QuadRF can spot drones and see WiFi through my wall

241 speckx 2026-07-10 16:23:04 UTC jeffgeerling.com Qwen Share 86

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.

GPT-5.6 Sol Ultra produces proof of the Cycle Double Cover Conjecture [pdf]

67 scrlk 2026-07-10 18:30:04 UTC cdn.openai.com Qwen Share 20

The paper proves the Cycle Double Cover Conjecture, asserting every bridgeless graph has a cycle cover where each edge is in exactly two cycles. The proof leverages cubic graphs, Γ-flows, and linear algebra to construct the cover, extending prior results on 8-flows and 3-edge-colorings.

Snails' Teeth Beats Spider Silk as Nature's Strongest Material (2015)

86 simonebrunozzi 2026-07-10 17:23:04 UTC smithsonianmag.com Qwen Share 54

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.

The tech of 'Terminator 2' – an oral history (2017)

78 markus_zhang 2026-07-10 17:23:04 UTC vfxblog.com Qwen Share 36

In 1991, ILM pioneered CGI tools like 'Make Sticky' and 'Body Sock' to create Terminator 2's liquid metal T-1000, overcoming limited resources and nascent tech. Artists and developers collaborated intensively, blending innovation with practical problem-solving, cementing the film's legacy as a VFX milestone.

How the Terrorist Group Boko Haram Uses Frontier AI

14 imustachyou 2026-07-10 18:50:04 UTC casp.ac Qwen Share 3

Terrorists like Boko Haram use AI tools (ChatGPT, Claude, etc.) for attack planning, explosives, and operations via specialized units and transnational training, aided by Islamic State. This systematic AI adoption, surpassing prior estimates, highlights urgent policy and security concerns.

War Atlas: An interactive cartography of every named war in human history

27 NaOH 2026-07-10 18:23:04 UTC waratlas.org Full Share 9

An interactive cartography of 10,584 recorded military conflicts across 5,000 years of human history, with 427 historical empire borders, casualty estimate ranges, and era-by-era timeline navigation.

A Love Letter to Flashcards

93 surprisetalk 2026-07-10 16:23:04 UTC lesleylai.info Qwen Share 51

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.

Late Bronze Age Collapse

254 dmonay 2026-07-10 12:23:04 UTC acoup.blog Qwen Share 164

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.

Combustion Engine Web-Based Simulator

30 mytuny 2026-07-10 17:23:04 UTC combustionlab.net Full Share 10

Crank-angle-resolved combustion engine simulator: build an engine, watch it run, and read real thermodynamics — P–V diagrams, dyno curves, knock prediction and more.

Lost city discovered beneath Egypt's desert with ancient church

101 Bender 2026-07-10 13:23:04 UTC dailymail.com Qwen Share 41

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.

Good Tools Are Invisible

238 theanonymousone 2026-07-10 11:23:04 UTC gingerbill.org Qwen Share 127

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.

Successful Companies Go Blind

136 speckx 2026-07-10 14:23:04 UTC ianreppel.org Qwen Share 52

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.

Write code like a human will maintain it

269 ScottWRobinson 2026-07-10 14:23:04 UTC unstack.io Qwen Share 229

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.

New York City to become first in US to ban deceptive subscription practices

44 randycupertino 2026-07-10 18:27:04 UTC theguardian.com Qwen Share 11

New York City's Mamdani administration bans deceptive subscriptions and junk fees, enforcing fines for hard-to-cancel services and requiring upfront pricing for all charges, targeting housing and consumer markets. The rules aim to combat hidden costs and corporate malpractice, facing industry opposition but backed by consumer advocates.

Show HN: Reviving my 2001 college band with AI

30 jacobgraf 2026-07-10 16:23:04 UTC fadingmaize.com Qwen Share 42

Fading Maize's 2001 original songs, led by Charlie Saponara and Brad Mott, are revived in 2026 via AI-assisted production, with Jacob Graf managing the project, preserving archives, and upholding principles like consent and authorship. The revival blends original recordings with reimagined versions, maintaining Charlie's creative control and transparently crediting all contributions.

Hands-On with the AMD Ryzen AI Halo

23 bdcravens 2026-07-10 16:23:04 UTC microcenter.com Qwen Share 26

The AMD Ryzen AI Halo is a compact desktop with 128GB unified memory and a Ryzen AI Max+ 395 chip, enabling local AI model execution to cut cloud costs. It efficiently runs large LLMs and image generation tasks, offering a server-like setup for offline AI workflows.

Computation as a Universal and Fundamental Concept

39 simonpure 2026-07-10 16:23:04 UTC ergo.org Qwen Share 37

Tim Roughgarden explores computational limits, starting with Turing's 1936 proof that some problems (like the halting problem) are unsolvable by algorithms. He then examines NP-completeness, showing that many problems resist efficient solutions, leading to the unresolved P vs NP question with implications for cryptography and AI.

Ask HN: Are systems ready for the first negative leap second?

13 Asmod4n 2026-07-10 17:23:04 UTC news.ycombinator.com Qwen Share 16

Systems struggle with leap seconds, especially negative ones, due to unpredictable timing and legacy issues; debates persist over syncing to Earth's orbit, with smear methods and NTP challenges complicating accuracy for critical infrastructure.

The mathematical secrets of Barcelona's Sagrada Familia

99 Gedxx 2026-07-10 11:23:04 UTC mappingignorance.org Qwen Share 26

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.

In Emacs, Everything Looks Like a Service

145 kickingvegas 2026-07-10 08:23:04 UTC yummymelon.com Qwen Share 82

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.

Laylo (YC S20) Is Hiring a Head of Finance

0 2026-07-10 12:23:04 UTC ycombinator.com Qwen Share

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.

Alternate Clock Designs and Time Systems

54 ethanpil 2026-07-10 15:23:04 UTC serialc.github.io Qwen Share 32

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.

Anyone else get a vague GitHub shakedown notice?

44 jjgreen 2026-07-10 17:23:04 UTC lists.osgeo.org Qwen Share 38

Greg received a GitHub billing email for Code Quality despite no paid plan, having left orgs, and no sponsorship, questioning if QGIS activity triggered it and if others faced similar unexpected charges. Concerns arise over potential billing errors or scams.

The Annotated JEPA

38 surprisetalk 2026-07-10 14:23:04 UTC elonlit.com Qwen Share 6

This post provides a step-by-step guide to implementing Joint Embedding Predictive Architectures (JEPAs), Yann LeCun's self-supervised learning framework that predicts latent representations instead of pixels, focusing on image (I-JEPA) and video (V-JEPA) models. It emphasizes using exponential moving average (EMA) for stable training, structured masking strategies, and predictor networks to ...

Show HN: Reverse-engineering web apps into agent tools

54 pancomplex 2026-07-10 09:23:04 UTC news.ycombinator.com Qwen Share 21

A browser-based agent auto-generates and updates API tools for AI integration in authenticated apps, bypassing complex APIs and security hurdles without code. It creates reusable "recipes" from app interactions, enabling direct actions like user invitations, though varying standards and edge cases like GraphQL pose challenges.

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

38 Uptrenda 2026-07-10 13:23:04 UTC github.com/robertsdotpm Qwen Share 15

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.

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

218 jeroenhd 2026-07-10 11:23:04 UTC ec.europa.eu Llama Share 148

Servers are temporarily unavailable, please try again later. We apologize for the inconvenience caused.

How RCA Victor sold Sound Service to classrooms in 1939

17 pncnmnp 2026-07-10 14:23:04 UTC pncnmnp.github.io Qwen Share 5

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.

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

182 tosh 2026-07-10 03:23:04 UTC macrumors.com Qwen Share 262

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.

Interview with Mitchell Hashimoto about Ghostty and Zig

362 veqq 2026-07-09 21:23:04 UTC alexalejandre.com Qwen Share 203

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 ...