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JWST Detects Potentially Biosignature Gases on Exoplanet K2-18b

2025-04-17
JWST Detects Potentially Biosignature Gases on Exoplanet K2-18b

Using the James Webb Space Telescope, scientists have detected signs of dimethyl sulfide and dimethyl disulfide in the atmosphere of exoplanet K2-18b, chemicals produced by marine life on Earth. While not definitive proof of life, researchers call it the most promising sign yet of life beyond our solar system. K2-18b resides in the habitable zone, possessing the potential for liquid water, making life a possibility. This builds upon prior research identifying methane and carbon dioxide in K2-18b's atmosphere. Although alternative explanations exist, researchers are excited about the discovery and plan further investigation to confirm their findings.

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(www.skyatnightmagazine.com)
Tech biosignature

Object-Oriented Python Enigma Machine Implementation

2025-01-25

This blog post details an object-oriented Python implementation of the Enigma cipher machine. Based on the description in 'The Code Book', the author models each component (rotors, plugboard, reflector, etc.) as a class, simulating the encryption/decryption process. This simplified implementation includes three rotors, a plugboard, and a reflector, omitting the ring setting. The author highlights the ease of simulating the Enigma machine in code compared to physically building one, underscoring the power of modern computing.

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(christopherchmielewski.xyz)
Development Enigma Machine

Pixel 4a Battery Update Disaster: Old Firmware Gone, Users Trapped

2025-01-29
Pixel 4a Battery Update Disaster: Old Firmware Gone, Users Trapped

Google's Pixel 4a battery performance update has turned into a disaster. The update is causing extreme battery drain for many users, and worse, Google removed the older firmware, making it impossible to roll back. Intended to improve battery life, the update has instead made things significantly worse. Affected users are left with Google's compensation offer: a free battery replacement, $50 cash, or a $100 credit towards a new Pixel. This incident highlights the risks of software updates and Google's shortcomings in handling updates for older devices.

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(www.androidcentral.com)
Tech Battery Update Software Glitch

Building a TPU from Scratch: A Fool's Errand?

2025-08-19

A team of hardware novices, driven by a desire to prove their capabilities, embarked on the ambitious project of building a TPU from the ground up. Rejecting the easy route of research, they adopted a 'hacky' approach, starting with a fundamental understanding of neural network mathematics. They constructed a systolic array for matrix multiplication, cleverly incorporating double buffering, pipelining, and a vector processing unit to achieve both inference and training on the XOR problem. Their success in building a fully functional TPU showcases remarkable ingenuity and perseverance.

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(www.tinytpu.com)
Hardware

Distr: Simplifying Enterprise Software Distribution

2025-01-30
Distr: Simplifying Enterprise Software Distribution

Distr simplifies distributing enterprise software to customer-controlled or shared-responsibility environments. It features an intuitive web UI for viewing deployments and agents, a white-label customer portal for customer control, an API accessible via a rich SDK, and is fully open-source and self-hostable. The Distr Hub is distributed as a Docker image with a Docker Compose example deployment. Comprehensive documentation covers self-hosting and building from source, and a JavaScript SDK is available for application integration.

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(github.com)
Development Software Distribution

Exoplanet Tylos: A Lava Planet Defying Our Understanding of Weather

2025-02-19
Exoplanet Tylos: A Lava Planet Defying Our Understanding of Weather

Astronomers using the European Southern Observatory's Very Large Telescope have conducted in-depth research on an exoplanet named Tylos (WASP-121b). Located 900 light-years from Earth, this planet has a 30-hour orbital period, with one side perpetually scorching and the other perpetually dark. By analyzing its atmospheric iron, sodium, and hydrogen elements, researchers discovered an unprecedented phenomenon: a high-speed jet stream at the equator, alongside a lower atmospheric flow transporting gas from the hot side to the cold side. This bizarre climate pattern challenges our understanding of planetary weather systems and reads like something out of science fiction.

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(arstechnica.com)
Tech atmospheric circulation

Apple's Software Quality Crisis: Premium Hardware, Subpar Performance

2025-03-03
Apple's Software Quality Crisis: Premium Hardware, Subpar Performance

A long-time Apple user details persistent performance issues with their iPad Air 11" M2, experiencing significant lag and overheating when using Apple's own apps like Notes and Freeform. Even after a hardware replacement, the problems persist, indicating a software optimization problem rather than a hardware defect. The author points to a potential prioritization of new features over software stability and thorough testing, questioning Apple's commitment to its once-prized user experience. The article highlights growing user concerns and calls for Apple to address these issues and return to its focus on quality.

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(www.eliseomartelli.it)
Tech Software Quality

15-Year-Old Builds $30 Open-Source Phone: Challenging the Smartphone Industry

2025-01-26

Gabriel Rochet, a 15-year-old, has created Paxo Phone, a fully functional open-source smartphone built for just $30. This DIY phone utilizes open-source hardware and software, boasting high modularity and customizability, allowing users to modify both hardware and software to fit their needs. Paxo Phone challenges the closed and irreparable nature of the traditional smartphone industry, offering a practical platform for learning electronics and computer technology while prompting reflection on digital freedom and the repairability of electronic devices.

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(paxo.fr)
Tech DIY phone

Using eSIMs on Devices with Only Physical SIM Slots: A 9eSIM Review

2025-01-20
Using eSIMs on Devices with Only Physical SIM Slots: A 9eSIM Review

This blog post details using a 9eSIM SIM card to enable eSIM functionality on devices that only accept physical SIM cards, tested on Android and Linux. The author purchased a 9eSIM bundle including the SIM, smartcard reader, and adapter. Initial setup proved slightly tricky, requiring the SIM card to be used within its original packaging for proper reader connection. Adding, switching, and deleting eSIM profiles was straightforward using an Android app or the Linux command-line tool lpac (and its GUI, EasyLPAC). Tests were conducted with free test eSIM profiles and a paid LycaMobile eSIM, successfully achieving eSIM connectivity on a Debian Linux laptop.

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(neilzone.co.uk)
Hardware physical SIM

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.

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(vitodeploy.com)
Development Deployment Tool

Debunking the Myth: Thomas Watson and the Five Computers

2025-01-24

The widely circulated quote attributed to IBM's Thomas Watson, "I think there is a world market for maybe five computers," is revealed to be an urban legend. This article traces the quote's origins, demonstrating it's not from 1943, but a misinterpretation of his remarks at a 1953 shareholder meeting. Watson discussed sales projections for the IBM 701, not the entire computer market. This highlights the importance of verifying online information and the spread of misinformation.

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(geekhistory.com)
Tech Urban Legend

cURL and Go Security Teams Reject Flawed CVSS Scoring System

2025-01-27
cURL and Go Security Teams Reject Flawed CVSS Scoring System

The cURL and Go security teams have publicly denounced the Common Vulnerability Scoring System (CVSS) as flawed for assessing vulnerabilities, advocating for more accurate, context-aware approaches. CVSS's one-size-fits-all approach often leads to misleading scores, especially for projects like cURL with billions of installations. Daniel Stenberg, cURL's creator, highlighted CVSS's failure to account for specific contexts, resulting in inflated or inaccurate scores. The Go security team echoed these sentiments, opting for context-driven severity assessments instead. This highlights growing dissatisfaction with CVSS and pushes for better alternatives. However, this context-driven approach faces challenges, as maintainers struggle to accurately gauge all user scenarios. A culture clash between security researchers and open-source maintainers further complicates the issue, with researchers seeking recognition and maintainers focusing on practical impact. The NVD's backlog problem exacerbates the situation.

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(socket.dev)
Development Open Source Security Vulnerability Assessment

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.

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(kilpi.vercel.app)
Development data authorization

Saying Goodbye to bcachefs: One User's Reluctant Migration

2025-01-23

After a year of using bcachefs, Steinar Gunderson has migrated to XFS. His reason? A lack of confidence in bcachefs' future. While appreciating its compression and mixed SSD/HDD capabilities, he found the developer's uncompromising attitude, hostility towards distributions like Debian, and numerous unfixed bugs (including catastrophic data loss) unbearable. Reporting bugs proved a frustrating experience, with the developer prioritizing arguments with Debian over bug fixes. He ultimately chose the stability of XFS, sacrificing compression benefits, a trade-off he deems worthwhile.

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(blog.sesse.net)
Development

Calculating Reciprocal Throughput in LLVM's Scheduling Model

2025-03-30

This post delves into the calculation of reciprocal throughput within LLVM's instruction scheduling model. LLVM's scheduling model describes an instruction with three key properties: latency, hardware resources used, and the number of cycles it holds each resource. While the traditional approach uses the maximum release cycle to calculate reciprocal throughput, this breaks down when non-zero acquire cycles are present. By analyzing resource segments and the instruction scheduling process, the author derives a new method: using the length of the longest segment across all hardware resources as the reciprocal throughput. This addresses the shortcomings of the traditional method when dealing with resource segments, providing a more accurate basis for performance optimization in the LLVM compiler.

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(myhsu.xyz)
Development Instruction Scheduling

Tattoos and Cancer Risk: A Twin Study Reveals Increased Hazard

2025-03-04
Tattoos and Cancer Risk: A Twin Study Reveals Increased Hazard

A study using the Danish Twin Tattoo Cohort reveals a heightened risk of lymphoma and skin cancer among tattooed individuals compared to their non-tattooed counterparts. Employing both twin cohort and case-cotwin study designs, the research indicates a stronger association with larger tattoos. The researchers hypothesize that ink deposits may interact with surrounding tissue, triggering an immune response and increased cell proliferation, thus raising cancer risk. However, limitations include a lack of sun exposure data and detailed tattoo type classification. Further research is urged to clarify the etiological pathway of tattoo ink-induced carcinogenesis and inform public health policy.

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(bmcpublichealth.biomedcentral.com)
Tech tattoos cancer risk twin study

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.

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(www.uni-stuttgart.de)
Tech biomimicry 4D printing sustainable building

Becoming a Great Engineer: Beyond the Paycheck

2025-03-09

This article delves into what makes a truly excellent software engineer. It argues that passion and ambition are crucial, going beyond simply collecting a paycheck. The author emphasizes a deep understanding of computer fundamentals, continuous learning, critical thinking, and practical application of knowledge. Specific projects like building a compiler or emulator are suggested, highlighting the importance of building from foundational principles. The article also stresses self-critique and the pursuit of excellence as key elements for growth.

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(0x0001.cc)
Development Learning

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.

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(discmaster.textfiles.com)
Misc data archive file format conversion

Itch.io's Payment Processing Predicament: Is Building Your Own System the Answer?

2025-08-16

Itch.io faced backlash after payment processors forced them to remove adult content. Many suggested Itch.io create its own payment system or use one that handles adult material. A seasoned SRE with a background in finance and tech debunks these easy solutions. The article details the immense challenges of building a payment processor: bank sponsorship, licensing, KYC/KYCC compliance, and substantial security and compliance costs. Even finding an adult-content-friendly processor (like CCBill) comes with exorbitant fees and risks. The core issue, however, is that any part of the payment chain can be influenced by political pressure or moral censorship. Switching processors won't solve Itch.io's fundamental problem. The author ultimately pleads for understanding of Itch.io's position and a search for systemic solutions, rather than simple blame or boycotts.

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(voidfox.com)
Tech adult content

The Extraordinary Life of Potoooooooo: A Racing Legend

2025-01-16
The Extraordinary Life of Potoooooooo: A Racing Legend

Potoooooooo, a chestnut thoroughbred with a legendary status, is renowned for his unusual name and spectacular racing career. He won over 25 races, his name, a humorous misspelling of "Potatoes," adding to his colorful story. After retirement, Potoooooooo became a significant sire, his offspring including multiple Epsom Derby winners. His genetic legacy continues to shape thoroughbred racing to this day.

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(en.wikipedia.org)
Misc horse racing thoroughbred pedigree

13 Plays to Build Great Government Digital Services

2025-02-23

This article outlines 13 key steps for building excellent government digital services. It covers user needs research, end-to-end experience design, simple and intuitive interfaces, agile iterative development, budget and contract management, team leadership and member selection, technology stack selection, flexible hosting environments, automated testing and deployment, security and privacy management, data-driven decision-making, and open principles. Each step provides a detailed checklist and key questions to help government agencies build user-centered, efficient, reliable, and secure digital services, ultimately improving the public service experience.

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(playbook.usds.gov)
Development digital services

Online Dictionary of Affixes: 1250+ Entries

2025-03-01
Online Dictionary of Affixes: 1250+ Entries

This online dictionary boasts over 1250 entries, each illustrated with roughly 10,000 examples and clear definitions. It's based on the book *Ologies and Isms: Word Beginnings and Endings*, originally published by Oxford University Press in 2002. The book went out of print in 2008, prompting the author to make it freely available online. The site is currently undergoing revisions and updates.

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(www.affixes.org)
Development dictionary affixes

Is ChatGPT's Autocomplete a UX/UI Fail?

2025-02-17
Is ChatGPT's Autocomplete a UX/UI Fail?

This article questions the UX/UI design of ChatGPT's autocomplete feature. The author argues that while autocomplete is helpful in search bars due to a limited response space and high success rate, it's disruptive in chat. ChatGPT frequently fails to predict user input, interrupting their thought process and causing frustration. The author likens ChatGPT's autocomplete to a colleague constantly interrupting conversations, questioning the design's usability and expressing confusion about its perceived value.

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(honzabe.com)
Development

News Overload: How Do I Process Information Effectively?

2025-03-09

The author canceled all daily newspaper subscriptions, keeping only a cooperatively-owned weekly and a French magazine. He finds that more and more online news sites have paywalls, ads, and intrusive scripts, leading him to abandon online news reading. He reflects on the changing attention economy and questions current payment models, finding per-article payments or multiple subscriptions too expensive and impractical. He considers subscribing to the Swiss digital newspaper Republik to support media diversity but struggles to process the vast amount of information effectively. The article concludes with a question about how to process news, reflecting the common dilemma of information overload.

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(alexschroeder.ch)
Misc paywalls media ecosystem

Mysterious Squares in Windows Filenames: A UTF-16 Surrogate Pair Adventure

2025-02-26

This article describes a curious phenomenon in Windows: many small executables with strange squares in their names appearing in Task Manager. These files are not malicious; the issue stems from the use of UTF-16 surrogate pairs in filenames. UTF-16, to accommodate extended Unicode characters, uses surrogate pairs to represent characters beyond the Basic Multilingual Plane. When string manipulation produces isolated or malformed surrogate pairs, filenames become unrenderable. The article explains surrogate pairs and provides a Python script to generate files with unrenderable filenames, reproducing the phenomenon.

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(zaferbalkan.com)
Development Surrogate Pairs

DeepSeek-R1: A Reasoning Model Trained with Reinforcement Learning, No Supervised Fine-tuning Needed

2025-01-20
DeepSeek-R1: A Reasoning Model Trained with Reinforcement Learning, No Supervised Fine-tuning Needed

The DeepSeek team open-sourced its first-generation reasoning models, DeepSeek-R1, and a suite of distilled models. DeepSeek-R1-Zero, trained via large-scale reinforcement learning (RL) without supervised fine-tuning (SFT), demonstrates remarkable reasoning capabilities, though it has some flaws. DeepSeek-R1 addresses these issues by incorporating cold-start data before RL, achieving performance comparable to OpenAI-o1. Six distilled models based on Llama and Qwen are also open-sourced, with DeepSeek-R1-Distill-Qwen-32B outperforming OpenAI-o1-mini on various benchmarks. The project supports commercial use and provides an online chat website and an OpenAI-compatible API.

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(github.com)
AI reasoning

Federal Data Vanishing: Civil Society Steps Up to Save the Day

2025-02-13
Federal Data Vanishing: Civil Society Steps Up to Save the Day

Hundreds of federal datasets and government websites have mysteriously disappeared or been drastically altered since the start of the Trump administration. Responding to this crisis, civil society organizations are taking action. Harvard's Library Innovation Lab recently released 16 terabytes of archived data.gov, a complete copy of the platform's former holdings. On February 13th at 3 PM Eastern, MuckRock will host an event featuring the Internet Archive and the Harvard Law School Library Innovation Lab, discussing at-risk data, how to access rescued data, and how to contribute to preservation efforts.

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(www.muckrock.com)
Tech government data

AtomixDB: A Tiny Relational Database in Go

2025-02-26
AtomixDB: A Tiny Relational Database in Go

AtomixDB is a mini relational database entirely written in Go, focusing on implementing and understanding database workings, storage management, and transaction handling. It utilizes a B+ tree storage engine with indexing support, features free list node reuse, transaction support, and concurrent reads. Currently, it supports CREATE, INSERT, GET, UPDATE, DELETE, BEGIN, COMMIT, and ABORT commands. The project is open-source and welcomes contributions.

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(github.com)
Development
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