Published: 2025-03-10 | Origin: Hacker News

The introduction of automatically focusing lenses has revolutionized photography by enhancing the reliability and accuracy of capturing fast-moving subjects. Since Canon released its first autofocus lens in 1981, the technology has made photography more accessible to a broader audience. Canon has continued to innovate, developing seven different autofocus motor technologies for their lenses. Autofocus technology allows lenses to automatically focus on a subject by determining the ideal position through a detection system within the camera. In 1987, Canon introduced the EOS camera system along with EF

Published: 2025-03-10 | Origin: /r/ruby

The author is transitioning from Medium to WordPress and reflects on their experience moving from Spring Boot to Ruby on Rails. Having worked with Spring Boot, Java, and JavaScript for four years, they express dissatisfaction with Java's complexity and overengineering, which often hindered straightforward development. Although they had dabbled in Rails previously, it wasn't until about a year ago that they began using it for actual projects, leading to a positive experience. They appreciate Rails' code-generating capabilities, reduced boilerplate

Published: 2025-03-10 | Origin: /r/programming

Stack traces are valuable debugging tools that provide detailed information about errors in programming, including the location of the issue in the code and the call stack. While they are common in many programming languages, their availability is inconsistent. Some languages, like C, Go, and Rust, handle errors differently by returning special values instead of raising exceptions, which can result in a lack of stack trace information. Go, for instance, gives a simpler error message without a true stack trace unless additional context is added, while Rust

Published: 2025-03-10 | Origin: /r/programming

Codyssi's 2025 Contest Round starts on March 17th, with daily problem releases at 10:00 AM GMT. Participants can register and find sample questions on the challenges page. In a narrative, a lab celebrates the discovery of Atlantis after analyzing drone data. During summer vacation, a character is diverted from their plans to assist a team on a secret mission. Codyssi focuses on coding skills, emphasizing originality in submissions and discouraging the use of AI-generated code. The website offers

Published: 2025-03-10 | Origin: /r/programming

El contenido discute la importancia de Spring Native, que se presenta como una solución a los problemas de velocidad de arranque y uso de memoria de las aplicaciones Spring debido a la inyección de dependencias y proxies. A través de GraalVM y Spring Native, se pueden lograr tiempos de inicio más rápidos y un menor consumo de recursos. Los beneficios de Spring Native se destacan en contextos de microservicios y despliegues en la nube. Se menciona también que existe la necesidad de considerar

Published: 2025-03-10 | Origin: /r/programming

UnifyDoc is an efficient file converter designed to simplify the management of various file types, catering to users like coders, teachers, and students. It consolidates multiple text files and images into a single PDF quickly and without any software installation, making it user-friendly and free. Created by a student, this tool focuses on delivering quick results while addressing gaps left by other converters. Last updated on March 9, 2025, by N&T Development.

Published: 2025-03-10 | Origin: Hacker News

Failed to fetch content - HTTP Status - 403

Published: 2025-03-10 | Origin: Hacker News

Failed to fetch content - HTTP Status - 403

Published: 2025-03-10 | Origin: Hacker News

This content is part seven of a non-fiction work by Raoul Pop about the National Radio Astronomy Observatory (NRAO) in Green Bank, West Virginia. It discusses the unique characteristics of the cars used on the NRAO campus, which are primarily older diesel models. The choice to use these specific vehicles stems from the need to minimize radio frequency interference (RFI) that can disrupt research. Gasoline-powered cars generate more RFI due to their spark plugs, while the original diesel fleet has no

Published: 2025-03-10 | Origin: /r/programming

The Engineer’s Codex discusses the strengths of Anthropic's Claude 3.7 and Claude Code in real-world software engineering tasks. Anthropic has shifted its focus in developing these models away from purely competitive programming challenges, optimizing instead for tasks that reflect actual business needs. Early testing indicates that Claude excels in coding capabilities, outperforming competitors like ChatGPT and Google's Gemini in practical applications. As Jeff Bezos noted, when there's a discrepancy between data and user experiences, the users' anecdotes are often more reliable

Published: 2025-03-09 | Origin: Hacker News

Modern operating systems operate in two main protection domains: user mode (unprivileged) and kernel mode (privileged). Most software runs in user mode, where it cannot perform high-level operations like file access or network communication directly. To execute these functions, software makes system calls to switch to kernel mode, allowing the kernel to handle the requested operations after verifying permissions. Operating systems commonly utilize a monolithic kernel design, granting the kernel full access to hardware, memory, and user data. While this design

Published: 2025-03-09 | Origin: Hacker News

arXivLabs is a platform for collaborators to create and share new features on the arXiv website, guided by values of openness, community, excellence, and user data privacy. Only partners who align with these values are involved. There is an invitation for project ideas that could benefit the arXiv community. Additionally, users can receive operational status notifications via email or Slack.

Published: 2025-03-09 | Origin: /r/programming

The content emphasizes the importance of user feedback and outlines the functionality of a regex optimizer that transforms Oniguruma patterns into optimized versions while ensuring they match the same strings. The optimizer focuses on minification and performance improvements, avoiding changes that could potentially lead to issues in edge cases. It's been tested with tm-grammars on numerous regex patterns, and while it considers flags, it does not alter top-level flags in a way that changes regex meaning. Some optimizations are always enabled and result from the parser

Published: 2025-03-09 | Origin: /r/programming

Dmap is a simple and efficient zero-friction hashmap for C, designed to outperform popular hashmaps like uthash and std::unordered_map. It supports 64-bit platforms, including Linux and Windows (macOS is untested), and allows users to store complex structs directly without the need for memory allocation or pointer indirection. Dmap uses a dynamic array to store values, facilitating efficient iteration and cache-friendly lookups. It is inspired by Per Vognsen's dynamic array implementation and is licensed

Published: 2025-03-09 | Origin: Hacker News

The content introduces a series of programming puzzles aimed at teaching internationalization. New puzzles will be released from March 7 to March 26, 2025. Users are encouraged to engage in discussions on Discord or Reddit and can sign up for email updates.

Published: 2025-03-09 | Origin: /r/programming

The author shares insights from recent updates to their blog, emphasizing a shift in approach to web development by adopting the concept of "Lots of Little HTML Pages" (LLMS). They argue that instead of building complex, JavaScript-enhanced interactions on a single page, creating separate HTML pages for each interaction simplifies the process and enhances user experience. This method leverages CSS transitions to achieve smooth interactions with far less complexity. Two examples illustrate this shift: while initially planning to use JavaScript for filtering posts on

Published: 2025-03-09 | Origin: /r/programming

The text discusses a tile-laying puzzle solver designed for polyominoes, such as the board game Patchwork. It highlights that this solver is unique as it is easily accessible, user-friendly, efficient, and allows for the addition of custom pieces. It features a Flask-based web UI for simplicity and intuitiveness, converting tiling problems into SAT problems to find solutions. A screenshot is mentioned, showing a solution that successfully covers the entire game board. Feedback from users is valued and taken seriously,

Published: 2025-03-09 | Origin: /r/programming

Calculus is a vital mathematical field that analyzes changes in continuous quantities, impacting various scientific disciplines, including physics, chemistry, engineering, finance, medicine, and meteorology. It distinguishes between discrete quantities (countable) and continuous quantities (any value within a range). The core focus of calculus includes determining the instantaneous rate of change of a function at a specific point, typically represented by the derivative. This derivative indicates how steeply a function rises or falls at that point and can be mathematically defined using

Published: 2025-03-09 | Origin: /r/programming

Of course! Please provide the content you'd like me to summarize.

Published: 2025-03-09 | Origin: Hacker News

"It is as if you were on your phone" is a speculative game set in a near future where societal pressures compel individuals to constantly engage with their phones while simultaneously discouraging it. Players mimic being on their phones, allowing them to "pass as human" without actually engaging in the exhausting activities typically associated with phone use, like liking photos or swiping through profiles. The game offers a form of freedom through this pretense. It was developed using p5 and Hammer.js for touch gestures and is