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How The Heck Does GPS Work? (An Interactive Exploration)

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✨ Check out this awesome post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: How geometry, stopwatches, and Einstein's theories work together to make GPS possible.Shri KhalpadaApril 11, 2026 Part of How The Heck?, a series of interactive explanations of everyday technology. If you like these, you can follow the author or buy him a coffee! If you're like me, you might be entirely dependent on GPS to navigate the world. At some point, you may have caught yourself wondering during those panicked moments when an exit is coming up and your phone is recalibrating: how does my…

The former Pinterest team is redesigning email with Extra — and it’s actually pretty good

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🔥 Discover this insightful post from TechCrunch 📖 📂 **Category**: Apps,Startups,email,extra email,gmail 💡 **What You’ll Learn**: When was the last time you got really excited about email? If you're older, it probably dates back to 2004, when Gmail was rolling out its first experimental invitations. If you were younger, it probably would never happen. Over the years, many startups have tried and failed to reinvent it, with the most successful companies simply shoving new functionality — like improved workflows or AI agents — into the same basic inbox. Today, a new company created by a team of former Pinterest designers…

What Async Promised and What it Delivered — Causality

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🔥 Discover this awesome post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: OS threads are expensive: an operating system thread typically reserves a megabyte of stack space and takes roughly a millisecond to create. Context switches happen in kernel space and burn CPU cycles. A server handling thousands of concurrent connections and dedicating one thread per connection means thousands of threads each consuming memory and competing for scheduling. The system spends time managing threads that could be better spent doing useful work. This is the C10K problem, named by Dan Kegel in 1999. If you were building…

Preserved for billions of years, organic compounds found on Mars

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🔥 Read this awesome post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: The findings suggest Mars can preserve the kind of molecules that could point to proof that life once existed on the planet.(CN) — NASA’s Curiosity rover has found a new set of organic molecules on Mars, including compounds scientists say are linked to the building blocks of life.The discovery comes from a chemical experiment carried out for the first time on another planet and suggests Mars can preserve complex organic material for billions of years.Scientists say the rover identified more than 20 organic compounds in…

AI Dungeon maker Latitude has unveiled Voyage, a platform for creating AI-powered RPGs

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🔥 Explore this awesome post from TechCrunch 📖 📂 **Category**: AI,Gaming,Startups,ai gaming,Generative AI,latitude,RPG ✅ **What You’ll Learn**: If you've ever played an RPG, you know how much fun it is to create your character in any way you choose and embark on epic adventures. Now, imagine an AI-powered text-based RPG, where every interaction with a non-player character (NPC) is completely unscripted. Latitude, the startup known for its open-ended text adventure games featuring AI-generated “endless stories,” recently unveiled its new platform that allows users to step into the role of game designers. The AI-based RPG platform, called Voyage, allows players to…

Sure, xor’ing a register with itself is the idiom for zeroing it out, but why not sub?

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🔥 Explore this awesome post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: Matt Godbolt, probably best known for being the proprietor of Compiler Explorer, wrote a brief article on why x86 compilers love the xor eax, eax instruction. The answer is that it is the most compact way to set a register to zero on x86. In particular, it is several bytes shorter than the more obvious mov eax, 0 since it avoids having to encode the four-byte constant. The x86 architecture does not have a dedicated zero register, so if you need to zero out a…

The report says Clarifai deletes 3 million photos that OkCupid submitted to train its facial recognition AI

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🚀 Explore this insightful post from TechCrunch 📖 📂 **Category**: AI,Apps,OKCupid,facial recognition,Match Group,Clarifai,AI training 📌 **What You’ll Learn**: AI platform Clarifai has deleted 3 million photos it says it obtained from OkCupid to train its facial recognition AI, according to Reuters. The company also deleted any models trained using that data. According to the FTC investigation, Clarifai asked OkCupid — whose executives invested in the company — to share data in 2014. Reports say the dating app then provided these user-uploaded photos, along with other demographic and location data. According to OkCupid's privacy policies, this behavior should have been prohibited.…

justrach/kuri: Browser automation and web crawling for AI agents. Zig-native, token-efficient CDP snapshots, HAR recording, and a standalone fetcher. · GitHub

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💥 Explore this insightful post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: Browser automation & web crawling for AI agents. Written in Zig. Zero Node.js. CDP automation · A11y snapshots · HAR recording · Standalone fetcher · Interactive terminal browser · Agentic CLI · Security testing Quick Start · Benchmarks · kuri-agent · Security Testing · API · Changelog Why teams switch to Kuri: 464 KB binary, ~3 ms cold start. On Google Flights, a full agent loop (go→snap→click→snap→eval) costs 4,110 tokens vs 4,880 for agent-browser — 16% less per cycle, compounding across multi-step tasks. Most browser…

Sam Altman weighs in on the cyber-anthropic model, Mythos: “Fear-Based Marketing”

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🔥 Read this insightful post from TechCrunch 📖 📂 **Category**: AI,Anthropic,In Brief,Mythos,OpenAI,sam altman 📌 **What You’ll Learn**: OpenAI and Anthropic continue to take swipes at each other. This week, during an appearance on the podcast, OpenAI CEO Sam Altman talked about his competitor's new cybersecurity model, suggesting that the company was using fear to make its product seem more impressive than it actually is. Anthropic announced Mythos earlier this month, launching the model to a small group of enterprise customers. The company claimed that Mythos was too powerful to be released to the public for fear that cybercriminals would weaponize…

Things I’ve Learned as a Senior Engineer

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🔥 Read this insightful post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: A few years ago, a data engineer on r/ExperiencedDevs got drunk and wrote down everything he learned in 10 years of engineering. The original account is deleted, but the post captures something real — the kind of honesty you only get after a few glasses of wine. Preserving it here, typos and all.Contains the language you’d expect from someone who opened with ‘I’m drunk’.I’m drunk and I’ll probably regret this, but here’s a drunken rank of things I’ve learned as an engineer for the past…