I am using AI to drop hats outside my window onto New Yorkers

https://dropofahat.zone/static/dropofahat/hat/ai3.2089d32ec65c.JPG
The creator of DropofaHat Zone, a window-based store, shares their journey of developing an AI-powered hat-dropping system using a Raspberry Pi, Adafruit stepper motor, and Roboflow. The system uses object detection to identify pedestrians under the window and drops a hat on their head within a 5-minute time slot.

The tiny chip that powers Montreal subway tickets

https://static.righto.com/images/mifare-ultralight--images/die-raw-w500.jpg
The MIFARE Ultralight EV1 chip used in Montreal's subway tickets is a low-cost, disposable NFC chip that uses a simple protocol to communicate with the reader and store data in its EEPROM. The chip is manufactured using an older 180nm process and is designed to be inexpensive, with a per-chip price of nine cents, making it suitable for disposable use.

Llama.ttf: A font which is also an LLM

Llama.ttf is a font file that also contains a large language model and inference engine, allowing users to run text generation locally in Harfbuzz-based applications. By using the font, users can generate text without relying on vendor implementations, and even chat with their font.

Ruby: A great language for shell scripts

https://upload.wikimedia.org/wikipedia/commons/7/73/Ruby_logo.svg
Ruby is a rich and complete language that can be used for writing shell scripts, offering features like easy command execution, type safety, and functional programming operations. It is a suitable replacement for complex shell scripts, offering a more complete and easier-to-use alternative to Bash, Python, and other languages.

Start all of your commands with a comma (2009)

The user created a ~/bin/ directory and added it to their PATH, but encountered issues with command name collisions due to Debian's large number of available commands. They solved this by prefixing their custom command names with a comma, making them distinct from system commands and easily browsable using tab-completion.

I've stopped using box plots (2021)

https://i0.wp.com/nightingaledvs.com/wp-content/uploads/2021/11/box-plot-vs-histogram-w-callouts.png?resize=512%2C270&ssl=1
The author argues that box plots are poorly designed and unnecessarily hard to learn, leading to misinterpretation and failure to communicate distribution-based insights to audiences. Alternative chart types such as strip plots and distribution heatmaps are easier to grasp and can communicate the same insights without requiring audiences to understand complex concepts like quartiles.

LINQPad – The .NET Programmer's Playground

https://www.linqpad.net/images/thebigdump.png?6
LINQPad is a query tool that allows users to query various databases and data sources without installing client software, featuring caching, performance benefits, and advanced features like charting and debugging. It also includes a range of tools for tasks like benchmarking, regular expression evaluation, and Excel file generation, as well as a comprehensive tutorial and reference guide.

Detecting hallucinations in large language models using semantic entropy

https://media.springernature.com/w215h120/springer-static/image/art%3A10.1038%2Fs41562-024-01882-z/MediaObjects/41562_2024_1882_Fig1_HTML.png
The authors propose a method called semantic entropy to detect confabulations in language models, which are arbitrary and incorrect generations. They demonstrate that semantic entropy can be used to predict model accuracy and improve it by refusing to answer questions when the model is uncertain, and it can also be used to give users a way to know when model generations are probably unreliable.

Liquid Layers

Timeliness without datagrams using QUIC

https://quic.video/blog/never-use-datagrams/glitch.gif
The user discusses the importance of timeliness in live video protocols and how UDP datagrams can achieve this, but warns against using UDP directly and instead recommends using QUIC streams with congestion control and prioritization. The user also criticizes the use of datagrams in some protocols and encourages developers to use QUIC streams instead, citing the benefits of reliability and flexibility.

Porting Python to a $3 smartwatch [video]

Traffic engineers build roads relying on outdated research, faulty data

https://images.theconversation.com/files/600881/original/file-20240614-21-qgfh6a.jpg?ixlib=rb-4.1.0&rect=37%2C0%2C4955%2C3637&q=20&auto=format&w=320&fit=clip&dpr=2&usm=12&cs=strip
The US has seen a significant increase in pedestrian and bicyclist deaths, with over 1,000 bicyclists and 7,500 pedestrians killed in 2022, partly due to the size and design of vehicles. The current approach to road safety, which blames road user error for most crashes, is flawed and ignores the role of vehicle design and infrastructure in contributing to these deaths.

The economics of the Birkin handbag

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B-Trees Require Fewer Comparisons Than Balanced Binary Search Trees

B-trees have a lower bound of log2 n comparisons for search operations, which is achievable with a perfectly balanced tree. For larger values of k, B-trees become more balanced and require fewer comparisons than AVL trees, with the number of comparisons decreasing as k increases.

Remembering the LAN (2020)

https://tailscale.com/api/og-image?title=Remembering%20the%C2%A0LAN
The author reflects on their childhood programming experiences on a local area network (LAN) in the 1990s, where they learned to program and build software in a safe and carefree environment. They propose rebuilding LAN-like experiences using modern technology, such as mesh networks and VPNs, to create a secure and enjoyable programming environment that combines the best of the past with the ...

Words you can spell with a calculator (2005)

The input contains a list of words from the /usr/share/dict/words file, filtered by a regular expression pattern. The words are mostly English words, with some proper nouns and abbreviations, and are used to test the filtering pattern.

Deriving Dependently-Typed OOP from First Principles

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
The expression problem highlights the difficulty of extending types with both new producers and consumers, and dependently-typed programming typically follows a functional model. This paper explores dependently-typed object-oriented programming by deriving it from first principles using duality, providing a dependently typed calculus with dual language fragments and preserving transformations.

Traffic noise hurts children's brains

https://ichef.bbci.co.uk/images/ic/480xn/p0j5jzfv.jpg.webp
Noise pollution is a growing global problem that affects children's health and learning, with cities like Barcelona introducing measures to reduce noise levels and improve air quality. Cities are implementing superblocks, which separate schools from busy roads and add green spaces, to reduce noise and air pollution, and potentially improve children's mental health and well-being.

Singapore doubles down on lab-grown meat as Silicon Valley backs off

https://149346090.v2.pressablecdn.com/wp-content/uploads/2024/06/2024-A0075-Amarasinghe-768x432.jpg
Eat Just's cultivated chicken, Good Meat 3, is now available at Huber's Butchery in Singapore, marking the first time cultivated meat can be bought in a store worldwide. The launch is a milestone for the industry, which has struggled to gain traction due to high production costs and lack of investor interest, but Singapore's regulatory environment and innovation community are helping to drive progress.

Of Psion and Symbian

https://substackcdn.com/image/fetch/w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24408622-e07e-44d6-bbfa-7c4aa8e6cd03_1400x1964.jpeg
Psion, a British company, was a pioneer in the development of handheld computers and operating systems, including the EPOC32 and Symbian OS, which were used in various devices such as the Psion Organiser, Series 3, and Series 5. Despite its innovative products and early success, Psion struggled to adapt to changing market trends and was eventually acquired by Nokia, which continued to develop ...

A railroad simulation using discrete event simulation

https://cdn.hashnode.com/res/hashnode/image/upload/v1715542067487/5b63063b-0cf4-470f-8822-2af30bdac866.gif?auto=format,compress&gif-q=60&format=webm
The article discusses a railroad model simulation using Discrete Event Simulation (DES) in PicoLisp, featuring a track network and trains with schedules and movements determined dynamically. The simulation can be controlled with keyboard input, allowing users to interact with the layout and toggle switches.

US Forest Service proposes protections for old-growth trees, without logging ban

https://opb-opb-prod.cdn.arcpublishing.com/resizer/v2/EC3AQGRSHZHMHJ72FWCF5GO5QQ.jpg?auth=3e19bcf28df786c70b58cfcb096c1911a236cf60661c8c36f09ef7d64963a652&width=150
The Biden administration has proposed a plan to preserve old-growth trees in national forests, but environmental groups say it falls short of an outright ban on logging and leaves too much up to individual forest managers. The proposal aims to prioritize preserving old-growth trees, but critics argue it doesn't address protecting mature trees and allows for logging in some cases, sparking ...

The First Animal Ever Found That Doesn't Need Oxygen to Survive

https://www.sciencealert.com/images/2020-02/processed/parasite-anaerobic_600.jpg
Scientists discovered a jellyfish-like parasite, Henneguya salminicola, that doesn't have a mitochondrial genome and can survive without oxygen, challenging our understanding of life's oxygen dependency. This finding has implications for the search for extraterrestrial life and could help us understand how life adapts to anaerobic environments.

Why not parse `ls` and what to do instead

https://cdn.sstatic.net/Sites/unix/Img/apple-touch-icon@2.png?v=32fb07f7ce26
The conversation revolves around the topic of parsing the output of the "ls" command in shell scripting, with some arguing that it's never a good idea to do so, while others propose that it can be done safely and correctly in certain cases. The discussion highlights the importance of considering edge cases and the potential for errors when parsing "ls" output, and suggests that it's often ...

Mitochondrial signal transduction (2022)

Asynchronous Consensus Without Trusted Setup or Public-Key Cryptography

https://eprint.iacr.org/img/iacrlogo_small.png
The paper presents an asynchronous Byzantine consensus protocol that does not rely on a trusted setup or public-key cryptography, using only cryptographic hash functions and achieving post-quantum security. The protocol has efficient communication and runs in expected O(1) rounds, making it practical and more efficient than existing setup-free consensus protocols.

Why your brain is 3 milion more times efficient than GPT-4

This is a long and detailed article about the author's experience with vector databases, specifically comparing and evaluating several popular options. The author starts by explaining the basics of vector databases and how they work, including the concept of embeddings and the importance of dimensionality.

ChatGPT is biased against resumes with credentials that imply a disability

https://uw-s3-cdn.s3.us-west-2.amazonaws.com/wp-content/uploads/sites/6/2024/06/18142155/solen-feyissa-Aj7cDaR6QXs-unsplash-scaled.jpg
Researchers found that ChatGPT, an AI tool, consistently ranked resumes with disability-related honors lower than those without, and its explanations exhibited biased perceptions of disabled people. By customizing the tool with written instructions, the researchers reduced bias for most disabilities, but some biases persisted, highlighting the need for further research and awareness of AI ...

Three ways to think about Go channels

https://www.dolthub.com/blog/static/max-bitmoji-ba2b0b2670048884cd11b7f5ea88bf7b.png
Channels in Go are implemented as queues with lock-protected access, allowing senders and receivers to add and remove items. Understanding channels requires knowledge of the Go runtime, error groups, goroutines, and other concurrency primitives to effectively use them in concurrent code.

TinyLetter shut down by Mailchimp, so I built the letterdrop

https://opengraph.githubassets.com/31b380a24d90d7c4ab30cd621abef9cbbd9370dde1b8ecf19474fc7bf11187f4/i365dev/LetterDrop
The user built LetterDrop, a free and reliable newsletter service using Cloudflare Workers, to avoid recurring issues with free newsletter services shutting down. LetterDrop uses Cloudflare Email Worker to send emails, AWS SES for email sending, and Cloudflare Queues to handle failed emails, with code generated by the GPT-4o model.

Some fundraisers pay >90% of the funds to themselves

https://img.assets-d.propublica.org/v5/images/20240617-Young-527-Scams-95-web.jpg?crop=focalpoint&fit=crop&fm=webp&fp-x=0.5&fp-y=0.5&h=800&q=75&w=800&s=6fcd0d4623dcbebc3cbe6a5ad3754cea
A ProPublica investigation found that a network of political nonprofits, known as 527 groups, have raised over $33 million by claiming to support admirable causes, but have spent little on activities with a political purpose, with most of the money going to fundraisers. The investigation connected Thomas Berkenbush, a former co-manager at Outreach Calling, to the network, which has paid his ...

Y combinator codex (2021)

https://phoe.github.io/img/photo1-min.jpg
The artwork measures 42cm x 2.4m with white margins, created using various tools and materials. It will be sold as a print or auctioned off at the European Lisp Symposium 2021, with proceeds donated to Lisp-related organizations.

The City of London which is not part of London (2016)

https://www.thevintagenews.com/wp-content/uploads/sites/65/2015/05/tgfdxfh3.jpg
London is a city with a rich history, with the original City of London being the oldest part, founded by the Romans in 43 AD, and remaining an independent entity despite changes in the surrounding area. The City of London has its own governing bodies, police force, and mayor, and is often referred to as a unique place with a special history, but is not considered a separate nation.

Netflix's bet on advanced video encoding

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Netflix's senior encoding technology director, Aaron, has spent 13 years optimizing the company's encoding technology to deliver better-looking streams over slower connections, resulting in 50% bandwidth savings for 4K streams. However, with the company's recent foray into livestreaming and cloud gaming, Aaron and her team must start from scratch and disregard much of what they've learned, as ...

I found an 8 years old bug in Xorg

The user found a bug in the X11 compositor picom, which was caused by a misuse of epoll in the X server, allowing a client to close a window while the server was locked, and was only discovered after using eBPF and uprobe to debug the issue. The bug had been present for at least 8 years and was only triggered by a specific combination of events, making it difficult to detect.

Arbitrary shell command evaluation in Org Mode (GNU Emacs)

https://seclists.org/images/oss-sec-img.png
A vulnerability in Emacs Org mode allows arbitrary Elisp code evaluation when opening a specific .org file. A patch has been released to fix the issue, which has been included in Emacs 29.4 and Org 9.7.5.

visionOS thermally throttles based on how much it hears the fans in the mics

https://abs.twimg.com/responsive-web/client-web/icon-ios.77d25eba.png
lolll I found the answer, I was getting fucked by the userexperienced. Apparently it dictates thermal limits based on fan limits, and it sets fan limits based on *how much it hears the fans in the mics* If I blast white noise, fan speeds stay at max + no throttle

OpenEMR: Open-source medical record software

https://www.open-emr.org/img/osi-certified.png
OpenEMR is a feature-rich, community-maintained electronic medical record system with 30+ languages, customizations, and full data ownership. It offers advanced scheduling, automated workflows, and clinical decision rules engine, with support options including volunteer, professional, and vendor assistance.

Review of Linux on Minisforum V3 AMD Ryzen Tablet

https://mudkip.me/images/2024/04/v3-1.jpg
The user purchased the Minisforum V3 AMD Tablet, a portable Linux device with a 14" 2.5K 165Hz touch screen, AMD Ryzen 7 8840U processor, and 32GB DDR5 RAM, and has been using it for two weeks, finding it to be a nearly perfect device with good performance, versatility, and Linux compatibility. The user notes some minor issues, such as the lack of automatic rotation, volume control issues, ...

My weekend project turned into a 3 year journey

https://blog.znote.io/static/b0fa1c6e47c718fd7b778e132fcba66f/828fb/road2.jpg
Anthony created a note-taking app that started as a simple project but grew into a complex endeavor, involving Electron/React, Monaco, and government validation. The app now features code execution, deployment, and automation, but Anthony acknowledges the challenges and complexities he faced as a solo developer.

SquirrelFS: Using the Rust compiler to check file-system crash consistency

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
SquirrelFS is a new file system that ensures crash consistency through Rust's typestate pattern, allowing compile-time enforcement of operations and eliminating the need for separate proofs. It achieves similar or better performance than state-of-the-art file systems like NOVA and WineFS, with compilation taking only tens of seconds.

Elixir Gotchas

The author discusses various "gotchas" in Elixir, including charlists vs. strings, pattern matching, structs, keyword lists, and comparing terms, highlighting potential pitfalls and workarounds. The author also touches on the lack of constants in Elixir and provides alternatives, as well as the importance of being aware of these gotchas to write robust and efficient code.

First we shape our social graph, then it shapes us (2022)

https://substackcdn.com/image/fetch/w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2F01dcb082-a030-4412-a27c-ed8acea8b065_2562x2132.jpeg
The author argues that curating one's cultural environment, or "milieu", is crucial for personal growth and development, as it shapes one's thoughts, behaviors, and values. By deliberately selecting and interacting with certain people, ideas, and influences, individuals can leverage their natural tendency to conform to their environment in order to achieve their goals and become the person ...

Does a cave beneath Pembroke Castle hold key to fate of early Britons?

https://i.guim.co.uk/img/media/5a689fd66ed43e9038584f5dd8900f3a2c4dc777/0_0_4032_3024/master/4032.jpg?width=445&dpr=1&s=none
Scientists have discovered a treasure trove of prehistoric material, including ancient bones and stone tools, in a cave beneath Pembroke Castle, which could provide key information about the settling of Britain in prehistoric times. The site, Wogan Cavern, has been left undisturbed for centuries and offers a unique opportunity to study the transition between Neanderthals and modern humans in Britain.

The manager's unbearable lack of endorphins

The user finds personal satisfaction and a sense of competence from achieving milestones in swimming and programming, but as a manager, they struggle to find similar highs in their work due to the lack of immediate and measurable progress. They suggest seeking satisfaction outside of work through physical activities and occasional coding projects, but still wonder if there's something missing ...

Interface Upgrades in Go (2014)

Go's interfaces allow for a "protocol upgrade" pattern, where a narrower interface can be safely cast to a wider interface, enabling more efficient data copying and adding functionality to existing interfaces. This pattern is used in the Go standard library to optimize data copying and add features to interfaces like http.ResponseWriter, making it possible to serve files efficiently without ...

Coffee: Never Surprise Your Customers

https://caseysoftware.com/wp-content/uploads/2024/04/coffee-cups.png
A local gas station's price increase from $1 to $2 for coffee refills broke the para-social relationship with regular customers, leading to a decline in sales. By fixing the issue and communicating the change clearly, the gas station was able to regain customer trust and increase sales again.

A website where you write a message to the next visitor

The message is intended for the next visitor and requires the current visitor to leave a message first. The system moderates submitted messages, but may not catch all abusive or obscene content.

How to do the jhanas

https://nadia.xyz/assets/img/jhanas/picasso-bull.jpg
The author describes their experience with the jhanas, a series of altered mental states that can be induced through sustained concentration, and shares their method for accessing these states, which involves relaxing the body, focusing on a joyful memory, and allowing the sensation to grow and evolve. The author notes that the jhanas are not the ultimate goal, but rather a means to gain ...

Writing an IR from Scratch and survive to write a post

https://farena.in/assets/images/kunai_ir/acdi.jpg
The author designed and implemented an Intermediate Representation (IR) called MjolnIR for analyzing Dalvik bytecode, which includes a Control-Flow Graph (CFG) representation and various instructions for manipulating registers, memory, and types. The author also implemented graph algorithms, including dominator and post-dominator calculations, immediate dominators, and dominance frontier, to ...

Asian groceries like H Mart and Patel Brothers are reshaping America

https://static01.nyt.com/images/2024/06/22/multimedia/11ASIAN-FOOD-07-qctp/11ASIAN-FOOD-07-qctp-articleLarge.jpg?quality=75&auto=webp&disable=upscale
Shin Ramyun, a Korean instant noodle, was unknown in the US 30 years ago but is now a staple in many stores and online. The growth of Asian immigration led to the opening of small Korean and Indian grocery stores, which have since transformed into larger chains serving diverse communities.

Citizens to End SuperPACs

https://images.squarespace-cdn.com/content/v1/6538947489b6cd135c6679ed/02bf8026-fd3e-45e2-9f35-a13db6d996c1/SuperPACs+logo.png?format=1500w
You may have been told that limiting contributions to SuperPACs is impossible, but the citizens of Maine have found a way forward.

G'mic 3.4.0: Image Processing in Its Prime

https://gmic.eu/gmic340/thumbs/teaser_small.png
G'MIC, an open-source framework for digital image manipulation and processing, has released version 3.4.0, which focuses on stability and long-term support, with new features and filters added, including photo retouching, distortion, degradation, rendering, and artistic effects. The framework has a wide range of applications, from digital art to astrophysics, and has been used by researchers, ...

Fresh water on Earth emerged 500M years earlier than previously thought

https://s30991.pcdn.co/news/wp-content/uploads/2024/06/for-web121.jpg
Fresh water on Earth appeared about four billion years ago, 500 million years earlier than previously thought, according to Curtin-led research. The discovery, made by analyzing ancient crystals, challenges the existing theory that Earth was completely covered by ocean four billion years ago and sheds light on the origins of life on Earth.

What scripting languages come out of the box on Debian 12?

The user suggests adding them on LinkedIn and mentions that Python/Perl being installed by default on Linux simplifies scripting concerns for those who don't work on internet-connected boxes. They highlight the benefits of learning Python as a first programming language, including its transferable skills and underrated points like ease of deployment on Linux systems.

Fedora has been shipping with a broken screen reader for nine years

https://ar.al/images/aral-432.jpg
Fedora, a major Linux distribution, has been shipping with a broken screen reader for nine years, despite major proprietary and semi-proprietary operating systems having functional screen readers. The author, Aral Balkan, criticizes Fedora's handling of the issue and the gaslighting they received from Fedora Marketing Team members, and announces that they will focus on their work on the Small ...

Why Mount Rainier is the US volcano keeping scientists up at night

https://media.cnn.com/api/v1/images/stellar/prod/still-20720628-13470-961000000001-still.jpg?c=16x9&q=w_1280,c_fill
Mount Rainier, a volcano in Washington state, poses a significant threat to surrounding communities due to its potential to produce devastating lahars, which are rapidly moving slurry of water and volcanic rock. Scientists are concerned about the volcano's destructive potential, which could be triggered by a landslide or eruption, and are working to improve lahar detection systems to better ...

Group actions and hashing unordered multisets (2021)

The article discusses the structure of hash functions for unordered sets and multisets, showing that they impose an abelian group structure on the set of hashes, and characterizing the structure of such hash functions using group theory. The authors prove that the group structure is a direct sum of blocks of bits with various power-of-2 moduli, and that the blocks are XOR'ed together at the end.

A supermarket trip may soon look different, thanks to electronic shelf labels

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Walmart is replacing traditional price stickers with electronic shelf labels that can change prices every 10 seconds, allowing for dynamic pricing and increased productivity. The new labels also provide product descriptions and can help retailers maintain consistency between online and in-store pricing, potentially reducing customer frustration.

How Cathode Ray Tubes Work [video]

Richard Stallman, su, and the 'wheel' group (2004)

GNU su does not support the wheel group to prevent a small group of powerful users from maintaining control over others. Richard Stallman, founder of the Free Software Foundation, prioritizes the rights of ordinary users over those of system administrators and rulers.

The World Will Soon Witness "One of the Rarest Space Events of Our Lives"

https://assets.iflscience.com/assets/articleNo/74746/aImg/76974/apophis-m.png
Asteroid 99942 Apophis will make a close approach to Earth in 2029, coming within 32,000 kilometers of the surface, and will be visible from the Eastern Hemisphere without aid. NASA and ESA plan to visit the asteroid to study its composition and orbit, which will help scientists learn more about planetary defense and potentially alter its trajectory.

Infinitone Microtonal Saxophone

https://xerocraft.org/storage/private_media/dc9b7de5-28a5-4f7a-8f2f-468a64276d5a/electric-sax7-1500.jpg
The Infinitone is a new musical instrument that allows musicians to access microtones, the notes between the traditional 12-tone scale, by using a MIDI controller to control the position of slides on the instrument. The Infinitone was created by Subhraag and Robert, who collaborated on the project and used Xerocraft's space and tools to build the instrument, which has the potential to ...

Ask HN: What's the oldest file on your computer?

The user has files dating back to 1981, including a text file from December 12, 1981, and a Wang WP file from 1983. The oldest file with a timestamp is from August 18, 1994, while the user also has files from the 1990s and even earlier, including animations from 1989 and email archives from 1988.

I'm Switching from Laravel to Rails

Register or sign in with developer credentials and ensure a unique and descriptive User-Agent to access the script or application. If blocked, try changing back to default or file a ticket to discuss alternative access methods.

Hans Hollein: Everything Is Architecture

https://designmanifestos.org/wp-content/uploads/2020/05/bauwebds-722x1024-1.jpg
Architecture is not limited to physical buildings, but encompasses all means of environmental determination, including media, technology, and human behavior. Everything is architecture, and architects must expand their thinking beyond traditional building to include non-material means, new technologies, and human experiences.

How automotive radar measures the velocity of objects

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The article discusses how FMCW radar systems measure velocity using Doppler shift, and how phase information can be used to resolve target range and velocity ambiguities. The article also explains the trade-offs between maximum distance and maximum velocity measurements, and how chirp parameters such as duration, number of chirps, and pulse repetition rate affect the radar system's capabilities.

I switched to Vim – and it took me only 6 years to learn it

https://cdn.hashnode.com/res/hashnode/image/upload/v1719166107756/Jog3fISlM.jpg?w=400&h=400&fit=crop&crop=faces&auto=compress,format&format=webp
The author's journey to master Vim began when they saw George Hotz coding on a terminal, and after years of struggle, they finally became proficient in using Vim with IntelliJ and eventually switched to Neovim. With persistence and dedication, the author learned Lua and created their own Neovim configuration, becoming part of the "cool kids club" and achieving incredible typing speed and ...

The semiotics of barbed wire fence

http://languagelog.ldc.upenn.edu/~bgzimmer/barbedwire1.jpg
You visited a historical museum in Gothenberg, Nebraska, where you saw a unique collection of barbed wire fences with signature barbs, each strand specific to a ranch or tract, and learned about the history of barbed wire and its impact on the Great Plains. You also discovered other ways ranchers signal ownership, including branding and tamgas, and plan to write more about communication in ...

Looking ahead to 30 years of FreeDOS

https://www.both.org/wp-content/uploads/2024/01/code_computer_development_programming.png
FreeDOS is an open-source implementation of the DOS operating system, started in 1994 by a user who wanted to create a free alternative to the proprietary DOS. Over the years, many contributors have worked on FreeDOS, making it a robust and user-friendly operating system that can run on classic computers and is still actively maintained today.

The Origin of Jupiter's Great Red Spot

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
The Great Red Spot on Jupiter is the largest and longest-lived vortex, but its formation mechanism remains unknown. Historical observations and numerical simulations suggest it likely formed from a flow disturbance between Jovian zonal jets, with its rotation velocity increasing over time as it shrunk.

Wikipedia: 97% of all articles lead to Philosophy

https://upload.wikimedia.org/wikipedia/commons/thumb/e/e2/Crawl_on_Wikipedia_from_random_article_to_Philosophy..gif/300px-Crawl_on_Wikipedia_from_random_article_to_Philosophy..gif
The "Getting to Philosophy" phenomenon occurs when clicking on the first link in a Wikipedia article often leads to the Philosophy article, with 97% of articles exhibiting this behavior in 2016. The phenomenon has been observed since 2008 and has been attributed to the tendency for Wikipedia pages to move up a "classification chain" due to the Manual of Style guidelines on writing article ...

Mozilla's Original Sin

Mozilla's decision to implement DRM led to a culture of capitulation, abandoning their non-profit mission to preserve the open web. The user suggests that a nonprofit organization should focus solely on browser development, without implementing DRM, to preserve the open web.

One index, two publishers and the global research economy

The emergence of a global research economy after World War II was driven by the growth of international journals and the development of citation indexes, which have become a key measure of academic credibility. However, the dominance of commercial publishers and the unequal representation of journals from non-Anglophone countries have created a stratified system that favors those with greater ...

Character Tiling

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The author, a programmer, shares their experience with creating tile-based backgrounds for 2D games, including their own games and those of others, highlighting the challenges and techniques involved in designing and compressing level data. They also discuss the evolution of tile mapping, from early 8-bit computers to modern PC games, and the importance of efficient compression and ...

Germany's autobahn bridges falling apart

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The Moseltal bridge in Germany was tested by parking 24 red trucks on it to evaluate its structural condition, as many of the country's 40,000 autobahn bridges are in poor condition and urgently need repair. The German government is trying to speed up the renovation process, but faces challenges including a lack of funding, rising construction costs, and the need to balance budget cuts with ...

Optimizing the Roc parser/compiler with data-oriented design

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Data-oriented design (DoD) is a technique to optimize program performance by structuring code to efficiently utilize hardware, focusing on memory-bound problems. The author applies DoD to the roc compiler, achieving faster and more efficient code by rearranging data structures and using arrays to store data.

A Study Says Warp Drives Might Be Real–and We'll Find Them with Lasers

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Scientists propose detecting gravitational waves produced by collapsing warp drives, a hypothetical faster-than-light engine, using laser-based detectors like LIGO or LISA, which could potentially reveal signs of advanced alien civilizations. The idea is to identify the gravitational wave signatures produced by a warp drive containment failure, which could be detectable with future detectors ...

How electronic ignition works and also how to make a spark plug play music

https://qph.cf2.quoracdn.net/main-qimg-8e812760d7dc60e985af90884d655df5
The author and his friend Roger explored how spark plugs work, starting with electromechanical ignition systems and distributor-based systems, then moving to electronic ignition systems with coil-on-plug designs. They experimented with an Arduino-controlled ignition coil, achieving high-frequency sparks and even generating musical notes, demonstrating the potential for Arduino-controlled ...

Much Ado About First Folios — the world's largest Shakespeare collection reopens

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The Folger Shakespeare Library in Washington, D.C. has undergone a four-year transformation, reopening with new museum spaces, leadership, and programming outreach, including the display of 82 copies of Shakespeare's "First Folio" for the first time. The library aims to reach a more universal audience, with a focus on the importance of the humanities and arts in a functioning democracy, and ...

BeyondCorp (2014)

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Google is rethinking network security by removing the need for a privileged intranet and moving corporate apps to the internet. This approach, called BeyondCorp, aims to provide a more secure and flexible way to access company resources.

Diffusion Limited Aggregation (1991)

http://www.paulbourke.net/fractals/dla/dla3.gif
Diffusion Limited Aggregation (DLA) is a model of physical processes that generates attractive images and life-like structures. The process involves particles wandering randomly before attaching to a structure, and can be simulated in 2D and 3D using various methods and constraints.

Just open-sourced E25DX: a modern Hugo theme for tech documentations

https://opengraph.githubassets.com/ac17767245725255d3ec923d53981ebf235e7c2f99dd7b08c7a0816592be5e9e/dumindu/E25DX
The user created a new Hugo site, added a theme, and initialized a Git repository. They also customized the site's configuration, added sidebar titles and page titles, and disabled Git info for the Hugo server.

Audit finds NYPD spent thousands of police hours on unconfirmed gunshot alerts

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The New York City Comptroller's audit found that the NYPD wasted thousands of officer hours responding to unconfirmed ShotSpotter alerts, with only 13% of alerts resulting in confirmed shootings. The audit also found that ShotSpotter overstates its effectiveness and the NYPD fails to hold the company accountable, with the Comptroller recommending changes to the contract and performance metrics.

Stamp: A Mini-Language for Templates

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Stamp is a mini-language that allows concise creation, editing, sharing, and expansion of project templates. It was jointly created by the user and Guillaume Papin, and can be installed via npm install -g scroll-cli.

Is America approaching peak tip?

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The US is experiencing a surge in tipping culture, with tips growing for workers who already receive them and potentially coming for those who don't. However, a proposal by Donald Trump to exempt tips from taxes may be approaching a peak, as it's unclear how the government would fund public services without this revenue.

Batteries as a Military Enabler

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Batteries have significant military implications, with China's lithium-ion storage batteries posing potential security risks, especially in a contingency over Taiwan. To constrain China's battery complex, the US and its allies should phase in tariffs on Chinese exports, de-risk supply chains, and develop their own battery capacity and capabilities.

Why do we still teach people to calculate?

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Conrad Wolfram, a mathematician and entrepreneur, has developed a radical new math curriculum that focuses on computational thinking and problem-solving, rather than traditional rote learning. Despite initial success in Estonia, Wolfram has faced challenges in implementing his approach in other countries, citing a lack of support and a rigid educational ecosystem that resists change.

Domino's retreats from Italy having failed to conquer the home of pizza (2022)

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Domino's Pizza has closed all 29 of its Italian outlets after failing to gain traction in the market, despite initially planning to open 880 locations by 2030. The company's attempt to compete with traditional Italian pizzerias was hindered by the pandemic and the popularity of affordable pizza options in Italy.

Native American Indian Star Charts

https://www.californiaindianeducation.org/educational_news/roycook/pictures/Diegeno_Ground_Painting.gif
The text discusses various tribal stories and legends from the West, East, South, and North, including the Tohono O'odham story of the Milky Way as spilled tepary beans and the Ipai-Tipai story of the creation of man and the stars. The text also explores the cultural significance of ground paintings and songs, such as the Lightning Songs, which describe geographical locations and social ...

Is Guix full-source bootstrap a lie?

https://simon.tournier.info/posts/images/graph-bootstrap.jpg
Guix provides a way to inspect and verify the entire software supply chain, including dependencies, by building all the packages from source code, starting from the bootstrap-seeds package. However, this process is not yet complete for all packages, as some dependencies, such as Haskell and OCaml, require additional binaries that are not yet bootstrapped from the C programming language.

Is Codeberg.org financially sustainable relying on member fees? Any precedents?

Codeberg e.V. is a non-profit organization that allows individuals and corporate entities to support its mission through membership, with benefits including voting rights and regular updates. Membership fees vary, with a minimum annual fee of 24 € for private individuals, and discounts available for those with limited financial means.

How to Design an ISA

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The author discusses the importance of designing a good Instruction Set Architecture (ISA) for a processor, highlighting the trade-offs between encoding efficiency, decoding complexity, and microarchitectural optimization. The author argues that a good ISA should balance these factors, considering the specific needs of the target microarchitecture and the source languages being compiled, and ...

Mozilla's Original Sin

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The debate revolves around whether Mozilla's decision to implement DRM in Firefox was a mistake, with some arguing that it compromised the browser's principles and others believing that it was necessary to remain competitive in the market. The discussion also touches on the idea that even if Firefox had refused to implement DRM, other browsers would have likely done so, and that the browser's ...

The prevalence, persistence, and perils of lame delegations (2021)

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Lame delegations in the Domain Name System (DNS) occur when a nameserver responsible for a domain is unable to provide authoritative information, introducing performance and security risks. A study found that nearly 50% of nameservers in .BIZ were lame delegated over eight years, often due to registrar practices, and that lame delegations can persist for a long time and become potential security risks.

The pivot to AI: Pay no attention to the man behind the curtain

https://amycastor.com/wp-content/uploads/2023/09/hal9000.jpeg
The current AI boom is being fueled by venture capital, with over $40 billion invested in AI startups in the first half of 2023, but the technology is facing criticism for its lack of practical applications and overhyping. Many AI systems are being used for spamming, replacing quality work with cheap bot output, and the industry is facing issues with carbon emissions and water usage from ...

The Encyclopedia Project, or How to Know in the Age of AI

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The author argues that the internet's reliance on content over knowledge has led to a crisis of epistemology, where it's difficult to distinguish between truth and falsehood, and that we need to return to traditional methods of knowledge management and critical thinking to navigate this crisis. The author also emphasizes the importance of teaching children to think critically about knowledge ...

PostScript and Interpress: A Comparison (1985)

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The article compares the programming languages PostScript and Interpress, highlighting their differences in syntax, semantics, and implementation. While both languages are designed for describing page images, PostScript provides more flexibility and optional protection mechanisms, whereas Interpress has a more rigid structure and mandatory protection mechanisms.

25 Years of Counter-Strike

The user initially didn't expect Counter-Strike (CS) to become as big as it did, but after trying the second beta, they were hooked by its rough but charming gameplay and welcoming community. The game's rapid evolution and improvement over time helped it become a behemoth that kick-started careers and spawned industries, with the user feeling fortunate to have played a part in its early success.

The Blank Sheet Method: From Passive Reading to Active Learning

The website is using a security service to protect itself from online attacks and has blocked the user's action. The user can email the site owner to report the block and include details of what they were doing when the page came up.

The unbearable sorrow of Apple Weather

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The user is puzzled by the Apple Weather app's 10-day forecast temperature range display, specifically the alignment of the colored temperature bars within the slots. They attempt to understand the logic behind the display, but find inconsistencies in the alignment and color usage, leading to frustration.

California AI bill becomes a lightning rod–for safety advocates and devs alike

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California's Safe and Secure Innovation for Frontier Artificial Intelligence Models Act aims to regulate the development and training of advanced AI models to prevent their misuse, but developers argue it could stifle innovation. The bill requires large-scale AI model developers to provide reasonable assurances that their models do not have hazardous capabilities and to report AI safety ...

Shahed-136 kamikaze drone servomotor [video]

Getting 100% code coverage doesn't eliminate bugs

https://blog.codepipes.com/assets/code-coverage/coverage.png
Achieving 100% code coverage does not guarantee zero bugs, as demonstrated by an example of a rocket launch software with 100% coverage but a critical bug. Instead, focusing on other metrics and approaches, such as formal verification and proof checkers, can be more effective in ensuring software quality.

Continuous Pitch Wind Instruments

https://glissonic.com/wp-content/themes/arkid/assets/img/logo-dark.png
Glissonic is a new wind instrument family that uses a longitudinal slot and magnetic foil to produce microtonal sounds, allowing for any note in the pitch continuum. The instrument can be played with multiple fingers or sliding a single finger, and can be applied to various wind instruments.

OpenAI is building its local app to subvert the permission system of the web

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The author discusses the rise of AI and its potential to automate various tasks, citing examples of AI-powered apps and services. However, the author also notes that the current permission system of the internet may hinder the development of AI, and proposes local AI apps as a potential solution to bypass these limitations.

Truckstops on the Information Superhighway (2018)

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In the late 1960s and early 1970s, Ant Farm, an experimental architecture collective, created the Truckstop Network, a mobile, decentralized network of truck stops that would allow people to produce and consume media on the road, foreshadowing the internet's distributed architecture. The collective's vision of a mobile, participatory media environment was influenced by the counterculture and ...

Sarepta. Why?

Sarepta's approval of eteplirsen and golodirsen for Duchenne muscular dystrophy was met with controversy due to flawed trial designs and lack of convincing data. The company's gene therapy, elevidys, was approved despite failing to meet its primary endpoint, with the FDA's CBER head, Peter Marks, overruling review teams and granting a wider label approval.