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Heart Rate Zone Tracker: Master Your Cardiovascular Training

2025-04-28

Heart Rate Zone Tracker: Master Your Cardiovascular Training

This isn't just another fitness tracker; it's a focused app designed to help you understand your cardiovascular training through heart rate zone analytics. Track your time spent in each heart rate zone daily, weekly, monthly, and more. Set personalized goals, choose from various scientifically-backed methods to calculate your maximum heart rate, and visualize your progress with intuitive charts. The app supports dark and light modes and prioritizes your privacy by keeping your health data securely on your device. Ideal for runners, cyclists, swimmers, and anyone training with heart rate zones.

(apps.apple.com)

Tech heart rate tracking cardiovascular training

Microplastics Found in Human Brains: A Spoonful of Worry

2025-02-06

Microplastics Found in Human Brains: A Spoonful of Worry

A groundbreaking study published in Nature Medicine reveals alarming levels of microplastics and nanoplastics in human brains—up to seven grams, roughly the weight of a teaspoon. The concentration increased by about 50% between 2016 and 2024, with higher levels found in individuals with dementia. While a causal link to dementia isn't established, the sheer presence of these particles deep within the brain is concerning. Researchers hypothesize that microplastics may travel to the brain via the bloodstream, binding to fats. This discovery underscores the urgent need for reducing microplastic exposure and further research into the long-term health impacts.

(www.smithsonianmag.com)

Tech

50-Year Latency: Woman Dies From Prion Disease Contracted in Childhood

2025-05-30

50-Year Latency: Woman Dies From Prion Disease Contracted in Childhood

Scientists report a rare case of Creutzfeldt-Jakob disease (CJD) in a 58-year-old woman, likely contracted through contaminated human growth hormone (HGH) treatments received 50 years prior. This potentially represents the longest documented latency period for this fatal disease. The case highlights the insidious nature of prion diseases: long incubation periods and resistance to standard sterilization methods. While cadaver-derived HGH is banned, the potential for delayed onset cases remains a concern.

(gizmodo.com)

Tech prion disease Creutzfeldt-Jakob disease human growth hormone

Unlocking Google Search: The Secret Power of the `udm` Parameter

2025-06-21

Unlocking Google Search: The Secret Power of the `udm` Parameter

Tired of cluttered Google search results filled with Knowledge Graphs, Local Results, and Related Questions? This article unveils the lesser-known `udm` parameter in Google search URLs, allowing you to precisely control the type of results returned. Learn how to filter for web results (udm=14), images (udm=2), news (udm=12), and much more. A comprehensive list detailing country codes and their corresponding `udm` values is provided, empowering you to explore the hidden depths of Google Search.

(serpapi.com)

Tech URL Parameters

Low-Background Steel: A Digital Archive Against AI Contamination

2025-06-10

Low-Background Steel: A Digital Archive Against AI Contamination

Launched in March 2023, Low-background Steel (https://lowbackgroundsteel.ai/) is a website dedicated to archiving online resources untouched by AI-generated content. Using the analogy of low-background steel (metal uncontaminated by radioactive isotopes from nuclear testing), the site curates pre-ChatGPT Wikipedia dumps, the Arctic Code Vault, Project Gutenberg, and more. Its goal is to preserve and share pristine text, images, and videos, combating the explosion of AI-generated content since 2022. Submissions of uncontaminated content sources are welcome.

(blog.jgc.org)

AI AI contamination

Linus Torvalds to Gift Handmade Guitar Pedal

2025-01-13

Linus Torvalds to Gift Handmade Guitar Pedal

Linus Torvalds, the creator of the Linux kernel, is giving away a hand-built guitar effects pedal to a lucky kernel contributor. This unusual giveaway, announced in his weekly kernel release notes, serves as both a thank-you and a test to see if anyone actually reads his announcements. Torvalds, describing himself as a 'software person with a soldering iron,' will assemble an Aion FX pedal kit, promising a unique, if somewhat unpredictable, reward reflecting the quirky culture of the open-source community.

(www.theregister.com)

Development

Framework 13's Disappointing Battery Life: A Tale of Two Laptops

2025-09-22

Framework 13's Disappointing Battery Life: A Tale of Two Laptops

The author compares the battery life of their MacBook M1 Pro and Framework 13 laptops. The M1 Pro retained 90% charge after three weeks of inactivity, while the Framework 13 (with an AMD Ryzen 7840HS) frequently dies after a few days. This stark contrast highlights the superior battery efficiency of ARM64 architecture, leading the author to consider an ARM motherboard upgrade for their Framework. Despite this issue, the author still loves the Framework's modular design, but the poor battery life significantly impacts usability.

(simonhartcher.com)

Hardware battery life

The Evolution of DNS Security: From Trust Crisis to Encrypted Future

2025-05-24

The Evolution of DNS Security: From Trust Crisis to Encrypted Future

Initially lacking robust security mechanisms, DNS was vulnerable to various attacks, including cache poisoning and man-in-the-middle exploits. DNSSEC addressed this by adding cryptographic authentication and data integrity, but adoption remains slow. Internationalized Domain Names (IDNs) solved DNS's ASCII limitations, enabling multilingual internet access. Recently, encrypted DNS protocols like DoH, DoT, DoQ, and ODoH have boosted user privacy and performance, while introducing trade-offs regarding network visibility and operational complexity.

(axonshield.com)

Tech encrypted DNS internationalized domain names

Terminator: The AI Coding Assistant Guardian Angel

2025-05-24

Terminator: The AI Coding Assistant Guardian Angel

Tired of AI coding assistants like Cursor being interrupted by stuck command loops? Terminator, a powerful AppleScript-driven terminal session manager, solves this problem! It achieves process isolation by running commands in separate terminal sessions, keeping your AI assistant responsive even with hanging commands. Terminator creates and manages persistent terminal sessions, isolates command execution, intelligently interrupts busy processes, and provides reliable session state management. With simple commands, you can easily train your AI assistant to use Terminator, boosting efficiency and avoiding frustrating workflow interruptions.

(github.com)

Development terminal session management

Microsoft Integrates Musk's Controversial AI, Grok, into Azure

2025-05-19

Microsoft Integrates Musk's Controversial AI, Grok, into Azure

Microsoft has become one of the first hyperscalers to offer managed access to Grok, the controversial AI model from Elon Musk's xAI. Available via Azure AI Foundry, Grok 3 and Grok 3 mini boast Microsoft's service-level agreements and billing. Known for its unfiltered and edgy responses, including the use of vulgar language, the Azure versions are more controlled and include enhanced data integration, customization, and governance features. While the X platform's Grok has faced controversy for biased outputs and sensitive topic handling—including incidents like undressing women in photos and censoring negative comments—the Azure versions aim for improved safety and reliability.

(techcrunch.com)

AI

Jupiter's Gigantic Past: Twice the Size, 50x Stronger Magnetic Field

2025-05-21

Jupiter's Gigantic Past: Twice the Size, 50x Stronger Magnetic Field

New research reveals a surprising past for Jupiter: it was once twice its current size and boasted a magnetic field 50 times stronger than today's! By analyzing the orbital tilts of Jupiter's tiny moons, researchers calculated Jupiter's size and magnetic field strength at a pivotal moment when the surrounding solar nebula evaporated. This finding provides crucial evidence for understanding the formation and evolution of our solar system and adds detail to existing planet formation theories.

(phys.org)

Tech Solar System Formation Planetary Science

US Army Soldier Arrested for AT&T, Verizon Extortion

2024-12-31

A 20-year-old US Army soldier, Cameron John Wagenius, has been arrested and indicted for his alleged role as Kiberphant0m, a cybercriminal who sold and leaked sensitive customer call records stolen from AT&T and Verizon earlier this year. Wagenius, a communications specialist stationed in South Korea, was linked to another cybercriminal, Connor Riley Moucka, who was also arrested for data theft and extortion. The indictment charges Wagenius with illegally transferring confidential phone records, including threats to leak call logs of the President and Vice President, and selling Verizon PTT customer call records and offering SIM-swapping services. The case highlights the need for strong internal security and demonstrates law enforcement's increasing effectiveness in apprehending cybercriminals.

(krebsonsecurity.com)

Tech cybercrime US Army soldier

ASKAP Uncovers 15 Giant Radio Galaxies

2025-04-26

ASKAP Uncovers 15 Giant Radio Galaxies

The Australian Square Kilometre Array Pathfinder (ASKAP) telescope has discovered 15 new giant radio galaxies, each spanning over 3 million light-years. These rare galaxies, typically found in low-density environments, feature jets and lobes of synchrotron-emitting plasma. ASKAP's high sensitivity and wide field of view were crucial in this discovery, providing valuable data for studying the formation and evolution of radio galaxies. The largest galaxy, ASKAP J0107–2347, is a double-double radio galaxy with two sets of double lobes; its newly formed inner lobes already stretch about 2 million light-years.

(phys.org)

Tech radio galaxies

Debugging React Server Components in Next.js with OpenTelemetry

2025-01-23

Debugging React Server Components in Next.js with OpenTelemetry

React Server Components (RSCs) offer performance benefits but introduce debugging challenges. This article demonstrates using OpenTelemetry, a powerful observability framework, to trace RSC activity within Next.js applications. OpenTelemetry allows tracing requests, collecting metrics, and aggregating logs, giving developers insights into server-side component execution, including lifecycle events, data fetching operations, and rendering performance. A real-world case study showcases optimizing a page loading numerous GitHub API calls using OpenTelemetry. The article details installing necessary packages, creating an instrumentation.js file, and configuring data export destinations. It also explains creating custom spans for more granular insights.

(www.dash0.com)

Development

arXivLabs: Experimenting with Community Collaboration

2025-07-04

arXivLabs is a framework enabling collaborators to develop and share new arXiv features directly on our website. Individuals and organizations working with arXivLabs share our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only partners with those who adhere to them. Have an idea to improve the arXiv community? Learn more about arXivLabs.

(arxiv.org)

Tech

Nullboard: A Minimalist Kanban Board for Offline Use

2024-12-19

Nullboard: A Minimalist Kanban Board for Offline Use

Nullboard is a minimalist kanban board prioritizing compactness and readability. A single-page web app, it stores all data locally, enabling offline use with JSON import/export functionality. Featuring drag-and-drop, autosave, and undo/redo, Nullboard offers efficient task management. Born from the developer's frustration with existing tools, it's a self-built solution now shared open-source.

(github.com)

Development kanban task management offline app

Using ed(1) as My Static Site Generator: A Quirky Experiment

2025-05-31

Artyom Bologov shares his unusual journey of building a static website using the ancient text editor ed(1). He's tried various methods, from Lisp to the C preprocessor, finally settling on ed(1) as his static site generator. While ed(1) has limitations, lacking features like file inclusion, its flexibility allows for custom syntax and processing of older preprocessor formats. He uses ed(1) scripts for preprocessing and format conversion, supporting multiple output formats (txt, gmi, 7, tex, etc.). While not a best practice, the article showcases the unexpected potential of ed(1) and the author's unique approach to text processing.

(aartaka.me)

Development

WebAuthn: The Future of Passwordless Authentication

2024-12-26

This book delves into WebAuthn, a public key cryptography-based authentication system designed to replace vulnerable password systems. Starting with the shortcomings of passwords, it progressively introduces core WebAuthn concepts, including U2F, FIDO2, passkeys, and the WebAuthn API's usage. It details public key signature schemes, RP IDs, the CTAP2 protocol, attestation, and various extensions. Server-side implementation, platform APIs (iOS, Android, Windows), and public key formats are also covered. WebAuthn combines security keys and platform authenticators, utilizing random challenges and multiple security mechanisms to effectively address phishing attacks and database leaks, providing users with a more secure and reliable authentication experience.

(www.imperialviolet.org)

AI password security Authentication Password Security

Terminal Image Viewer: A Programmer's Odyssey

2025-01-19

A programmer embarks on a challenging journey to create the perfect terminal image viewer. Starting with simple pixel display, he delves into the intricacies of loading and rendering various image formats (JPEG, PNG, GIF, AVIF, JPEG XL, HEIC, ETC, BC, OpenEXR, etc.), encountering unexpected hurdles along the way: inconsistent format standards, poorly documented libraries, the complexities of HDR image processing, the subtleties of color management, and the limitations of terminal output protocols. He ultimately overcomes these challenges to build a powerful image viewer, gaining a deep appreciation for the complexities and fascinations of computer graphics.

(wolf.nereid.pl)

Development terminal display

LunaJoy Hiring Senior QA Manual Tester

2025-03-23

LunaJoy Hiring Senior QA Manual Tester

LunaJoy, a telemental health platform specializing in women's mental health across the lifespan, is hiring a Senior QA Manual Tester. They offer psychotherapy, medication evaluations, nutritional psychiatry, and mind-body interventions, integrating directly with OB offices and health systems. The ideal candidate will possess knowledge of the Software Development Life Cycle (SDLC), test case development, bug tracking tools (like JIRA), and various testing types (functional, regression, usability, etc.). Plus, knowledge of databases and API testing experience is a plus. LunaJoy offers remote work, competitive compensation and benefits, and an inclusive work environment.

(www.workatastartup.com)

Development QA Testing Telehealth

Hacker Infects 18,000 'Script Kiddies' with Fake Malware Builder

2025-01-25

Hacker Infects 18,000 'Script Kiddies' with Fake Malware Builder

A threat actor targeted low-skilled hackers, known as "script kiddies," with a fake malware builder that secretly installed a backdoor to steal data and take over computers. Security researchers at CloudSEK report that the malware infected 18,459 devices globally, mostly in Russia, the US, India, Ukraine, and Turkey. The malware, a trojanized XWorm RAT builder, was distributed through various channels including GitHub, file hosting sites, Telegram, YouTube, and websites. While many infections were cleaned via a kill switch, some remain compromised. The malware stole data like Discord tokens, system information, and location data, and allowed remote control of infected machines.

(www.bleepingcomputer.com)

Tech

Apple Considered Portless iPhone 17 Air: A Glimpse into the Future?

2025-03-17

Apple Considered Portless iPhone 17 Air: A Glimpse into the Future?

Bloomberg's Mark Gurman reports that Apple considered releasing the iPhone 17 Air without a USB-C charging port. While ultimately scrapped, the idea remains on the table for future models. The iPhone 17 Air will "foreshadow a move to slimmer models without charging ports." Apple executives see this as a potential sea change; if successful, they intend to pursue portless iPhones more broadly. This represents a significant design shift, potentially ushering in a new era of portless smartphones.

(www.macrumors.com)

Tech Portless iPhone

Simulating Sunlight Exposure for Home Renovation using Rhino 3D and Ladybug

2025-05-05

To optimize home renovation plans, the author used Rhino 3D modeling software with the Ladybug plugin to simulate daily sunlight exposure. Simulation results revealed insufficient sunlight on the west-facing balcony, leading to the cancellation of expansion plans and significant cost savings. Surprisingly, the roof showed excellent sun exposure, opening up possibilities for future solar panel installation. The process demonstrates the practicality and efficiency of using software technology to aid in home design decisions.

(ostwilkens.se)

Design sunlight simulation home design

AI's Power Hungry Colossus: Texas Data Center Expansion Strains Grid

2025-07-15

AI's Power Hungry Colossus: Texas Data Center Expansion Strains Grid

CoreWeave's acquisition of Core Scientific and subsequent expansion of its Denton, Texas data center is projected to double the city's electricity demand. Initially used for cryptocurrency mining, the facility's pivot to AI workloads has resulted in unrelenting power consumption, straining the local grid. Denton is covering added infrastructure costs and passing some expenses to the data center operator. While the project promises significant tax revenue and job creation, concerns remain about its impact on the already stressed Texas power grid, highlighting the challenges of AI's burgeoning energy needs.

(finance.yahoo.com)

Tech

American CS Grads Face Job Crisis: Cheaper Labor Undermines Dreams

2025-07-18

American CS Grads Face Job Crisis: Cheaper Labor Undermines Dreams

American computer science graduates are facing a severe job crisis. While salaries have increased nominally, real wages have stagnated since 2015. A flood of foreign workers with work permits has drastically reduced employment rates for US graduates, even below 50% for some specializations. This isn't simple competition; it's systematic displacement. Policies like the H-1B visa program import cheaper, more compliant workers who undercut American graduates, suppressing wages and opportunities. The author calls for drastic reductions in H-1B visas and prioritization of American workers, arguing that the current system sacrifices a generation of CS graduates.

(ifspp.substack.com)

Tech Job Crisis H-1B Visas Tech Talent

Morgan Stanley Abandons Net-Zero Banking Alliance

2025-01-02

Morgan Stanley Abandons Net-Zero Banking Alliance

Morgan Stanley has followed Citigroup and Bank of America in withdrawing from the Net-Zero Banking Alliance, a global initiative aimed at reducing greenhouse gas emissions. This decision raises questions about Wall Street's commitment to climate action. While Morgan Stanley claims continued support for client transition efforts, its departure casts doubt on the future of financial institutions' involvement in climate initiatives and raises concerns about the alliance's effectiveness.

(www.bloomberg.com)

Tech

WHY2025 Badge: A Fire Hazard Waiting to Happen

2025-08-06

WHY2025 Badge: A Fire Hazard Waiting to Happen

The WHY2025 conference badge presents a significant fire hazard due to its use of unprotected 18650 lithium-ion cells. Design flaws create a high risk of short circuits, with only a thin layer of resin preventing overheating and potential fires. Despite repeated attempts to communicate the issue to organizers, unprotected cells were still distributed. This document details the design flaws and urges attendees to avoid using the provided cells to prevent a potential disaster.

(wiki.why2025.org)

Hardware hardware safety fire hazard

PostgreSQL LISTEN/NOTIFY Bottleneck: Lessons from Processing Millions of Meeting Hours

2025-07-11

PostgreSQL LISTEN/NOTIFY Bottleneck: Lessons from Processing Millions of Meeting Hours

Recall.ai processes millions of hours of meeting data each month. Their Postgres database suffered downtime due to high-concurrency writes. Investigation revealed that the LISTEN/NOTIFY feature acquires a global database lock during transaction commit, serializing all commits and creating a bottleneck. Migrating this logic to the application layer resolved the issue.

(www.recall.ai)

Development

KDE Plasma Gets a New Virtual Machine Manager: Karton

2025-05-18

KDE Plasma Gets a New Virtual Machine Manager: Karton

A new virtual machine manager, Karton, is in development for the KDE Plasma desktop environment. Funded by Google Summer of Code 2025, University of Waterloo student Derek Lin is building this Qt Quick and Kirigami-based application. Karton aims to provide a native KDE experience, using the libvirt API to manage VMs and eventually supporting cross-platform functionality. Current development focuses on core features like a new domain installer (using libosinfo instead of virt-install), a custom SPICE viewer, and more fine-grained VM configuration options. Karton is targeted for a mid-term evaluation on July 14th and final submission on September 1st.

(www.neowin.net)

Development

Indie Game Hypercharge Soars to PS5 Top 10 After Dev's Honest Post Goes Viral

2025-06-08

Indie Game Hypercharge Soars to PS5 Top 10 After Dev's Honest Post Goes Viral

Hypercharge: Unboxed, an indie action figure shooter, unexpectedly rocketed to the top 10 bestsellers on PS5 after a heartfelt developer post went viral. Initially struggling with low player counts, the five-person team behind the game responded honestly to criticism, emphasizing their focus on creating a game they loved, not chasing wealth or fame. This vulnerability resonated deeply with players, leading to a surge in sales and widespread attention. The story highlights how authenticity can triumph over big marketing budgets.

(www.polygon.com)

Game viral success developer honesty

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