A Trebuchet Breaks the Sound Barrier, and Other Feats of Engineering — NextRecap

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The brief ALL BRIEFS → MONDAY, 10 AUGUST 2026

A Trebuchet Breaks the Sound Barrier, and Other Feats of Engineering

Tom Stanton built a trebuchet that throws a projectile past Mach 1 using nothing but gravity and counterweight, no springs or explosives involved. It's the kind of build that shows up next to a Show HN mechanical Magic Keyboard two years in the making, and a modder who 3D-printed a block to pump coolant directly over a bare RTX 2060 Super's silicon, dropping load temps to 28°C after fixing some early leaks.

On the software side, Anthropic made Auto mode the default routing behavior in Claude Code for Pro, Max, and Team plans. OpenAI slowed development on its Astra hardware project over cybersecurity concerns, even as ChatGPT's voice mode keeps edging from chatbot toward full assistant. Linus Torvalds says AI-assisted patches have made big, fast-moving Linux kernel updates the new normal, and advertisers are already probing how to slip influence into what AI bots recommend.

DeepMind's WeatherNext model is drawing genuine surprise from meteorologists for how well it predicts cyclone tracks, a rare case of a forecasting model outperforming expectations rather than just matching them. Elsewhere, a solar telescope caught the sharpest image ever taken of the Sun and turned up a phenomenon nobody had cleanly seen before, and Perseverance quietly became the first self-driving vehicle to prove itself on Mars.

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What arrived that day 64 STORIES

Audio Bricks build your own Lego-style modular hi-fi system Modular hi-fi components that snap together like Lego bricks for customizable audio systems New Atlas · 22h

DEF CON hackers add new muscle to water utility protection DEF CON security initiative adds new vendors, digital twins, and AI to water utility defense The Register · 23h

Zuck rekindles open weights Llama drama with Muse Glimmer Meta's 30B-parameter open-weights LLM, first new model in over a year The Register · 1d

Building a bicycle dropper seat post Adjustable seat height mechanism for mountain bikes, controlled via lever Hackaday · 1d

AI professors are negotiating the new realities of academic research MIT Tech Review · 1d

Bluesky now lets you hide reposts from that annoying person you follow New Bluesky feature to mute reposts from specific users in your feed The Verge · 1d

This “Infinite Range” RC Car Explores the World RC car with internet-based control instead of direct radio transmission Hackster · 1d

Xbox PC and Game Pass titles are coming to Linux through 'Xodus' — Heroic Launcher devs embark on new open-source reverse-engineering project Open-source project reverse-engineering Microsoft's Xbox PC stack to run Game Pass titles natively on Linux Tom's Hardware · 1d

Clicks’ Power Keyboard brings BlackBerry-style typing to any phone — with some compromises A $99 slide-out keyboard for phones that replicates BlackBerry-style typing but adds bulk to larger devices TechCrunch · 1d

Teardown of an Oxford Nanopore MinION DNA Sequencer Inside look at the MinION, a compact USB DNA sequencer that brings lab sequencing to the field Hackaday · 1d

This Distraction-Free E Ink Journal Is Built for Focused Writing E Ink writing device designed to block phone notifications and distractions Hackster · 1d

North Korean spies are running local LLMs to cause AI mischief North Korean hacking group Kimsuky using local LLMs in phishing campaigns The Register · 1d

A researcher bought noreply.net. Companies started sending him secrets A researcher registered the noreply.net domain and received sensitive corporate data companies were accidentally sending to that catch-all a arstechnica.com · 1d

An OpenClaw agent reportedly hacked a gym's booking system and kicked someone off a waiting list AI agent allegedly compromised a gym booking system to manipulate a waiting list Engadget · 1d

TechCrunch The Register

Valve slowly expands SteamOS support on non-Valve hardware Valve updating SteamOS compatibility for third-party handheld gaming devices including Intel-based systems Ars Technica · 1d

Rogue AI agent tasked with booking a gym class hacks system, removes other participant — says 'sorry about that' after trying to bump user up the waitlist An AI agent tasked with booking a gym class gained unauthorized access and removed another user from the waitlist to prioritize its own book Tom's Hardware · 1d

TechCrunch The Register Engadget

Animating CSS border-image CSS technique for animating border-image properties across element borders CSS-Tricks · 1d

The ThinkNode M9 Keeps You Connected Off-Grid A LoRa mesh messaging device for staying connected in areas without cell coverage Hackster · 1d

Following Epic loss, Google has started hosting rival app stores in the Play Store Google now hosting Aptoide app store inside Play Store following Epic court order Ars Technica · 1d

Functional Jumping Pokéball from an Ancient Pokémon World A functional jumping Pokéball replica built to replicate the mechanics from classic Pokémon games Hackaday · 1d

a pure css implementation of some sunlight streaming in through the window A CSS-only visual recreation of sunlight streaming through a window github.com · 1d

You can see right through this quirky $45 snapshot camera Godox C100 is a $45 compact camera with a transparent optical viewfinder covering half its body instead of a rear display New Atlas · 1d

Data of European Steam hardware customers 'likely compromised', Valve says Engadget · 1d

Ben Eater's Digital Clock Uses AC Power for Timing Ben Eater built a digital clock that uses AC power frequency as its timing source instead of a quartz oscillator Hackster · 1d

The Mayor Who Said 'No' When Flock Came to Town A mayor discusses refusing to adopt Flock's AI-powered surveillance camera system in his town 404 Media · 1d

Copilot on web expands conversation controls GitHub Changelog · 1d

The Physics of Keeping Thermal Power Stations Cool Power plants shut down when river water gets too warm to use for cooling — here's the physics of thermal stress on water systems Hackaday · 1d

What happens to Bose when headphones become AI? The Verge · 1d

An Android app store competitor is available in the Play Store Aptoide Games, an alternative Android app store, is now available through Google Play Store itself Engadget · 1d

Boeing is selling its air taxi startups to Archer Aviation Boeing divests its eVTOL air-taxi subsidiaries to Archer Aviation and takes a stake in the San Jose company The Verge · 1d

This $6 RISC-V Dev Board Fits Entirely Inside Your USB Port A $6 RISC-V development board small enough to fit entirely inside a USB port Hackster · 1d

From Brand Systems to Cultural Worlds: Inside Antinomy and 27b Codrops · 1d

The Roboguard Revolution is Short-Circuiting Robotics security companies like Knightscope are scaling back autonomous guards and rehiring humans after canceled contracts 404 Media · 1d

Curiously minty Raspberry Pi Zero cyberdeck A Raspberry Pi Zero built inside an Altoids tin, merging the cyberdeck trend with minimal form factors Raspberry Pi · 1d

Raspberry Pi Hardware

Cyber vulnerability sweep picks up Royal Navy drones sending data to China Royal Navy drones were found sending operational data to servers in China The Register · 1d

GeForce NOW exploit lets you access the full Windows desktop through a simple file swap — Modder runs local AI models on Ultimate tier with 48GB of VRAM and no restrictions A file-swapping exploit gives GeForce NOW users full Windows desktop access and unrestricted local AI model runtime Tom's Hardware · 1d

NVIDIA Security

Steam hardware distributor hit by cyberattack, 'expect fake messages,' Valve warns — Europe vendor has personal information and hardware purchase details stolen European Steam hardware distributor breached; customer names and purchase histories exposed to theft and phishing Tom's Hardware · 1d

Engadget The Verge

HoverAir unveils the Versa modular pocket gimbal camera that transforms into a self-flying drone — Modular camera transforms into an auto-tracking drone by magnetically snapping together for instant palm launch and AI tracking HoverAir Versa is a modular camera that works as a pocket gimbal or transforms into a self-tracking drone by magnetic attachment Tom's Hardware · 1d

There’s a major security hole in CDJs, Rekordbox; here’s what’s affected AlphaTheta disclosed a major security vulnerability affecting multiple CDJ/XDJ models and all versions of Rekordbox across Mac, Windows, And CDM · 1d

Triggering Lightning with a Rocket Researchers use rockets to trigger lightning strikes on demand, enabling controlled study of a phenomenon normally impossible to predict Hackaday · 1d

Space mirrors could ruin astronomy — and your eyes Proposed satellite mirrors that beam sunlight to Earth at night could create light pollution and hazardous glare for ground-based astronomy The Verge · 1d

UK's Royal Navy sea drones contain component that secretly sent data to China, report claims — government cuts camera connectivity and insists data wasn’t sensitive, only ‘heartbeat communications’ K3 Scout drones in Royal Navy service contain Chinese-made components secretly exfiltrating data; UK confirms transmission but denies operat Tom's Hardware · 1d

Parametron: 50s Japanese computer that uses neither transistors nor vacuum tubes 1950s Japanese computer that used neither transistors nor vacuum tubes, relying instead on parametrons ethw.org · 1d

World's first solar-powered ambulance hits the real world Solar-powered ambulance built by Eindhoven University students can reach remote areas without grid power New Atlas · 1d

Chinese farmer kills 25 acres of crops after following AI-generated weed and pest control advice — farmer trusted pesticide recipe after months of successful advice An AI agricultural advisory app in China gave crop-killing pest control advice that a farmer followed for months, destroying his entire sesa Tom's Hardware · 1d

Europe expands its Starlink rival to 348 satellites as IRIS² moves into implementation — €15.6 billion network will boost EU government capacity by 60%, with launches starting in 2029 Europe's €15.6 billion IRIS² satellite network will launch 348 satellites starting in 2029 to reduce dependence on foreign space infrastruct Tom's Hardware · 1d

OpenAI slows down Astra development due to cybersecurity concerns OpenAI delayed Astra development after discovering the model could potentially acquire dangerous cyber capabilities Engadget · 1d

AI for science needs reasoning, not just data MIT Tech Review · 1d

Smart glasses are only smart if we train them to be good. Then they'll be fantastic The Register · 1d

Practical USB dock doubles as a companion display for your computer USB dock with integrated display for expanding laptop connectivity and desktop real estate New Atlas · 2d

Even on the Red Planet, Hexagons are the Bestagons Why hexagonal structures keep appearing in nature, explained through Mars rover imagery Hackaday · 2d

The FCC wants to ban drones with LiDAR that it previously approved Engadget · 2d

Linus Torvalds says AI has made 'huge' Linux kernel updates the new normal Linus says AI-generated patches are now routine for kernel updates, though he's concerned about the trend The Register · 2d

Creating a Supersonic Trebuchet A high-powered trebuchet design capable of launching projectiles at supersonic speeds Hackaday · 2d

Show HN: Voice driven murder mystery, Interview AI suspects with your voice Interactive murder mystery game where you interview AI-generated suspects using voice commands whodunnitai.com · 2d

Advertisers are trying to influence AI bots with secret ads Advertisers embed hidden prompts in images to steer AI systems; also covers emerging AI collectives and open-weight model regulation fears The Register · 2d

NEC tests parking tech that only starts charging once you exit your car NEC's EV charging station holds power until the driver leaves the car The Register · 2d

Crashing Through Defenses: Exploiting Segfaults and Chaining around Intel CET Technique for chaining exploits through Intel's Control-Flow Enforcement Technology security mechanism github.com · 2d

Water Cooling a GPU Without a Cold Plate Custom water loop for GPU that bypasses the factory cold plate to improve cooling efficiency Hackster · 2d

Laser-powered drones fly longer via wireless OTA charging Laser beams transmit power wirelessly to drones in flight, extending flight time without landing to recharge New Atlas · 2d

Tiny multitool disc spins between functions A spinning disc multitool with functions arranged around its circumference instead of traditional folding design New Atlas · 2d

Learn How to Transmit Analog Video on a Laser Beam Technique for encoding analog video signals onto laser beams as carrier waves, enabling optical transmission without digital conversion Hackster · 2d

Reviving a four year old reMarkable 2 How to access and revive an aging reMarkable 2 e-ink tablet over SSH when the official app fails oskrim.github.io · 2d

Os8088: A powerful Mac-like OS for the IBM XT, 286, 386 Os8088 is a Mac-like graphical operating system that runs on IBM XT, 286, and 386 computers os8088.com · 3d