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Quick Texture Generation: An XOR Texture Tutorial

2024-12-18

This tutorial explains how to generate an XOR texture, a simple texture created by XORing the x and y coordinates of each pixel. While not ideal for games or art, it's perfect for testing texture mappers. The article details the XOR operation, discusses the effect of texture size on color brightness, and shows how to generate similar textures using AND and OR operators. A 3D texture example using XOR is also presented.

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(lodev.org)
Development texture generation XOR operation

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.

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(sailor.li)
Development Nintendo DS

How Big Data Revolutionized the Modern Dairy Cow

2024-12-15

This article chronicles the US dairy industry's transformation into a global leader in cattle genetics, driven by big data and public-private partnerships. Starting with cow-testing cooperatives and the Babcock test, advancements like artificial insemination and cryogenic preservation, culminating in genomic sequencing, dramatically increased milk production. However, this success has led to inbreeding and climate change concerns. The future of dairy genetics requires balancing high yields with sustainability, necessitating industry collaboration and innovation.

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(worksinprogress.co)
Tech Big Data Cattle Genetics Agricultural Technology

Modelica Association: Efficiently Modeling Complex Systems

2024-12-16

The Modelica Association promotes the Modelica language and its associated tools. Modelica is an object-oriented language for modeling and simulating complex cyber-physical systems, particularly adept at acausal modeling of reusable components governed by mathematical equations. The association provides language specifications, tools, libraries, and community support to enable users to efficiently model systems.

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(modelica.org)
Development system modeling object-oriented

Framework Unveils New Expansion Bay Module and More

2024-12-17

Framework has released the first new module for the Framework Laptop 16's Expansion Bay system: the Dual M.2 Adapter, allowing users to add extra storage drives or other high-speed devices. They've also updated the Framework Laptop 16's CPU thermal solution, introduced 'Mystery Boxes' containing random parts to reduce e-waste, added 48GB DDR5 memory modules, new merchandise, and expanded shipping to more regions. These updates enhance both the product line and user experience.

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(frame.work)
Hardware Expansion Bay Module Hardware Upgrades

School Smartphone Ban Improves Sleep and Mood

2024-12-15

A three-week school smartphone ban experiment at the University of York showed significant improvements in students' sleep and mood. Students fell asleep 20 minutes faster on average, gained an hour of sleep nightly, and reported 17% less depression and 18% less anxiety. While cognitive improvements were modest, researchers suggest longer-term bans may yield greater benefits, informing policy decisions regarding smartphone use among young people.

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(www.york.ac.uk)
Misc smartphone ban sleep mood

A Decade-Old Fileserver's Second Life: Cost-Effective Storage Solution

2024-12-17

A company is still running a production machine, a fileserver over a decade old. While outdated, with a BMC requiring Java for KVM-over-IP, its 16 disk bays and 10G Ethernet ports make it ideal for repurposing. Used as a bring-your-own-disk low-cost storage server, it fulfills the need for high-capacity, low-performance storage despite its age and limited RAM. This highlights the value of reusing old hardware when requirements align.

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(utcc.utoronto.ca)
Tech server reuse storage solution hardware cost

Rust's Vec::drain: Leveraging Drop for Safety

2024-12-16

This article delves into Rust's Vec::drain method and its Drop implementation, showcasing how ownership prevents subtle bugs—memory-related and otherwise. Vec::drain optimizes performance by maintaining a mutable reference to the original vector and only reading/updating the original storage. The key lies in the Drain struct's Drop implementation, which uses a DropGuard to ensure that even if the iterator is dropped prematurely, remaining elements are safely moved back into the original vector, guaranteeing memory safety. The article thoroughly explains the implementation details of Drain and DropGuard, addressing special cases like zero-sized types and pointer provenance.

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(v5.chriskrycho.com)
Development

Drag and Drop Images into Bevy 0.15 on the Web

2024-12-15

This post demonstrates integrating web native APIs via WASM with Bevy 0.15 to enable drag-and-drop image functionality in a web browser. It details using wasm-bindgen, gloo, and bevy_channel_trigger to handle DOM events in Rust, extract file data, and pass it to the Bevy engine for image loading and rendering. The process mirrors JavaScript implementation but leverages Rust's capabilities, addressing error handling and event listener memory leaks. The result is a Bevy web application capable of loading and displaying dropped PNG images.

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(rustunit.com)
Development Web Development

Shape-Shifting Antenna Takes Inspiration From 'The Expanse'

2024-12-16

Researchers at the Johns Hopkins Applied Physics Laboratory have developed a novel shape-shifting antenna inspired by the science fiction series, 'The Expanse'. Using 3D-printed shape-memory alloy, the antenna dynamically adapts its shape through heating and cooling to meet various communication needs. Effectively operating from 4-11 GHz, this innovative design holds promise for 6G wireless communication, addressing the challenge of requiring multiple antennas for multi-band operation. While slower than alternative technologies, it offers advantages in power efficiency and frequency range, especially in systems needing to integrate diverse antenna types for optimal performance.

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(spectrum.ieee.org)
Tech shape-shifting antenna 6G communication

Microsoft to Delete Passwords for 1 Billion Users, Promoting Passkeys

2024-12-17

In response to a surge in cyberattacks, Microsoft announced plans to delete passwords for a billion users and aggressively promote the more secure passkeys. With password attacks nearly doubling year-over-year, Microsoft blocks 7,000 attacks per second. Passkeys, leveraging biometrics or PINs, offer superior security and convenience compared to traditional passwords. Microsoft is actively pushing users towards passkey adoption, aiming for a passwordless and more secure future.

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(www.forbes.com)
Tech cybersecurity passwords passkeys

U2 Drummer Larry Mullen Jr. Reveals Dyscalculia Diagnosis

2024-12-16

U2 drummer Larry Mullen Jr. has publicly revealed for the first time that he has dyscalculia, a learning disability that affects mathematical abilities. He shared that he struggles with basic counting and addition, describing the act of counting musical bars as 'like climbing Everest.' This candid admission offers insight into learning disabilities and showcases the musician's remarkable achievements despite facing significant challenges.

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(www.thetimes.com)
Misc Dyscalculia Learning Disability

MacOS GPU Optimization: Wasting Resources for Speed

2024-12-15

Anukari's developer encountered a bottleneck while optimizing GPU performance on MacOS. Due to limited system control over GPU performance, Apple's GPU performance regulation mechanism performed poorly in Anukari's use case, resulting in audio glitches. The developer implemented a workaround: dedicating a GPU threadgroup warp to useless computation to 'trick' the system into increasing GPU clock speed, significantly reducing audio latency and improving performance. While crude, this method proved effective in resolving MacOS performance issues. However, performance improvements varied significantly between different DAWs (Ableton and GarageBand), requiring further optimization.

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(anukari.com)
Development GPU optimization performance bottleneck

Optimistic Computing: A Path Towards Better Software

2024-12-15

This essay explores the concept of "Optimistic Computing," not as blind optimism, but as a convergence of several powerful ideas: simplicity and ease of use ("boot to kill"), local-first principles, and user empowerment. The author argues that by limiting dependencies, simplifying workflows, creating a seamless "just works" experience, and giving users more control, we can build more reliable, secure, and long-lasting software. This philosophy applies to both individual users and enterprise software development, ultimately aiming for a digital world that respects user privacy and data ownership.

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(www.deobald.ca)
Development optimistic computing local-first

Microsoft Open Sources Multilspy: Simplifying Language Server Client Development

2024-12-17

Microsoft has open-sourced Multilspy, a Python library designed to simplify building applications around language servers. Supporting Java, Rust, C#, and Python, Multilspy automates downloading server binaries, setup/teardown, and provides a simple API. It interacts with language servers to obtain static analysis results like code completion, symbol definitions, and references—crucial for AI-assisted code generation techniques such as Monitor-Guided Decoding.

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(github.com)
Development language server Python library AI-assisted code generation

IPv6: Schrödinger's Internet Protocol

2024-12-13

IPv6, designed to address the anticipated internet address exhaustion crisis, exists in a paradoxical state. Its deployment steadily expands, connecting more users and devices; yet it seems stalled, overshadowed by the enduring dominance of IPv4 solutions. This article explores the complexities of IPv6 adoption, including the role of NAT, IPv4 address transfers, and inconsistent vendor and application developer readiness. It analyzes different government strategies in promoting IPv6, and how incentives, vendor accountability, and capacity-building initiatives can foster adoption. Ultimately, it highlights IPv6's importance in preserving the internet as an open platform for innovation.

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(labs.ripe.net)
Tech Internet Protocol Network Technology

UK Watchdog to Issue New Guidance on Smart Device Data Privacy

2024-12-16

The UK's Information Commissioner's Office (ICO) will issue new guidance addressing data privacy concerns surrounding smart home devices. A Which? report revealed that some air fryers and other smart devices sent user data to servers in China. The ICO stated that consumers feel overwhelmed by the amount of data collected and lack control over its use. New guidelines, launching Spring 2025, will cover consent procedures, privacy information provision, and tools enabling users to exercise their rights.

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(news.sky.com)
Tech data privacy information security

Nottingham Scientists Discover New Type of Magnetism with Potential to Revolutionize Digital Devices

2024-12-16

Researchers at the University of Nottingham have discovered a new class of magnetism called 'altermagnetism,' where magnetic building blocks align antiparallel but with a rotated structure. Published in Nature, this finding could revolutionize digital devices. Altermagnets promise a thousand-fold increase in the speed of microelectronic components and digital memory, while offering improved robustness and energy efficiency, and reducing reliance on rare and toxic heavy elements. The team used X-ray imaging at the MAX IV facility in Sweden to confirm the existence and controllability of this new magnetic order.

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(www.nottingham.ac.uk)
Tech new magnetism digital devices microelectronics

Sweden Blames Germany's Nuclear Phase-Out for Soaring Energy Prices

2024-12-16

Sweden's Energy Minister Ebba Busch has blamed Germany's decision to phase out nuclear power for the country's soaring energy prices, announcing that the government is considering new measures to tackle the crisis. Busch expressed anger at Germany's actions, stating they have had serious consequences for Sweden and the EU. The rising prices, exacerbated by regional disparities and a spike in southern Sweden, are prompting the government to explore ways to support households and businesses. Despite the pressure, Sweden doesn't appear to be considering leaving the EU energy market, instead focusing on issues with the EU's Flow-Based Market Coupling system as a contributing factor.

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(www.euractiv.com)
Tech energy crisis nuclear phase-out Sweden energy policy

Go Protobuf's New Opaque API Improves Performance and Safety

2024-12-16

The Go team released a new Opaque API for Go Protobuf, coexisting with the existing Open Struct API. This new API decouples generated code from its underlying memory representation, leading to performance improvements, reduced memory allocations, and enabling optimizations like lazy decoding. By hiding struct fields and accessing them only through accessor methods, it prevents pointer-related bugs and accidental sharing. Migration involves enabling the Hybrid API, using the `open2opaque` tool, and then switching to the Opaque API. The existing Open Struct API remains supported.

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(go.dev)
Development

Backward-Incompatible GRUB2 Change Causes BIOS Boot Loop

2024-12-16

The author's Debian and Kali Linux systems experienced boot loops after a GRUB2 update added the command `fwsetup --is-supported`. Older GRUB versions didn't recognize this parameter. The issue stemmed from an older `efifwsetup.mod` module, leftover from a system backup restoration, causing a conflict between the new GRUB configuration and the old module. Installing the `grub-efi-amd64-bin` package resolved the problem. This highlights the importance of backward compatibility in software updates and the need to consider potential side effects when making partial changes in complex software like GRUB2.

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(op-co.de)
Development boot loop

Asynchronous Rust on Cortex-M Microcontrollers: A Deep Dive

2024-12-14

This article delves into the world of asynchronous Rust programming on Cortex-M microcontrollers. It explains the mechanics of Futures, cooperative scheduling, and asynchronous Rust executors, showcasing their efficiency in resource management. The innovative Embassy framework, designed to empower asynchronous programming on microcontrollers, is introduced. Through practical examples like a Blinky and Button program, the article illustrates the application of asynchronous Rust in embedded systems, comparing its advantages and disadvantages against traditional RTOS approaches. The conclusion highlights the significant benefits of asynchronous Rust in terms of resource utilization and concurrency.

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(interrupt.memfault.com)
Development Asynchronous Rust Embedded Systems

Adélie Linux 1.0-BETA6 Released: Enhanced Compatibility and Richer Features

2024-12-16

Adélie Linux has released its 1.0-BETA6, supporting 32-bit and 64-bit ARM, POWER, and x86 architectures, spanning smartphones, game consoles, and supercomputers. This release boasts over 35 new packages, updates to GCC 13, LLVM 18, Rust 1.80, and Linux kernel 6.6 LTS, along with improved GRUB and Wayland support. Numerous bugs have been squashed, and the user experience has been enhanced. While some known issues remain, the Adélie team is actively working on solutions and welcomes bug reports and feedback.

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(blog.adelielinux.org)
Development Linux distribution

Scientists Discover Four New Species of Portuguese Man-of-War

2024-12-14

Recent research has uncovered four new species of the Portuguese man-of-war, challenging our understanding of this venomous creature. Far from being a single organism, the man-of-war is a colony of four or five distinct individuals, each responsible for functions like floating, stinging, digestion, and reproduction. This unique colonial structure is a marvel of natural engineering. Adding to its intrigue, the man-of-war inflates its float using carbon monoxide and reproduces via a mysterious process with poorly understood larval development. Furthermore, a parasitic fish, the bluebottle, feeds on the man-of-war's tentacles and gonads, further highlighting the species' complexity.

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(crookedtimber.org)
Tech Portuguese man-of-war new species marine biology

WhatsApp: A Global Cultural Phenomenon

2024-12-14

WhatsApp has transcended its origins as a simple messaging app to become a global cultural force. The article uses Nigerian actress Etinosa Idemudia as an example, showcasing how WhatsApp is used for film promotion, fan engagement, and personal branding. From matchmaking in Bangladesh to news dissemination in India and religious activities in Indonesia, WhatsApp is ubiquitous, connecting people across the globe and becoming an indispensable part of daily life, even used for education and medical appointments. WhatsApp's success lies not only in Meta's business strategy but also in the diverse functionalities and cultural significance its users have imbued it with, transforming it into a platform that connects the world and reshapes how people communicate and live.

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(restofworld.org)
Misc social media global culture

US Fighter Jets Depicted on Russian School Wall Spark Controversy

2024-12-14

A new school in the Russian border town of Pechenga sparked controversy after images of F-16 fighter jets were painted on its walls. The images were quickly removed and replaced with Russian Su-57 jets. The school explained that the original drawings were of Su-27s, but the ambiguity led to the change. The incident, near the border with NATO members Norway and Finland, highlights regional tensions. A similar incident occurred at a naval base in Gadzhievo, where a US Los Angeles-class submarine was painted on a building before being replaced by a Russian submarine.

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(www.thebarentsobserver.com)
Misc Russia military United States

M87 Supermassive Black Hole Emits Astonishing Gamma-Ray Flare

2024-12-16

In 2019, the Event Horizon Telescope captured the first-ever image of a supermassive black hole at the center of galaxy M87. Now, an international team, including researchers from UCLA, has observed a teraelectronvolt gamma-ray flare from this black hole, tens of millions of times larger than its event horizon. This rare, decade-defining flare provides crucial insights into particle acceleration near black holes and could help solve the mystery of cosmic ray origins. UCLA played a significant role in the construction and data analysis of the VERITAS telescope, instrumental in detecting this event.

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(newsroom.ucla.edu)
Tech black hole gamma-ray flare cosmic rays

Veryfront Figma Kit: Design Stunning Websites in Minutes

2024-12-14

Veryfront's new Figma Kit allows users to design stunning websites in minutes. Boasting 100+ components, light and dark mode support, and full responsiveness, the kit streamlines the design process. Users simply choose components, build pages, add content, and seamlessly hand off designs to front-end developers. Its intuitive tools and pre-built components save time and boost creativity, earning praise from users who report a transformed design process and increased efficiency.

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(veryfront.com)
Design Website Design UI Components

Hyperbola GNU/Linux-libre: A Lightweight OS Committed to Freedom and Long-Term Support

2024-12-15

Hyperbola GNU/Linux-libre is a community-driven operating system project aiming to provide a fully free, stable, secure, simple, and lightweight long-term support distribution. It leverages Arch Linux's package management and Debian's security patches, adhering to the GNU Free System Distribution Guidelines. Supporting i686 and x86_64 architectures, Hyperbola plans to release a BSD-based system, HyperbolaBSD. Recent news includes continued support for 32-bit systems, discontinuation of Debian patchsets beyond version 12, and concerns expressed regarding the Free Software Foundation's statement on machine learning.

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(www.hyperbola.info)
Development Operating System Free Software
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