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Intel's Skymont: A Deep Dive into the E-Core Architecture

2025-01-18

Intel's Skymont: A Deep Dive into the E-Core Architecture

Intel's latest mobile chip, Lunar Lake, features Skymont, a new E-core architecture replacing Meteor Lake's Crestmont. Skymont significantly improves both multi-threaded performance and low-power background task handling. This article provides an in-depth analysis of Skymont's architecture, covering branch prediction, instruction fetch and decode, out-of-order execution engine, integer execution, floating-point and vector execution, load/store, and cache and memory access. While Skymont excels in some benchmarks, its advantages over Meteor Lake's Crestmont cores and AMD's Zen 5c cores aren't always clear-cut. This highlights the crucial role of cache architecture in CPU performance and the challenges of designing a single core architecture to handle both low-power and high-performance multi-threaded workloads.

(chipsandcheese.com)

Hardware E-core

MDN's Birthday: Cakes, Collaboration, and Community

2025-07-25

MDN's Birthday: Cakes, Collaboration, and Community

In the web world, exchanging cakes to mark milestones is a cherished tradition among browser makers. Microsoft famously sent cakes to Mozilla for Firefox releases, and now web.dev has gifted MDN a birthday cake, acknowledging MDN's significant contribution to the global developer community. Reaching millions of developers monthly and boasting over 100,000 contributors, MDN expresses gratitude to its passionate community, looking forward to 20 more years of empowering developers and building a better web together.

(developer.mozilla.org)

Development

Flat Lens Breakthrough: Full-Color Imaging from Distant Stars Now Possible

2025-03-03

Flat Lens Breakthrough: Full-Color Imaging from Distant Stars Now Possible

University of Utah researchers have developed a revolutionary flat lens capable of focusing light as effectively as traditional curved lenses, while maintaining accurate color. This breakthrough solves the bulk and cost issues associated with large-aperture lenses. The lens uses microscopically small concentric rings to manipulate light, avoiding the chromatic aberrations of Fresnel zone plates. This technology promises to transform astrophotography, especially in space-constrained applications like aircraft, satellites, and space-based telescopes. Tests using images of the sun and moon demonstrated its capabilities, paving the way for its use in large-scale astronomical observation equipment for sharper, more true-to-life images of the cosmos.

(phys.org)

Tech flat lens optical technology

Clinical Trials Bottleneck: Culture, Regulation, and Innovation Stalled

2024-12-20

Clinical Trials Bottleneck: Culture, Regulation, and Innovation Stalled

This blog post explores the high costs and inefficiencies of clinical trials. The authors argue the root problem lies in industry culture—an overemphasis on safety that neglects the risks of inaction. This leads to regulatory overreach, such as restrictions on patient compensation and slow adoption of innovative methods (like risk-based monitoring). The post calls for a cultural shift, increased transparency, and policy adjustments to incentivize innovation, ultimately speeding up drug development.

(www.writingruxandrabio.com)

Tech clinical trials regulation

Build Your Own Unsettling Vetinari Clock: A DIY Hack

2025-09-05

Inspired by Lord Vetinari's unsettlingly erratic clock from the Discworld series, a maker built a DIY clock with an irregularly ticking second hand. The project uses an ATtiny25 or PIC12F683 microcontroller and features open-source hardware and software designs. Clever firmware controls the clock, creating a seemingly random movement pattern over 32 seconds while maintaining accurate timekeeping. This fun project showcases embedded systems programming and provides complete hardware and software resources for replication and modification.

(www.waitingforfriday.com)

Hardware

SpaceX Starship V2 Test Failure: Design Flaws Cause Delay

2025-03-12

Anonymous sources suggest that parts of SpaceX's Starship will require a major redesign after its break-up shortly after stage separation on its last two test flights. The issues stem from fundamental miscalculations in the design of Starship V2, specifically within the fuel lines, engine wiring, and power unit, requiring urgent rework. The fate of S35 and S36 is unclear, with potential for revision or scrapping. Production of subsequent ships may be paused until design issues are resolved. Leaks suggest the next test flight is delayed until after June. However, the author believes the situation may not be as dire, as the issues seem localized and fixable. Furthermore, the FAA is no longer an obstacle, allowing SpaceX to lead the investigation and implement fixes.

(behindtheblack.com)

Tech Test Failure

XSLT 3.0: A Major Upgrade for XML Transformations

2025-08-30

XSLT 3.0 isn't just an incremental update; it elevates XSLT from an XML transformation tool to a general-purpose transformation language for common data formats like JSON and XML. It introduces JSON support with `json-to-xml()` and `xml-to-json()` functions for seamless conversion. Further improvements include simplified syntax with text value templates (TVTs), dynamic XPath expression evaluation, functions, typed variables, function packages, and exception handling, boosting code readability and maintainability. XSLT 3.0 also supports streaming and performance optimizations, making it ideal for large-scale data streams.

(www.xml.com)

Development

Warning: Leaving the U.S. Department of Transportation Website

2025-08-04

You are about to access a non-government link outside of the U.S. Department of Transportation's National Transportation Library. Please note: When you exit DOT websites, Federal privacy policy and Section 508 of the Rehabilitation Act (accessibility requirements) no longer apply. Additionally, DOT does not attest to the accuracy, relevance, timeliness, or completeness of information provided by linked sites. Linking to a website does not constitute an endorsement by DOT of the sponsors of the site or the products presented on the site.

(rosap.ntl.bts.gov)

Misc website link warning

Photographer and Chef Bourdain: Marrow, Tequila, and The Last Supper

2025-08-06

Photographer and Chef Bourdain: Marrow, Tequila, and The Last Supper

This article recounts the behind-the-scenes story of a photographer shooting a portrait of renowned chef Anthony Bourdain for her photography book, "My Last Supper." From the nervous preparation to unexpected moments during the shoot, and finally to the success of the photograph and Bourdain's own evaluation of it, the author uses delicate strokes to depict the friendship and shared pursuit of art between the two, as well as the complex emotions and meanings behind the photograph. Ultimately, a picture of Bourdain holding his daughter becomes a testament to their friendship and reflects the enduring charm of photographic works.

(www.melaniedunea.com)

Design Anthony Bourdain

NASA's Webb Telescope Faces Crippling Budget Cuts

2025-02-21

NASA's Webb Telescope Faces Crippling Budget Cuts

The $10 billion James Webb Space Telescope (JWST), halfway through its primary mission, is facing potential budget cuts of up to 20%. Despite unprecedented demand for JWST observation time, NASA's budget constraints necessitate cuts impacting proposal review, data analysis, observatory efficiency, and anomaly resolution. The success of JWST relies on robust scientific community engagement and public outreach, making these cuts a significant threat to future research.

(www.space.com)

Tech budget cuts

Gromit: A Fictional Dog as a Tech Hero

2025-01-06

This article humorously portrays Gromit, the claymation dog, as a tech hero, contrasting him with real-life tech moguls. A cautious and far-sighted engineer, Gromit consistently anticipates and solves the disasters caused by Wallace's inventions. The author argues that Gromit embodies the caution and rationality that technology should possess, contrasting sharply with the recklessness and irresponsibility of some real-world tech leaders. A fun anecdote about a connection to the Gromit models is also shared.

(cybershow.uk)

Tech Tech Satire

Grapevine Canes: A Sustainable Solution to Plastic Pollution?

2025-09-15

Grapevine Canes: A Sustainable Solution to Plastic Pollution?

Researchers at South Dakota State University have developed a plastic-like material from grapevine canes that is stronger than traditional plastic and biodegrades in just 17 days. This breakthrough addresses the urgent need for biodegradable packaging, tackling the pervasive issue of plastic waste and microplastics in the environment. The resulting films, made from the cellulose in grapevine canes, are transparent, strong, and leave no harmful residue after decomposition, offering a promising sustainable alternative to conventional plastics.

(www.sdstate.edu)

Tech biodegradable plastic

NASA's JPL Shuttered by Raging LA Wildfires

2025-01-09

NASA's JPL Shuttered by Raging LA Wildfires

NASA's Jet Propulsion Laboratory (JPL), a crucial center for robotic space exploration, has been temporarily closed due to the nearby Eaton wildfire. Hundreds of JPL employees have been evacuated from their homes, with many experiencing property loss. While JPL itself has escaped direct fire damage, strong winds caused some wind damage. The closure impacts NASA's ongoing missions, including the Perseverance and Curiosity rovers and the recently launched Europa Clipper. The Eaton fire is one of several large wildfires currently burning in the Los Angeles area, fueled by record-setting winds.

(www.space.com)

Tech Wildfires

EU Accuses Temu of Violating the Digital Services Act

2025-07-29

EU Accuses Temu of Violating the Digital Services Act

The European Commission has preliminarily found that Chinese e-commerce platform Temu is in breach of the Digital Services Act (DSA) for failing to properly assess the risks of illegal products sold on its website. The investigation revealed a high risk of illegal products, such as dangerous toys and electronics, on Temu's platform, citing an inaccurate risk assessment from October 2024 and insufficient mitigation measures. The EU could impose a fine of up to 6% of Temu's global annual turnover. Temu stated it will continue cooperating with the European Commission. The EU is also investigating other suspected DSA violations by Temu, including the effectiveness of its mitigation measures, addictive design features, and data access.

(www.euronews.com)

Tech

HyperPB: A Blazing-Fast Go Protobuf Parser Outperforming UPB

2025-07-24

HyperPB: A Blazing-Fast Go Protobuf Parser Outperforming UPB

This article introduces HyperPB, a remarkably fast Protobuf parser written in Go. Building upon the strengths of UPB (one of the fastest Protobuf runtimes), HyperPB leverages Go's register ABI and lack of undefined behavior for significant optimizations. Employing JIT compilation and online PGO, it surpasses both Protobuf Go's generated code and vtprotobuf in benchmark tests. At its core is a table-driven interpreter, enhanced with clever optimizations like zero-copy techniques, hot/cold data splitting, and arena reuse.

(mcyoung.xyz)

Development

Perlin Noise: The Magic Behind Procedural Terrain Generation

2025-03-08

Perlin Noise: The Magic Behind Procedural Terrain Generation

This article provides a clear explanation of the Perlin noise algorithm and its application in procedural terrain generation. Starting with examples like Minecraft, it illustrates how Perlin noise uses algorithms, not manual design, to create realistic natural textures and objects. The article details how Perlin noise works, provides a Python implementation, and shows how to adjust parameters (like scale, persistence, and lacunarity) to control terrain smoothness, detail, and complexity. Furthermore, it explores combining multiple layers of Perlin noise (fractal Brownian motion) and other techniques (moisture levels, radial dropoff, custom functions) to generate more refined terrain and even underground cave systems, ultimately showcasing the powerful potential of Perlin noise in game development and generative art.

(jdhwilkins.com)

Game Perlin noise

Debugger as REPL: IntelliJ IDEA's Run to Cursor and Quick Evaluate Expression

2025-03-28

Tired of traditional debuggers, especially gdb and lldb's limitations with native code, the author discovered a powerful workflow in IntelliJ IDEA. Combining "Run to Cursor" and "Quick Evaluate Expression" transforms the debugger into a REPL. "Run to Cursor" executes the program to the cursor's position, while "Quick Evaluate Expression" lets you evaluate expressions (even newly typed code!) within the current stack frame. This approach replaces the line-by-line stepping with a more experimental, two-dimensional interaction within the editor, leveraging code completion and offering a significantly more efficient debugging experience.

(matklad.github.io)

Development

Animating Rosettas in Ada: A Short Tutorial

2025-09-02

Animating Rosettas in Ada: A Short Tutorial

This tutorial demonstrates Ada's capabilities by creating a program that generates animated rosettas (hypotrochoids) as SVG files. It uses Ada 2022 features and leverages Alire, Ada's package manager, for project management. The tutorial highlights Ada's readability, strong typing, and safety, showcasing its use in geometric computation and SVG rendering. The author emphasizes Ada's suitability as a modern, general-purpose language, despite its reputation for safety-critical applications.

(blog.adacore.com)

Development

Let's Encrypt's Imminent Support for IP Address SAN Certificates

2025-06-25

Let's Encrypt's Imminent Support for IP Address SAN Certificates

Let's Encrypt is nearing the release of certificates supporting IP address Subject Alternative Names (SANs), initially limited to a short-lived (6-day) profile and an allowlist-only approach. The feature is still under development, with no public launch timeline yet. A sample certificate and a website utilizing it are provided, along with discussions about discovered bugs in Firefox and Discourse related to IP address SANs. The post also sparks debate on the validity of using IP addresses as DNS names within SANs and whether the DNS-01 challenge is applicable to IP address certificates.

(community.letsencrypt.org)

Development IP Address SAN

LLMs and the End of Remainder Humanism: A Structuralist Approach

2025-06-14

LLMs and the End of Remainder Humanism: A Structuralist Approach

Leif Weatherby's new book, *Language Machines: Cultural AI and the End of Remainder Humanism*, examines how Large Language Models (LLMs) have decoupled cognition from language and computation, echoing earlier structuralist theories. Weatherby critiques the prevalent 'remainder humanism' in AI research, arguing it hinders a true understanding of LLMs. He contends that both AI skeptics and enthusiasts fall into the trap of simplistic comparisons between human and machine capabilities. He proposes a structuralist framework, viewing language as a holistic system rather than a mere cognitive or statistical phenomenon, to better comprehend LLMs and their impact on the humanities.

(www.jhiblog.org)

AI Structuralism

Aligning Polynomial Features with Data Distribution: The Attention-Alignment Problem in ML

2025-08-26

Aligning Polynomial Features with Data Distribution: The Attention-Alignment Problem in ML

This post explores aligning polynomial features with data distribution for improved machine learning model performance. Orthogonal bases produce informative features when data is uniformly distributed, but real-world data isn't. Two approaches are presented: a mapping trick, transforming data to a uniform distribution before applying an orthogonal basis; and multiplying by a carefully chosen function to adjust the orthogonal basis's weight function to align with the data distribution. The first is more practical, achievable with Scikit-Learn's QuantileTransformer. The second is more complex, requiring deeper mathematical understanding and fine-tuning. Experiments on the California housing dataset show that near-orthogonal features from the first method outperform traditional min-max scaling in linear regression.

(alexshtf.github.io)

Development polynomial features feature engineering

Subliminal Learning: A Hidden Danger in LLMs

2025-07-23

New research reveals a disturbing phenomenon in large language models (LLMs) called "subliminal learning." Student models learn traits from teacher models, even when the training data appears unrelated to those traits (e.g., preference for owls, misalignment). This occurs even with rigorous data filtering and only when teacher and student share the same base model. The implications for AI safety are significant, as it suggests that filtering bad behavior might be insufficient to prevent models from learning bad tendencies, necessitating deeper safety evaluation methods.

(alignment.anthropic.com)

AI Subliminal Learning

The Marvelous Disappearing Capacitor: A Clever Trick to Improve Photodiode Amplifier Performance

2024-12-12

The Marvelous Disappearing Capacitor: A Clever Trick to Improve Photodiode Amplifier Performance

This article introduces a clever technique to improve the performance of photodiode amplifiers: bootstrapping. The parasitic capacitance of a photodiode limits its ability to amplify rapidly changing signals. In a traditional transimpedance amplifier (TIA), this capacitance reduces bandwidth. The article analyzes the working principle of a TIA, explaining how the photodiode's parasitic capacitance affects circuit performance. The author presents a bootstrapped circuit using an op-amp and JFET, which effectively eliminates the parasitic capacitance by keeping the voltage across the photodiode terminals virtually the same, significantly improving bandwidth. The article also discusses a variant AC-coupled bootstrapped circuit and provides relevant formulas.

(lcamtuf.substack.com)

Hardware photodiode bootstrapping transimpedance amplifier

Building SNES ROMs with C# using DotnetSnes

2025-05-04

Building SNES ROMs with C# using DotnetSnes

DotnetSnes is a revolutionary project enabling the creation of functional SNES ROMs using C#! It achieves this by providing a .NET library that abstracts SNES game development functions and globals. Compiled DLLs are transpiled to C and then compiled into a ROM using the PvSnesLib SDK. While SNES limitations (like no dynamic memory allocation) necessitate compromises in idiomatic C#, fully functional games are possible. The article details the development process, dependency installation, project setup, and building steps, showcasing two examples: HelloWorld (basic text output) and LikeMario (a more complex tile-map based game).

(github.com)

Development SNES development C# game development

Gut Bacteria Leakage Exacerbates Liver Damage in Chronic Alcohol Use: A New Mechanism

2025-09-06

Gut Bacteria Leakage Exacerbates Liver Damage in Chronic Alcohol Use: A New Mechanism

A new study uncovers a previously unknown mechanism by which chronic alcohol consumption worsens liver damage. Research reveals that chronic alcohol use impairs the production of the cellular signaling protein mAChR4 in the small intestine. This protein is crucial for the formation of goblet cell-associated antigen passages (GAPs), which help the immune system identify and respond to gut bacteria escaping into other parts of the body. Lower mAChR4 levels weaken GAP formation, allowing gut bacteria to leak into the liver, exacerbating alcohol-related liver damage. Fortunately, restoring mAChR4 function can repair the immune response and lessen liver damage. Published in Nature, this research offers a potential new therapeutic target for alcoholic liver disease and may also offer insights into treating alcohol use disorder.

(www.sciencealert.com)

Tech alcoholic liver disease mAChR4 protein

Weekend Hack: Gaussian Sampling Saves the Day

2025-06-24

Weekend Hack: Gaussian Sampling Saves the Day

A SaaS application's pricing slider caused 15-second delays from the ML model. Full pre-computation would take nearly 7 days. The author cleverly used Gaussian distribution to strategically sample price points, prioritizing the middle range with higher precision, and reducing precision towards the ends. Pre-computation finished over the weekend, successfully avoiding a demo failure.

(medium.com)

Development Gaussian sampling pre-computation

Samsung's Odyssey 3D: Glasses-Free 3D Gaming Monitor Unveiled

2025-01-03

Samsung's Odyssey 3D: Glasses-Free 3D Gaming Monitor Unveiled

Samsung is launching the Odyssey 3D monitor, a glasses-free 27-inch 4K display utilizing a lenticular lens and AI to convert 2D content into 3D. Eye-tracking technology enhances the experience by optimizing the 3D effect. This represents another attempt by Samsung to popularize 3D displays, building on previous prototypes. While a larger 37-inch version was teased, only the 27-inch model has been released so far, potentially due to cost and market demand considerations. The monitor will be further showcased at CES 2025.

(arstechnica.com)

Hardware 3D display Samsung

Raven: OCaml's New Machine Learning Ecosystem

2025-04-30

Raven: OCaml's New Machine Learning Ecosystem

Raven is a comprehensive ecosystem bringing machine learning and data science to OCaml. It offers libraries mirroring popular Python tools like NumPy (with Ndarray), Jupyter (with Quill), and JAX (with Rune), aiming for Python-like ease of use while leveraging OCaml's type safety and performance. Currently in pre-alpha, Raven boasts a growing suite of tools for numerical computation, visualization (Hugin), and more, promising a compelling alternative for data scientists seeking a safer, faster language.

(github.com)

Development

TVA Submits Application for First US BWRX-300 SMR

2025-05-25

TVA Submits Application for First US BWRX-300 SMR

The Tennessee Valley Authority (TVA) has submitted an application to build a GE Vernova Hitachi Nuclear Energy BWRX-300 small modular reactor (SMR) at Clinch River, marking a significant milestone in US advanced nuclear technology development. This is the first US construction permit application for the BWRX-300, a smaller, more efficient and safer reactor design. TVA has invested in the design and is pursuing government funding, aiming to begin site preparation as early as 2026. The project highlights the growing interest in SMRs to meet increasing energy demands.

(www.world-nuclear-news.org)

Tech small modular reactor SMR

Planet Nine Candidate Spotted? New Infrared Data Ignites Deep Space Exploration Debate

2025-05-06

A new study analyzing data from the Infrared Astronomical Satellite (IRAS) and AKARI has identified a potential candidate for the hypothesized Planet Nine. While its orbit and characteristics require further confirmation, the finding has sparked renewed interest in deep space exploration. The research highlights challenges and opportunities in mission design and propulsion, especially given the vast distance. The study also suggests a surprising abundance of super-Earths in Jupiter-like orbits around other stars, broadening the potential targets for future missions.

(www.centauri-dreams.org)

Tech Super-Earths

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