TL;DR summary of stories on the internet
The article delves into calculations revolving around Voyager 1’s transmission capabilities, focusing on crucial factors such as frequency, antenna size, and power. Surprisingly, despite Voyager’s impressive setup, the amount of photons actually reaching Earth is quite minimal, translating to merely 1500 photons per bit. The discussion extends to explore the Shannon limit and the energy […]
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Thread Local Storage (TLS) implementation requires collaboration from compiler, linker, dynamic linker, kernel, and language runtime. Ulrich Drepper’s work on ELF Handling For Thread-Local Storage in Linux is explored, with a focus on x86-64 architecture. The mysterious behavior of implicit TLS in C code is dissected using assembly, revealing the unusual use of segment register […]
In this post, the author discusses the process of upgrading their Chumby 8 to run a modern Linux kernel and focusing on enabling the real-time clock (RTC). Despite assumptions about using the PXA168’s internal RTC being incorrect, the Chumby 8 utilizes the STM32F101 cryptoprocessor to manage date and time. By understanding the boot scripts and […]
This post from the Wayland Wayfinders series discusses merging systemd and foot to enhance configuration updates and reduce memory consumption in sway, paired with persistent tmux states. The author explores custom systemd targets to address sway’s shortcomings in managing long-running processes like foot server. Detailed configurations for scratchpads and terminals are provided, highlighting the challenges […]
HN-text is a user-friendly Hacker News terminal client designed for easy navigation and distraction-free reading. Using arrow keys or hjkl, users can effortlessly move through the front page, comments, and article text. The client provides a fast and responsive way to access Hacker News content in a simple, readable format. Unique keymaps like using the […]
The author delves into the intricacies of the fast inverse square root algorithm popularized by John Carmack in Quake 3, exploring the clever manipulation and interpretation of float bit patterns to approximate $frac{1}{sqrt{x}}$. This algorithm was essential in the late ’90s for computing lighting and 3D vector calculations due to slow CPU processes. The author […]
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In a world overflowing with information, our brains are suffering from “intellectual obesity,” a term coined to describe the overwhelming consumption of useless information that clutters our minds. Similar to the way we evolved to crave sugar as a rare energy source, our brains are now addicted to the constant stream of low-quality “junk info” […]
Grid Garden, created by Codepip, offers a fun and interactive way to learn CSS grid with its unique gardening theme. The website is available in multiple languages, making it accessible to a wider audience. Users can practice their CSS grid skills by completing various levels that challenge them to place plants in the correct grid […]
Summary: This web game features simple controls and various features like enemies, weapons, textures, music, and dynamic lighting. It includes enemy AI with line of sight checks but no pathfinding. Feedback from experts praises the game for its impressive graphics, music, gameplay, and technical aspects like particle effects and enemy AI. The game is described […]