QuadRF can spot drones and see WiFi through my wall

261 speckx 2026-07-10 16:53:11 UTC jeffgeerling.com Qwen Share 93

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.

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

93 simonebrunozzi 2026-07-10 16:53:11 UTC smithsonianmag.com Qwen Share 62

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)

84 markus_zhang 2026-07-10 16:53:11 UTC vfxblog.com Qwen Share 38

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.

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

38 NaOH 2026-07-10 18:53:11 UTC waratlas.org Full Share 13

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.

How the Terrorist Group Boko Haram Uses Frontier AI

27 imustachyou 2026-07-10 18:53:11 UTC casp.ac Qwen Share 17

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.

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

102 scrlk 2026-07-10 18:53:11 UTC cdn.openai.com Qwen Share 89

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.

Combustion Engine Web-Based Simulator

41 mytuny 2026-07-10 16:53:11 UTC combustionlab.net Full Share 15

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.

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

87 randycupertino 2026-07-10 18:53:11 UTC theguardian.com Qwen Share 27

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.

Late Bronze Age Collapse

257 dmonay 2026-07-10 12:53:11 UTC acoup.blog Qwen Share 167

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

96 surprisetalk 2026-07-10 15:53:11 UTC lesleylai.info Qwen Share 53

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.

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

23 Asmod4n 2026-07-10 17:53:11 UTC news.ycombinator.com Qwen Share 26

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.

Lost city discovered beneath Egypt's desert with ancient church

106 Bender 2026-07-10 12:53:11 UTC dailymail.com Qwen Share 46

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

251 theanonymousone 2026-07-10 10:53:11 UTC gingerbill.org Qwen Share 128

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.

Write code like a human will maintain it

282 ScottWRobinson 2026-07-10 13:53:11 UTC unstack.io Qwen Share 235

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.

Successful Companies Go Blind

143 speckx 2026-07-10 13:53:11 UTC ianreppel.org Qwen Share 53

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.

Show HN: Wyrm – Solve algebra by touch, built on an open-source soundness engine

5 dicroce 2026-07-10 19:00:11 UTC github.com/dicroce Prefix Share 0

An exact, conditionally-sound symbolic algebra engine for building manipulative math interfaces — the kind where users solve equations by dragging terms across the equals sign, tapping a power to expand it, or pulling a shared factor out of two terms. The core invariant: legal moves are possible, illegal moves are impossible. Equations are never validated — they are only ever transformed by ...

Hands-On with the AMD Ryzen AI Halo

28 bdcravens 2026-07-10 16:53:11 UTC microcenter.com Qwen Share 27

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.

Show HN: Reviving my 2001 college band with AI

33 jacobgraf 2026-07-10 16:53:11 UTC fadingmaize.com Qwen Share 44

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.

The mathematical secrets of Barcelona's Sagrada Familia

104 Gedxx 2026-07-10 11:53:11 UTC mappingignorance.org Qwen Share 27

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.

Materials innovation has a scale-up problem, not discovery

4 groznyj 2026-07-10 19:06:11 UTC atomscale.ai Prefix Share 0

In December 1959, Richard Feynman stood before the American Physical Society at Caltech and told a room of physicists there was "plenty of room at the bottom." He was inviting them to join a new mission of exploration: the deliberate control of matter at the atomic scale. Nearly seventy years of world-changing progress followed downstream of that invitation: modern electronics, ...

Alternate Clock Designs and Time Systems

59 ethanpil 2026-07-10 14:53:11 UTC serialc.github.io Qwen Share 35

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.

Laylo (YC S20) Is Hiring a Head of Finance

0 2026-07-10 12:53:11 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.

In Emacs, Everything Looks Like a Service

148 kickingvegas 2026-07-10 08:53:11 UTC yummymelon.com Qwen Share 87

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.

Show HN: Reverse-engineering web apps into agent tools

60 pancomplex 2026-07-10 08:53:11 UTC news.ycombinator.com Qwen Share 22

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.

The Annotated JEPA

40 surprisetalk 2026-07-10 13:53:11 UTC elonlit.com Qwen Share 9

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

40 Uptrenda 2026-07-10 13:53:11 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.

Cpp2Rust: Translates C++ to safe Rust automatically

14 signa11 2026-07-10 16:53:11 UTC github.com/cpp2rust Qwen Share 0

Cpp2Rust automatically translates C++ to safe Rust using clang's AST, generating code with libcc2rs for pointer semantics. It offers an unsafe mode via --model=unsafe and employs Ptr<T> to manage C pointers safely under Rust's borrow checker.

Mayor Mamdani Announces Landmark "Click-to-Cancel" Consumer Protection Rules

6 thisislife2 2026-07-10 19:32:11 UTC nyc.gov Prefix Share 2

NEW YORK – Today, Mayor Zohran Kwame Mamdani and New York City Department of Consumer and Worker Protection (DCWP) Commissioner Samuel A.A. Levine announced sweeping new consumer protections that will crack down on junk fees and subscription traps, making it easier for New Yorkers to know the real price of what they are buying and to stop paying for the services they no longer want. Following ...

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

222 jeroenhd 2026-07-10 11:53:11 UTC ec.europa.eu Llama Share 152

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

183 tosh 2026-07-10 02:53:11 UTC macrumors.com Qwen Share 265

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.