Nostalgic Game 'Alley Cat' Remake Released

2024-12-17

Programmer Joflof has finally completed a remake of the classic 1983 game 'Alley Cat' after many years of work. This remake not only retains the original pixel graphics and sound effects but also adds five new levels and multiplayer modes for up to four kittens to play simultaneously. Additionally, Joflof has included special arcade mode configuration options for arcade enthusiasts. Currently, the game is only available for Windows, but the author hopes that enthusiasts will help port it to Linux and Mac systems.

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Torpedo Juice: The Legendary WWII Booze

2024-12-19

During World War II, the US Navy used high-proof alcohol as torpedo fuel. Resourceful sailors tapped into this supply, mixing the alcohol with fruit juice to create the legendary "torpedo juice." This potent concoction, though harsh-tasting, became a popular drink among servicemen, representing a unique camaraderie and escape from the harsh realities of war. Despite the Navy's attempts to deter consumption by adding poisons, sailors devised ingenious methods of purification, even using bread as a filter. The story of torpedo juice embodies the ingenuity and resilience of soldiers during wartime.

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Network Security Breakthrough: Trapping Intruders in a 'Network from Hell'

2024-12-17

Researchers at the University of Oulu's SensorFu team have developed a novel network security defense system inspired by the LaBrea tarpit technique. The system intercepts ARP requests and delays SYN-ACK responses, creating a multitude of virtual devices on the network to confuse intruders. This forces attackers to waste significant time identifying real devices, providing administrators with crucial time to patch vulnerabilities. Tests showed the system extends scan times to hours, drastically reducing attack success rates. Lightweight, efficient, and easy to deploy, this system offers robust network protection for organizations of all sizes.

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Archive Team: Rescuing Digital History from the Brink

2024-12-18

Archive Team is a loose collective of archivists, programmers, and volunteers dedicated to preserving our digital heritage. Since 2009, they've been battling website shutdowns, data deletions, and more, striving to save historical information before it's lost forever. They actively participate in various data archiving projects, offering advice on data management and recovery. Current projects include saving data from platforms like Telegram and Cohost, along with ongoing efforts for sites such as Blogger, GitHub, and Imgur.

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Shanghai's Dual Faces: A Tale of Two Sides of the Huangpu River

2024-12-17

This article recounts the author's observations of Shanghai's architecture, focusing on the contrast between Puxi and Pudong. Starting with a 2005 visit, the author describes being captivated by Pudong's rapidly rising skyscrapers. Today, Pudong boasts the Oriental Pearl Tower, Jin Mao Tower, Shanghai World Financial Center, and Shanghai Tower, forming a stark contrast to the historical European-style buildings of Puxi. The author argues these structures are not just feats of engineering, but also symbols of China's economic development and cultural transformation, reflecting Shanghai's unique duality: a blend of historical heritage and modern dynamism.

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Japan's $33 Billion Gamble on Chip Manufacturing

2024-12-18

Japan is investing $33 billion in building semiconductor factories in remote areas like Hokkaido, aiming to reclaim its dominance in the chip industry. This has created a construction boom and attracted a large workforce, a stark contrast to the region's relatively sluggish job market. The ambitious project is a high-stakes gamble, but reflects Japan's determination to return to the forefront of technological innovation.

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Metformin's Secret Revealed: Mitochondria Hold the Key

2024-12-18

A new study unveils the precise mechanism of action for metformin, a widely used drug for Type 2 diabetes. Researchers discovered that metformin lowers blood sugar by interfering with mitochondria, the cell's powerhouses. Specifically, it blocks mitochondrial complex I, a crucial part of the cell's energy-producing machinery. This research, published in Science Advances, used genetically engineered mice to demonstrate that metformin targets disease-contributing cells without significantly harming healthy ones. This provides a deeper understanding of how this 'wonder drug' works.

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Brain's Active Role in Creating Mental 'Chapters' Revealed

2024-12-19

A new study in Current Biology unveils how the brain segments the continuous stream of daily experiences into distinct, meaningful events. This 'event segmentation' isn't just a passive response to environmental changes; it's an active process shaped by internal scripts based on past experiences and goals. Researchers used audio narratives and fMRI to demonstrate that brain activity, particularly in the medial prefrontal cortex of the default mode network, aligns with event boundaries determined by prioritized scripts. This active construction of mental 'chapters' is crucial for understanding, memory formation, and prioritizing information.

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Attention as Electromagnetic Field Line Management: A New Model of Consciousness

2024-12-17

Qualia Research Institute proposes a novel model of attention, conceptualizing it as the management of dynamic patterns in the brain's electromagnetic field. By simulating electric field lines arising from weighted sums of harmonic oscillations, researchers demonstrate how attention controls charge density by modulating underlying resonant modes, explaining seemingly random fluctuations and drifts in attentional behavior. This model also offers a potential explanation for psychedelic experiences, suggesting that psychedelics disrupt the normal flow of attention by altering the configuration of harmonic modes. The research provides a new lens for understanding consciousness and developing novel neuro-interventions, such as inducing exotic states of consciousness by non-invasively perturbing the phase locking of attention.

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No More Adam: Learning Rate Scaling at Initialization is All You Need

2024-12-18

Researchers introduce SGD-SaI, a novel optimizer improving stochastic gradient descent. SGD-SaI addresses training imbalances by scaling learning rates at initialization for different parameter groups based on their gradient signal-to-noise ratios. Significantly more memory-efficient than AdamW, SGD-SaI matches or surpasses AdamW's performance across various Transformer-based tasks, including ImageNet classification and LLM pretraining. Its robustness and practicality are demonstrated across diverse applications, making it a compelling alternative.

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AI

Apple and NVIDIA Partner to Accelerate LLM Text Generation

2024-12-18

Apple and NVIDIA have teamed up to integrate Apple's ReDrafter technology into NVIDIA's TensorRT-LLM, resulting in a significant speedup for large language model text generation. ReDrafter combines beam search and dynamic tree attention, achieving significantly faster text generation without sacrificing quality. This collaboration allows developers using NVIDIA GPUs to easily leverage ReDrafter's accelerated token generation for their production LLM applications, achieving a 2.7x speed increase in benchmark tests, reducing latency and power consumption.

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AI

Grug's Guide to Sound: A Caveman's Approach to High Fidelity

2024-12-17

Grug, a seasoned (though slightly confused) sound engineer, penned this guide to help young Grugs build the perfect cave sound system. The guide covers every component in the signal chain, from streamers to speakers, explaining key parameters like impedance, sensitivity, and distortion. Grug emphasizes low noise and low distortion, advising prioritization of high-quality speakers. Ultimately, Grug recommends a budget-friendly entry-level system, allowing young Grugs to enjoy high-fidelity music in their caves.

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Misc audio hi-fi

From Pickle Maker to King: The Untold Story of Khalid Sheldrake

2024-12-18

Bertie Sheldrake, grandson of a London pickle manufacturer, converted to Islam, changing his name to Khalid. He became a prominent figure in the British Muslim community, founding journals and ultimately accepting the kingship of the short-lived Islamic Republic of East Turkestan in Xinjiang. This incredible journey, from ordinary London life to a faraway kingdom and back to obscurity, adds a fascinating chapter to the history of 20th-century British Islam.

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Lightweight Self-Hosted Proxy PipeGate: A 'Poor Man's ngrok'

2024-12-17

PipeGate is a lightweight, self-hosted proxy built with FastAPI, designed as a "poor man's ngrok." It lets you expose your local servers to the internet, providing a simple way to create tunnels from your local machine to the external world. It's excellent for developers wanting to understand how tunneling services like ngrok work internally or needing a customizable alternative hosted on their own infrastructure. Key features include self-hosting, unique connections, customizability, lightweight design, and ease of learning. Installation is straightforward via git clone or pip.

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Python Meta-Circular Interpreter: Implementing a Python Interpreter in Python

2024-12-18

This article demonstrates how to create a Python meta-circular interpreter (MCI) using Python itself. An MCI is an interpreter written in the language it interprets, allowing implementation of a subset or superset of the host language. The author details the MCI's implementation, covering parsing Python source code, building an Abstract Syntax Tree (AST), traversing the AST and executing statements, and crucial concepts like scoping, symbol tables, and handling control flow statements (e.g., while loops and if statements). This example provides a deep understanding of interpreter mechanics and showcases how to leverage Python's AST module and built-in functions to build more complex interpreters.

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EQTY Lab, Intel, and NVIDIA Unveil Verifiable Compute AI Framework

2024-12-18

EQTY Lab, in collaboration with Intel and NVIDIA, announced the release of Verifiable Compute, a hardware-based solution for governing and auditing AI workflows. This framework provides real-time certificates of authenticity and compliance for AI training, inference, and benchmarks, ensuring explainability, accountability, and security. Leveraging next-generation hardware from Intel and NVIDIA, Verifiable Compute addresses escalating risks in AI supply chains, such as AI poisoning and data breaches. It integrates with tools like ServiceNow, Databricks, and Palantir, enabling responsible AI innovation and compliance with regulations like the EU AI Act. The solution is already deployed across various sectors, including life sciences, public sector, finance, and media.

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Swift's New Forked Framework Simplifies Shared Data Management

2024-12-17

Developer Drew McCormack launched Forked, a new Swift framework for simplifying shared data management across single and multiple devices. Inspired by Git's merge mechanism, Forked supports branching and merging within a single file, achieving eventual consistency. It doesn't require a complete change history, only enough versions for three-way merging. Forked uses structs instead of classes, supports Codable, and seamlessly integrates with cloud services like iCloud. It even tackles race conditions from concurrent access and supports custom merge logic or built-in CRDT algorithms. CloudKit sync is achieved with just a few lines of code.

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Befriending Ancient Philosophers: A Path to Self-Improvement

2024-12-18

This article explores the unique practice of 'befriending' ancient philosophers. Author Helen De Cruz recounts her personal journey of deeply engaging with Mencius and his historical context, engaging in a mental dialogue that provided guidance and self-improvement. This 'timeless friendship' not only enhanced her understanding of philosophical texts but also equipped her to navigate professional challenges and life decisions by drawing on ancient wisdom, cultivating virtue, and ultimately living a more fulfilling life.

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Debunking the RAM Myth: Optimizing Memory Access

2024-12-19

This article challenges the common misconception about modern computer memory—the RAM myth—that assumes memory access is always random and uniform. By analyzing data sharding algorithms, the author demonstrates that simple linear algorithms are inefficient for large datasets due to frequent cache misses. To address this, an optimized strategy based on radix sort is proposed. Techniques like pre-sorting data, using generators, and pre-allocating memory significantly improve data sharding efficiency. Experimental results show that the optimized algorithm achieves a 2.5 to 9x speedup when processing large datasets.

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Best Practices for Representing Inheritance in SQL Server Databases

2024-12-17

This article explores best practices for representing inheritance relationships in SQL Server databases. Three common approaches are presented: single table inheritance, concrete table inheritance, and class table inheritance. The advantages and disadvantages of each are detailed. Single table inheritance is simple but has scalability and data integrity issues; concrete table inheritance solves these but suffers from inefficient queries; class table inheritance balances simplicity and efficiency, making it the preferred choice in most scenarios. Alternative approaches using JSON for subtype-specific fields and normalized database design are also discussed.

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BlackSheep: A Fast and Lightweight ASGI Web Framework for Python

2024-12-18

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.

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MIT Rocket Team Recovers Data from Crashed Rocket

2024-12-18

In Spring 2020, the MIT Rocket team launched rockets at the FAR site in the Mojave desert. A second-stage rocket crashed without deploying its parachutes, burying itself 3 meters underground. Despite significant damage to the avionics, the team successfully recovered data from a damaged flash chip. Using a salt solution to create temporary electrical contact, they were able to read the flash memory and determine the cause of the crash.

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BYOJS: Embrace Native JavaScript for Web Development

2024-12-17

The BYOJS project champions building web applications with core JavaScript, rather than relying on heavy frameworks. While frameworks and languages like TypeScript are popular, BYOJS argues that building efficient web apps using the core JS language is a lost art. It encourages using loosely-coupled libraries instead of tightly-coupled frameworks, advocating for choosing the least powerful tool that gets the job done and prioritizing concise code. The project provides helpful utilities such as a simple key-value storage API, an asynchronous event emitter, a modal wrapper, and more. All code is MIT licensed.

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Saturn's Rings: Older Than We Thought?

2024-12-19

A new study challenges the long-held belief that Saturn's rings are relatively young. Previous research, based on data from the Cassini spacecraft, suggested an age of only a few hundred million years. However, a team led by planetary scientist Ryuki Hyodo used computer simulations to show that micrometeoroid impacts on the rings produce far less contamination than previously thought. This implies the rings could be billions of years old, as old as Saturn itself, predating even the dinosaurs. This finding significantly alters our understanding of early solar system evolution and points towards future missions for more detailed investigation.

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Design Tokens: The Key to Scalable and Consistent UI Architectures

2024-12-18

This article explores the role of design tokens in modern UI architecture. By representing design decisions as data, design tokens serve as a single source of truth, enabling automated code generation across platforms for faster updates and improved design consistency. It details the layered organization of design tokens (option, decision, and component tokens), automated distribution processes, and how to choose the appropriate number of layers and token scope. Finally, it discusses when design tokens are appropriate and their limitations, helping readers determine their suitability for their projects.

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GPS Technology Explained: From Simple Positioning to Global Navigation

2024-12-18

This article provides a comprehensive explanation of GPS technology. Starting with a simple 2D positioning system, the author gradually introduces key concepts such as 3D positioning, time measurement, satellite orbits, relativistic effects, and signal processing. Through clever analogies and vivid illustrations, the author explains how GPS uses signals emitted by satellites, combined with time and distance measurements, to accurately calculate the receiver's position and time offset. The article also explores the technical details of GPS signal encoding, decoding, and anti-interference capabilities, showcasing the profound scientific and engineering foundation behind GPS technology.

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Heat Accelerates Auto Chip Aging, Raising Safety Concerns

2024-12-18

New research shows that automotive chips are aging significantly faster than expected in hot climates, shortening the lifespan of electric vehicles and potentially creating new safety issues. In areas like Phoenix, Arizona, where high temperatures can persist for weeks, cabin temperatures can reach 93°C, severely impacting chip longevity. Studies reveal that for a chip designed for a 30-year lifespan, high temperatures reduce life expectancy by an additional 10% annually. Chipmakers are working to address this, requiring new materials, design redundancy, and active cooling solutions. Increased chip utilization due to autonomous driving exacerbates the problem. Proactive monitoring and predictive failure analysis will become crucial, impacting both vehicle reliability and safety.

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One Woman Dev Team Reaches Two Million Users

2024-12-17

Nadia Odunayo, a software engineer, built The StoryGraph, a reading community app with over a million users, as a solo developer. The StoryGraph helps users track their reading and recommends books based on mood and preferences. This inspiring story highlights Odunayo's grit, technical skills, and the 'one-person framework' she used to achieve this impressive feat. It offers valuable insights for aspiring solo developers.

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K8s Cleaner: Optimize Your Kubernetes Clusters

2024-12-18

K8s Cleaner is a Kubernetes cluster cleanup tool designed for administrators. It efficiently identifies and removes unused resources to boost cluster performance and reduce operational costs. Supporting all resource types, including CRDs, it offers pre-defined rules and customizable options (time-based, label-based, or custom Lua scripts). Notifications are sent via Slack, Email, and more, while a dry-run mode prevents accidental changes. K8s Cleaner streamlines Kubernetes resource management.

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