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Traders placed over $1bn in perfectly timed bets on the Iran war. What is going on? | US-Israel war on Iran

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✨ Explore this must-read post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: Sixteen bets made $100,000 accurately predicting the timing of the US airstrikes against Iran on 27 February. Later, a single user would make over $550,000 after betting that Ayatollah Ali Khamenei would topple, just moments before his assassination by Israeli forces. On 7 April, right before Donald Trump announced a temporary ceasefire with Iran, traders bet $950m that oil prices would come down. They did.These bets and other well-timed wagers accurately predicted the precise timing of major developments in the US-Israel war with Iran, creating…

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Amazon is discontinuing Kindle for PC on June 30th

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🔥 Explore this awesome post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: Amazon is letting users know, via a pop-up message when using Kindle for PC, that it will be discontinued on June 30, 2026. When this date comes, the app will no longer work, even if you download it from another website. The company has disclosed to Good e-Reader that Amazon is developing a new Kindle for PC app, but it will only be compatible with Windows 11. This will be an app available only to download from the Microsoft Store. The Kindle for PC app…

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The electromechanical angle computer inside the B-52 bomber’s star tracker

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💥 Check out this trending post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: Before GPS, how did aircraft navigate? One important technique was celestial navigation: navigating from the positions of the stars, planets, or the sun. While celestial navigation is accurate, cannot be jammed, and doesn't require any broadcast infrastructure, it is a difficult and time-consuming process to perform manually. In the early 1960s, an automated system was developed for the B-52 bomber to automatically track stars and compute navigation information. Digital computers weren't suitable at the time, so the star tracking system performed trigonometric calculations with…

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Amazon won’t release Fire Sticks that support sideloading anymore

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💥 Discover this insightful post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: In October, an Amazon representative said the company doesn’t have plans to update current Fire OS devices to Vega, German IT publication Heise Online reported. Fire OS blamed for pirating Before Vega, Amazon’s Fire streaming devices all ran Fire OS, an Android fork based on the Android Open Source Project, which often meant Fire devices ran older Android software. Moving to the Linux-based Vega OS makes it easier for Amazon devices to run more modern software. Vega also gives Amazon more control over how people…

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State of Kdenlive – 2026

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💥 Read this awesome post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: In 2025, the Kdenlive team continued grinding to push the project forward through steady development, collaboration, and community support. Over the past year we’ve found a nice balance between adding new features, bug fixing, polishing the user interface, and improving performance and workflow, with stability taking priority over feature creep.We relaunched the website with a new content management system, refreshed some content and the design, and restored historic content dating back to 2002. We also strengthened upstream collaboration with the MLT developers and contributed several…

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Migrating from DigitalOcean to Hetzner: From $1,432 to $233/month With Zero Downtime :: Isa Yeter

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✨ Check out this insightful post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: A real-world production migration from DigitalOcean to Hetzner dedicated, handling 248 GB of MySQL data across 30 databases, 34 Nginx sites, GitLab EE, Neo4j, and live mobile app traffic — with zero downtime. Why We Migrated⌗ Running a software company in Turkey has become increasingly expensive over the last few years. Skyrocketing inflation and a dramatically weakening Turkish Lira against the US dollar have turned dollar-denominated infrastructure costs into a serious burden. A bill that felt manageable two years ago now hits very differently…

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Why Japan has such good railways

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💥 Read this trending post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: Japan is the land of the train. 28 percent of passenger kilometers in Japan are travelled by rail, more than anywhere else in the developed world. France achieves 10 percent, Germany 6.4 percent, and the United States just 0.25 percent. Travel in Japan is over a hundred times more likely to be by rail than travel in the United States.  Japan’s vast railway network is divided between dozens of companies, nearly all of them private. The largest of these, JR East, carries more passengers than…

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The quiet disappearance of the free-range childhood

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🔥 Explore this trending post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: To Mallerie Shirley and Christopher Pleasants, nothing felt “revolutionary” about the way they were raising their two kids. Then a stranger called child protective services. It started last November in Atlanta. With school closed on Election Day, the couple’s 6-year-old son, Jake (not his real name), wanted to ride his scooter by himself to a nearby playground while Mallerie and Christopher worked their tech jobs from home. They had recently begun allowing Jake to play outside alone, and other kids and a group of parents…

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yapstudios/sfsym: Export Apple SF Symbols as SVG · GitHub

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🔥 Explore this must-read post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: A command-line tool for exporting Apple SF Symbols as SVG, PDF, or PNG. The vector paths come directly from macOS's symbol renderer, so the output is the same geometry the system draws. No Xcode project, no redraw, and no runtime dependency on SF Symbols.app. sfsym export heart.fill -f svg -o heart.svg # 569B -> heart.svg Before you use this Licensing. SF Symbols are Apple property. The SF Symbols License permits their use only in artwork and mockups for apps that run on Apple platforms. sfsym…

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America lost the Mandate of Heaven

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🚀 Explore this must-read post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: What does it mean if a country is winning? I read an article a while back about how, basically because labor unions became too much of a pain to deal with, they were just cut out of the conversation. Everything was outsourced, and now after whining about a $25/hr job not having health insurance, there’s just no more $25 an hour job and nobody to try and bargain with anymore. The chips are made in Taiwan, the clothes are made in Vietnam, the cars are…

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