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AC isn't blowing cold air? Consider these 5 quick fixes before calling a technician

Arutthaphon Poolsawasd/Getty Images It's always in the middle of a heatwave. Your AC hums to life, but instead of the icy rush you're craving, it pushes out a faint, lukewarm breeze. That's when the dread sets in. Is the unit failing? Am I about to face a massive repair bill? And how am I supposed to sleep in this heavy, suffocating heat? Also: I tested the most popular robot mower on the market - and it was a $5,000 crash out While a truly broken AC unit can indeed be a headache and an expen

Show HN: Monchromate – the best greyscale browser extension

Powerful tools designed to enhance your digital well-being, reduce doomscrolling, and boost productivity through smart greyscale filtering. Smart Scheduler Automatically enable greyscale mode during specific hours. Perfect for reducing evening screen time, maintaining focus during work hours, or preventing late-night doomscrolling. Customizable Intensity Fine-tune the greyscale intensity from 0-100% to find your perfect balance. Research shows greyscale mode reduces screen time by making websi

Show HN: Xorq – open compute catalog for AI

✨ Xorq is an opinionated framework for cataloging, sharing, and shipping multi-engine compute as diffable artifacts for your data in flight. ✨ Xorq helps teams build declarative, reusable ML pipelines across Python and SQL engines like DuckDB, Snowflake, and DataFusion. It offers: 🧠 Multi-engine, declarative expressions using pandas-style syntax and Ibis. using pandas-style syntax and Ibis. 📦 Expression Format for Python in YAML, enabling repeatable compute. for Python in YAML, enabling repe

Startup aims to beam sunlight from space using mirrors

Forward-looking: A California startup is looking to space to solve the limits of ground-based solar power. Reflect Orbital is developing a constellation of satellites with giant Mylar mirrors to beam sunlight back to Earth after dark – an idea that offers bold potential but faces steep engineering hurdles. At the heart of Reflect Orbital's project are its Mylar mirrors. Each satellite will unfurl a 33-by-33-foot sheet of lightweight polyester film known for its durability and reflectivity. The

Photoshop's newest AI tool makes it easy to upscale old photos

Adobe is rolling out a series of new Photoshop tools in beta that it claims will eliminate "tedious steps, reduce friction, and make precision editing faster and more intuitive." The new features include Generative Upscale for desktop and web, allowing you to enhance images by up to 8 megapixels before losing quality. This tool can be used for things such as improving photos you want to print or updating older files. According to Adobe, this feature has been one of the most requested among its

5 reasons why Firefox is still my favorite browser - and deserves more respect

Finally, there's something to be said for supporting the underdog. In the Windows desktop browser arena, Chrome is still the top dog by far (though some of the upcoming AI-based browsers may start nipping at its heels). Edge is in second place. That puts Firefox in third. But I think the browser should be defined by much more than its third-place status. Unlike Google and Microsoft, which are major corporate giants, the Mozilla Foundation is a nonprofit organization with a strong bent toward o

Rotring 600 Ballpoint Pen

The Rotring 600 ballpoint pen is the ballpoint variant of the classic Rotring 600. It takes a standard Parker-style refill that extends with a clicker mechanism. The Rotring 600 is pretty much a timeless classic among precision instruments, and its ballpoint variant stays true to the design. A look at the pen, deconstructed The Rotring 600 ballpoint features an all-metal body. It feels very solid to hold and seems to be pretty reliable. The clicking mechanism is crisp and satisfying to operate

The first company to complete a fully successful lunar landing is going public

Firefly Aerospace seeks to raise more than $600 million through a public stock offering, an arrangement that would boost the company's market valuation to near $5.5 billion, according to a document filed with the SEC on Monday. The launch of Firefly's Initial Public Offering (IPO) comes as the company works to build on a historic success in March, when Firefly's Blue Ghost lander touched down on the surface of the Moon. Firefly plans to sell 16.2 million shares of common stock, at a price of be

Firefly Aerospace sets IPO range that would value rocket maker at $5.5 billion

Firefly Aerospace CEO Jason Kim sits for an interview at the Firefly Aerospace mission operations center in Leander, Texas, on July 9, 2025. Firefly Aerospace will price shares at $35 to $39 each in its upcoming initial public offering, a deal that would value the rocket maker at about $5.5 billion. The Texas-based space company said in an updated prospectus Monday that it's planning to sell about 16.2 million shares. The offering could raise up to $631.8 million. Earlier this month, Firefly

Should you buy a refurbished iPad? I tried one from Back Market and here's my verdict

Maria Diaz/ZDNET I'm no stranger to refurbished products. While buying refurbished or renewed isn't always my first go-to, I did purchase a refurbished 2019 Apple iMac in 2020 that still gets daily use. Buying refurbished, especially with a warranty, is a great way to save money. It's like buying a used car or secondhand furniture; you may not know the whole history, but whether it's worth the risk depends on the buyer. I swapped my iPad Air for a refurbished 10th-generation iPad from Back Mar

Show HN: Auto Favicon MCP Server

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AI referrals to top websites were up 357% year-over-year in June, reaching 1.13B

AI referrals to websites still have a way to go to catch up to the traffic that Google Search provides, but they’re growing quickly. According to new data from market intelligence provider Similarweb, AI platforms in June generated over 1.13 billion referrals to the top 1,000 websites globally, a figure that’s up 357% since June 2024. However, Google Search still accounts for the majority of traffic to these sites, accounting for 191 billion referrals during the same period of June 2025. One p

Implementing a functional language with graph reduction (2021)

Implementing a Functional Language with Graph Reduction Posted on December 27, 2021 by Thomas Mahler Abstract Implementing a small functional language with a classic combinator based graph-reduction machine in Haskell. The implementation is structured into three parts: A λ-calculus parser from A Combinatory Compiler which was extended to cover a tiny functional language based on the untyped λ-calculus. A compiler from λ-calculus to combinatory logic combinators (S,K,I,B,C and Y) which i

Implementing a Functional Language with Graph Reduction

Implementing a Functional Language with Graph Reduction Posted on December 27, 2021 by Thomas Mahler Abstract Implementing a small functional language with a classic combinator based graph-reduction machine in Haskell. The implementation is structured into three parts: A λ-calculus parser from A Combinatory Compiler which was extended to cover a tiny functional language based on the untyped λ-calculus. A compiler from λ-calculus to combinatory logic combinators (S,K,I,B,C and Y) which i

The FastLanes File Format [pdf]

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Firefox Money: Investigating the Finances of Mozilla

Firefox Money: Investigating the bizarre finances of Mozilla Payments to nonexistent companies? Funding politics? Reliance on a single customer? And that's just for starters. This article was originally published in December of 2022, exclusively for subscribers to The Lunduke Journal. It is being re-published now -- free for all -- as the importance of this topic (and the bizarre questions surrounding Mozilla) continues to grow. Mozilla, the Foundation behind the Firefox web browser, is absol

Show HN: Llm-benchmark – Benchmarks LLM-optimized code across multiple providers

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How to Firefox

Chrome finally pulled the trigger on the web’s best ad-blocker, uBlock Origin. Now that Chrome has hobbled uBO, Firefox—my beloved— is surging again. I want to do my part to convince you to switch to Firefox and show you how I use it. Why Firefox Let’s get through the important talking points, in case you need a quick copy paste to convince a friend. 100% open-source Un-enshittify the web Android users rejoice Customize to your heart’s content 100% open-source This section can be quick. H

The Fundamentals of Asyncio

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Show HN: I built an AI agent that helps me invest

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How to handle people dismissing io_uring as insecure? (2024)

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Subreply – An open source text-only social network

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How to handle people dismissing io_uring as insecure?

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Subreply – an open source text-only social network

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Delaunay Mesh Generation (2012)

Delaunay Mesh Generation Our book is a thorough guide to Delaunay refinement algorithms that are mathematically guaranteed to generate meshes with high quality, including triangular meshes in the plane, tetrahedral volume meshes, and triangular surface meshes embedded in three dimensions. It is also the most complete guide available to Delaunay triangulations and algorithms for constructing them. We have designed the book for two audiences: researchers, especially graduate students, and engin

Adobe's AI Videos Get Audio: Is It Better Than Google's Veo 3?

New Adobe Firefly video updates are here to bring your AI-generated videos to the next level and to potentially keep the company competitive in the crowded AI market. You'll be able to add sound effects to your Firefly AI videos, thanks to a beta release of a new AI tool rolling out now, the company announced Thursday. It's the second major tech company to release such capabilities, following Google's Veo 3 launch in May. There are also a couple of other changes coming to Firefly video, includi

Adobe Firefly can now generate sound effects from your audio cues

Since rolling out the redesign of its Firefly app in April, Adobe has been releasing major updates for the generative AI hub at a near monthly clip. Today, the company is introducing a handful of new features to assist those who use Firefly's video capabilities. To start, Adobe is making it easier to add sound effects to AI-generated clips. Right now, the majority of video models create footage without any accompanying audio. Adobe is addressing this with a nifty little feature that allows user

Adobe Firefly can now generate AI sound effects for videos - and I'm seriously impressed

Adobe / Elyse Betters Picaro / ZDNET Just a year and a half ago, the latest and greatest of Adobe's Firefly generative AI offerings involved producing high-quality images from text with customization options, such as reference images. Since then, Adobe has pivoted into text-to-video generation and is now adding a slew of features to make it even more competitive. Also: Forget Sora: Adobe launches 'commercially safe' AI video generator. How to try it On Thursday, Adobe released a series of upg

Adobe’s new AI tool turns silly noises into realistic audio effects

Adobe is launching new generative AI filmmaking tools that provide fun ways to create sound effects and control generated video outputs. Alongside the familiar text prompts that typically allow you to describe what Adobe’s Firefly AI models should make or edit, users can now use onomatopoeia-like voice recordings to generate custom sounds, and use reference footage to guide the movements in Firefly-generated videos. The Generate Sound Effects tool that’s launching in beta on the Firefly app can

iPhone 17 Pro could get exclusive new anti-reflective display

Apple’s iPhone 17 line will be here soon, and today a rumor indicates the 17 Pro and Pro Max could get an exclusive anti-reflective display feature. Here are the details. Rumored anti-reflective display might come to iPhone 17 Pro after all Juli Clover writes at MacRumors: A reliable source that spoke to MacRumors said Apple suppliers have been able to achieve a high enough yield on the anti-reflective glass to support mass production. The ‌iPhone 17 Pro‌ and Pro Max will get the new display