS in 1000 Lines of Code: A Beginner's Guide

2025-01-08

This book guides you through building a small operating system from scratch, step-by-step. While OS kernel development may sound daunting, the fundamental functions are surprisingly simple. Using C, you'll implement context switching, paging, user mode, a command-line shell, a disk driver, and file I/O—all within 1000 lines of code. The challenge? Debugging. You'll learn debugging techniques essential for OS development, tackling challenges like the boot process and paging. Get ready for an exciting journey into the world of OS development!

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(operating-system-in-1000-lines.vercel.app)
Development

DEF CON Security Chief Faces Massive Medical Bills After Neck Injury

2025-01-08
DEF CON Security Chief Faces Massive Medical Bills After Neck Injury

Marc Rogers, DEF CON's head of security, is facing tens of thousands of dollars in medical bills after a neck injury left him temporarily quadriplegic. Initially experiencing minor symptoms, delayed MRI scans due to insurance issues worsened his condition. He underwent emergency surgery and is now recovering. Despite the substantial medical costs, he's partially regained function and continues his cybersecurity work. Friends have launched a fundraiser to help cover the expenses.

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(www.theregister.com)
Tech medical emergency fundraiser

Browser-Based VGA 1D Cellular Automata Simulation

2025-01-08

Alexander Mordvintsev's TinyTapeout '09 project runs a 60fps 640x480 VGA signal directly in your browser. This single 160x100 μm chip simulates a scrolling animation of several elementary 1D cellular automata rules. The WebAssembly-based simulator, visualized with SwissGL, displays gate-level activations. This demonstrates impressive computational density, showcasing the ability to fit complex calculations onto a tiny chip. Links to the design repository and demo page are provided.

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(znah.net)
Hardware Cellular Automata

Python Concurrency: Threads, Processes, and Asyncio – A Deep Dive

2025-01-08
Python Concurrency: Threads, Processes, and Asyncio – A Deep Dive

This article summarizes the strengths and weaknesses of three approaches to Python concurrency: threads, processes, and asyncio. Threads share resources and are easy to use, but are limited by the GIL; processes have independent memory spaces, bypassing the GIL but with higher overhead; asyncio uses a single-threaded event loop, efficiently handling I/O-bound tasks, but requires non-blocking operations and has a steeper learning curve. The choice depends on the task type: CPU-bound tasks favor processes, I/O-bound tasks favor asyncio, and threads are suitable for other cases.

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(newvick.com)
Development Python concurrency threads

The US Govt's Failed Attempt to Replace Migrant Farmworkers with High Schoolers

2025-01-08
The US Govt's Failed Attempt to Replace Migrant Farmworkers with High Schoolers

In 1965, following the end of the Bracero Program, the US government launched the A-TEAM, recruiting high school students to replace Mexican migrant farmworkers. Facing brutal working conditions and inadequate housing, many students quit or went on strike. The program's failure highlights the exploitation of migrant workers and the lack of understanding regarding the arduous nature of their jobs. This historical event offers valuable insights into the complexities of immigration and labor issues.

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(www.npr.org)
Misc immigration labor rights social experiment

Debouncing Switches: It's More Complex Than You Think

2025-01-08

This article delves into the complexities of mechanical switch bouncing. The author conducted experiments on 18 different switch types, revealing bounce times ranging from nanoseconds to hundreds of milliseconds, significantly impacted by switch type and actuation method. The findings highlight the inadequacy of simple software debouncing techniques for all scenarios, emphasizing the need for context-specific hardware or software solutions. Analysis reveals that besides physical contact bounce, analog signal transitions within TTL logic levels contribute to logical bouncing. The results challenge assumptions about switch behavior and call for more robust debouncing strategies.

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(www.ganssle.com)
Hardware switch debouncing

Bitwarden Service Status: Recent Outages and Latency Issues

2025-01-08

Bitwarden password manager has experienced several service outages and latency issues recently. On January 7th, US and EU cloud services, including Identity Service, RESTful API, and Web Vault, underwent maintenance and experienced intermittent access problems. On January 8th, US cloud services also experienced degraded service, with users encountering unexpected errors or access denied during login. The Bitwarden team is actively monitoring and resolving the issues. Users are advised to try different network connections to resolve access problems.

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(status.bitwarden.com)
Tech outages

GPUs Are So Fast, Why Do We Still Need CPUs?

2025-01-08
GPUs Are So Fast, Why Do We Still Need CPUs?

A viral video uses a painting duel to illustrate the performance difference between CPUs and GPUs: a CPU painstakingly draws a smiley face, while a GPU instantly renders the Mona Lisa. But this overlooks a crucial point: program types. CPUs excel at sequential instructions, while GPUs thrive on parallel processing. Most applications blend sequential and parallel code; for example, a program might be 50% parallelizable. CPUs are like head chefs, adept at handling unexpected events; GPUs are like line cooks, mastering repetitive tasks. Chips like Apple's M3 integrate both, combining CPU flexibility with GPU computing power.

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(codingstuff.substack.com)
Tech parallel processing

Do It in Jeans First: A Startup's Guide to Iterative Progress

2025-01-08
Do It in Jeans First: A Startup's Guide to Iterative Progress

This article advocates for a pragmatic approach to tackling projects, dubbed the "jeans first" method. The author, drawing on years of hiking and startup experience, argues for starting with readily available, simple solutions before investing in expensive or time-consuming upgrades. This approach minimizes upfront costs and risk, allowing for iterative improvements based on gained experience. Examples include using basic tools for product testing and customer feedback instead of immediately deploying sophisticated solutions.

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(www.gkogan.co)
Startup Efficiency Methodology

Servo's Resurrection: Two Years of Progress at Igalia

2025-01-08

Two years after Igalia took over maintenance of the Servo project, significant progress has been made. They've addressed numerous bugs, improved stability, and added support for Android and OpenHarmony. Active community building and collaborations have led to a substantial increase in contributors and code activity. While still experimental, Servo's performance and security advantages position it for significant future growth, potentially becoming the ideal web engine for embedded systems and Rust applications.

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(blogs.igalia.com)
Development Web Engine

SAT Solver Etudes I: A Deep Dive into Boolean Satisfiability

2025-01-08
SAT Solver Etudes I: A Deep Dive into Boolean Satisfiability

This blog post explores the fascinating world of SAT solvers, tracing their evolution from simple brute-force approaches to sophisticated algorithms like Davis-Putnam and Conflict-Driven Clause Learning (CDCL). It compares different techniques, highlighting recent advancements such as congruence closure, clausal equivalence sweeping, and bounded variable addition that have dramatically improved performance. The author provides Python code examples illustrating brute-force, Davis-Putnam-based, and given-clause-loop solvers. The post also touches upon partial evaluation techniques and future research directions, making it a compelling read for anyone interested in the intricacies of Boolean satisfiability.

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(www.philipzucker.com)
AI SAT solver

Hyperview: Native Mobile Apps as Easy as Websites

2025-01-08
Hyperview: Native Mobile Apps as Easy as Websites

Hyperview is a new hypermedia format and React Native client for building server-driven mobile apps with the ease of website creation. It renders screens by fetching Hyperview XML (HXML) content from a server, supporting various backend technologies like Django, Rails, or Node. Updates are instant via backend changes, eliminating lengthy app store review times. Hyperview excels for network-based apps (social networks, marketplaces, media browsing), but isn't ideal for apps heavily reliant on offline data or local computation.

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(hyperview.org)
Development native mobile app server-driven

Sci-Hub Hosts 85% of Retracted Papers Without Indication

2025-01-08
Sci-Hub Hosts 85% of Retracted Papers Without Indication

Ars Technica reports that the research paper sharing site Sci-Hub continues to host a significant number of retracted papers, with 85% lacking any indication of retraction. Sci-Hub circumvents paywalls by illegally obtaining PDFs, providing access to researchers. However, its database lacks an effective update mechanism, meaning retracted papers remain available, potentially leading to miscitations and wasted resources. Researchers urge Sci-Hub to update its database to flag retracted papers and uphold academic integrity.

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(arstechnica.com)
Tech retracted papers academic integrity

When Will We Fix the World's Crumbling Software?

2025-01-08
When Will We Fix the World's Crumbling Software?

Software underpins the modern world, yet its quality is shockingly inconsistent. Industries like healthcare, retail, and airlines rely on outdated, inefficient software, hindering productivity and potential. The author calls for urgent attention to these neglected areas, advocating for investment in updating crucial software tools to unleash the full potential of professionals and move beyond inefficient, outdated systems.

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(www.cgustavo.com)
Development technological disparity tool upgrades

How a Browser Silently Blocks RWX Execution

2025-01-08
How a Browser Silently Blocks RWX Execution

A security researcher discovered a browser's EDR-like mechanism that blocks RWX shellcode execution. By hooking the BaseThreadInitThunk() API, the browser intercepts thread creation and checks if the shellcode memory attributes are PAGE_EXECUTE_READ. If not, it redirects the thread's execution to a 'sinkhole', preventing malicious code from running. While simple, this unexpected feature highlights a browser's proactive security measures, significantly increasing the difficulty of exploiting RWX memory regions.

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(rwxstoned.github.io)
Tech browser security thread injection
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