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Subreply – An open source text-only social network

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What birdsong and back ends can teach us about magic

Teller describes the underlying principle like so: “Sometimes magic is just someone spending more time on something than anyone else might reasonably expect.” Allen Pike: An Unreasonable Amount of Time And if you look at it from the other direction, that means that you - yes, you personally 🫵 - have the opportunity to produce magical experiences without any “secret sauce” beyond your willingness to put in the work. But it might not come easily. Progress Everyone who writes code goes through t

Log by time, not by count

Log by Time, not by Count July 20, 2025 "How to Log" is a surprisingly deep topic in software engineering with many different viewpoints, and they're almost all valid in different situations. I'm going to argue that when processing lots of events, it's best to log every X seconds, rather than every X messages. This is a simple concept, but I've never seen it written down before. Let's quickly look at some pseudocode to understand what I mean. Count-based logging num_events_processed = 0 whi

Show HN: X11 desktop widget that shows location of your network peers on a map

connmap connmap is an X11 desktop widget that shows location of your current network peers on a world map. (Works on Wayland as well!) Installation Clone the repository git clone https://github.com/h2337/connmap --depth 1 , install the dependencies (see below), run make install , then run the resulting executable ./connmap.elf . If you want to run it without attaching it to the terminal then add ampersand at the end of the command: ./connmal.elf & . You can also add it to your i3wm config t

The Daily Life of a Medieval King

Have you wondered what a medieval king did on a typical day? Thanks to Christine de Pizan, we have an account of what daily life was like for King Charles V of France. Around the year 1404, Christine de Pizan completed her work, Livre des faits et bonnes mœurs du sage roy Charles V. It was both a biography of the French king who reigned from 1364 to 1380 and a guide to how an ideal monarch should live and rule. Christine had a good vantage point to tell this story. Her father, Tommaso di Pizan

How to handle people dismissing io_uring as insecure?

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QuakeNotch: Quake Terminal on your MacBook's notch

Transform your notch into a beautiful music visualizer. Watch as your favorite tracks come alive with stunning audio oscillations and dynamic animations. Perfect integration with Apple Music brings your music experience to a whole new level. Customize every aspect of QuakeNotch to match your style and workflow. From themes and colors to keyboard shortcuts and behavior, create the perfect notch experience tailored just for you. Instant and robust access from notch Access a full-featured termin

Hacking a Toniebox

Hack all the things - Toniebox 17. Jun 2025 Continuing my Hack all the things series, I’m doing something slightly different today. So far I’ve hacked my PS Vita and Nintendo 3DS, but this time I want to talk about my Toniebox. Or rather…my kids’ Toniebox. If you’re unfamiliar with the thing, it’s a little music box with a built-in speaker, two little “ears” to raise or lower the volume and an NFC reader at the top. Instead of putting in cassettes or CDs (yes, I’m old!), you instead put litt

Subreply – an open source text-only social network

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New colors without shooting lasers into your eyes

1. Your eyes sense color. They do this because you have three different kinds of cone cells on your retinas, which are sensitive to different wavelengths of light. For whatever reason, evolution decided those wavelengths should be overlapping. For example, M cones are most sensitive to 535 nm light, while L cones are most sensitive to 560 nm light. But M cones are still stimulated quite a lot by 560 nm light—around 80% of maximum. This means you never (normally) get to experience having just o

Staying cool without refrigerants: Next-generation Peltier cooling

On June 28, Samsung Electronics, together with the Johns Hopkins University Applied Physics Laboratory (APL), published a paper on next-generation Peltier cooling technology in the prestigious scientific journal Nature Communications. The team successfully developed a high-efficiency thin-film semiconductor Peltier device using nano-engineering technology and demonstrated refrigerant-free cooling, highlighting the potential to deliver outstanding performance without conventional refrigerants.

Can Cortisol Supplements Really Lower Stress? I Asked the Experts

Cortisol was discovered in the mid-20th century, but in the last year or so, this naturally occurring hormone has entered the limelight of social media. You can find videos on TikTok discussing "cortisol face" with millions of views. Unfortunately, trends are rarely as simple as they appear and may have people jumping into action before learning what cortisol supplements even are and how they react in the body. While cortisol supplements can be the right choice in some situations, it's essentia

Chinese Scientists Invent System for Extracting Oxygen, Water and Rocket Fuel From Moon Dust

Chinese researchers say they've devised a new way to extract water from lunar soil and convert it into fuel. As detailed in a new paper published today in the journal Joule, the team found that their proposed "photothermal strategy" — essentially converting light into heat — could effectively convert carbon dioxide from extracted water into carbon monoxide, hydrogen, and oxygen gas, a "potential route for sustaining human life on the Moon and enabling long-term extraterrestrial exploration." "

Scientists Find Evidence of Grim Long-Term Effects of Fad Diets

Image by Getty Images Studies The way Westerners diet — often alternating dubious and restrictive food regimens with binge eating, in a phenomenon known as "yo-yo dieting" — may be messing with their gut flora and their brains. In a new study published in the journal Advanced Science, researchers from France's University of Rennes and Paris-Saclay University found, after conducting a series of studies with mice, that yo-yo diets appeared to result in long-lasting changes to their gut bacteria.

Think smartphone cameras have peaked? Here’s what’s still to come

Robert Triggs / Android Authority I’ve seen some absolutely phenomenal camera phones cross my desk this year. The extravagant Xiaomi 15 Ultra and more mainstream OnePlus 13, in particular, have upped the ante on the iPhone, Galaxy, and Pixel triopoly, providing avid photographers more choice than ever before. While some of their best bits will inevitably trickle down to more affordable price points, thereby introducing more consumers to these superb capabilities, there’s also a sense that we m

HPE warns of hardcoded passwords in Aruba access points

Hewlett-Packard Enterprise (HPE) is warning of hardcoded credentials in Aruba Instant On Access Points that allow attackers to bypass normal device authentication and access the web interface. Aruba Instant On Access Points are compact, plug-and-play wireless (Wi-Fi) devices, designed primarily for small to medium-sized businesses, offering enterprise-grade features (guest networks, traffic segmentation) with cloud/mobile app management. The security issue, tracked as CVE-2025-37103 and rated

Behind the ballistics of the 'explosive' squirting cucumber

This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility: Squirting cucumber (Ecballium elaterium). Credit: Helen Gorges New research into the biomechanics of explosive seed dispersal in squirting cucumbers (Ecballium elaterium) reveals how these plants have adapted a suite of unique traits that help propel their high-speed seeds far and wide. Seed dispersal comes in many

13 of the Best Movies Peacock Has to Offer

Peacock is full of must-see movies. Sure, the streaming conversation is often focused on the top-tier platforms like Netflix, Disney Plus and Prime Video. But the NBC Universal-owned streamer deserves its flowers -- and I'm going to show you why. Let's talk about blockbusters for a second. Universal Pictures has been churning out box office hits and Oscar-winning flicks for more than a century. A large sampling of these titles can be found here, including the first-ever blockbuster, Jaws, among

Xbox Game Pass Adds Grounded 2 and Others This Month

The award-winning, quirky survival game Grounded is like the game version of the classic '80s comedy film Honey, I Shrunk the Kids. And Xbox Game Pass subscribers can get early access to that game's sequel, Grounded 2, on July 29. Xbox Game Pass Ultimate, a CNET Editors' Choice award pick, offers hundreds of games you can play on your Xbox Series X, Xbox Series S, Xbox One and PC or mobile device for $20 a month. A subscription gives you access to a large library of games, with new ones, includ

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The Hunt for a Fundamental Theory of Quantum Gravity

The original version of this story appeared in Quanta Magazine. Two blind spots torture physicists: the birth of the universe and the center of a black hole. The former may feel like a moment in time and the latter a point in space, but in both cases the normally interwoven threads of space and time seem to stop short. These mysterious points are known as singularities. Singularities are predictions of Albert Einstein’s general theory of relativity. According to this theory, clumps of matter o

Best Nintendo Switch 2 Controllers (2025), Tested and Reviewed

One of the best things about the Nintendo Switch 2 is its versatility. The new console continues to balance on-the-go handheld gaming with big-screen TV play, remains backward compatible with most Switch games, and adds more retro games to its digital library with the arrival of classic GameCube games. That variety makes for several ways to play. From the upgraded Joy-Con 2 grips that introduce point-and-click mouse controls alongside the familiar motion tracking features, to the dedicated Swit

Tesla loses its charm for India’s loyalists — even as Musk finally delivers

Tesla opened the doors to its first showroom in India this week, and among the first visitors was Vishal Gondal — a longtime Tesla and Elon Musk loyalist who pre-booked a Model 3 in April 2016, just hours after reservations went live. But despite showing up on day one, Gondal says he has no plans to buy a Tesla now. “I felt a little bit underwhelmed,” said Gondal, founder and CEO of fitness-tech startup GOQii, after visiting the maiden Tesla showroom in Mumbai’s Bandra-Kurla Complex. Over the

Apple's latest iPad hit a new low price at Walmart - and it's available in every color

Maria Diaz/ZDNET An iPad can help with success in many areas, such as school, professional work, content creation, and more. With the new school year just around the corner, there's no better time to scoop up the most recent iPad model from Walmart. Also: Why I like the base iPad more than the Pro and Air - especially at this price Right now, the 11th-Gen 128GB iPad is on sale for $299, which is $50 off its original retail price of $350. If you need more storage space, the 256GB iPad is retai

This Apple Watch model is my favorite and I use it daily - right now, it's over 30% off

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

“Bypassing” specialization in Rust

"Bypassing" specialization in Rust or How I Learned to Stop Worrying and Love Function Pointers I've spent nearly a year developing and refining my own FAT driver in Rust. For much of the last six months, I had to put the project on hold due to school commitments. However, I'm back now, especially since this project has become my most-starred repository on GitHub. During that journey, I (almost) learned how FAT and filesystems in general work behind-the-scenes and in my attempts to navigate the

Best Portable Projector for Movies and Gaming Anywhere in 2025

How portable do you really need? Pretty much every projector is "portable" to some degree. Many of the projectors on the best projector list, for example, are small enough to fit in a backpack. They might fill that backpack, but that's their size. If you just want something for the occasional movie night, one of those would be significantly brighter and create a better image. Generally speaking, the smaller the projector, the dimmer it is. How much battery do you need? Most portable projectors

Your Recession FAQs Answered: 5 Tips to Help You Prepare, Not Panic

Recession risks are down, but keep your guard up. Getty Images/Jeffrey Hazelwood/CNET Early this spring, talk of a recession swirled after President Donald Trump began his chaotic tariff campaign. The likelihood of a severe economic downturn hit 66%, according to Polymarket. As Trump deferred some of his most aggressive trade proposals, those forecasts leveled out, but the contours of a potential recession are hard to ignore. Growth in the first quarter of 2025? Down. Jobless claims? Sharply h

Do Contact Lenses Expire? Everything Eye Doctors Want You to Know About Replacing Your Contacts

If you wear contact lenses, you probably don't think much about them. But they're a relatively new invention -- in fact, the first disposable contact lens wasn't introduced until 1982. "We think of contact lenses as being so normal, but 100 years ago, nobody walked around with little pieces of plastic over their eyes," says ophthalmologist Dr. Robert Kinast, the vice chair of ophthalmology at Legacy Devers Eye Institute and co-founder of GentleDrop. "Contact lenses are foreign bodies and should