hackernews

1. 555 Timer Circuits Total comment counts : 21 Summary The article discusses the 555 timer, an integrated circuit that is versatile for creating various electronic circuits. It aims to explain how the 555 timer functions and provides examples of complete circuits that can be built using it. Top 1 Comment Summary The article discusses the evolution of electronics over the past 25 years, highlighting the decline of the 555 integrated circuit (IC), once a popular and versatile component....

1. New Mersenne Prime discovered (probably) Total comment counts : 19 Summary On October 12, 2024, a GIMPS computer reported a successful Fermat probable prime test, marking the potential discovery of a new Mersenne prime, the first in nearly six years, pending further verification through Lucas-Lehmer tests. GIMPS recently released version 30.19 of its software, improving the speed of certain computational stages. Significant updates, including the introduction of PRP proofs that allow for verification with minimal additional work, were highlighted, potentially increasing GIMPS’ efficiency moving forward....

1. Secret 3D scans in the French Supreme Court Total comment counts : 30 Summary The article discusses a seven-year campaign advocating for public access to 3D scans of collections in French national museums, beginning with the Rodin Museum in Paris. The author highlights a conflict with the museum and the French Ministry of Culture, which are accused of violating freedom of information laws to withhold these scans from the public....

1. Amazon reveals first color Kindle, new Kindle Scribe, and more Total comment counts : 86 Summary The article is a brief overview by Amazon staff about making the most of a newly purchased Kindle Paperwhite. It highlights various features such as accessing library books, displaying book covers as screensavers, and providing a safe digital environment for kids to explore shows, books, podcasts, and games. Additionally, it mentions the introduction of the all-new Kindle family, including the first color Kindle....

1. Show HN: Graphite, a Blender-inspired 2D procedural design Rust app Total comment counts : 42 Summary Graphite is an open source graphics engine currently in alpha, designed for both vector and raster graphics editing. It features a nondestructive editing workflow, utilizing layer-based and node-based techniques. The project aims to evolve into a comprehensive graphics tool, resembling a game engine rather than traditional software, allowing users to benefit from a streamlined editing experience across various design tasks....

1. World conker champion found with steel chestnut, cleared of cheating Total comment counts : 63 Summary David Jakins, also known as “King Conker,” won the World Conker Championships for the first time at age 82 after competing since 1977. However, cheating allegations arose when a metal conker was discovered in his pocket following his victory. Jakins, who has been the competition’s top judge, denied using the metal conker and claimed it was for humor....

1. Huly – Open-source project management platform Total comment counts : 37 Summary The article discusses the Huly platform, an all-in-one project management tool designed to enhance business application development, including CRM systems. It provides various applications such as Chat, Project Management, CRM, HRM, and ATS, and is suitable for teams looking to build on its framework. For those interested in self-hosting Huly, a version called huly-selfhost is available, which simplifies the hosting process using Docker....

1. Starship Flight 5: Launch and booster catch [video] Total comment counts : 119 Summary error Top 1 Comment Summary The article praises the engineering team’s achievements at SpaceX, particularly highlighting the impressive ‘chopsticks catch’ of the booster, although it raises concerns about the associated risks and suggests the need for better fire suppression systems. Observations include the heatshield’s performance and unexpected asymmetric heating on the flaps, which indicates they are nearing workable solutions....

1. AMD’s Turin: 5th Gen EPYC Launched Total comment counts : 16 Summary The article discusses hands-on experiences with the AMD EPYC 9575F processor, focusing specifically on its memory subsystem enhancements. It highlights the impressive memory bandwidth capabilities of the 9575F—around 52 GB/s for reads and 48 GB/s for writes—compared to desktop counterparts, largely due to its dual GMI links to the I/O die. The processor supports up to 12 channels of DDR5 memory at varying speeds, commonly up to 6000 MT/s in most systems....

1. A Lisp compiler to RISC-V written in Lisp Total comment counts : 12 Summary The article discusses a simple experimental Lisp compiler written in uLisp that compiles Lisp functions into RISC-V machine code. It can be run on RISC-V cores like those in the Raspberry Pi Pico 2, building on an earlier project that compiled Lisp to ARM. The compiler is based on the structured nature of Lisp, removing the need for separate tokenizing or parsing, and is compatible with Common Lisp for displaying generated code, albeit not for execution....