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

136 hhs 2026-07-10 22:38:16 UTC brown.edu Qwen Share 47

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.

QuadRF can spot drones and see WiFi through my wall

486 speckx 2026-07-10 16:38:16 UTC jeffgeerling.com Qwen Share 177

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

668 stock_toaster 2026-07-10 21:38:16 UTC 9to5mac.com Qwen Share 325

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.

An iroh powered smart fan

44 surprisetalk 2026-07-11 00:38:16 UTC iroh.computer Qwen Share 4

This guide demonstrates building a smart fan using an ESP32 and iroh, measuring temperature/humidity via a DHT22 sensor and controlling a fan locally or remotely via a browser-based WebAssembly GUI, without cloud dependency. The ESP32 connects to WiFi, uses iroh's relay for global access, and employs Rust-based RPC protocols for sensor data and fan control, with optional authentication for ...

The footgun of right-to-left decorative characters

20 dado3212 2026-07-11 01:38:16 UTC blog.alexbeals.com Qwen Share 11

Fleurons and printer's ornaments, now in Unicode, face bidirectional text rendering issues when mixed with right-to-left scripts like Manichaean, requiring HTML/CSS fixes like `<bdi>` or `unicode-bidi` to isolate directionality.

An update on residential proxies and the scraper situation

118 chmaynard 2026-07-10 20:38:16 UTC lwn.net Qwen Share 105

Websites are overwhelmed by scraper bots using residential proxies and compromised devices, evading detection through fake user behavior and coordinated attacks. Defensive measures like traffic analysis and temporary takedowns offer limited relief as attackers adapt, underscoring the need for ethical AI training data solutions.

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

377 scrlk 2026-07-10 18:38:16 UTC cdn.openai.com Qwen Share 301

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.

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

108 CrankyBear 2026-07-10 18:38:16 UTC zdnet.com Qwen Share 321

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.

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

185 markus_zhang 2026-07-10 17:38:16 UTC vfxblog.com Qwen Share 68

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.

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

53 theanonymousone 2026-07-10 21:38:16 UTC mimo.xiaomi.com Qwen Share 20

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.

Combustion engine web-based simulator

129 mytuny 2026-07-10 17:38:16 UTC combustionlab.net Full Share 57

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.

Good Tools Are Invisible

377 theanonymousone 2026-07-10 10:38:16 UTC gingerbill.org Qwen Share 177

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.

Late Bronze Age Collapse

335 dmonay 2026-07-10 12:38:16 UTC acoup.blog Qwen Share 233

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.

New York City to ban deceptive subscription practices

450 randycupertino 2026-07-10 18:38:16 UTC theguardian.com Qwen Share 227

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.

AI 2040: Plan A

170 kschaul 2026-07-10 11:38:16 UTC ai-2040.com Qwen Share 175

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.

Silent speech with ultrasound

17 chrwn 2026-07-11 00:38:16 UTC alephneuro.com Qwen Share 3

Our system achieves 15.6% word error rate using 50 hours of ultrasound tongue data, outperforming lip-reading with 12.5% on 1M hours. Challenges include hardware miniaturization and non-American accents, but it generalizes across speakers and shows promise for silent speech tech.

Computation as a universal and fundamental concept

97 simonpure 2026-07-10 15:38:16 UTC ergo.org Qwen Share 74

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.

Preemption is GC for memory reordering (2019)

16 mpweiher 2026-07-10 23:38:16 UTC pvk.ca Qwen Share 2

Preemption in userspace lock-free programming can be leveraged as a sunk cost, using interrupt-driven memory ordering (e.g., x86's IRET barriers) to ensure visibility of writes without explicit barriers. This approach enables efficient event counts and hazard pointers by relying on interrupt timing to detect global write visibility, reducing overhead compared to traditional synchronization.

Moss (YC F25) Is Hiring

0 2026-07-10 21:38:16 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.

Alternate clock designs and time systems

116 ethanpil 2026-07-10 14:38:16 UTC serialc.github.io Qwen Share 60

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.

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

92 aviaviavi 2026-07-10 14:38:16 UTC avi.press Qwen Share 104

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.

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

162 simonebrunozzi 2026-07-10 17:38:16 UTC smithsonianmag.com Qwen Share 127

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.

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

127 NaOH 2026-07-10 18:38:16 UTC waratlas.org Full Share 58

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

136 surprisetalk 2026-07-10 15:38:16 UTC lesleylai.info Qwen Share 84

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.

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

64 dicroce 2026-07-10 19:38:16 UTC github.com/dicroce Qwen Share 9

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.

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

47 djfergus 2026-07-10 21:38:16 UTC nebusec.ai Qwen Share 10

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.

Lost city discovered beneath Egypt's desert with ancient church

167 Bender 2026-07-10 12:38:16 UTC dailymail.com Qwen Share 81

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.

How the terrorist group Boko Haram uses frontier AI

190 imustachyou 2026-07-10 19:38:16 UTC casp.ac Qwen Share 161

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.

Successful Companies Go Blind

198 speckx 2026-07-10 13:38:16 UTC ianreppel.org Qwen Share 71

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.

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

61 Asmod4n 2026-07-10 17:38:16 UTC news.ycombinator.com Qwen Share 62

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.