Precision Clock Mk IV

537 ahlCVA 2025-05-31 15:06:03 UTC mitxela.com GoogleT5 Share 124

The precision clock mk iv is a millisecond precision timepiece. it was designed to be easy to update, but has complication from multiple display modes and button to cycle through them. the hinge is made from laser-cut delrin for maximum strength. if we wanted to do anything more than switching modes, we'd want to patch that directly onto the time side pcb. there are no plans to release ...

I made a chair

344 surprisetalk 2025-05-31 06:24:01 UTC milofultz.com Full Share 137

I made possibly the simplest chair from an instructable I found. Uses one 8-foot 2"x12" and some very basic cuts. It didn't take long, even when the truly incorrect tools of only a circular saw and an oscillating multitool. I sealed up the ends using end cut sealer and called it a day. It works great and honestly I kind of like it better than a lot of my other chairs.

Beware of Fast-Math

317 blobcode 2025-05-31 07:05:57 UTC simonbyrne.github.io Llama Share 221

Enabling the "fast-math" compiler flag can cause problems due to optimizations that break floating point rules, leading to incorrect results. To safely use fast-math, test thoroughly and use it with caution, or consider alternative approaches to achieve performance benefits.

A Lean companion to Analysis I

290 jeremyscanvic 2025-05-31 16:55:37 UTC terrytao.wordpress.com Llama Share 40

Author wrote a textbook "Analysis I" focusing on foundational issues in real analysis. They are now creating a Lean companion to translate the book's content into Lean, allowing students to use proof assistants for exercises.

Ask HN: Anyone making a living from a paid API?

239 meander_water 2025-05-31 14:23:49 UTC news.ycombinator.com Llama Share 169

Solo devs or small teams selling API access pay rent. They solve problems people will pay for, like data analytics or automation tools.

GUIs are built at least 2.5 times

230 mpweiher 2025-05-31 09:20:36 UTC patricia.no Llama Share 133

The user argues that software development should be understood on its own terms, rather than being compared to manufacturing or other industries, and that the goal of software development is to find out what users want, rather than to produce a perfect product. The user believes that this shift in perspective is necessary to move beyond the limitations of Lean Software Development and to ...

Using lots of little tools to aggressively reject the bots

213 archargelod 2025-05-31 08:06:21 UTC lambdacreate.com Llama Share 139

The writer's website was attacked by bots from large corporations like Amazon, Facebook, and OpenAI, causing high traffic and resource usage. The writer used tools like Zabbix, lnav, and goaccess to analyze the issue and implemented a solution using Nginx, Fail2Ban, and a list of blocked user agents to reject the bots.

Oniux: Kernel-level Tor isolation for any Linux app

196 marcodiego 2025-05-31 20:46:50 UTC blog.torproject.org Llama Share 48

oniux is a command-line utility providing Tor network isolation for third-party applications using Linux namespaces. It drops-ships any Linux program into its own network namespace to route it through Tor and strips away potential data leaks.

The Rise of the Japanese Toilet

191 Kaibeezy 2025-05-31 15:03:44 UTC nytimes.com Full Share 373

Please enable JS and disable any ad blocker

How to Store Data on Paper?

185 mofosyne 2025-05-31 07:20:15 UTC monperrus.net Llama Share 73

To store digital data on paper, various encoding methods like character-based, dot-based, and color-based are used, with some achieving up to 100 kilobytes per A4 page. Error correction and robust decoders are essential to mitigate data corruption risks in the printing, transport, and scanning process.

New adaptive optics shows details of our star's atmosphere

182 sohkamyung 2025-05-31 23:08:29 UTC nso.edu Llama Share 32

Scientists developed a new 'coronal adaptive optics' system to remove blur from images of the Sun's corona. This technology has produced the clearest images of the Sun's corona to date.

AI Responses May Include Mistakes

182 userbinator 2025-05-31 05:48:16 UTC os2museum.com Llama Share 203

A user experienced inconsistent results from a Google AI search for an IBM PS/2 model, with the AI providing different and often incorrect information. The AI's hallucinated answers were convincing but lacked accuracy, posing a risk of misleading non-expert users.

Every 5x5 Nonogram

171 eieio 2025-05-31 00:14:27 UTC pixelogic.app Llama Share 82

Every 5x5 Nonogram is a collaborative web game with unique, solvable puzzles. It's created by Joel, who also made Pixelogic - Daily Nonograms with over 6,000 human-crafted puzzles.

CCD co-inventor George E. Smith dies at 95

156 NaOH 2025-05-31 19:56:37 UTC nytimes.com Full Share 18

Please enable JS and disable any ad blocker

Ask HN: How do I learn practical electronic repair?

155 juanse 2025-05-31 06:14:47 UTC news.ycombinator.com Llama Share 98

To learn electronics repair as a hobby, start by learning basic electronics theory through books and YouTube videos, then build simple circuits with a soldering iron and test equipment. Practice repairing broken electronics, starting with simple projects and gradually moving to more complex ones, and watch repair videos to develop debugging and troubleshooting skills.

YOLO-World: Real-Time Open-Vocabulary Object Detection

146 greesil 2025-05-31 20:54:30 UTC arxiv.org Llama Share 51

YOLO-World enhances YOLO with open-vocabulary detection capabilities through vision-language modeling. It achieves high efficiency and accuracy on challenging datasets and downstream tasks.

Sid Meier's Pirates – In-depth (2017)

146 benbreen 2025-05-31 06:43:27 UTC shot97retro.blogspot.com Llama Share 67

The author loves Sid Meier's Pirates! on the Amiga, praising its unique blend of action, adventure, and simulation elements. The game's open-ended design allows players to set their own goals and experience a unique adventure each time.

Gradients Are the New Intervals

145 surprisetalk 2025-05-31 06:25:19 UTC mattkeeter.com Llama Share 67

Researchers compared graphics researchers to magpies, easily distracted by shiny objects, but also found a useful idea in a recent paper on implicit surface rasterization. They explored three evaluation strategies for distance fields: interval arithmetic, single-point sampling, and normalized single-point sampling, each with its own trade-offs and benefits.

Show HN: PunchCard Key Backup

142 ciprian_craciun 2025-05-31 16:09:40 UTC github.com/volution Llama Share 48

The project PCKB allows users to back up 128 bits of information on a physical medium using punched cards. It requires a computer, aluminium sheet, punch tool, drill, and cutter to create a durable backup.

My five-year experiment with UTC

132 adamci 2025-05-31 13:39:58 UTC timestripe.com Llama Share 193

Adam Arutyunov ditched local time for Coordinated Universal Time (UTC) to simplify time management. He found it boosted his productivity and recommends others try it with tools like Timeblocking and Horizons.

Simpler Backoff

127 todsacerdoti 2025-05-31 04:43:14 UTC commaok.xyz Llama Share 45

The code uses a lookup table for exponential backoff with jitter, making it simpler, more readable, and editable. This approach avoids complex calculations and loop behavior issues.

Doge cuts to USAid blamed for 300k deaths – most of them children

125 mnewme 2025-05-31 08:13:37 UTC thetimes.com Llama Share 58

Brooke Nichols created a model to predict the human cost of USAid funding cuts, showing a death every 3 minutes, mostly children. The cuts, led by Elon Musk and the Trump administration, have tripled the expected Aids pandemic death toll by 2030.

The NFS 4 Freezer Spacer In Science Fiction Sets

122 sohkamyung 2025-05-31 23:23:20 UTC kolektiva.social Full Share 15

Attached: 1 image wanna know one of the dirty little secrets of how to make a cool science fiction set? this bad boy right here, the NFS 4 Freezer Spacer. this fucker shows up EVERYWHERE in scifi set design ceilings? check! floors? check! walls? check! tables? check! instant scifi vibe

How Georgists Valued land in the 1900's

121 surprisetalk 2025-05-31 06:23:25 UTC progressandpoverty.substack.com GoogleT5 Share 170

The somers system asks people to set their own values on land. it doesn't account for the single biggest change to cities since the 1900's, says john sutter jr. he says the system circumvents most of the traditional appraisal approaches taught today. the authors claim that small towns employing the method were able to establish unit values for their entire municipality in a single meeting. ...

Web dev is still fun if you want it to be

121 jacques_chester 2025-05-31 06:23:24 UTC github.com/jchester Llama Share 111

The author created a simple ranking system called Best of Best of the Worst using Sinatra, Sequel, and SQLite. They prioritized simplicity and ease of use over modern web development complexities.

A Complete Guide to Meta Prompting

110 saikatsg 2025-05-31 09:05:53 UTC prompthub.us GoogleT5 Share 23

Meta prompting is a prompt engineering method, so it falls under the prompt broader umbrella. textgrad draws inspiration from dspy and builds upon it to make it even better. prompt generators are an easy way to leverage meta-prompting with minimal work. you start with an initial prompt and input/output pairs, and explore high-reward paths. the final few-shot prompt includes examples approved ...

Implementing a Forth

109 todsacerdoti 2025-05-31 07:38:30 UTC ratfactor.com Llama Share 42

The author shares their experience with creating Forth implementations, including a port of JONESFORTH and a minimal Forth called PlanckForth. They discuss the challenge of implementing a Forth with a small core.

Show HN: AI Peer Reviewer – Multiagent system for scientific manuscript analysis

108 rjakob 2025-05-31 13:51:16 UTC github.com/robertjakob Llama Share 95

A cloud version of the AI Peer Reviewer is available for free testing at https://www.rigorous.company/, providing a comprehensive PDF report within 1-2 days. It offers tools for transparent, cheaper, and faster scientific publishing with rigorous peer and AI review.

The Trackers and SDKs in ChatGPT, Claude, Grok and Perplexity

107 ddxv 2025-05-31 08:23:51 UTC jamesoclaire.com Llama Share 15

The user analyzed 4 Android chat apps using AppGoblin data, finding various 3rd party SDKs and API calls, including Google, statsig.com, segment.com, and RevenueCat. Perplexity had the most interesting tools, including MapBox and Shopify, while OpenAI used livekit.io and Grok.

Estimating Logarithms

102 surprisetalk 2025-05-31 06:22:50 UTC obrhubr.org Llama Share 25

The user discovered a method to estimate the logarithm of any number base 10 by approximating it as the number of digits minus one, and then used properties of logarithms to calculate it with arbitrary precision. They used scientific notation and repeated exponentiation to gain precision, and wrote a Python script to automate the process, which can calculate logarithms up to arbitrary precision.

Why we still can't stop plagiarism in undergraduate computer science (2018)

100 wonger_ 2025-05-31 19:52:49 UTC kevinchen.co Llama Share 235

Plagiarism is a widespread issue in computer science courses, with many students copying and pasting code, but instructors often avoid confronting it due to lack of support and fear of backlash. To combat plagiarism, instructors need to make it costly for students, provide consistent policies, and use plagiarism detection software efficiently.

Using Ed(1) as My Static Site Generator

95 BoingBoomTschak 2025-05-31 13:55:26 UTC aartaka.me Llama Share 39

Artyom Bologov is re-evaluating tech choices due to bipolar spikes, testing ed-family editors for parsing Lisp and scripting. He uses ed as a site generator with scripts for preprocessing and conversion.

Cerebras achieves 2,500T/s on Llama 4 Maverick (400B)

93 ByteAtATime 2025-05-31 03:49:22 UTC cerebras.ai Llama Share 92

Cerebras outperformed Nvidia's Blackwell GPUs with 2,522 TPS/user on Meta's Llama 4 Maverick model. This sets a world record for LLM inference speed and makes Cerebras the optimal solution for Llama 4 in any deployment scenario.

Investment Risk Is Highest for Nuclear Power Plants, Lowest for Solar

81 doener 2025-05-31 11:00:44 UTC bu.edu Llama Share 163

A new study finds that over 60% of energy infrastructure projects worldwide run over budget, with nuclear power plants being the worst offenders. Low-carbon sources like solar and wind energy have lower construction risks and costs.

A High-Level View of TLA+

80 blobcode 2025-05-31 07:26:30 UTC lamport.azurewebsites.net Llama Share 19

TLA+ is a language for modeling software and hardware above the code level, using mathematics to describe system behaviors. It helps engineers catch design errors and simplify complex systems by writing precise high-level models.

Writing your own C++ standard library part 2

78 signa11 2025-05-31 06:46:41 UTC nibblestew.blogspot.com Llama Share 68

The author wrote a self-implemented C++ standard library for fun, which was linked by Hackernews and Reddit, but comments focused on its scope and naming conventions rather than the content. The library simplifies container implementation by requiring types to be noexcept-movable.

Why Writing by Hand Is Better for Memory and Learning

77 andsoitis 2025-05-31 02:20:57 UTC scientificamerican.com Llama Share 42

Research suggests handwriting is better for learning than typing due to increased brain activity and engagement. Handwriting activates multiple brain regions, improving memory and learning, especially in young children.

The Book of Secret Knowledge

73 AnotherDev415 2025-05-31 08:25:41 UTC github.com/trimstray GoogleT5 Share 3

Fzf - is a general-purpose command-line fuzzy finder. h2t is to help sysadmins to hardening their websites. openssl is an open source toolkit for the tls and ssl protocols. panopticlick – is your browser safe against tracking? webhint — linting tool that will help you with your site’s accessibility, speed, security, and more.

Show HN: Fontofweb – Discover Fonts Used on a Website or Websites Using Font(s)

70 sim04ful 2025-05-31 14:20:58 UTC fontofweb.com Llama Share 23

The GCU Subtle Knife drifted through a dying star system with its Mind preoccupied by 12-dimensional chess. A drone suggested spelling 'Oops' in plasma across the system.

Sguaba: Hard-to-misuse rigid body transforms for engineers

68 lukastyrychtr 2025-05-31 20:27:09 UTC blog.helsing.ai Llama Share 23

Sguaba is a Rust crate that strongly types coordinates and vectors with their respective coordinate system, preventing accidental mixing of systems. It provides conversions between different coordinate systems, including FRD, NED, ECEF, and WGS84.

In POSIX, you can theoretically use inode zero

68 mfrw 2025-05-31 08:57:12 UTC utcc.utoronto.ca Llama Share 36

The user is blocked due to using an old browser version or being identified as a suspicious crawler. They can contact the author to resolve the issue or use archive.org for a better behaved archival crawler.

Texas cop searched license plate cameras nationwide for woman who got abortion

65 mdp2021 2025-05-31 08:22:39 UTC eff.org Llama Share 9

A Texas sheriff's office used data from 83,000 ALPR cameras to track a woman suspected of self-managed abortion. This case highlights the dangers of unchecked mass surveillance infrastructure targeting reproductive healthcare.

Learn touch typing – it's worth it

64 absoluteunit1 2025-05-31 03:15:19 UTC typequicker.com Llama Share 101

The author learned touch typing after struggling with computer science and initially working as a laborer. They created TypeQuicker to help others improve their typing skills.

Plutonium Powered Pacemaker (From 1974)

63 BafS 2025-05-31 20:51:34 UTC orau.org Llama Share 28

Pacemakers use thermoelectric batteries containing plutonium-238 to stimulate irregular heartbeats. The pacemakers are designed to withstand death and cremation, with radiation exposure estimated at 0.1 rem per year to the patient.

Cuss: Map of profane words to a rating of sureness

61 tosh 2025-05-31 10:18:40 UTC github.com/words Llama Share 64

This package contains lists of profane words in multiple languages for research purposes, not for profanity filtering. It includes 1776 English words and 173 Italian words with ratings from 0 to 2.

The Two Ideals of Fields

58 susam 2025-05-31 13:59:52 UTC susam.net Llama Share 49

A commutative ring with distinct identities and only trivial ideals is a field. Every field has only trivial ideals.

Magic Ink: Information Software and the Graphical Interface

51 blobcode 2025-05-31 07:14:00 UTC worrydream.com GoogleT5 Share 9

Bret dream: software is not a new and mysterious medium, but fusion of two old ones. he says primary design challenge is to provide affordances that make mechanical operations available, understandable, and comfortable. dreams: many types of context can be naturally expressed in some informative graphical domain, dream says - if you're unfamiliar with widget, watch demo movie based on widget ...

Intelligent Agent Technology: Open Sesame! (1993)

50 msephton 2025-05-31 19:09:09 UTC blog.gingerbeardman.com Llama Share 6

User tried to find a long-forgotten app using Google, but succeeded with Gemini and ChatGPT. The app was Open Sesame!, a 1993 Macintosh software assistant that learned users' repetitive tasks.

Show HN: Open-source P2P file transfer

49 goodpanda 2025-05-31 23:09:56 UTC github.com/nihaocami Full Share 28

Berb is a lightweight, privacy-first web app for sending files directly from one device to another using WebRTC. No servers. No uploads. Just you, your file, and the person you want to send it to. 🔒 Your files never touch a server — Berb connects users directly using WebRTC Data Channels for secure, fast transfers.

Bohemians at the Gate?

45 surprisetalk 2025-05-31 13:41:44 UTC inferencemagazine.substack.com GoogleT5 Share 60

The discourse on how we might apply copyright law to ai systems has, unfortunately, been collapsed into a culture war framing. not having domestic tech companies makes it harder, to steer those technologies towards your values in future, writes sam taylor-mcgraw - "to pay for the things you value" opting in doesn’t “get” anything for creatives, it just stunts the emergence of internationally-com

Atlas: Learning to Optimally Memorize the Context at Test Time

43 og_kalu 2025-05-31 14:13:00 UTC arxiv.org Llama Share 4

Researchers developed ATLAS, a long-term memory module, to overcome limitations of Transformers and recent recurrent models in tasks requiring long context understanding. ATLAS surpasses Transformers and recent models in language modeling, reasoning, and long-context tasks, achieving +80% accuracy in 10M context length.

Google Duo will be replaced by Google Meet in Sept 2025

38 phantomathkg 2025-05-31 07:10:38 UTC 9to5google.com Llama Share 47

Google Duo's legacy features will disappear in September 2025, replaced by Google Meet's features. Users can export their call history and video messages before they are removed.

Hip: C++ Heterogeneous-Compute Interface for Portability

36 doener 2025-05-31 07:37:21 UTC github.com/rocm Llama Share 12

HIP is a C++ Runtime API and Kernel Language for AMD and NVIDIA GPUs from single source code. It provides portability and performance similar to CUDA.

Show HN: I built an AI agent that turns ROS 2's turtlesim into a digital artist

30 ponta17 2025-05-31 10:17:17 UTC github.com/yutarop Llama Share 9

The user wants the turtlesim_agent to draw a rainbow with 7 semi-circular arcs in traditional colors, each with a different radius and offset. The arcs should be drawn with a pen width of 5 and a radius ranging from 2.0 cm to 2.7 cm.

What's up with this "Please add me on WhatsApp" robocall spam?

24 edent 2025-05-31 11:55:29 UTC shkspr.mobi Llama Share 11

The scammer calls with a robotic voice, asking to connect on WhatsApp with vague offers, hoping to attract a few victims out of thousands of calls. It's a numbers game, relying on some people to engage despite the lack of information.

Why incels take the "Blackpill"–and why we should care

24 nreece 2025-05-31 04:19:11 UTC arstechnica.com Llama Share 42

Incels, a fringe group known for extreme rhetoric, are increasingly using their ideology as an excuse for not working or studying, often embracing a nihilistic attitude. A study found that most incels identify with the Blackpill ideology, which rejects self-improvement and views dating and social success as determined by looks and genetics.

Acclimation of Osmoregulatory Function in Salmon

23 mooreds 2025-05-31 14:34:09 UTC unm.edu Llama Share 3

Salmon face osmoregulatory challenges when migrating between freshwater and saltwater due to differences in body fluid concentration and composition. They adapt by drinking, altering kidney function, and using a special enzyme to transport ions against concentration gradients.

The Guide to Cloudflare's Durable Objects

21 mxschumacher 2025-05-31 12:00:34 UTC flaredup.substack.com GoogleT5 Share 2

Durable objects allow you to build applications in completely different and novel ways. they can horizontally scale your application with zero effort if you want - and you can create as many as you need on-demand. there’s everything from rpc, to websockets, and more to cover – there are even agents built on top of them. i really hope we see more examples of these used in the wild. let me know in a

'Wind theft': The mysterious effect plaguing wind farms

20 JumpCrisscross 2025-05-31 12:21:54 UTC bbc.com Llama Share 20

Wind farms can "steal" each other's wind due to the wake effect, reducing energy output by up to 10%. This issue is growing as offshore wind farms expand and become more crowded.

Classicide

18 stein1946 2025-05-31 10:52:32 UTC en.wikipedia.org Llama Share 16

Michael Mann proposed the concept of classicide to describe the deliberate destruction of a social class through persecution and violence. Classicide is considered a form of premeditated mass killing, narrower than genocide, targeting a population defined by its social status.

Next.js: The "Versatile" React Framework That Can't Handle Dynamic Routes

16 batchfy 2025-05-31 03:53:45 UTC github.com/vercel Full Share 19

NoteJump to the latest answer from the Next.js team: #64660 (comment) Verify canary release I verified that the issue exists in the latest Next.js canary release Provide environment information Ope...

AI didn't kill Stack Overflow

15 taubek 2025-05-31 12:36:13 UTC infoworld.com Llama Share 10

Stack Overflow's decline mirrors the rise of ChatGPT, but AI was the last straw in a site that had already lost its human element. The site's reputation system, once a strength, became oppressive and stifled community interaction.

Rsync's defaults are not always enough

13 ingve 2025-05-31 22:15:41 UTC rachelbythebay.com Full Share 0

For Some Recent Graduates, the A.I. Job Apocalypse May Already Be Here

13 demirbey05 2025-05-31 20:05:32 UTC nytimes.com Full Share 23

Please enable JS and disable any ad blocker