QuadRF can spot drones and see WiFi through my wall

https://www.jeffgeerling.com/blog/2026/quadrf-can-spot-drones-and-see-wifi-through-my-wall/quadrf-antennna-array.jpeg
The QuadRF is a Raspberry Pi-powered phased-array radio enabling advanced signal processing, WiFi analysis, and RF visualization, with potential for Moon-scale radio experiments. Despite a rough UI, its MIPI-based high-speed data transfer and modular design showcase impressive performance for SDR applications.

Late Bronze Age Collapse

https://i0.wp.com/acoup.blog/wp-content/uploads/2026/01/image-2.png?resize=1024%2C736&ssl=1
The Late Bronze Age Collapse (c. 1220–1170 BC) saw interconnected states in the Eastern Mediterranean and Middle East decline or collapse, marked by site destructions and political fragmentation. Causes remain debated but likely include climate shifts, warfare, and economic strain, with uneven regional impacts.

A Love Letter to Flashcards

https://lesleylai.info/_astro/rotation_as_two_reflection.DUOfpCFn_Z2wydEN.webp
Initially dismissing flashcards for deep learning, the author adopted spaced repetition via Anki, creating personalized cards for concepts and insights rather than rote facts. This approach enhanced long-term retention and enabled resuming learning after breaks.

Snails' Teeth Beats Spider Silk as Nature's Strongest Material

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Marine snails' teeth, composed of goethite nanofibers and protein, are Earth's strongest natural material, exceeding spider silk and Kevlar. Though outmatched by graphene, they rival top carbon fibers, while rare materials like lonsdaleite surpass diamond's hardness.

Lost city discovered beneath Egypt's desert with ancient church

https://i.dailymail.com/1s/2026/07/06/11/109825519-15956159-image-a-3_1783334884765.jpg
A 1,600-year-old Byzantine city with churches, homes, and 200 inscribed pottery fragments was discovered in Egypt's Western Desert, offering insights into daily life. Separate finds include ancient tombs with a 'golden tongue' practice and the Great Pyramid's earthquake-resistant design revealed.

Write code like a human will maintain it

Relying on LLMs to generate repetitive code risks perpetuating poor practices, as duplicated logic trains the model to mimic your codebase's patterns. Over time, this creates a self-reinforcing cycle where shortcuts become entrenched, undermining maintainability and requiring manual intervention to correct.

Good Tools Are Invisible

A good tool should be invisible, not celebrated for complexity or puzzles. Avoid reframing flaws as fun or identity; prioritize productivity over tribalism and honest evaluation.

GPT-5.6

https://images.ctfassets.net/kftzwdyauwt9/3oH3WSMMfaXAjUMh6DcIue/f594bb00b0711acda032f16240f2fe32/input-slide.png?w=3840&q=90&fm=webp
OpenAI launches GPT-5.6 (Sol, Terra, Luna), with Sol leading in coding, cybersecurity, and science efficiency, outperforming prior models and competitors. Enhanced ultra mode, cost-effective tiers, and robust safeguards boost performance-per-dollar and safety for diverse professional tasks.

Successful Companies Go Blind

https://ianreppel.org/images/2026-07-09-cavefish.jpeg
Mexican cavefish retain eye genes despite blindness, mirroring companies that lose competence as stable environments suppress innovation, prioritizing comfort over skill. Surviving in predictable conditions, they adapt to internal pressures, mistaking stagnation for loyalty until external change reactivates dormant traits.

The mathematical secrets of Barcelona's Sagrada Familia

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Antoni Gaudí's Sagrada Família, celebrated in 2026 for its 100th anniversary since his death, integrates mathematical principles like the 7.5m module and ratios of 12, creating harmonious proportions. Its design features symbolic elements, polyhedrons, and structural innovations, reflecting both architectural genius and religious symbolism.

Show HN: Getting GLM 5.2 running on my slow computer

https://opengraph.githubassets.com/f290abe64fa51202c62bf68158b6ad46802a289048724269e005ecddce3d7e65/JustVugg/colibri
colibrì runs GLM-5.2 (744B MoE) on 25 GB RAM via int4 quantization, disk-streamed experts, and C-based zero-dependency engine, achieving lossless inference with speculative decoding and adaptive caching. It leverages AVX2, MTP heads, and batched expert reads, but requires NVMe SSDs and careful hardware management due to disk I/O and wear risks.

In Emacs, Everything Looks Like a Service

http://yummymelon.com/devnull/images/ieells/emacs-os-relationship.svg
Emacs functions as an OS-like environment by orchestrating applications and services above the kernel, enabling users to manage computing tasks within its ecosystem. Through Elisp and libraries, it treats external utilities as services, allowing seamless client-server interactions and improvising workflows.

Train sim created by just one person is being called the best ever made

https://kotaku.com/app/uploads/2026/05/06-running-train.jpg
Running Train, a hyper-realistic train sim by solo dev Novatetsu Games, blends fictional Japanese landscapes with intricate details like logical powerlines and weather effects, offering immersive gameplay through precise controls or free camera exploration. Praised for its stunning realism and dedication to detail, it’s hailed as a top-tier simulation with plans for expanded routes and features.

Alternate Clock Designs and Time Systems

The article critiques the traditional 24-hour time system's inconsistency and explores alternative metric-based time designs, like decimal or hexadecimal formats, for simpler calculations and readability, while acknowledging challenges in adoption and accuracy. It invites suggestions for custom time systems, emphasizing flexibility in reimagining how we measure and display time.

Computation as a Universal and Fundamental Concept

https://ergo.org/assets/computation-as-a-fundamental-and-universal-concept-speaker.webp
Tim Roughgarden begins with a deceptively simple question: is there anything computers cannot do? To answer it, he takes us back to 1936, when Alan Turing, a decade before actual computers existed, laid the foundations of computer science as a byproduct of solving an obscure mathematical problem. Turing's paper introduced the theoretical machine that bears his name and proved something ...

Laylo (YC S20) Is Hiring a Head of Finance

https://bookface-images.s3.amazonaws.com/small_logos/bb78f80434f450bb2cb261fa10cb242ca6510307.png
Laylo, a SaaS platform for creators to monetize fan relationships, seeks its first finance hire to build financial infrastructure, optimize costs, and drive strategic decisions. The role involves budgeting, pricing strategy, vendor negotiations, and scaling systems for a fast-growing, profitable company with a clear CFO path.

EU Commission: addictive design Instagram and Facebook in breach of the DSA

https://ec.europa.eu/avservices/avs/files/video6/repository/prod/photo/store//06/98/22/P-069822_00-01_03-MED-884521.jpg
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How RCA Victor sold Sound Service to classrooms in 1939

https://pncnmnp.github.io/blogs/pics/rca-victor/poster.jpeg
The blog post explores RCA Victor's 1939 "Sound Service for Schools" radio programs, highlighting their merger during the Great Depression and parallels to modern tech in education. It details how RCA leveraged music and audio tools to modernize classrooms, contrasting with today's digital learning innovations.

Show HN: Runloom – Go-style coroutines for Python free-threaded

https://opengraph.githubassets.com/9255cdda878eef21d2f8c335a1d1c544c836eb3061b3ac1a5403adee65686ae8/robertsdotpm/runloom
runloom enables Go-style stackful coroutines in Python, using a work-stealing scheduler and netpoll for I/O, allowing millions of coroutines across cores in free-threaded CPython 3.14t (GIL off). It supports blocking code via monkey patching and matches Go's concurrency performance, though with higher memory per coroutine.

Apple Silicon Exec Explains Mac Mini AI Demand and On-Device Future

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Apple's Mac mini and Mac Studio are favored for AI agents due to Apple silicon's integrated chip design, emphasizing whole-chip efficiency and local processing over cloud reliance. Critics debate practicality and costs, but Apple's proactive neural engine integration since 2017 and current memory shortages highlight both strategic foresight and industry-wide challenges.

Ditching Vagrant: VMs with KVM and Virsh on Debian

The author transitions from Vagrant to KVM/libvirt for streamlined VM management, leveraging native Linux tools and preseeding with virt-install for automation, reducing complexity and abstraction layers. They highlight benefits like deterministic setups and improved efficiency over Vagrant's additional software overhead.

Interview with Mitchell Hashimoto about Ghostty and Zig

Alex Alejandre discusses transitioning from software engineering to building Ghostty, a feature-rich terminal emulator addressing ecosystem gaps with protocols like n-screen and button APIs, emphasizing open-source principles and low-level systems understanding. He critiques modern tech complexity, advocates for Zig's potential, and stresses open-source maintainers' autonomy while balancing ...

AI-generated videos to maximally drive a target brain region

https://nevo-project.epfl.ch/paper/step_idea.webp
NEvo uses a digital twin and genetic algorithm to evolve videos maximizing brain region activation. Dynamic videos outperform static ones, highlighting regions' preference for motion and social features.

The Annotated JEPA

https://elonlit.com/images/flowers3.webp
This post is a step-by-step, annotated, from-scratch walkthrough of Joint Embedding Predictive Architectures, or JEPAs. The goal is to do for JEPA what The Annotated Transformer did for the Transformer: build the full object, explain every moving part, and end with a working training loop. JEPA is Yann LeCun's proposed answer to a fundamental question in self-supervised learning: how do ...

Hy3

https://hy-model-ap-prod-1258344703.cos.ap-guangzhou.myqcloud.com/llm-blog/default/9a5ea02f/2026070600034520_9c12678af0bd5113cede8fcc8c6c8960.png?q-sign-algorithm=sha1&q-ak=AKIDRl074nOsGdJ9zjMsCRWP3ShmgS3VtX4S&q-sign-time=1783267428;2098627428&q-key-time=1783267428;2098627428&q-header-list=&q-url-param-list=&q-signature=c1ca8f65b14968b3ed6506490d90168973282b89
Hy3 outperforms similar-size models and rivals larger open-source models in productivity tasks, achieving 2.67/4 in expert evaluations. It addresses stability, hallucination, and context retention issues, is open-sourced under Apache 2.0, and reduces API costs.

ActivityPub over ATProto

https://berjon.com/ap-at/chimera.jpg
The article critiques social media's divisive "factional" dynamics, proposing integration of AT Protocol and ActivityPub to break silos. It argues combining their strengths—user agency and web-native design—could create a more open, interoperable social web.

EU Parliament greenlights Chat Control 1.0

https://www.patrick-breyer.de/wp-content/uploads/2023/07/logo_regular_vertical.png
The European Parliament allowed the interim "Chat Control 1.0" regulation to pass, permitting mass scanning of private communications until 2028. Negotiations for a permanent regulation will resume in September, with the EU Parliament pushing for targeted detection orders and stricter security standards.

Ancient Coins: What About Spartan Coins?

https://coinweek.com/wp-content/uploads/2018/09/spartan_coin.jpg
Spartans avoided wealth accumulation, using iron money and issuing rare coins post-power decline, notably under kings Areus and Cleomenes. Their coinage, influenced by Macedonian/Roman designs, remains scarce and valuable, reflecting Sparta's unique economic and political history.

Unified Memory, Explained: Why Mini PCs Can Run 70B Models a Big GPU Can't

https://vettedconsumer.com/content/images/2026/07/minipc-card.png
Mini PCs with unified memory (e.g., AMD Strix Halo) can host large 70B LLMs due to 128GB shared memory, but generate text slowly (4-6 tok/s) due to low bandwidth (256GB/s), unlike GPUs (e.g., RTX 5090) with high bandwidth (1,792GB/s) but limited 32GB VRAM. Their strength is capacity, not speed, excelling when models exceed GPU VRAM limits despite slower inference.

The glass backbone: Why the Army's logistics will break in the next war

https://mwi.westpoint.edu/wp-content/uploads/2026/06/9522808.jpg?w=1200&h=640&crop=1
The US Army's efficiency-driven sustainment model, optimized for permissive environments, is ill-suited for modern multidomain warfare, where survival under persistent attack determines victory. Historical and contemporary conflicts show that centralized logistics collapse under attrition, demanding decentralized, survivable sustainment networks to match industrial-scale combat endurance.