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Concurrent Programming with Harmony

news.ycombinator.com Unknown 2026-02-12 11:22:12

Appendix H. Peterson's Algorithm In 1981, Gary L. Peterson came up with a beautiful solution to the mutual exclusion problem, now known as ``Peterson's Algorithm'' [37]. Figure 5.6 presents the algorithm. Why does it work? We will focus here on how one might go about proving mutual exclusion for an algorithm such as Peterson's. It turns out that doing so is not trivial. You have to understand a little bit about how the Harmony virtual machine (HVM) works. In Chapter 4 we talked about the concep

Topics: invariant state states step thread

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How I build software quickly

news.ycombinator.com Evan Hahn 2026-02-16 08:41:51

Software is built under time and quality constraints. We want to write good code and have it done quickly. If you go too fast, your work is buggy and hard to maintain. If you go too slowly, nothing gets shipped. I have not mastered this tension, but I’ll share a few lessons I’ve learned. This post focuses on being a developer on a small team, maintaining software over multiple years. It doesn’t focus on creating quick prototypes. And this is only based on my own experience! “How good should t

Topics: code draft rough time ve

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Dyson Reveals Its Futuristic Farming Vision

cnet.com See Full Bio 2026-02-16 00:38:00

Dyson, a company best known for its vacuums and hair dryers, unveiled a new circular farm design featuring rows of strawberry plants that rotate to share sunlight, robots that do everything from harvesting to releasing helpful insects, and sensors to help farmers keep an eye on things. The company is also getting into the renewable energy game. Check out the video in this article to find out how it all connects and what it could mean for the future of food.

Topics: article best check circular company

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From Outer Space to Your Router: Here's How Satellite Internet Gets You Online

cnet.com See Full Bio 2026-02-16 14:00:00

The satellite internet space has only gotten more competitive in recent years, thanks to the rise of Starlink. Now that Amazon's Project Kuiper has successfully launched LEO satellites to kick off its own service, we only expect the conversation to grow from here. Despite the popularity of Starlink and the growing power of its 7,000 satellites, satellite internet is generally considered a last resort for home internet, due to slower-than-average speeds and the steep costs of equipment. However,

Topics: data dish internet satellite starlink

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The Structure of Ice in Space Is Neither Order nor Chaos—It’s Both

wired.com Jorge Garay 2026-02-16 11:00:00

Ice is a key component in the universe. There are frozen water molecules on comets, moons, exoplanets, and in your drink as you cool off from the summer heat. However, under the microscope, not all ice is the same, even though it is made of the same components. The internal structure of Earth’s ice is a cosmological oddity. Its molecules are arranged in geometric structures, usually hexagons that repeat each other. Ice on Earth forms this way due to the temperature and pressure of the our plane

Topics: earth ice space structure water

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Google exec: ‘We’re going to be combining ChromeOS and Android’

theverge.com Dominic Preston 2026-02-16 11:34:55

Google’s head of Android has said that the company plans to combine its mobile operating system with ChromeOS, the software that currently runs across Google’s Chromebook laptops. Sameer Samat, president of Google’s Android ecosystem, told TechRadar that “we’re going to be combining Chrome OS and Android into a single platform.” Samat, who’s responsible for Android’s implementation across mobile, wearables, XR, TV, and auto, added that he’s “interested in how people are using their laptops thes

Topics: android change chromeos google long

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Now Jack Dorsey has built an app to track your vitamin D

theverge.com Dominic Preston 2026-02-16 14:18:50

Sun Day is available now for iOS via TestFlight, and the code for the project is available on GitHub. The app uses location-based data to display your local UV index and sunlight hours. You can detail your skin type and clothing level, then manually toggle when you’re in and out of the sun and the app will track your rough vitamin D levels for the day, along with how long you can be in direct sunlight without burning.

Topics: app available day sun sunlight

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Coffee at 30 cents is the latest gimmick in China’s billion-dollar ‘instant commerce’ price war

cnbc.com Dylan Butts Evelyn Cheng 2026-02-16 06:06:54

A Meituan food delivery courier rides an electric scooter in Chongqing, China, on March 29, 2025. Cheng Xin | Getty Images News | Getty Images In China's fiercely competitive market, the latest price war is playing out in the growing "instant commerce" sector, where companies are launching massive subsidies and other incentives to get consumers to spend. The 'instant commerce' sector is backed by massive networks of scooter drivers that quickly transport everything from food and drink to fast f

Topics: china commerce delivery jd meituan

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Nvidia CEO downplays U.S. fears that China's military will use his firm's chips

cnbc.com Dylan Butts 2026-02-16 14:18:20

Co-founder and chief executive officer of Nvidia Corp., Jensen Huang attends the 9th edition of the VivaTech trade show in Paris on June 11, 2025. Nvidia CEO Jensen Huang has downplayed U.S. fears that his firm's chips will aid the Chinese military, days ahead of another trip to the country as he attempts to walk a tightrope between Washington and Beijing. In an interview with CNN aired Sunday, Huang said "we don't have to worry about" China's military using U.S.-made technology because "they

Topics: china chips huang military nvidia

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Vast Numbers of Lonely Kids Are Using AI as Substitute Friends

futurism.com Unknown 2026-02-16 05:00:03

Lonely children and teens are replacing real-life friendship with AI, and experts are worried. A new report from the nonprofit Internet Matters, which supports efforts to keep children safe online, found that children and teens are using programs like ChatGPT, Character.AI, and Snapchat's MyAI to simulate friendship more than ever before. Of the 1,000 children aged nine to 17 that Internet Matters surveyed for its "Me, Myself, and AI" report, some 67 percent said they use AI chatbots regularly

Topics: ai chatbot chatbots children like

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Google confirms it’s ‘combining’ Chrome OS and Android into a single platform

androidauthority.com Unknown 2026-02-16 14:01:06

We exclusively reported back in November that Google was working to merge Chrome OS into Android . Now, a Google executive has effectively confirmed the company’s intentions to combine the two platforms. Sameer Samat, president of Android ecosystem at Google, asked a TechRadar journalist why they were using an Apple Watch, iPhone, and MacBook: I asked because we’re going to be combining Chrome OS and Android into a single platform, and I am very interested in how people are using their laptops

Topics: android chrome executive google os

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AirTag 2: Here’s what we’re expecting

9to5mac.com Michael Burkhardt 2026-02-16 09:22:43

Apple has long wrapped up its spring releases, including the new iPhone 16e, M4 MacBook Air, M3 iPad Air, and A16 iPad. While the iPhone 17 lineup will certainly be the star of the show for this fall’s hardware releases, there’s something a bit unique coming later this year: AirTag 2. Why AirTag 2 Despite the fact that it sounds like an uninteresting refresh, AirTag 2 will actually pack a number of relatively important upgrades for the everyday user. A new version of a tiny little item tracke

Topics: airtag apple iphone like new

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Show HN: ArchGW – An intelligent edge and service proxy for agents

news.ycombinator.com Unknown 2026-02-15 00:55:39

Arch is a proxy server designed as a modular edge and AI gateway for agentic apps Arch handles the pesky low-level work in building agentic apps — like applying guardrails, clarifying vague user input, routing prompts to the right agent, and unifying access to any LLM. It’s a language and framework friendly infrastructure layer designed to help you build and ship agentic apps faster. Quickstart • Demos • Build agentic apps with Arch • Route LLMs • Documentation • Contact Overview AI demos a

Topics: 26 arch info model routing

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Black hole merger challenges our understanding of black hole formation

news.ycombinator.com Gayoung Lee 2026-02-16 06:38:20

Gravitational waves—ripples in space-time caused by violent cosmic events—travel at the speed of light in every direction, eventually fading out like ripples in water. But some events are so destructive and extreme that they create disturbances in spacetime more like powerful waves than small ripples, with enough energy to reach our own detectors here on Earth. Today, the LIGO Collaboration announced the detection of the most colossal black hole merger known to date, the final product of which

Topics: black gravitational hole ligo waves

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GLP-1s Are Breaking Life Insurance

news.ycombinator.com Ashwin Sharma 2026-02-15 23:31:47

GPT/GLP-1 Illustration Hello and happy Sunday! Was this newsletter forwarded to you? Sign up to get it in your inbox. I've just got back from HLTH in Amsterdam, nursing what might be the worst three-day hangover of my adult life. Worth it, though. It's one of the best health tech events in Europe, and I made some genuinely great connections. If you’re ever at a large health conference, here’s a neat little hack I learned: Be brave enough to ask questions during panels. It's terrifying, but su

Topics: glp health insurers weight year

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James Webb, Hubble space telescopes face reduction in operations

news.ycombinator.com Mark Zastrow 2026-02-16 09:10:54

The James Webb Space Telescope is pictured here before being folded up for launch. Credit: NASA Key Takeaways: NASA's Hubble and James Webb telescopes face operational cuts due to budget limitations. Reduced funding may lead to fewer available telescope modes and less user support. Hubble's budget has remained flat for a decade, decreasing its purchasing power. “It’s fewer people, really,” said Neill Reid. The teams operating the Hubble Space Telescope and James Webb Space Telescope (JWST)

Topics: budget hubble nasa reid said

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The Scourge of Arial (2001)

news.ycombinator.com Unknown 2026-02-16 06:55:06

Arial is everywhere. If you don’t know what it is, you don’t use a modern personal computer. Arial is a font that is familiar to anyone who uses Microsoft products, whether on a PC or a Mac. It has spread like a virus through the typographic landscape and illustrates the pervasiveness of Microsoft’s influence in the world. Arial’s ubiquity is not due to its beauty. It’s actually rather homely. Not that homeliness is necessarily a bad thing for a typeface. With typefaces, character and history a

Topics: adobe arial fonts helvetica type

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A Century of Quantum Mechanics

news.ycombinator.com Unknown 2026-02-11 23:41:58

Lieber Pauli... Read the translation of the letter sent by Werner Heisenberg to Wolfgang Pauli on 9 July 1925. The original letter is preserved in CERN’s Wolfgang Pauli Archive. (Copyright: Heisenberg Society) Dear Pauli, If you believe that I read your letter laughing mockingly, then you are gravely mistaken; quite the contrary – since Helgoland, my views on mechanics have become more radical with each passing day, and it is my firm conviction that Bohr’s theory of the hydrogen atom, in its pre

Topics: heisenberg letter orbits pauli theory

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Tom Holland is So Happy to Be Part of ‘The Odyssey’

gizmodo.com Justin Carter 2026-02-15 23:05:56

Next July, we’ll be watching Christopher Nolan’s The Odyssey on the big screen. Audiences seeing movies like Superman and Jurassic World Rebirth in theaters are treated to a first look establishing Tom Holland’s Telemachus on the search for his missing father Odysseus (Matt Damon). For Holland, getting to work with filmmakers whose work he grew up watching was a joy unto itself. During a recent GQ interview, he called the production “the job of a lifetime. Matt Damon and Anne Hathaway have alwa

Topics: best holland nolan ve work

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Astronomers Detect a Black Hole Merger That’s So Massive It Shouldn’t Exist

gizmodo.com Gayoung Lee 2026-02-16 05:01:09

Gravitational waves—ripples in space-time caused by violent cosmic events—travel at the speed of light in every direction, eventually fading out like ripples in water. But some events are so destructive and extreme that they create disturbances in spacetime more like powerful waves than small ripples, with enough energy to reach our own detectors here on Earth. Today, the LIGO Collaboration announced the detection of the most colossal black hole merger known to date, the final product of which

Topics: black gravitational hole ligo waves

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The U.S. and EU Are Fighting Over Who Controls Big Tech

gizmodo.com Ece Yildirim 2026-02-16 05:27:46

President Trump just slapped 30% tariffs on goods coming from the European Union, escalating a long-simmering conflict over who gets to write the rules for Big Tech. The move came just after Brussels moved forward with more regulations, this time targeting the booming field of artificial intelligence. The latest flashpoint is the EU’s new “Code of Practice” for AI, a set of voluntary guidelines released Thursday aimed at addressing public safety concerns. While not legally binding, the code bui

Topics: digital eu european tech trump

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Dyson Reveals Futuristic Farming Vision

cnet.com See Full Bio 2026-02-16 06:38:19

Dyson, a company best known for its vacuums and hair dryers, unveiled a new circular farm design featuring rows of strawberry plants that rotate to share sunlight, robots that do everything from harvesting to releasing helpful insects, and sensors to help farmers keep an eye on things. The company is also getting into the renewable energy game. Check out the video in this article to find out how it all connects and what it could mean for the future of food.

Topics: article best check circular company

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Best Prime Day Beauty Deals 2025: Hair, Skin, and Dental Care

wired.com Boutayna Chokrane 2026-02-13 18:19:35

Amazon Prime Day runs from July 8 to 11, and it’s a feeding frenzy for beauty steals, so I’m here to help you spend your money semi-responsibly. I’ve combed through countless hot tools, dental devices, and skin care gadgets to find the best Prime Day beauty deals. We’ve tested everything here and would vouch for these products even without a markdown. (This is WIRED, after all.) I’ll be updating this list daily as more deals go live, so keep checking back. If you're shopping for other gadgets a

Topics: best dry dyson hair heat

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Scientists Gene Hack Mice So Their Livers Produce Their Own Ozempic-Like Drug

futurism.com Unknown 2026-02-16 06:51:22

Image by Remi Benali/Getty Images Rx/Medicines Scientists have gene-hacked mice to produce their own Ozempic-like drugs — possibly, and provocatively, perhaps paving a path for humans to do so themselves one day. In a new study published in the journal Communications Medicine, researchers from Japan's University of Osaka successfully gene-edited mice livers to produce exenatide, a first-generation diabetes drug and predecessor to now-trendy jabs like Ozempic and Mounjaro. Using lab mice that

Topics: gene glp mice ozempic researchers

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The human harbor: Navigating identity and meaning in the AI age

venturebeat.com Gary Grossman 2026-02-16 08:35:00

Want smarter insights in your inbox? Sign up for our weekly newsletters to get only what matters to enterprise AI, data, and security leaders. Subscribe Now Image generated by ChatGPT. We are living through a time when AI is reshaping how we work but also how we think, perceive and assign meaning. This phase is not just about smarter tools or faster work. AI is beginning to reshape how we define value, purpose and identity itself. The future is not just unpredictable in terms of unknowable eve

Topics: ai harbor human just meaning

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These are the pros and cons of buying from Apple’s refurbished store: Is it worth it?

9to5mac.com Michael Burkhardt 2026-02-16 06:17:24

Apple has long offered a refurbished store on its website, where it sells recent generation products at a pretty sizable discount. Unlike other refurbished offerings, Apple guarantees a replaced outer shell, battery, and glass – ensuring no wear and tear. You also get a 1 year Apple warranty and the ability to add AppleCare if you’d like. That sounds great, but is it actually worth it? Well, it depends. We’ll be delving into Apple refurbished listings, and comparing it to other offerings on the

Topics: amazon apple pro products refurbished

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Windows 10 KB5062554 update breaks emoji panel search feature

bleepingcomputer.com Unknown 2026-02-16 05:15:25

The search feature for the Windows 10 emoji panel is broken after installing the KB5062554 cumulative update released Tuesday, making it not possible to look up emojis by name or keyword. Windows includes an emoji panel that allows you to select emojis to insert into text or search for an emoji using keywords. On Tuesday, Microsoft released Windows updates to fix bugs and security vulnerabilities as part of the July 2025 Patch Tuesday. Since installing the Windows 10 KB5062554 update, numerou

Topics: 10 emoji feature search windows

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Holographic ribbon aims to oust magnetic tape with 50-year life span and 200TB

news.ycombinator.com Mark Tyson 2026-02-16 06:58:24

Details behind HoloMem’s holographic tape innovations are beginning to come into clearer view. The UK-based startup recently chatted with Blocks & Files about its potentially disruptive technology for long-term cold storage. HoloMem is another emerging storage idea which relies on optical technology - to enable holographic storage. However, it cleverly melds the durability and density advantage of optical formats with a flexible polymer ribbon-loaded cartridge, so it can usurp entrenched LTO mag

Topics: holomem magnetic storage tape technology

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Hungary's oldest library fighting to save 100k books from a beetle infestation

news.ycombinator.com Https 2026-02-16 05:24:53

PANNONHALMA, Hungary — Tens of thousands of centuries-old books are being pulled from the shelves of a medieval abbey in Hungary in an effort to save them from a beetle infestation that could wipe out centuries of history. The 1,000-year-old Pannonhalma Archabbey is a sprawling Benedictine monastery that is one of Hungary's oldest centers of learning and a UNESCO World Heritage site. Restoration workers are removing about 100,000 handbound books from their shelves and carefully placing them in

Topics: 000 abbey beetle books hungary

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Infisical (YC W23) Is Hiring DevRel Engineers

news.ycombinator.com Unknown 2026-02-16 04:00:57

Infisical is looking to hire exceptional talent to join our teams in building the open source security infrastructure stack for the AI era. We're building a generational company with a world-class team. This isn’t a place to coast — but if you want to grow fast, take ownership, and solve tough problems, you’ll be challenged like nowhere else. What We’re Looking For We’re looking for a developer-focused communicator who’s excited about developer tools, security infrastructure, and developer ex

Topics: community developer infisical ll technical

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Latest Tech News

Concurrent Programming with Harmony

How I build software quickly

Dyson Reveals Its Futuristic Farming Vision

From Outer Space to Your Router: Here's How Satellite Internet Gets You Online

The Structure of Ice in Space Is Neither Order nor Chaos—It’s Both

Google exec: ‘We’re going to be combining ChromeOS and Android’

Now Jack Dorsey has built an app to track your vitamin D

Coffee at 30 cents is the latest gimmick in China’s billion-dollar ‘instant commerce’ price war

Nvidia CEO downplays U.S. fears that China's military will use his firm's chips

Vast Numbers of Lonely Kids Are Using AI as Substitute Friends

Google confirms it’s ‘combining’ Chrome OS and Android into a single platform

AirTag 2: Here’s what we’re expecting

Show HN: ArchGW – An intelligent edge and service proxy for agents

Black hole merger challenges our understanding of black hole formation

GLP-1s Are Breaking Life Insurance

James Webb, Hubble space telescopes face reduction in operations

The Scourge of Arial (2001)

A Century of Quantum Mechanics

Tom Holland is So Happy to Be Part of ‘The Odyssey’

Astronomers Detect a Black Hole Merger That’s So Massive It Shouldn’t Exist

The U.S. and EU Are Fighting Over Who Controls Big Tech

Dyson Reveals Futuristic Farming Vision

Best Prime Day Beauty Deals 2025: Hair, Skin, and Dental Care

Scientists Gene Hack Mice So Their Livers Produce Their Own Ozempic-Like Drug

The human harbor: Navigating identity and meaning in the AI age

These are the pros and cons of buying from Apple’s refurbished store: Is it worth it?

Windows 10 KB5062554 update breaks emoji panel search feature

Holographic ribbon aims to oust magnetic tape with 50-year life span and 200TB

Hungary's oldest library fighting to save 100k books from a beetle infestation

Infisical (YC W23) Is Hiring DevRel Engineers

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