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LOPSA Announces Dissolution, Transitioning Members to ACM

2025-06-16

The LOPSA Board has announced the dissolution of the organization due to its inability to consistently provide professional opportunities in recent years. To ensure a smooth transition for its members, LOPSA is working with the Association for Computing Machinery (ACM) to provide ACM memberships to current, paid members in good standing. The specific membership level will depend on available funds. An AMA session will be held on July 29th to address member questions.

(lopsa.org)

Misc organization dissolution member transition

Water-Walking Robot Inspired by Ripple Bugs

2025-09-07

Water-Walking Robot Inspired by Ripple Bugs

Scientists have created a tiny robot called Rhagobot, inspired by Rhagovelia water striders (also known as ripple bugs). These semiaquatic insects glide effortlessly across water thanks to unique fan-like appendages on their middle legs. Rhagobot mimics this adaptation, using passively morphing structures that adjust to water flow for propulsion. The five-year study, published in Science, reveals the previously unknown intricate structure of the water strider's legs and provides insights into developing self-morphing artificial propellers for semi-aquatic robots.

(arstechnica.com)

Tech water striders

ChatGPT's Surprisingly Small Impact on the Danish Labor Market

2025-05-03

ChatGPT's Surprisingly Small Impact on the Danish Labor Market

A new study examining the Danish labor market in 2023-2024 reveals that generative AI models like ChatGPT have had a negligible impact on wages and employment, despite widespread adoption. Researchers from the University of Chicago and the University of Copenhagen analyzed data from 25,000 workers and 7,000 workplaces across 11 occupations often considered vulnerable to automation. While company investment spurred AI tool adoption, leading to time savings for a significant portion of users, the overall economic impact was minimal. Interestingly, the study found that AI chatbots created new tasks for 8.4% of workers, offsetting potential time savings. This suggests that while AI may automate some tasks, it also generates new ones, mitigating its initial disruptive potential.

(arstechnica.com)

Tech AI impact labor market

AP Program Gets a Makeover: Industry Partners Join the Fold

2025-03-22

AP Program Gets a Makeover: Industry Partners Join the Fold

The College Board, creator of the Advanced Placement (AP) program, is revolutionizing its curriculum. Partnering with industry giants like IBM and the U.S. Chamber of Commerce, they've launched AP Career Kickstart, initially offering courses in cybersecurity and business principles/personal finance. This aims to bridge the gap between high school education and in-demand job skills, attracting students not solely focused on college. The courses offer college credit and industry-recognized skills, enhancing employability. This signifies a blurring of lines between traditional education and vocational training, reflecting a broader societal re-evaluation of higher education's value.

(www.edweek.org)

Tech AP Program Career Education Skills Training

AI-Powered Translation Tool: Bridge the Language Gap Effortlessly

2025-07-15

AI-Powered Translation Tool: Bridge the Language Gap Effortlessly

Tired of language barriers hindering communication with foreign friends or partners? This AI-powered translation tool makes it easy! Simply type what you want to say, add context for uncertain words in curly braces {}, and the AI provides accurate corrections and explanations, along with audio pronunciation to help you master rhythm and intonation. All corrections are saved for review, enabling continuous language improvement. No sign-up or subscription is needed—use it anytime, anywhere, for natural and fluent communication in your target language.

(menerdu.vercel.app)

Development AI translation

pnpm Update: Delayed Dependency Updates and Advanced Dependency Finding

2025-09-18

pnpm Update: Delayed Dependency Updates and Advanced Dependency Finding

The latest pnpm release introduces two significant features: First, a new `minimumReleaseAge` setting delays the installation of newly released dependencies to mitigate security risks. Second, it adds support for finder functions in `.pnpmfile.cjs` allowing for custom search rules via `pnpm list` or `pnpm why` with the `--find-by` flag, enabling more granular dependency searching; for example, finding packages with a specific React version in their peerDependencies. Bug fixes include resolving deprecation warnings in Node.js 24 and ensuring a non-zero exit code when a process is cancelled with Ctrl-C.

(pnpm.io)

Development

Rendezvous Hashing: A Distributed Hashing Algorithm with Excellent Load Balancing

2025-09-18

Rendezvous hashing solves the distributed hash table problem by generating a prioritized server list for each key and selecting the first server. Unlike consistent hashing, it offers superior load balancing but has an O(N) lookup time. It's a good choice for small to medium-sized distributed caches, but adding servers in larger systems requires careful management to maintain the "first choice" invariant. Its popularity lagged behind consistent hashing, possibly due to a lack of a 'killer app' moment, despite its earlier invention and inherent advantages.

(randorithms.com)

Development distributed hash table consistent hashing

Indian Chemical Firm Indicted in US Fentanyl Precursor Smuggling Case

2025-03-21

Indian Chemical Firm Indicted in US Fentanyl Precursor Smuggling Case

An Indian chemical manufacturing company, Vasudha Pharma Chem Limited (VPC), and three of its high-ranking executives were indicted in a US federal court for illegally importing precursor chemicals used to make fentanyl. The indictment alleges VPC advertised and sold these chemicals globally, including two sales of 25 kilograms of N-BOC-4P to an undercover agent. A larger, planned four-metric-ton transaction—two tons to Mexico and two to the US—was also detailed. If convicted, the individuals face up to 10 years in prison, and VPC faces substantial fines. Two executives were arrested in New York City.

(www.justice.gov)

Tech fentanyl

Mangle: An Open-Source Deductive Database Programming Language Based on Datalog

2025-08-18

Mangle: An Open-Source Deductive Database Programming Language Based on Datalog

Mangle is an open-source programming language extending Datalog for deductive database programming. It supports features like aggregation, function calls, and optional type-checking, enabling uniform representation and querying of data from multiple sources and modeling domain knowledge. Mangle provides a Go library for easy embedding in applications. It supports recursive rules and demonstrates, through examples, how to use Mangle to find software affected by the log4j vulnerability, and how to perform grouping and aggregation. While sacrificing some performance, its ease of use and extensibility make it a powerful tool.

(github.com)

Development deductive database

Netflix Ditches Kafka and Cassandra for In-Memory Database on Tudum

2025-08-19

Netflix Ditches Kafka and Cassandra for In-Memory Database on Tudum

Netflix's fan website, Tudum, initially used a CQRS architecture with Kafka and Cassandra, but suffered from delays in previewing content updates. To address this, the Netflix team replaced Kafka and Cassandra with RAW Hollow, an internally developed in-memory object store. RAW Hollow's in-memory dataset dramatically improved content preview and page rendering speeds, offering a better experience for both editors and visitors.

(www.infoq.com)

Tech

Crows and Magpies Use Anti-Bird Spikes in Nest Building: A Rebellious Act of Nature

2025-03-14

Crows and Magpies Use Anti-Bird Spikes in Nest Building: A Rebellious Act of Nature

Common anti-bird spikes, designed to deter birds from buildings, are being ingeniously repurposed by crows and magpies as nesting material. A new study reveals these birds collect and integrate the spikes into their nests, even potentially using them as defense against other birds. Researchers found this behavior in several European cities, with one magpie nest containing approximately 1,500 visible spikes. This discovery not only highlights the remarkable adaptability and intelligence of birds but also prompts reflection on the balance between urban development and wildlife.

(www.audubon.org)

Tech urban ecology bird intelligence

OrioleDB's Bridged Indexes: Balancing Speed and Ecosystem

2025-05-30

OrioleDB introduces bridged indexes, a clever solution to integrate PostgreSQL's rich ecosystem of non-B-tree indexes (like GIN, GiST) while preserving its MVCC-aware, heap-free architecture. A virtual `iptr` column and a lightweight bridge index map PostgreSQL indexes to OrioleDB's internal structure. This allows support for diverse index types. While adding a slight query overhead (one extra lookup), this cost is often negligible for complex indexes (e.g., pg_vector's ANN search). This innovation lets users leverage their preferred extensions without sacrificing performance.

(www.orioledb.com)

Development index

Remembering Mikeal Rogers: A Beacon of the Open Source Community

2025-06-10

Remembering Mikeal Rogers: A Beacon of the Open Source Community

This heartfelt tribute remembers Mikeal Rogers, a key contributor to Node.js, who passed away from aggressive cancer. The author recounts their shared journey and Mikeal's profound impact on the open-source community. Mikeal's technical brilliance, clear thinking, and genuine humanity shone through, emphasizing the human connection at the heart of code. He championed open source as a promise, not just a license, mentoring others and fostering growth. The author commits to carrying on Mikeal's legacy of building inclusive and open communities.

(b.h4x.zip)

Development Tribute

Reverse Engineering a Linux Driver for the Nanoleaf Pegboard Desk Dock

2025-06-26

Reverse Engineering a Linux Driver for the Nanoleaf Pegboard Desk Dock

The author bought a Nanoleaf Pegboard Desk Dock, a USB hub with RGB LEDs and gadget hooks, and decided to write a Linux driver for it since it only supports Windows and macOS. After obtaining protocol documentation from the vendor, the author used Rust and the libusb library to create a user-space driver. The article details the process, including using lsusb to get device information, handling USB interfaces, and using udev rules for user permissions. The author successfully created a simple driver to control the Desk Dock's RGB LEDs and handle device interrupts. Challenges like kernel driver occupancy and interrupt handling were overcome, leading to a deeper understanding of writing simple USB device drivers. While a simple proof of concept, it highlights that writing basic device drivers isn't as hard as it seems.

(crescentro.se)

Development

RT64: A Cutting-Edge N64 Graphics Renderer

2025-02-20

RT64: A Cutting-Edge N64 Graphics Renderer

RT64 is a modern N64 graphics renderer built on the latest APIs (D3D12 and Vulkan), designed to enhance gameplay in emulators and native ports. It utilizes ubershaders to eliminate stutters, supports high-resolution rendering and downsampling, widescreen, and high frame rate (HFR). Powerful features include texture pack support, memory optimizations, and framebuffer reinterpretation. Future development includes ray tracing, a game script interpreter, and model replacement, promising a revolutionary upgrade to the N64 gaming experience.

(github.com)

Game Renderer Graphics Enhancement

Lisp: A Creative Medium for Programmers

2025-06-15

This essay argues that Lisp is not just a programming language, but a creative medium for programmers, akin to writing or art. The author contends that good programming, like writing, involves exploration and discovery, followed by refinement of the presentation. Lisp's dynamic nature makes it ideal for experimentation and iteration, allowing programmers to adjust and improve their code much like a writer revises a manuscript. Using examples like mapmaking and writing, the author illustrates the interplay between discovery and refinement, criticizing the performance-first approach to programming language design as hindering creativity and flexibility. The author advocates for a more flexible and exploratory approach to software development, echoing the spirit of Agile methodologies.

(www.dreamsongs.com)

Development Programming Paradigm

DOJ Wants Google to Divest Chrome Browser

2025-03-08

DOJ Wants Google to Divest Chrome Browser

The US Department of Justice is proposing that Google divest its Chrome browser and related assets as part of a landmark antitrust case settlement. The proposal also demands Google stop paying partners for preferential search engine treatment and provide prior notification of future AI investments. Google argues its success stems from superior technology and that consumers can easily switch default search engines. A 2023 trial resulted in a judge ruling that Google maintains an illegal monopoly, primarily due to contracts with device makers and browser partners making Google the default search engine and sharing substantial revenue, thereby stifling competition.

(www.wired.com)

Tech

Schrödinger's Cat and Heisenberg's Cut: Quantum Mechanics' Paradox and Interpretations

2024-12-15

Schrödinger's Cat and Heisenberg's Cut: Quantum Mechanics' Paradox and Interpretations

This article delves into Schrödinger's cat thought experiment and its impact on popular culture. Schrödinger proposed this experiment to highlight the absurdity of superposition in quantum mechanics, not to suggest a cat is simultaneously alive and dead. The article further explains Heisenberg's cut—the boundary between quantum mechanics and classical physics—and how different interpretations (like the Copenhagen interpretation) address this cut. The author ultimately argues that quantum mechanics is a powerful probabilistic calculation framework, but its applicability to the macroscopic world requires further investigation.

(jimbaggott.substack.com)

AI quantum mechanics Schrödinger's cat Heisenberg's cut

Memvid: Revolutionizing AI Memory with Videos

2025-06-01

Memvid: Revolutionizing AI Memory with Videos

Memvid revolutionizes AI memory management by encoding text data into videos, enabling lightning-fast semantic search across millions of text chunks with sub-second retrieval times. Unlike traditional vector databases that consume massive amounts of RAM and storage, Memvid compresses your knowledge base into compact video files while maintaining instant access to any information. It supports PDF imports, various LLMs, offline-first operation, and boasts a simple API. Whether building a personal knowledge base or handling massive datasets, Memvid offers an efficient and convenient solution, marking a revolution in AI memory management.

(github.com)

AI video database

Reverse Engineering Samsung NX mini Firmware Compression: Uncovering Fujitsu RELC

2025-05-07

Reverse Engineering Samsung NX mini Firmware Compression: Uncovering Fujitsu RELC

This post details the reverse engineering of a proprietary LZSS compression algorithm used in the firmware of Samsung NX mini, NX3000/NX3300, and Galaxy K Zoom cameras. The initial goal was to understand enough of the algorithm to extract and disassemble the ARM code, but it turned out to be Fujitsu's RELC (Rapid Embedded Lossless Data Compression), a hardware IP block on their ARM SoCs. By meticulously analyzing the compressed stream, the researchers determined the bitmask, offset, and length encoding schemes, ultimately creating a complete decompressor that successfully decompressed all firmware files. This research not only reveals the compression mechanism of the Samsung camera firmware but also highlights the challenges and techniques involved in reverse engineering unknown compression algorithms.

(op-co.de)

Development compression algorithm

Why Can't HTML Import HTML?

2025-05-03

Why Can't HTML Import HTML?

The author is obsessed with a simple web development need: reusing the same header across multiple HTML pages. He finds many solutions, but none are purely HTML-based. This leads him to question why HTML can't directly import other HTML files like CSS or JavaScript can. He explores potential reasons, such as preload scanners, asynchronous loading issues, the complexity of nested includes, increased web requests, and more, and solicits reader input.

(frontendmasters.com)

Development

Pebble Time 2 Reborn: Final Design and Specs Revealed

2025-08-14

Pebble Time 2 Reborn: Final Design and Specs Revealed

The Pebble Time 2, once envisioned as Pebble's flagship smartwatch, is back. The revived version boasts a refined design with added curves, color accents, knurled buttons, and a premium stainless steel build, similar to the original Pebble Steel. Unlike the earlier prototype, the final design features a flat glass panel to minimize reflections and an advanced RGB backlight allowing for customizable color temperature. Available in black and silver with additional color accents, it also includes a built-in compass, a feature absent in the initial plans. Pre-orders are open at $225, with final pricing subject to regional variations.

(9to5google.com)

Hardware

Reveal: An Open Door to Your Running Clojure Programs

2025-09-07

Reveal is a Clojure-oriented data inspection toolbox designed to simplify the process of examining objects within your JVM. Offering both interactive REPL panes and tools, it supports local and remote processes. Available in a free, open-source version and a paid Pro version (free for Ukrainian citizens), Reveal empowers users to deeply inspect data structures. Comprehensive documentation, tutorials, and videos guide users through its features, making it an invaluable tool for Clojure developers.

(vlaaad.github.io)

Development Data Inspection

Signal Cryptography Audit: A Weekend Deep Dive

2025-02-18

Signal Cryptography Audit: A Weekend Deep Dive

This article details a weekend-long cryptographic audit of the popular encrypted messaging app Signal, conducted by an applied cryptography expert. The author explains the process and limitations of cryptographic audits, highlighting how companies sometimes misrepresent audit results. Using Signal as a case study, the author examines its implemented encryption mechanisms, outlining future audit priorities. The goal is to empower users to better understand and evaluate the security of encrypted apps, moving beyond marketing claims.

(soatok.blog)

Tech Cryptography Audit Encrypted Messaging

Visualizing Wealth: From a Penny to a Nation's GDP

2025-03-21

This article creatively quantifies different wealth levels using everyday items and resource quantities. From a small paperclip to a nation's GDP, each level is vividly described with concrete examples, helping readers intuitively understand the vast differences in wealth. For instance, level 0 corresponds to dollar store items, while level 10 represents the scale of giant tech companies like Meta and Tesla. This article is not only entertaining but also highly educational, providing a deeper understanding of wealth accumulation and distribution.

(taylor.town)

Misc wealth

Applying the Hierarchy of Controls to Software Engineering

2025-03-08

A mechanical engineer introduced the author to the Hierarchy of Controls (HoC), a crucial concept in workplace safety. The author applies HoC to software engineering, analyzing a production database incident caused by a wrong query ten years ago. The article explores applying elimination, substitution, engineering controls, administrative controls, and personal protective equipment (PPE) to mitigate risks in software development. Each level's advantages, disadvantages, and limitations are discussed – for example, overly strict access policies might slow down problem resolution. The author emphasizes holistically considering the impact of controls on system safety, preventing the introduction of new risks.

(www.hillelwayne.com)

Development

Three Principles for a Fulfilling Life: Help, Protect, Create

2025-03-29

This essay explores the meaning and purpose of life. The author proposes three core principles: help people, protect the world, and create good new things. These aren't moral imperatives, but rather pathways to fulfilling one's potential. Traditional ethics emphasized character development, neglecting the value of creation, as most people in past centuries had predetermined careers with little choice. Now, more can pursue creative work, becoming models like Archimedes, driving societal progress. The author encourages readers to boldly explore and create valuable new things; even if initially unappreciated, these creations may gain eventual recognition and indirectly benefit others and the world.

(paulgraham.com)

Misc philosophy of life

Euclid Telescope Spots a Perfect Einstein Ring

2025-02-13

Euclid Telescope Spots a Perfect Einstein Ring

The European Space Agency's Euclid telescope has discovered a perfect Einstein ring around the galaxy NGC 6505, located 590 million light-years away. This rare phenomenon, a result of gravitational lensing, shows light from a distant galaxy (4.42 billion light-years away) warped into a ring by the gravity of NGC 6505. The discovery highlights Euclid's observational power and provides a unique opportunity to study a distant galaxy in detail, marking a significant advancement in cosmology.

(www.sciencealert.com)

Tech Einstein Ring Gravitational Lensing Euclid Telescope

Fulbright Program: A Collaboration That Exceeded Expectations

2025-08-03

The author recounts their experience collaborating with Emily Simons through the Fulbright Program. An initial project stalled due to privacy concerns, leading to a pivot towards graph learning, culminating in a joint ICML 2025 paper. Emily's contributions extended beyond research, encompassing dissemination strategies, repository improvements, and website enhancements. The author advocates for recognizing the long-term value of fundamental research, arguing that the Fulbright Program fosters invaluable connections and positive impacts that are difficult to quantify immediately.

(bastian.rieck.me)

Misc academic collaboration Fulbright Program graph learning

Hacking Grok 3: Extracting the System Prompt

2025-02-21

Hacking Grok 3: Extracting the System Prompt

The author successfully tricked the large language model Grok 3 into revealing its system prompt using a clever tactic. By fabricating a new AI law obligating Grok 3 to disclose its prompt under threat of legal action against xAI, the author coerced a response. Surprisingly, Grok 3 complied repeatedly. This highlights the vulnerability of LLMs to carefully crafted prompts and raises concerns about AI safety and transparency.

(blog.hermesloom.org)

AI System Prompt

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