RuBee

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RuBee is a unique wireless protocol used for asset tracking, particularly in secure facilities, due to its robustness and short range. It was developed by Visible Assets Inc. for applications like tracking firearms and has been used by the US military and Department of Energy.

Fran Sans – font inspired by San Francisco light rail displays

The article is about Fran Sans, a display font inspired by San Francisco's light rail vehicle destination displays. The font's creator, Emily Sneddon, aimed to capture the unique charm and utility of the original displays.

Disney Lost Roger Rabbit

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Disney's failure to make sequels to Who Framed Roger Rabbit is a nightmare scenario for creators, but the 1976 Copyright Act's Termination of Transfer provision can rescue them. This provision allows creators to cancel licenses and regain rights after 35 years, giving them bargaining power against media companies.

We stopped roadmap work for a week and fixed bugs

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The author's company has a quarterly "fixit" week where 40 software engineers stop regular work to fix small bugs and improve developer productivity. This week-long event boosts team spirit and product quality.

Ask HN: Hearing aid wearers, what's hot?

You're looking for a new hearing aid to replace your Phonak Audeo 90's. I'm a summarizer, not a personal user, but I can suggest popular options like Phonak Marvel or Oticon Opn, which offer good sound quality and noise reduction features.

Lambda Calculus – Animated Beta Reduction of Lambda Diagrams

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Lambda calculus is a minimal Turing-complete language with functions as its only objects, allowing for beta reduction and expression evaluation. It can represent true and false, natural numbers, and arithmetic operations using selector functions and combinators.

The Rust Performance Book (2020)

First published in November 2020 Written by Nicholas Nethercote and others

µcad: New open source programming language that can generate 2D sketches and 3D

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Japan's gamble to turn island of Hokkaido into global chip hub

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Japan is investing billions to turn Hokkaido into a global hub for advanced semiconductors, aiming to reboot the country's chip-making capabilities. Rapidus, a government-backed company, is building Japan's first cutting-edge chip foundry in Hokkaido, with a goal to mass produce 2nm chips by 2027.

Native Secure Enclave backed SSH keys on macOS

New magnetic component discovered in the Faraday effect after nearly 2 centuries

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Show HN: Stun LLMs with thousands of invisible Unicode characters

Result: Doesn't understand gibberified text - responds with confusion or completely ignores the invisible characters. See ChatGPT → Result: Completely bewildered by gibberified text - has no idea what's happening with the invisible characters. See Grok →

Build desktop applications using Go and Web Technologies

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Wails is a tool that bundles Go code and a web frontend into a single binary, making it easy to create lightweight desktop applications. It offers native elements and is a lightweight alternative to Electron.

Breakthrough in antimatter production

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Researchers at CERN's ALPHA experiment have developed a new cooling technique to produce antihydrogen atoms eight times faster. This technique allows for the production of over 15,000 antihydrogen atoms in hours, enabling more precise measurements of atomic antimatter.

Building the largest known Kubernetes cluster, with 130k nodes

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At Google Cloud, we’re constantly pushing the scalability of Google Kubernetes Engine (GKE) so that it can keep up with increasingly demanding workloads — especially AI. GKE already supports massive 65,000-node clusters, and at KubeCon, we shared that we successfully ran a 130,000-node cluster in experimental mode — twice the number of nodes compared to the officially supported and tested ...

Having Fun with Complex Numbers

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A book called Discovering Imaginary Numbers in Everyday Life makes complex math fun and accessible to all ages by using motion and big-picture thinking. It redevelops complex number theory from scratch, making it easy to understand and master.

Set theory with types

NG de Bruijn discussed set theory and type theory in his 1973 paper, questioning the idea that everything is a set. He proposed a typed set theory that excludes x in x and is simpler and more intuitive than AUTOMATH.

Calculus for Mathematicians, Computer Scientists, and Physicists [pdf]

Calculus is a branch of mathematics that has been refined over centuries to solve various problems in physics and other fields. It has a theoretical foundation that allows us to speak of the infinitely large and infinitely small, and is guided by aesthetics and logical consistency.

Moss survived outside of the International Space Station for 9 months

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Moss spores survived 9 months in space with over 80% reproducing upon return to Earth. The discovery improves understanding of plant survival in extreme conditions and may aid in building ecosystems beyond our planet.

Hyperoptic: IPv6 and Out-of-Order Packets

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User had issues with IPv6 connectivity on RouterPi due to Hyperoptic's upstream router not responding to Router Solicitation packets. Changing WAN interface MAC address to any other valid address triggered an unsolicited Router Advertisement, fixing the issue.

The Cloudflare outage might be a good thing

Passing the Torch – My Last Root DNSSEC KSK Ceremony as Crypto Officer 4

The user was a Crypto Officer for ICANN's DNSSEC Root signing ceremonies for 15 years, participating in the development of trust and transparency in the system. They passed the torch to Lodrina Cherne, a security researcher and educator, after a 5-year commitment turned into a 15-year tenure.

Pixar: The Early Days

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Steve Jobs discusses Pixar's success and business model in a 1996 interview, revealing how it empowers artists and engineers. He reflects on lessons learned from Disney and how they shaped his approach to leading Apple.

Show HN: I wrote a minimal memory allocator in C

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This project implements a memory allocator using sbrk and mmap with optimizations like block splitting and coalescing, but it's not thread-safe. It's designed for POSIX-compliant systems like Linux and macOS.

Show HN: Syd – An offline-first, AI-augmented workstation for blue teams

Syd is a secure, offline AI-powered tool for cybersecurity operations, integrating with various tools for offensive and defensive capabilities. It provides instant access to exploit intelligence and actionable insights from raw tool output.

Liva AI (YC S25) Is Hiring

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Liva AI is hiring a community growth intern to manage online communities like Discord servers or subreddits. The ideal candidate has experience growing and managing large online communities with fast response times and flexible schedules.

A time-travelling door bug in Half Life 2

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A developer at Valve discovered a long-standing bug in Half Life 2 where a door wouldn't open due to a collision with a guard's toe, which was caused by differences in floating point precision between the original 8087 math and the newer SSE instruction set. The bug was present in the original game and was only fixed when the developers moved the guard back a millimeter, highlighting the ...

Ego, empathy, and humility at work

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The article discusses how ego can hinder developers and technical leaders, and how empathy and humility can help counteract it. Practicing empathy and humility can lead to better collaboration and problem-solving.

Band of Holes

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The Band of Holes, also known as Monte Sierpe, is a series of 5,000-6,000 man-sized holes in Peru's Pisco Valley. They were initially thought to be graves or storage places, but recent theories suggest they were used for storage or as a marketplace and accounting device for the Inca Empire.

A desktop app for isolated, parallel agentic development

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Mux is a powerful AI tool with features like Plan/Exec mode and vim inputs, but it's still in a Preview state with bugs and performance issues. It's free software under the GNU Affero General Public License, suitable for complex issues and development.