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Was Houdini a Spy? The Magician's Secret Life and the CIA's Lost Manuals

2025-04-03

Harry Houdini, the world-famous magician, had a profound, unexpected influence on espionage. Declassified CIA documents reveal that the agency used Houdini's escape techniques, among others, to train clandestine officers in deception. While rumors persist of Houdini acting as a spy for various agencies, concrete evidence remains scarce. Historians debate whether he was a full-fledged spy or simply an 'observer' providing intelligence to President Theodore Roosevelt. This intriguing story blends magic, espionage, and historical mystery.

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(www.cia.gov)
Misc Houdini Magic

Firefox and the Silent Audio Killer: How Websites Waste Your CPU and Battery

2025-02-15

The author discovered annoying white noise in Firefox, stemming from websites inefficiently using the WebAudio API's AudioContext. Many sites create and leave AudioContexts active even without playing audio, leading to excessive CPU and battery drain. While Chrome automatically suspends unused AudioContexts, Firefox doesn't, prompting the author to create a browser extension to mitigate the issue. This extension automatically suspends AudioContexts and attempts to resume them when sound is needed, saving resources.

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(h.43z.one)
Development browser performance

Adminer: A Powerful Single-File Database Management Tool

2025-03-20
Adminer: A Powerful Single-File Database Management Tool

Adminer is a full-featured database management tool written in PHP, consisting of a single file for easy deployment. It supports MySQL, PostgreSQL, SQLite, and many more databases, with plugins extending functionality to Elasticsearch, MongoDB, and others. Users can customize Adminer with additional plugins and manage their loading order via a simple PHP configuration file. Adminer Editor provides a user-friendly interface for data manipulation.

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(github.com)
Development

Critical Apple Chip Flaws: FLOP and SLAP Attacks

2025-01-28
Critical Apple Chip Flaws: FLOP and SLAP Attacks

Researchers discovered two critical vulnerabilities, dubbed FLOP and SLAP, in Apple's M-series and A-series chips. FLOP exploits the chip's load value predictor (LVP) to steal sensitive data from Chrome and Safari browsers, including information from Gmail, iCloud, and Google Maps. SLAP, targeting primarily Safari, leverages the load address predictor (LAP) for similar data theft. Affected devices include iPhones, iPads, and Macs released since September 2021. While Apple claims to be assessing the risk, researchers have published mitigations and recommend users update their systems.

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(arstechnica.com)
Tech Apple chip vulnerabilities security risk FLOP and SLAP attacks

DoubleClickjacking: Bypassing All Clickjacking Protections

2025-01-17
DoubleClickjacking: Bypassing All Clickjacking Protections

DoubleClickjacking is a novel attack exploiting the timing of double-click events to bypass all known clickjacking protections, including X-Frame-Options, CSP's frame-ancestors, and SameSite cookies. Attackers trick users into double-clicking a seemingly benign button, rapidly switching windows in milliseconds to hijack actions like authorizing malicious apps or changing account settings. It leverages the subtle timing difference between `mousedown` and `onclick` events, making it effective regardless of double-click speed. While some sites mitigate this by disabling buttons until user interaction (mouse movement or keyboard input) is detected, this requires client-side protection. Long-term solutions require new browser standards to defend against this.

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(www.paulosyibelo.com)
Tech clickjacking doubleclickjacking

AgentKit: Building Multi-Agent Networks with Deterministic Routing and Rich Tooling

2025-03-20
AgentKit: Building Multi-Agent Networks with Deterministic Routing and Rich Tooling

AgentKit is a framework for building multi-agent networks offering deterministic routing, support for multiple model providers, and rich tooling via MCP. Combined with the Inngest Dev Server and its orchestration engine, AgentKit makes your Agents fault-tolerant when deployed to the cloud. Core concepts include Agents (LLM calls combined with prompts, tools, and MCP), Networks (a simple way to get Agents to collaborate with a shared State, including handoff), State (combines conversation history with a fully typed state machine, used in routing), Routers (autonomy from code-based to LLM-based (ex: ReAct) orchestration), and Tracing (debug and optimize your workflow locally and in the cloud with built-in tracing). AgentKit supports multiple routing strategies, including code-based deterministic routing and agent-based autonomous routing, and offers a shared state mechanism for easier agent collaboration.

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(github.com)
Development multi-agent network deterministic routing

Lossless Compression of Vector IDs Boosts Approximate Nearest Neighbor Search

2025-01-23
Lossless Compression of Vector IDs Boosts Approximate Nearest Neighbor Search

Researchers introduce a lossless compression scheme for vector IDs to address the high storage cost of indexes in approximate nearest neighbor search. Leveraging the fact that the order of IDs is irrelevant in many index structures, and utilizing asymmetric numeral systems or wavelet trees, the method achieves up to 7x compression of vector IDs without impacting accuracy or search runtime. This translates to a 30% reduction in index size for billion-scale datasets. Furthermore, the approach can also losslessly compress quantized vector codes by exploiting sub-optimalities in the original quantization algorithm.

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(arxiv.org)
AI Approximate Nearest Neighbor Search Vector Compression Lossless Compression

JWST Detects Potentially Biosignature Gases on Exoplanet K2-18b

2025-04-17
JWST Detects Potentially Biosignature Gases on Exoplanet K2-18b

Using the James Webb Space Telescope, scientists have detected signs of dimethyl sulfide and dimethyl disulfide in the atmosphere of exoplanet K2-18b, chemicals produced by marine life on Earth. While not definitive proof of life, researchers call it the most promising sign yet of life beyond our solar system. K2-18b resides in the habitable zone, possessing the potential for liquid water, making life a possibility. This builds upon prior research identifying methane and carbon dioxide in K2-18b's atmosphere. Although alternative explanations exist, researchers are excited about the discovery and plan further investigation to confirm their findings.

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(www.skyatnightmagazine.com)
Tech biosignature

US Bans Chinese Vehicles, Impacting Polestar and Others

2025-01-15
US Bans Chinese Vehicles, Impacting Polestar and Others

The US finalized a rule effectively banning the import of Chinese-made connected vehicles, even those manufactured in the US, citing national security concerns. This impacts major automakers like Ford and GM, smaller companies like Polestar, and even Waymo. The ban covers technologies like Bluetooth and Wi-Fi, aiming to prevent data collection by China. It takes effect in 2027 for software and 2030 for hardware, with exceptions for vehicles over 10,000 pounds. The auto industry strongly opposes the ban; Polestar stated it would prevent the company from selling cars in the US. This represents an escalation in US-China trade tensions and highlights growing concerns about data security and national security.

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(www.theverge.com)
Tech US ban Chinese vehicles

Run Rails in Your Browser: The Magic of WebAssembly

2025-02-17
Run Rails in Your Browser: The Magic of WebAssembly

Imagine running a fully functional Rails blog in your browser—frontend and backend—without servers or clouds! WebAssembly makes running server-side frameworks locally possible, blurring the lines of classic web development. This post shows how to package a Rails app into a WebAssembly module and run it in the browser, recreating the magic of Rails' famous "15-minute blog" tutorial, but this time, your browser is the runtime. This is not just a technical demo; it showcases the boundless possibilities of WebAssembly, including offline apps and local application development.

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(web.dev)
Development Browser Applications

Solving Computational Science Problems with AI: Physics-Informed Neural Networks (PINNs)

2025-01-22

This article explores the use of Physics-Informed Neural Networks (PINNs) to solve challenging problems in computational science, particularly partial differential equations (PDEs). PINNs overcome limitations of traditional numerical methods by incorporating physical laws directly into the neural network's loss function. This addresses issues like insufficient data, high computational cost, and poor generalization. The article explains PDEs, partial derivatives, and demonstrates PINNs' implementation using the 2D heat equation, covering network architecture, loss function definition, and training. Results show PINNs accurately and efficiently model heat diffusion, offering a powerful tool for various scientific and engineering challenges.

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(mertkavi.com)
AI PDEs

Dyna: A Declarative Language for Machine Learning Researchers

2025-08-17

Dyna is a programming language designed by and for machine learning researchers. Building upon logic programming paradigms like Datalog and Prolog, Dyna allows flexible execution orders and weighted rules, enabling complex programs to be expressed concisely. From matrix multiplication and Fibonacci sequences to CKY parsing and even infinite neural networks, Dyna achieves impressive brevity. Started in 2004 to bridge the gap between mathematical concepts and executable code, Dyna has evolved through versions 1.0 and 2.0, continuously improving and expanding its capabilities. Current research focuses on building a flexible and complete implementation using relational algebra and term rewriting, and employing reinforcement learning to optimize execution strategies.

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(dyna.org)
Development declarative programming

APL Challenge: Win $100!

2025-02-05
APL Challenge: Win $100!

The Dyalog Ltd APL Challenge is on! Four rounds a year, each with ten problems running for three months. Win one of three $100 prizes! No prior programming experience needed; the problems teach you APL as you go. Even if you just want to learn about APL, register to stay updated on future rounds. Start your coding journey and compete for a chance to win!

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(challenge.dyalog.com)
Development prize money

I Want My AI to Get Mad: On the Need for Agentic AI

2025-01-29

The author envisions a future where AI agents are not mere docile tools but assertive representatives capable of pursuing his interests, even expressing 'anger.' Drawing parallels to powerful historical leaders, the author argues that anger can be a powerful tool for achieving goals. However, he also warns of the social risks of deploying such 'angry AI' on a massive scale, as anger can be misused. The article concludes with a thoughtful reflection on the future of AI and a plug for the author's startup, Subble.

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(jesseduffield.com)
AI AI Ethics Future Tech

Kylie Minogue's Obscure Techno-Pop Anthem About a Font

2025-03-25
Kylie Minogue's Obscure Techno-Pop Anthem About a Font

In 1997, pop icon Kylie Minogue teamed up with producer Towa Tei for the surprisingly catchy "GBI (German Bold Italic)", a song uniquely sung from the perspective of a typeface. This wasn't just a song; it was a creative font design experiment. Artist Hiro Sugiyama created the GBI font to accompany the track, included as a data track on Tei's album and available for download. The single and font design, a blend of late-90s techno and pop culture, remain relatively obscure today, but hold a unique place in design and music history, with occasional use by select artists.

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(abcdinamo.com)
Design

WebShield: A Powerful Open-Source Ad Blocker for Safari

2025-02-28
WebShield: A Powerful Open-Source Ad Blocker for Safari

WebShield is an open-source, wide-spectrum content blocker for Safari, similar to uBlock Origin. It blocks ads, trackers, cookie notices, and more, supporting custom filter lists and advanced scriptlets/extended CSS. Currently in beta, it supports macOS 14, iOS 17, and visionOS 1.3+. Entirely user-funded, it promises no ads or third-party deals. Download via TestFlight, contribute code, report bugs, or improve documentation. An App Store release and detailed documentation are coming soon.

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(github.com)
Development Ad Blocker

Attack Hidden in Plain Sight: Tenant-Level Security Analysis Unmasks Malicious Activity

2025-03-31
Attack Hidden in Plain Sight: Tenant-Level Security Analysis Unmasks Malicious Activity

A security team uncovered a seemingly ordinary user login that masked a sophisticated attack targeting 24 users. The attacker used the Microsoft Azure CLI, attempting logins from a Mexican data center with no more than two attempts per user to avoid brute-force detection. They also utilized IPs from the 2001:0470:c8e0::/48 range to evade IOC-based detection. By analyzing login activity at the tenant level, rather than focusing on individual users, the team successfully identified the attack. This highlights the importance of tenant-wide log analysis to uncover malicious activities hidden within seemingly normal user behavior.

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(petrasecurity.substack.com)
Tech security analysis Azure security malicious login

Is Online Debate Making Us Dumber?

2025-02-17
Is Online Debate Making Us Dumber?

The internet promised a renaissance of discourse, but instead, we find ourselves engaged in low-quality arguments amplified by social media algorithms. These platforms reward conflict, making it difficult to change minds and fostering a Dunning-Kruger effect where confidence outweighs understanding. The author argues that online debate actively harms our thinking, suggesting we shift towards deep reading, writing, and more conducive environments for genuine learning, rather than focusing on winning arguments.

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(www.joanwestenberg.com)
Misc online debate cognitive bias

Hacking the Yamaha DX9 to Mimic the DX7

2025-01-19

A vintage synth enthusiast reverse-engineered and rewrote the firmware ROM of the Yamaha DX9, significantly enhancing its functionality to closely match the DX7. By cleverly overcoming hardware limitations and restoring missing features like two additional operators, the hacker enabled the DX9 to load and play DX7 patches. Fixes included improved MIDI handling and a pitch envelope generator. The project's source code is publicly available, showcasing impressive technical skill and passion for vintage synthesizers, even if the target audience is small. This unexpected feat delighted the retro synth community.

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(ajxs.me)
Hardware firmware hacking vintage synthesizer

Firefly's Blue Ghost Lunar Lander Enters Lunar Orbit

2025-02-16

Firefly Aerospace's Blue Ghost lunar lander, launched from Kennedy Space Center aboard a Falcon 9 rocket, has successfully entered lunar orbit. This CLPS mission carries a record-breaking 10 NASA payloads designed for various scientific experiments, including studying lunar heat flow and the plume generated during landing. After final preparations, the lander is scheduled to touch down near Mare Crisium on March 2nd.

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(spaceflightnow.com)
Tech lunar lander Firefly Aerospace

Is ChatGPT's Autocomplete a UX/UI Fail?

2025-02-17
Is ChatGPT's Autocomplete a UX/UI Fail?

This article questions the UX/UI design of ChatGPT's autocomplete feature. The author argues that while autocomplete is helpful in search bars due to a limited response space and high success rate, it's disruptive in chat. ChatGPT frequently fails to predict user input, interrupting their thought process and causing frustration. The author likens ChatGPT's autocomplete to a colleague constantly interrupting conversations, questioning the design's usability and expressing confusion about its perceived value.

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(honzabe.com)
Development

Optimizing Integer Division in C++: Templates, Lambdas, and Metaprogramming

2025-03-16

This article explores several approaches to optimizing integer division in C++. Direct integer division can be inefficient, especially when the divisor is known at compile time. It starts by demonstrating the use of C++ template functions, allowing the compiler to optimize when the divisor is a compile-time constant. However, template functions can increase code complexity. The article then attempts to simplify the code using lambda expressions and template lambda expressions, but encounters issues with directly using template lambdas, requiring the use of `operator()` for invocation. Finally, it compares the pros and cons of various methods, including simple lambdas and more advanced template metaprogramming techniques, suggesting the most suitable approach depending on the context.

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(lemire.me)
Development Template Metaprogramming

Running Windows 98 Smoothly in UTM SE: A How-To

2025-09-13
Running Windows 98 Smoothly in UTM SE: A How-To

This guide details how to successfully run Windows 98 within UTM SE (a QEMU-based emulator), enabling you to enjoy classic 90s Windows and DOS software. It focuses on resolving PCI device conflicts (via ACPI), choosing optimal virtual hardware (CPU, video, sound, network), and performance optimization. The author thoroughly explores the pros and cons of various hardware options and shares experiences running Windows 98 on iPad and Mac, offering valuable insights for retrocomputing enthusiasts.

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(sporks.space)
Development

Run DeepSeek R1 Reasoning Models Effortlessly on AMD Ryzen AI Processors

2025-02-07
Run DeepSeek R1 Reasoning Models Effortlessly on AMD Ryzen AI Processors

DeepSeek R1, a new class of reasoning models, tackles complex tasks using chain-of-thought (CoT) reasoning, albeit with a longer response time. These highly capable, distilled DeepSeek R1 models are now easily deployable on AMD Ryzen™ AI processors and Radeon™ graphics cards via LM Studio. The article provides a step-by-step guide to running various DeepSeek R1 distillations on different AMD hardware configurations, including recommended model sizes and quantization settings for optimal performance.

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(community.amd.com)
AI AI reasoning models

NIH Rescinds Final Scientific Integrity Policy

2025-03-30

The National Institutes of Health (NIH) has rescinded its Final Scientific Integrity Policy (NOT-OD-24-178) to align with the Administration's priorities. The NIH remains committed to scientific integrity and maintains multiple overlapping policies supporting it, including those on research misconduct, authorship, human and animal subject protections, and data management and sharing. This notice only affects the Final Scientific Integrity Policy and not any policies referenced within it. The NIH will also adhere to the HHS Scientific Integrity Policy.

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(grants.nih.gov)
Tech scientific integrity policy change

Blue Origin's New Glenn Rocket Achieves Orbit on Maiden Flight

2025-01-16
Blue Origin's New Glenn Rocket Achieves Orbit on Maiden Flight

After several delays, Blue Origin's massive New Glenn rocket successfully launched and reached orbit. The launch overcame engine chilling issues and a boat that strayed into the restricted zone. While the first stage booster failed to return to Earth, this marks Blue Origin's first-ever orbital flight in nearly 25 years of existence, a monumental achievement for the private space industry. This success is a major win for Blue Origin and its founder Jeff Bezos, injecting new hope into the future of space exploration.

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(arstechnica.com)
Tech Orbital Flight

Guitaraoke: Automating Chord Generation for Karaoke Videos

2025-01-21
Guitaraoke: Automating Chord Generation for Karaoke Videos

To enhance his monthly Guitaraoke night, Dylan Beattie built a system that automatically displays song chords on karaoke videos. He uses the Vamp plugin to extract chord information from audio, then ImageSharp and FFMpegCore to generate a transparent video overlay with the chords, finally compositing this onto the original video. This involves audio analysis, image processing, and video composition, resulting in real-time chord display for guitarists. Future improvements include automatic beat detection and batch processing.

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(dylanbeattie.net)
Development Audio Processing

Computational Geometry with Probabilistically Noisy Primitives

2025-01-20

A new preprint explores computational geometry algorithms under probabilistically noisy primitive operations. Many such algorithms rely on primitives accessing input coordinates and converting them to combinatorial information. The paper considers primitives randomly producing incorrect results and investigates achieving high-probability correct outcomes without significant efficiency loss. It finds that for some problems (like convex hull construction), slowdown from repetition can be avoided, while for others (like finding closest pairs), it cannot. This connects to prior work on communication complexity using noisy comparisons to improve efficiency.

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(11011110.github.io)
Development computational geometry probabilistic noise algorithm efficiency

Kubernetes Slack Migration to New Platform Imminent

2025-06-16

The Kubernetes Slack workspace will be downgraded to a free plan on June 20th, resulting in a 90-day message history limit and the disabling of several apps and workflows. This is due to the workspace's size exceeding Slack's free plan capabilities. The Kubernetes community is exploring a migration to Discord, offering improved features and integrations, such as GitHub group membership synchronization. The Steering Committee will ultimately decide on the future platform.

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(www.kubernetes.dev)
Development
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