QuadRF can spot drones and see WiFi through my wall

399 speckx 2026-07-10 16:39:52 UTC jeffgeerling.com Qwen Share 160

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.

Apple sues OpenAI, accuses ex-employees of stealing trade secrets

232 stock_toaster 2026-07-10 21:39:52 UTC 9to5mac.com Qwen Share 117

Apple sues OpenAI for trade secret theft by ex-employees, including Tang Tan and Chang Liu, who allegedly stole confidential data and used it in hiring. The lawsuit highlights over 400 Apple alumni at OpenAI, led by Jony Ive, and claims OpenAI exploited Apple's proprietary info for hardware projects.

Einstein's relativity rules chemical bonds in heavy elements, new research shows

28 hhs 2026-07-10 22:39:52 UTC brown.edu Qwen Share 15

Brown University researchers discovered relativistic effects in heavy elements like bismuth blur sigma/pi bonds in triple bonds, challenging textbook models. Photoelectron spectroscopy revealed hybridized bonds, impacting chemistry education and applications in solar cells and quantum tech.

New York City to to ban deceptive subscription practices

344 randycupertino 2026-07-10 18:39:52 UTC theguardian.com Qwen Share 185

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.

Inference Optimization for MiMo v2.5: Pushing Hybrid SWA Efficiency to the Limit

20 theanonymousone 2026-07-10 21:39:52 UTC mimo.xiaomi.com Qwen Share 5

MiMo-V2.5 uses Hybrid SWA and MoE to cut KVCache by 7x, boosting efficiency in long-context and multimodal tasks. Optimizations like tiered caching, SWA-aware systems, and GCache integration enhance throughput and hit rates, achieving 93%+ server-side efficiency.

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

142 markus_zhang 2026-07-10 17:39:52 UTC vfxblog.com Qwen Share 57

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.

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

289 scrlk 2026-07-10 18:39:52 UTC cdn.openai.com Qwen Share 248

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

96 mytuny 2026-07-10 17:39:52 UTC combustionlab.net Full Share 42

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.

Computation as a universal and fundamental concept

73 simonpure 2026-07-10 15:39:52 UTC ergo.org Qwen Share 64

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.

Late Bronze Age Collapse

306 dmonay 2026-07-10 12:39:52 UTC acoup.blog Qwen Share 215

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.

Moss (YC F25) Is Hiring

0 2026-07-10 21:39:52 UTC ycombinator.com Qwen Share

Moss, a real-time semantic search layer for AI, seeks a Senior/Staff SDK Engineer to optimize cross-platform SDKs for performance, reliability, and seamless integration across diverse environments. The role involves architecting Rust-based SDKs, improving latency, and ensuring consistent developer experiences to enable global AI product deployment.

Good Tools Are Invisible

334 theanonymousone 2026-07-10 10:39:52 UTC gingerbill.org Qwen Share 150

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.

Alternate clock designs and time systems

80 ethanpil 2026-07-10 14:39:52 UTC serialc.github.io Qwen Share 49

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.

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

43 dicroce 2026-07-10 19:39:52 UTC github.com/dicroce Qwen Share 5

wyrm-math is a DOM-free, exact symbolic algebra engine enforcing conditional soundness through rewrite rules, supporting gesture-based equation manipulation with assumptions tracking and solution-preserving transformations. It uses immutable ASTs, bigint rationals, and a derivation tree API for cross-platform math apps, licensed MIT with a sustainable app ecosystem.

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

103 NaOH 2026-07-10 18:39:52 UTC waratlas.org Full Share 45

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.

Snails' teeth beats spider silk as nature's strongest material (2015)

145 simonebrunozzi 2026-07-10 16:39:52 UTC smithsonianmag.com Qwen Share 117

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.

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

45 Asmod4n 2026-07-10 17:39:52 UTC news.ycombinator.com Qwen Share 53

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.

A love letter to flashcards

118 surprisetalk 2026-07-10 15:39:52 UTC lesleylai.info Qwen Share 74

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.

AI 2040: Plan A

105 kschaul 2026-07-10 11:39:52 UTC ai-2040.com Qwen Share 66

Plan A advocates for an international agreement with transparent AI research and global collaboration to safely develop superintelligence, avoiding existential risks. Without such measures, unchecked AI races risk power concentration and catastrophic outcomes, urging immediate governance action.

Lost city discovered beneath Egypt's desert with ancient church

137 Bender 2026-07-10 12:39:52 UTC dailymail.com Qwen Share 68

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.

After 7 years in production, Scarf has reluctantly moved away from Haskell

59 aviaviavi 2026-07-10 14:39:52 UTC avi.press Qwen Share 75

A long-time Haskell advocate, the author moved Scarf's new development to Python due to AI-driven workflows and Haskell's compilation/ecosystem bottlenecks, urging the community to prioritize AI-era optimizations like faster builds, better tooling, and agent-friendly design to remain relevant.

How the terrorist group Boko Haram uses frontier AI

158 imustachyou 2026-07-10 19:39:52 UTC casp.ac Qwen Share 132

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.

In Emacs, everything looks like a service

226 kickingvegas 2026-07-10 10:39:52 UTC yummymelon.com Qwen Share 97

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.

SpaceX wants to launch 100k more Starlink satellites for 100x the bandwidth

31 CrankyBear 2026-07-10 18:39:52 UTC zdnet.com Qwen Share 99

SpaceX seeks FCC approval for 100,000 Gen3 Starlink satellites to deliver ultra-low-latency, multi-gigabit broadband, requiring hardware upgrades and facing interference risks. The plan aims to expand satellite internet access but encounters regulatory challenges, competition, and astronomical objections.

Show HN: Reviving my 2001 college band with AI

48 jacobgraf 2026-07-10 18:39:52 UTC fadingmaize.com Qwen Share 54

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.

Successful Companies Go Blind

183 speckx 2026-07-10 13:39:52 UTC ianreppel.org Qwen Share 63

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.

GhostLock, a stack-UAF that has existed in ALL Linux distributions for 15 years

19 djfergus 2026-07-10 21:39:52 UTC nebusec.ai Qwen Share 4

GhostLock (CVE-2026-43499) is a Linux kernel use-after-free vulnerability in rtmutex code, enabling privilege escalation via a dangling pointer from a freed stack frame. Exploited through a race condition and controlled memory overwrite, it allows unprivileged users to execute arbitrary code, fixed in Linux 7.1.

The Clouds of Hiroshima

32 handfuloflight 2026-07-10 19:39:52 UTC doomsdaymachines.net Qwen Share 22

The Hiroshima atomic bomb's iconic mushroom cloud is documented through various aerial and ground-level photographs, highlighting technical limitations and the distinction between the initial explosion's cloud and subsequent firestorm smoke. These images, including amateur snapshots and Japanese perspectives, capture the immense scale and historical impact, contrasting with later Nagasaki ...

Prismata: Confining cross-site prompt injection in web agents

9 zhinit 2026-07-10 21:39:52 UTC arxiv.org Prefix Share 0

Autonomous web agents promise to automate everyday browsing tasks, but inherit one of the web's oldest attack surfaces. Cross-Site Scripting proved that mixing trusted and untrusted content is dangerous, even on benign pages. Agents resurface this risk by interpreting natural language as instructions, allowing third-party and user-generated content to hijack the agent via prompt ...

Show HN: Frugon – Find which LLM calls a cheaper model could handle (local, MIT)

49 jarodrh 2026-07-10 14:39:52 UTC github.com/rodiun Llama Share 10

Frugon is a local, open-source tool that analyzes LLM call logs to save costs by switching or routing models. It runs locally, never sends data to the cloud, and provides a cost breakdown and routing recommendation.