A Map of Every Lighthouse on the Planet
A comprehensive map displays every charted lighthouse on Earth, showing their real lighting cycles. It covers locations from Scotland and Brittany to Japan and Norway. (mapped.earth)
Other
Glashütte Trash Clock – A 30-minute pendulum clock made from trash
Niklas Roy created the Glashütte Trash Clock, a functioning 30-minute pendulum clock made from trash found in Glashütte, Saxony. He also invented a new time scale called GTC, which combines features of GMT and UTC, using the clock as its reference. (niklasroy.com)
The daily digest
Today's best Hacker News stories, summarized and screenshotted, one email a day.
Incentives in Academic Research
Academic research's incentives have shifted away from scientific integrity and truth-seeking towards personal recognition and publications. This has led to issues like dishonesty, neglect of correcting known errors, and a decline in the training of ethical researchers. (msoos.org)
In the wake of closure, a digital archive of animated materials appears online
Following the closure of Tippett Studios, a digital archive of its animated materials has been uploaded online for free browsing. The archive includes test clips, interviews, and extensive digital files preserved from the studio's decades of work in effects and animation. (filmstories.co.uk)
How effective altruism conquered the world (and might yet end it)
Effective altruism is a movement that promotes using evidence and reason to maximize the positive impact of charitable actions. It has gained widespread influence, shaping global philanthropy and policy debates. (economist.com)
Former SR-71 engineer talks NASA's Blackbird revival program
NASA's plan to revive the Blackbird involves aircraft #844, with insights from a former SR-71 engineer on its current status and what is needed to fly it again. The discussion also covers potential future applications for the aircraft within NASA's missions. (twz.com)
The Heilbronn Problem
The Heilbronn problem explores optimal arrangements of points within regions like squares, triangles, and convex shapes to maximize the smallest triangle area. Recent records show continuous improvements in configurations with up to 35 points, with detailed configurations and proofs available online. (math.tejstead.com)
Hole Punch: Sling your spaceship around gravitational fields
Hole Punch is a game where players navigate a spaceship around gravitational fields without using fuel. The game involves rotating the device to control movement and progress through sectors. (notoriousbfg.com)
Magic Switch: Share Apple Magic keyboard/track-pad/mouse between two Macs
Magic Switch is a free, open-source macOS app that allows users to share an Apple Magic Keyboard, Trackpad, or Mouse between two Macs without needing to re-pair devices or use an Apple ID. It simplifies switching peripherals, enhancing productivity and convenience for Mac users. (joshua.hu)
Celebrating the 100th birthday of the kidney donated to him as a teenager
A Webster man is celebrating the 100th birthday of the kidney his mother donated to him as a teenager in 1978. The transplant has lasted 48 years, making it the longest surviving kidney transplant. (whec.com)
Ncdu: An Updated Fork
Ncdu is an updated fork of a disk usage analyzer tool, with recent activity showing 597 commits. It includes source code, documentation, and licensing files on GitHub. (github.com)
Reasons I didn't become an EMT, ranked
A software engineer explains why he delayed becoming an EMT, citing concerns about time commitment, culture, and fitting in with others. He ultimately got certified but clarified he has no desire to work on an ambulance. (ben.stolovitz.com)
Automating my 35mm film scanning pipeline
Automating the 35mm film scanning process aimed to cut down on the four-hour manual workflow, involving handling negatives and editing images. Attempting to use Claude to control the scanner automatically led to hardware issues requiring manual repair. (shannadige.com)
So You Think You Could Be an Electrician?
Trades jobs like electricians can offer high salaries and job security, but they also come with physical demands and uncertain rewards. College degrees still generally lead to higher lifetime earnings despite the popularity of trade careers as an alternative. (asteriskmag.com)
FTL: A new operating system for clouds
FTL is a new userspace-based operating system designed for cloud environments, enabling easy feature addition, debugging, and upgrades as if writing applications. It isolates containers with lightweight hardware-based security, supports Linux binaries, and aims to combine the benefits of microkernels and monolithic kernels for secure, high-performance cloud computing. (ftl-os.org)
We're working on a new RuneScape MMO
RuneScape is developing a new MMORPG called RS4, built in Unreal Engine and set in the world of Gielinor. The game will be an additional experience alongside existing RuneScape titles, starting in the Ashenfall region and expanding over time. (play.runescape.com)
![Math's pedagogical curse – Grant Sanderson [video]](https://hntoday.pixelshot.io/screenshots/20261003/eb83fea507144ca1_tn.jpeg)
Math's pedagogical curse – Grant Sanderson [video]
Grant Sanderson discusses the challenges of teaching mathematics effectively and the misconceptions that hinder learning. He emphasizes the importance of clear explanations and intuitive understanding in math education. (youtube.com)
gpuvis: GPU Trace Visualizer
gpuvis is a GPU trace visualizer available on GitHub that helps analyze GPU performance. It is a tool designed for developers to better understand GPU activity and optimize graphics processing. (github.com)
Woking Electrical Control Room (2016)
The Woking Electrical Control Room, built in 1936, was part of the Southern Rail network and controlled electricity flow to prevent railway downtime. It operated until 1997 and is now a Grade II listed site, occasionally open to the public during heritage events. (darbiansphotography.com)
I Quit OpenAI Because Its Culture Is Broken
Several OpenAI employees have resigned due to concerns over the company's culture. The resignations highlight internal issues related to safety and organizational environment. (theatlantic.com)
Vinix is an effort to write a modern, fast, and useful operating system
Vinix is an effort to develop a modern, fast, and useful operating system. It aims to improve performance and usability for users and developers. (github.com)
Show HN: Our space game has a built-in RISC-V emulator that runs Linux
The game Against All Odds features a built-in RISC-V emulator running Linux, allowing in-game programs and small games to run on virtual machines. It is currently in early access, offering sandbox terraforming, exploration, and creative building on a distant planet. (againstallodds.games)
Does Costco Cause Cancer?
A study linked living near Costco to over 2.2 million cancer deaths from 2000 to 2018, but critics say the methodology is flawed and the results are misleading. The authors used a similar approach to studies that falsely linked other locations to cancer, highlighting issues with their analysis. (marginalrevolution.com)
Florida weighs ditching property taxes and sticking Canadians with the bill
Florida voters are considering removing residential property taxes, which could lead to a loss of revenue for local services. To compensate, the state's governor suggests increasing taxes on Canadian property owners in Florida. (cbc.ca)
Holes (1996-2025)
Holes are a complex ontological and epistemological subject, with debates over whether they are real entities or mere fictions. Despite their elusive nature, humans readily perceive and conceptually distinguish holes, making them significant in everyday cognition. (plato.stanford.edu)
Rejection Sensitivity in Gifted and Twice-Exceptional Children
Rejection sensitivity is an intense reaction to perceived rejection or criticism, especially common in gifted and twice-exceptional children. It is linked to neurological wiring that heightens emotional responses, particularly in children with ADHD or autism, but is not a sign of weak character or bad parenting. (teachyourkids.substack.com)
Fast Blur with Animated Radius
A new method called SMOL GAUSSIAN improves fast blurring by combining downsampling, separable Gaussian blur, and upsampling, making large-radius blurs more efficient. It allows smooth animated changes in blur radius and handles different horizontal and vertical blurs effectively. (aras-p.info)
Watson Jr. memo about CDC 6600 (1963)
Watson Jr. criticized IBM's loss of industry leadership to Control Data Corporation in a 1963 memo, highlighting CDC's competitive edge despite its small size. The memo, known as 'The Janitor Memo,' reflects concerns over IBM's declining dominance in supercomputing. (computerhistory.org)
The first packet sent via RFC1149 avian carrier is up for auction at Christie's
A physical packet of an IP datagram sent via carrier pigeon during a 2001 experiment based on RFC 1149 is up for auction at Christie's. RFC 1149, created as an April Fools' joke in 1990, describes transmitting internet packets by pigeons and has become a notable piece of internet folklore. (onlineonly.christies.com)
![ADHD, autism or complex trauma? [pdf]](https://hntoday.pixelshot.io/screenshots/20261003/119c9ab9a4f2477b_tn.jpeg)
ADHD, autism or complex trauma? [pdf]
ADHD, autism, and complex trauma are conditions with overlapping symptoms that complicate accurate diagnosis. The paper emphasizes the need for thorough assessment to distinguish these conditions effectively. (cambridge.org)
Our Project Suncatcher prototype satellite is in orbit
Google's Project Suncatcher prototype satellite is now in orbit, marking a milestone in their space initiatives. The satellite aims to enhance climate monitoring and environmental data collection. (blog.google)
Show HN: Audionaut – an open-source cross-platform multitrack audio editor
Audionaut is an open-source, cross-platform multitrack audio editor available on GitHub. It aims to provide a versatile tool for audio editing enthusiasts and professionals. (github.com)