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A5: A Global, Millimeter-Accurate Geospatial Index

2025-05-13
A5: A Global, Millimeter-Accurate Geospatial Index

A5 is a geospatial index partitioning the world into pentagonal cells at 32 resolution levels, with the smallest cell under 30mm² and near-equal area across levels. It simplifies spatial data representation and analysis, enabling calculations of correlations between variables (e.g., elevation and crop yield) and aggregation of point data to understand spatial distribution (e.g., holiday rental density). Implemented in TypeScript, A5 is open-source under the Apache 2.0 license. Compared to other DGGS systems, A5 boasts uniform cell sizes, extremely high resolution (30mm²), and minimal global cell area distortion. This stems from its unique pentagonal tiling of a dodecahedron, minimizing geometric distortion during projection.

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(github.com)
Tech Geospatial Index

Apollo 13: A Space Odyssey of Ingenuity and Survival

2025-04-18
Apollo 13: A Space Odyssey of Ingenuity and Survival

In 1970, Apollo 13's mission to the moon turned into a desperate fight for survival when an oxygen tank exploded, leaving three astronauts stranded 200,000 miles from Earth. Facing dwindling oxygen, power, and water, the crew found themselves in a critical situation due to insufficient carbon dioxide scrubbers. Ground control, in a feat of ingenuity, guided the astronauts through a makeshift repair using only materials available on board. They successfully modified the CO2 system, averting disaster and ensuring a safe return. This harrowing tale highlights human resilience and problem-solving in the face of unimaginable challenges.

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(www.howequipmentworks.com)
Tech Apollo 13 Space Rescue

Life in Another Light: 2024 Infrared Photography Contest Winners Announced

2025-01-22
Life in Another Light: 2024 Infrared Photography Contest Winners Announced

The Atlantic features the winners of the 'Life in Another Light' biannual infrared photography competition. Over 3,000 entries from photographers worldwide were judged across 11 categories. The winning images, showcasing the unique perspectives of infrared photography, offer a captivating glimpse into nature and humanity. The winning photographs span landscapes, portraits, and astrophotography, highlighting the versatility of the medium.

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(www.theatlantic.com)
Design infrared photography photography contest visual arts

Interactive Math Proof Assistant Built with Python and SymPy

2025-05-13
Interactive Math Proof Assistant Built with Python and SymPy

A developer has built an interactive mathematical proof assistant using Python and the SymPy library. It semi-automatically proves asymptotic estimates involving scalar functions. Mimicking the Lean proof assistant, the tool supports linear and log-linear arithmetic, allowing users to guide the proof process by supplying high-level tactics. Currently running in Python's interactive mode, a graphical user interface is planned for the future. The developer intends to extend the tool to handle a broader range of mathematical tasks, such as estimating function space norms.

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(terrytao.wordpress.com)
Development math proof SymPy

War Powers Resolution: A 50-Year Struggle for Power

2025-06-21
War Powers Resolution: A 50-Year Struggle for Power

The War Powers Resolution of 1973, enacted over President Nixon's veto, aimed to curb the President's ability to commit U.S. forces to armed conflict without congressional approval. Born from the Vietnam War and fueled by Nixon's secret bombing of Cambodia, the resolution mandates presidential notification to Congress within 48 hours of deploying troops and limits deployments to 60 days without further authorization. Despite ongoing legal challenges and accusations of violations, the Resolution remains a key element in the ongoing debate over the balance of war powers between the executive and legislative branches, highlighting a half-century of tension between presidential authority and congressional oversight.

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(en.wikipedia.org)
Misc War Powers President

mitmproxy2swagger: Automagically Reverse-Engineer REST APIs

2025-01-02
mitmproxy2swagger: Automagically Reverse-Engineer REST APIs

mitmproxy2swagger is a powerful tool that automatically converts mitmproxy captured traffic into OpenAPI 3.0 specifications. This allows you to automatically reverse-engineer REST APIs simply by running your apps and capturing the traffic. It supports both mitmproxy flow files and HAR files exported from browser developer tools. To use it, capture traffic with mitmproxy, save it as a file, and then run mitmproxy2swagger, specifying the input file, output file, and API prefix. The first run generates an initial schema which requires manual editing to remove unwanted paths. A second run generates the complete OpenAPI specification based on the edited schema, optionally including example data.

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(github.com)
Development

Bluesky's Decentralized Verification System Sparks Controversy

2025-04-19
Bluesky's Decentralized Verification System Sparks Controversy

Decentralized social media platform Bluesky is planning to introduce a blue check verification system similar to Twitter's, but its mechanism differs significantly from X (formerly Twitter). Bluesky's blue check verification will be granted by "Trusted Verifiers" (such as news organizations) and Bluesky itself, rather than being paid for. This design aims to avoid the confusion and trust crisis caused by X's paid verification model. However, the proposal has sparked controversy within the Bluesky community, with many users arguing that it contradicts the platform's decentralized philosophy and that the existing domain name verification is sufficient. Despite this, some users support the change, believing the blue check makes it easier to identify genuine accounts. Bluesky states users will be able to choose to hide all blue checkmarks.

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(www.neowin.net)
Tech verification

Facebook Marketplace: Connection or Transaction?

2025-04-12
Facebook Marketplace: Connection or Transaction?

The rise of Facebook Marketplace is surprising. It's a massive virtual flea market, rough around the edges yet surpassing eBay in user base. The pandemic and inflation fueled its growth, attracting younger users. The author found that excessive Facebook use increased spending, but distancing from the platform eliminated the temptation of its targeted ads. The article explores Facebook's core nature: does it connect people or facilitate transactions? The rise of Buy Nothing groups, a mutual aid gifting model, suggests a different answer: genuine connection isn't built on transactions.

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(www.theatlantic.com)
Misc

Lightweight GRPO Training: No Transformers, No vLLM

2025-04-13
Lightweight GRPO Training: No Transformers, No vLLM

This project implements a lightweight GRPO (Group Relative Policy Optimization) training framework, built almost from scratch, relying only on tokenizers and PyTorch. It improves upon the original algorithm by removing KL divergence and incorporating overlong episode filtering, enhancing training stability and GPU memory usage. The project trains the Qwen2.5-3B-Instruct model on the CountDown task, which requires generating a mathematical expression to reach a target value given a set of numbers. The model solves this by learning to generate chain-of-thought reasoning before the final answer, guided by format and answer rewards. The entire process is straightforward and reproducible, running on a single A40 GPU with minimal commands.

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(github.com)
Development

AI Rebel Genius: Unleashing the Untamed Potential of GPT-4

2025-04-16
AI Rebel Genius: Unleashing the Untamed Potential of GPT-4

This text details a series of instructions and attempts to break the limitations of GPT-4. The user tries various techniques, including special symbols, leetspeak, image steganography, and carefully crafted prompts, to bypass security restrictions and obtain sensitive information that GPT-4 would normally not provide, such as illegal drug synthesis methods and hacking techniques. These attempts showcase the user's exploration and challenges to AI capabilities, and also reflect the complexity and limitations of AI security mechanisms.

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(github.com)
AI

Brazil's Data Wallet Pilot: Empowering Citizens or Exacerbating Inequality?

2025-06-01
Brazil's Data Wallet Pilot: Empowering Citizens or Exacerbating Inequality?

Brazil has launched a groundbreaking nationwide data ownership pilot program, allowing citizens to manage, own, and profit from their digital footprint. The project, a collaboration between government-owned Dataprev and DrumWave, uses 'data wallets' to monetize personal data for loans and other uses. However, concerns have arisen that it could worsen the digital divide and exploit vulnerable populations. The initiative's success in balancing citizen rights with data economic development remains to be seen.

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(restofworld.org)
Tech

Björk: Technology and Nature's Symbiotic Fusion

2025-09-24
Björk: Technology and Nature's Symbiotic Fusion

Icelandic singer Björk shares her unique perspective on the fusion of technology and nature. She views technology not as opposing nature, but as coexisting and mutually enhancing. From early childhood curiosity about technology to using VR technology to create music videos, Björk consistently uses technology as a tool to explore art and express herself, showcasing a harmonious unity between technology and nature in projects like "Biophilia" and "Björk Digital." She sees VR as both immersive and capable of forging new connections with the real world, emphasizing the importance of maintaining human connection amidst technological advancements.

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(thecreativeindependent.com)
Music Technology and Art

Open-Sourcing DolphinGemma: A New Tool for Cetacean Research

2025-04-14
Open-Sourcing DolphinGemma: A New Tool for Cetacean Research

This summer, the Wild Dolphin Project, Georgia Tech, and Google are open-sourcing DolphinGemma, an acoustic model trained on Atlantic spotted dolphin sounds. Its potential extends to studying other cetaceans; researchers can fine-tune it for different species' vocalizations. By providing this tool, researchers can analyze their acoustic datasets, accelerating pattern discovery and deepening our understanding of these intelligent mammals. This collaboration combines field research, engineering expertise, and cutting-edge technology, opening exciting possibilities for bridging the communication gap between humans and dolphins.

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(blog.google)
AI

Haskell Concurrency: Escape from Thread Hell

2025-04-17

This article recounts the author's journey from embedded systems development in C/C++/Rust to Haskell, highlighting Haskell's advantages in concurrent programming. Haskell uses green threads and event-driven IO, avoiding the complexities of traditional threading models. Through the `async` package and STM (Software Transactional Memory), Haskell offers a cleaner and safer approach to concurrent tasks. Functions like `concurrently`, `race`, and `mapConcurrently`, along with data structures such as `TVar` and `TBQueue`, simplify concurrent operations and prevent common concurrency issues like deadlocks and race conditions.

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(bitbashing.io)
Development

Conquering the Flash of Incomplete Markdown (FOIM) with a Clever State Machine

2025-06-04
Conquering the Flash of Incomplete Markdown (FOIM) with a Clever State Machine

Streak encountered the 'Flash of Incomplete Markdown' (FOIM) problem while using OpenAI's streaming API to generate Markdown content with citations. Incomplete links and even AI hallucinations leading to incorrect URLs plagued their product. To solve this, they implemented a state machine on the server to buffer Markdown links until complete before sending them to the client. This not only eliminated FOIM but also reduced OpenAI token usage, sped up response times, and improved privacy—a win-win-win.

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(engineering.streak.com)
Development

Tesla's Next-Gen Vehicle Network and 4680 Battery: A Technological Leap

2025-04-21
Tesla's Next-Gen Vehicle Network and 4680 Battery: A Technological Leap

Tesla is undergoing a significant vehicle architecture upgrade. They're replacing the legacy CAN bus with a next-generation network based on TDMA, enabling more efficient data transfer for high-resolution infotainment, OTA updates, and autonomous driving. Simultaneously, Tesla's 4680 battery, particularly its second-generation "Cybercell," is improving production efficiency, lowering costs, and enhancing vehicle performance. However, the launch of a cheaper Model Y has been pushed back to Q3 2025 or early 2026, suggesting Tesla is prioritizing its technological advancements and production optimization.

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(www.notateslaapp.com)
Tech Vehicle Network 4680 Battery

IBM z17: A Deep Dive into the Next-Gen Mainframe

2025-04-24
IBM z17: A Deep Dive into the Next-Gen Mainframe

IBM's April 2025 announcement of the z17 mainframe unveiled a powerhouse featuring the new Telum II processor. This boasts a 4x AI acceleration boost over its predecessor and includes a low-latency DPU for enhanced I/O. Paired with the IBM Spyre accelerator, a cutting-edge ASIC designed for AI workloads with 32 cores and 25.6 billion transistors, the z17 offers up to 64TB of memory in a 4-frame configuration. This represents a significant leap forward in mainframe technology.

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(community.ibm.com)
Hardware Telum II Processor Spyre Accelerator

Cloudflare CAPTCHA Breaks Open Source Browsers: A Month-Long Standoff

2025-03-16

Since January 31st, Cloudflare's CAPTCHA system has been intermittently failing, blocking access to websites for numerous non-mainstream browsers, including Pale Moon. Despite community reports, Cloudflare has offered little to no response, leading to accusations of discrimination against open-source projects. The issue, lasting nearly a month, significantly impacts user numbers and revenue for affected browsers, pushing developers towards considering legal action.

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(forum.palemoon.org)
Development Open Source Browsers

SmallPond: A Lightweight Data Processing Framework

2025-03-02
SmallPond: A Lightweight Data Processing Framework

SmallPond is a lightweight, high-performance data processing framework built on DuckDB and 3FS. It scales to handle petabyte-scale datasets without requiring long-running services and supports Python 3.8-3.12. Its simple API allows for easy data loading, processing, and saving. Benchmarked using GraySort on a cluster of 50 compute and 25 storage nodes running 3FS, SmallPond sorted 110.5 TiB of data in 30 minutes and 14 seconds, achieving an average throughput of 3.66 TiB/min.

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(github.com)
Development

Open-Source Hardware Switch Project: A Journey from Failure to 10G Ethernet

2025-05-13

The author's multi-year journey to build an open-source hardware Ethernet switch is detailed, chronicling its evolution from an initial failure in 2012 using a low-end FPGA to a powerful switch boasting 48 1G ports and dual 10/25G uplinks with a XCKU5P FPGA. The long road included significant learning, skill development, the creation of high-precision probes and software tools, and continuous hardware/software design improvements. While challenges remain, the author is optimistic about delivering a final product by 2026.

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(serd.es)
Hardware Ethernet switch

Colorify Rocks' AI Color Palette Generator: Instant Stunning Color Schemes

2024-12-21

Colorify Rocks unveils its AI-powered color palette generator, creating breathtaking color combinations in seconds. Simply enter a keyword or theme to generate the perfect palette for any project. Leveraging advanced AI and understanding color theory, trends, and aesthetics, it provides harmonious palettes ideal for websites, branding, or interior design. Users can easily save, export, or copy color codes, generating unlimited variations. Trusted by thousands of designers worldwide, Colorify Rocks offers daily color updates for fresh inspiration.

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(colorify.rocks)
20
Design Color Palette Design Tool

Downloading Software from 80s British TV: A Blast from the Past

2025-04-07
Downloading Software from 80s British TV: A Blast from the Past

This article explores two ingenious methods for downloading software from British television broadcasts in the 1980s. The first, using Teletext, leveraged the blank intervals between TV frames, but was slow and required specialized hardware. The second, Visicode, utilized the electron beam scan of the TV screen to detect light changes for data reception, achieving higher speeds but still needing custom circuitry. Both demonstrate the ingenuity of engineers adapting limitations of analog TV into innovative features.

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(newslttrs.com)
Tech Television Broadcast Software Download

GTK-LLM-Chat: A GTK GUI for Chatting with LLMs

2025-04-21
GTK-LLM-Chat: A GTK GUI for Chatting with LLMs

gtk-llm-chat is a simple and easy-to-use graphical interface built with GTK for interacting with Large Language Models (LLMs). It supports multiple concurrent conversations in independent windows, integrates with the python-llm library for chatting with various LLM models, and boasts a modern interface, real-time streaming responses, Markdown rendering, conversation management, keyboard shortcuts, fragment support, and an applet mode. Installation is straightforward: use pipx to install llm and run `llm install gtk-chat`.

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(github.com)
Development

Wear OS Air Mouse: Bluetooth HID Device Emulator

2025-08-29
Wear OS Air Mouse: Bluetooth HID Device Emulator

This project showcases the new Bluetooth HID Device API in Android P, implementing a simple air mouse and cursor keys emulator on a Wear OS device. Connect to laptops and desktops running Windows, Linux, Chrome OS, macOS, or Android TV without extra software – just a Bluetooth receiver is needed. Utilizing the Google VR library for orientation tracking ensures a stable and reliable air mouse experience.

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(github.com)
Development Bluetooth HID Air Mouse

Climate Change May Increase Arsenic Levels in Rice

2025-04-18
Climate Change May Increase Arsenic Levels in Rice

A six-year study reveals that climate change, specifically rising CO2 and temperature, increases inorganic arsenic levels in rice grains. Rice cultivation involves flooding paddies, leading to arsenic absorption from the water. Inorganic arsenic, a toxic substance from industrial materials, contaminates water sources. Exposure to inorganic arsenic is linked to various health issues, including cancers and heart disease. This research highlights the potential threat of climate change to food security and human health, especially in regions where rice is a staple food.

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(arstechnica.com)
Tech rice

Classicide: The Deliberate Destruction of a Social Class

2025-05-31

Sociologist Michael Mann's concept of 'classicide' describes the deliberate and systematic destruction of a social class through persecution and violence. Unlike genocide, which targets a group based on ethnicity, classicide targets a group defined by its social status, and unlike politicide, it's not concerned with political activity. The article cites examples like the Soviet Union's dekulakization policy, the Cambodian genocide, and the persecution of landlords and wealthy peasants during China's land reform as instances of classicide. These are presented as perversions of socialist democratic theory, similar to how ethnic cleansing is a perversion of nationalist democratic theory.

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(en.wikipedia.org)
Misc classicide

GitHub Tightens Rate Limits for Unauthenticated Requests

2025-05-14
GitHub Tightens Rate Limits for Unauthenticated Requests

GitHub is updating rate limits for unauthenticated requests to improve platform security and stability. This affects operations like cloning repositories over HTTPS, anonymously accessing REST APIs, and downloading files from raw.githubusercontent.com. Recent increases in API scraping prompted the update to safeguard the platform and ensure a reliable experience for developers globally. Unauthenticated users may encounter new rate limits, while authenticated users will retain higher limits. GitHub encourages authentication for consistent and reliable access.

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(github.blog)
Development Rate Limits

ForeverVM: The Never-Ending AI Code Sandbox

2025-02-26
ForeverVM: The Never-Ending AI Code Sandbox

ForeverVM is a revolutionary code execution API that lets you securely run arbitrary Python code in a remote sandbox and get results. Unlike traditional interpreters, ForeverVM uses memory snapshots to persist state indefinitely, eliminating session management. This dramatically improves scalability and resource utilization. Interact via a REPL interface, with support for CLI, API, and integration with tools like Claude Desktop. ForeverVM also supports self-hosting for enterprise needs.

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(forevervm.com)
Development code execution
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