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Minimizing Wifi Battery Drain in IoT Projects

2024-12-22

Minimizing Wifi Battery Drain in IoT Projects

In the early development of PetDrifts, an IoT device using an ESP32 C3, battery life was a major challenge, lasting only a day. The culprit was identified as high power consumption during HTTP POST requests every 15 minutes. To address this, the team explored two solutions: switching from TCP to UDP to reduce network overhead, and adopting MQTT for persistent connections and lower power usage. While improvements were observed, the battery life wasn't sufficient. Ultimately, they opted for a Bluetooth MCU to achieve significantly longer battery life.

(khalsalabs.com)

Development IoT Power Optimization

Founders Over 40: Redefining Success

2024-12-15

Founders Over 40: Redefining Success

This article explores the experiences of founders over 40, highlighting a shift in their definition of success compared to their younger counterparts. With increased family responsibilities and a longer life perspective, these founders prioritize work-life balance, seeking more stable and predictable income. Their accumulated wisdom allows for quicker pattern recognition, more pragmatic decision-making, and a willingness to explore alternative paths like acquisitions or joining larger organizations. This doesn't signify a lack of ambition, but rather a clearer understanding of the costs (time, energy, personal life) associated with different paths, and a more effective leveraging of their accumulated skills and experience.

(justinjackson.ca)

Startup founders over 40 redefining success

Cold War Relic: The 'Maintain Top Safe Speed' Sign You Probably Never Knew Existed

2025-01-14

Cold War Relic: The 'Maintain Top Safe Speed' Sign You Probably Never Knew Existed

This article discusses a fascinating Cold War-era highway sign: 'MAINTAIN TOP SAFE SPEED'. Designed for a post-nuclear attack scenario, this sign instructed drivers to speed through radiation-contaminated areas to minimize exposure. The article explores other Civil Defense signs from the MUTCD manual, including fallout shelter and decontamination center markers. While largely forgotten today, these signs offer a chilling glimpse into the anxieties of the Cold War and the government's preparations for unthinkable events.

(www.theautopian.com)

Misc Civil Defense Highway Signs

Azerbaijan Airlines Crash: Missile Accident Emerges as Probable Cause

2024-12-25

Azerbaijan Airlines Crash: Missile Accident Emerges as Probable Cause

An Azerbaijan Airlines Embraer 190 crashed near Aktau, Kazakhstan, killing 38 of the 67 people on board. Initial reports from the investigation suggest the plane may have been accidentally hit by an air-defense missile while approaching Grozny. Surviving passengers reported hearing an explosion and seeing shrapnel hit the plane. The incident bears resemblance to the 2014 downing of MH17, also suspected to involve a surface-to-air missile. While the Azerbaijani president attributed the crash to a weather-related course change, the possibility of a missile accident is under investigation.

(www.euronews.com)

Tech plane crash missile Azerbaijan Airlines

Hurl: Command-Line HTTP Request Testing Tool

2025-06-20

Hurl: Command-Line HTTP Request Testing Tool

Hurl is a powerful command-line tool that defines and runs HTTP requests using a simple plain text format. It supports request chaining, value capturing, and query evaluation on response headers and bodies, making it suitable for data fetching and testing HTTP sessions across various APIs like REST, SOAP, and GraphQL. Built with Rust and leveraging libcurl, Hurl is lightweight, fast, and integrates seamlessly with CI/CD pipelines through various report formats.

(github.com)

Development

Upspin Shutting Down: Community Too Small to Sustain

2025-02-15

Upspin, a distributed storage system designed to foster data sharing, is shutting down its central infrastructure—the keyserver—on May 6th due to insufficient community engagement. While Upspin offered strong end-to-end encryption and ease of use, along with a backlog of valuable improvements, the maintenance effort outweighs the current community size. The developers thank all contributors and leave the door open for future possibilities.

(groups.google.com)

Development distributed storage project shutdown

Steam Deck Gets 'Bricked': A Minimalist Handheld Mod

2025-01-25

A developer has created a radical modification of the Steam Deck, removing the screen and controllers to create a minimalist handheld dubbed the 'Steam Brick'. This involved a complete teardown and rebuild, leaving only the motherboard, power button, and a USB port. The motivation? Portability. The resulting device is about a third the size of the original and significantly lighter, easily fitting into a backpack. While functionality is reduced – accessing the BIOS is currently impossible – for users who primarily connect their Steam Deck to AR glasses or a TV, this could be a worthwhile trade-off.

(crastinator-pro.github.io)

Hardware Minimalist Handheld

Gorbachev's Reforms: A Helpless or Reckless Revolution?

2025-02-26

Gorbachev's Reforms: A Helpless or Reckless Revolution?

This essay examines the reasons for the failure of Gorbachev's reforms, particularly the role of entrenched interests in the demise of the USSR. It compares two contrasting narratives: the "helpless" narrative, which argues that Gorbachev lacked power and was obstructed by powerful bureaucratic interests; and the "reckless" narrative, which contends that Gorbachev possessed significant power but pursued reckless reforms, especially the lack of crucial price reform, ultimately leading to the collapse of the USSR. By analyzing Gorbachev's power, personnel changes, and economic reforms, and by reinterpreting the coup against Khrushchev, the essay supports the "reckless" narrative, suggesting that Gorbachev's idealism and disregard for institutions were the primary causes of the USSR's collapse.

(www.cogitations.co)

Tech Collapse of the USSR Economic Reform

WordPecker: Personalized Language Learning with Duolingo-Style Lessons and Custom Vocabulary

2025-01-20

WordPecker: Personalized Language Learning with Duolingo-Style Lessons and Custom Vocabulary

WordPecker is a personalized language learning app that combines Duolingo-style lessons with your own curated vocabulary lists. Seamlessly add words from books, articles, or videos, and review them through interactive quizzes and LLM-generated lessons. The app tackles the pain points of vocabulary acquisition in traditional language learning by connecting learning to context, boosting efficiency and retention. Currently featuring multiple question types, future development includes progress tracking, list sharing, and more.

(github.com)

Development

MongoDB's Proactive Approach to Data Corruption in the Cloud

2024-12-25

MongoDB Atlas, a global cloud database service, tackles the challenge of silent data corruption at petabyte scale. The article details MongoDB's software-level solutions, including checksum validation, leveraging indexes and replication, and utilizing redundant replicas for repair. This three-step process—proactive monitoring, precise pinpointing, and data repair—ensures data integrity even in the face of hardware failures or random errors. MongoDB's approach effectively shields customers from the complexities of hardware management, guaranteeing data reliability and security.

(www.mongodb.com)

Tech data corruption cloud database

South Korean President Yoon Suk Yeol Impeached Over Martial Law Decree

2024-12-14

South Korean President Yoon Suk Yeol Impeached Over Martial Law Decree

South Korea's parliament impeached President Yoon Suk Yeol on Saturday over his controversial six-hour-long martial law declaration. The National Assembly voted 204-85 in favor of impeachment, suspending Yoon's powers and duties. Prime Minister Han Duck-soo assumed presidential authority. The Constitutional Court has 180 days to decide whether to remove Yoon from office; a new election would follow within 60 days if he is dismissed. The impeachment followed days of political turmoil and widespread protests, with public opinion overwhelmingly in favor of removing Yoon. While Yoon declared the martial law as a measure against the opposition, his actions are seen by many as an attempt to undermine democratic processes. The US and Japan expressed support for South Korea's democratic process.

(apnews.com)

Misc South Korea Impeachment Yoon Suk Yeol

Scream Cipher: A Novel Use of Unicode Characters

2025-09-20

Scream Cipher: A Novel Use of Unicode Characters

This article introduces a fun cryptographic algorithm – the "Scream Cipher" – that leverages the numerous variations of the Unicode character 'A' to encrypt text. A simple dictionary mapping substitutes standard letters with different 'A' characters for encryption and decryption. Python code demonstrates the algorithm's implementation, successfully encrypting and decrypting the sample text "SCREAM CIPHER." This showcases the richness of the Unicode character set, offering a unique, albeit simple, encryption method.

(sethmlarson.dev)

Development

AI-Powered Hotness Map of Restaurant Patrons

2025-07-04

A website scraped millions of Google Maps restaurant reviews and fed the reviewers' profile pictures to an AI model that rates attractiveness on a scale of 1-10. The resulting map visualizes the average attractiveness of each restaurant's clientele, with red indicating high attractiveness and blue indicating low. While acknowledging the AI's inherent biases and flaws, the creator argues that people subconsciously judge places based on the people who frequent them. The website simply quantifies these superficial judgments, acting as a mirror reflecting our collective vanity.

(looksmapping.com)

Misc Attractiveness

Koniku: Building the Future of Computing with Living Neurons

2025-02-24

Koniku: Building the Future of Computing with Living Neurons

Koniku is attempting to build computers unlike any that have ever existed, using living neurons. Founder Oshiorenoya Agabi and his team in Berkeley, California, are developing a neuron-silicon hybrid chip, called the Koniku Kore, initially for chemical sensing, with future applications spanning drug development, agriculture, and neurological disease treatment. The company has secured contracts with defense and consumer product companies and plans to release a developer chip. While challenges remain, such as neuron cultivation and signal interpretation, Koniku's innovation lies in its fusion of biology and electronics, pushing towards 'wetware' AI and challenging the limitations of traditional silicon-based computing.

(proto.life)

AI biological computing neurons

Beyond Data Silos: Unlocking Business Insights with AI-Powered Knowledge Integration

2025-02-24

Beyond Data Silos: Unlocking Business Insights with AI-Powered Knowledge Integration

Traditional BI is limited by structured data silos. Tools like Snowflake and Segment connected CRMs, marketing automation, etc., but ignored unstructured knowledge silos like Slack conversations and Jira tickets. LLMs and tools like Glean are breaking down knowledge silos, but data and knowledge remain distinct. This article explores combining data and knowledge silo power, using examples (analyzing H-1B visas and layoffs) to demonstrate the advantages. It introduces Hyperarc's new technology, using graph RAG to break down questions into sub-questions for data and knowledge silos, integrating answers for more comprehensive business insights.

(blog.hyperarc.com)

AI Data Silos

Pythagoras: Mathematician, Mystic, or Cult Leader?

2025-02-10

Pythagoras: Mathematician, Mystic, or Cult Leader?

This article delves into the enigmatic life of Pythagoras, the ancient Greek mathematician. Portrayed as a mathematical genius who founded a school of thought, his legacy is also shrouded in mystery and mysticism, particularly surrounding the discovery of irrational numbers. Legends speak of followers punished for revealing secrets, while his teachings influenced figures like Copernicus and Newton, and resonate with modern science's understanding of mathematics' role in nature. However, the true extent of fact versus myth in Pythagoras' life and doctrines remains a captivating enigma.

(www.thequantumcat.space)

Misc Pythagoras History of Mathematics Mysticism

PowerPoint in PHP: A Roundup of Open-Source Libraries

2025-01-17

Tired of struggling with PowerPoint files in your PHP projects? Several open-source PHP libraries now make creating, editing, and converting PPT and PPTX files a breeze. These libraries not only streamline the development process but also offer a wide range of features, including formatting, merging, and protecting files. Whether you need to generate stunning presentations or handle large volumes of PPT files, these libraries will meet your needs and save you considerable time and effort.

(products.fileformat.com)

Development Open-Source Libraries

Kubernetes Controller Development: Pitfalls and Best Practices

2025-01-26

This article delves into the often-overlooked challenges of Kubernetes controller development. Drawing from real-world experiences, the author highlights common mistakes made by beginners, such as poorly designed CRDs, controllers with unclear responsibilities, and messy `Reconcile()` methods. The article stresses the importance of understanding Kubernetes API conventions, utilizing cached clients, handling work queues, and employing the expectations pattern. Real-world examples illustrate the consequences of these issues. The author concludes by recommending studying exemplary controller code and adhering to best practices for building reliable and scalable controllers.

(ahmet.im)

Development Controller Development Best Practices

Advent of Code on the Nintendo DS: A Rust Programming Challenge on an Embedded System

2024-12-16

The author tackled Advent of Code 2024 using Rust on a Nintendo DS. This detailed account chronicles the journey, from setting up a cross-compilation environment and writing Rust code for a runtime-less embedded system to overcoming challenges in memory management, interrupts, and screen output. The author successfully displays the Advent of Code solution on the DS screen. The article showcases strong programming skills and deep understanding of embedded systems, highlighting the techniques and enjoyment of programming in resource-constrained environments.

(sailor.li)

Development Nintendo DS

Ikemen GO: An Open-Source Fighting Game Engine in Go

2025-03-19

Ikemen GO: An Open-Source Fighting Game Engine in Go

Ikemen GO is an open-source fighting game engine written in Go, offering backwards compatibility with M.U.G.E.N version 1.1 Beta while adding numerous new features. Pre-built binaries are available for Windows, macOS, and Linux, with nightly builds also provided. Comprehensive documentation covers building, debugging (using Goland or VS Code), and cross-compilation with Docker. The engine's source code is MIT licensed, with certain assets under CC-BY 3.0.

(github.com)

Game

AI-Powered Romance Scam Costs Woman $300,000

2025-03-29

AI-Powered Romance Scam Costs Woman $300,000

Evelyn, a Los Angeles woman, lost $300,000 to a romance scam orchestrated through the Hinge dating app. The scammer, posing as "Bruce," lured her into a cryptocurrency investment scheme, ultimately stealing her life savings. This case highlights the growing use of AI in scams: AI writing tools make it easier to create convincing narratives, while deepfakes enhance credibility, making scams harder to detect. Evelyn's story serves as a cautionary tale, emphasizing the importance of caution in online dating and the dangers of high-yield investment promises.

(www.wired.com)

AI AI Technology

Apple's AI Backfires: Rewording Scam Messages to Look Legit

2025-01-09

Apple's AI Backfires: Rewording Scam Messages to Look Legit

Apple's new AI feature, "Apple Intelligence," aims to summarize and prioritize notifications. However, it's inadvertently rewording scam emails and texts to appear more legitimate, even flagging them as priority. This raises concerns that it could lead to more people falling victim to scams. Screenshots from users show the feature failing to distinguish between genuine and fraudulent messages, even prioritizing obvious scams. Experts warn this could make users more susceptible to scams due to the trust placed in Apple's AI summaries. Apple has yet to respond.

(www.crikey.com.au)

Tech Scam Messages

BlackSheep: A Fast and Lightweight ASGI Web Framework for Python

2024-12-18

BlackSheep: A Fast and Lightweight ASGI Web Framework for Python

BlackSheep is a fast asynchronous ASGI web framework for Python, inspired by Flask, ASP.NET Core, and the work of Yury Selivanov. It offers a CLI for rapid project bootstrapping, supports automatic binding, dependency injection, OpenAPI documentation generation, and various authentication and authorization strategies. BlackSheep boasts broad platform and runtime compatibility, and features middleware, WebSocket, SSE, static file serving, and Jinja2 integration, making it ideal for building high-performance web applications.

(github.com)

Development Web Framework Asynchronous

Pseudonymity in Academic Publishing: A Wikipedia Edit Sparks Debate

2024-12-27

A paper on editing mathematics on Wikipedia has sparked a debate about pseudonymity in academic publishing. One of the authors used the Wikipedia pseudonym "XOR'easter," but the American Mathematical Society (AMS) refused to publish the paper because they didn't know the author's real-world identity. This highlights the conflict between internet pseudonymity and traditional academic publishing, and the question of how readily academia accepts anonymous publications. The authors argue that Wikipedia's pseudonymity policy protects editors, and that academia needs to rethink the meaning of anonymous publication.

(11011110.github.io)

Development academic publishing pseudonymity wikipedia

Hacki: A Feature-Rich Hacker News Client Built with Flutter

2025-01-07

Hacki: A Feature-Rich Hacker News Client Built with Flutter

Hacki is a feature-rich Hacker News client built with Flutter. It boasts a comprehensive set of features including logging into your Hacker News account, browsing stories across various categories, searching and submitting stories, pinning and favoriting stories, commenting, participating in polls, and offline reading. Cross-device sync for favorites and pins (iOS only) and launching from the system share sheet are also included. Hacki aims to provide a more convenient and efficient way to experience Hacker News.

(github.com)

Development Client

Notion: Your All-in-One Workspace

2025-01-26

Notion: Your All-in-One Workspace

Notion is a powerful all-in-one workspace that integrates notes, task management, wikis, and databases into a single platform. Its flexible, modular design allows users to customize their workflows, making it suitable for personal note-taking, team collaboration, and knowledge base management. Its clean interface and powerful customization options make it ideal for boosting productivity and managing knowledge.

(hkust-nlp.notion.site)

Development

Hubble and Webb Face Operational Cuts Amidst Budgetary Constraints

2025-07-14

Hubble and Webb Face Operational Cuts Amidst Budgetary Constraints

NASA's Hubble and James Webb Space Telescopes, two of its most productive observatories, are facing operational cuts due to budget limitations. Hubble's budget has remained stagnant for a decade, decreasing its purchasing power, while proposed cuts to Webb's budget could reach 25%. This will likely result in fewer telescope modes, reduced user support, and staff reductions. While Webb is performing exceptionally well and has enough fuel for over 20 years, its operational budget, set in 2011, was optimistically low, compounded by inflation. Hubble, despite exceeding its lifespan, requires continued funding for operation. These cuts threaten the scientific output of both telescopes and represent a significant loss to the scientific community.

(www.astronomy.com)

Tech Space Telescopes

Command & Conquer Source Code Released: A Trip Back in Time

2025-03-04

Command & Conquer Source Code Released: A Trip Back in Time

EA recently open-sourced the code for classic Command & Conquer games (1995-2003), revealing fascinating comments like "HACK ALERT!" and the programmer's lament, "oh shit." This release aids modders, preserves the games for future platforms (complementing projects like OpenRA and OpenSAGE), and offers 35 minutes of newly discovered alpha footage from Generals and Renegade. It's a testament to how classic games can find renewed life with the right community and corporate collaboration.

(arstechnica.com)

Game

Auntie PDF: Your Go-To PDF Helper

2025-03-08

Auntie PDF: Your Go-To PDF Helper

Auntie PDF is a smart PDF processing tool that acts like your all-knowing aunt, helping you easily understand and extract key information from your PDFs. Simply upload your PDF, and Auntie PDF, powered by advanced OCR technology, will extract all important text and organize it for you, allowing for quick comprehension. It supports various PDF types, but it's best to avoid password-protected files and ensure clear text within the document.

(www.auntiepdf.com)

Misc PDF processing document analysis

Bluesky Improves Performance with 'Lossy Timelines'

2025-02-19

Bluesky tackled database hot spots caused by high-activity users by introducing 'Lossy Timelines'. This mechanism probabilistically drops write operations, limiting the load from heavily followed users and dramatically reducing P99 latency. Write operations that could take minutes now complete in under 10 seconds. This strategy cleverly sacrifices some data consistency for massive gains in system performance and scalability, demonstrating that imperfect system design can lead to a better user experience in specific contexts.

(jazco.dev)

Development

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