Abdominal fat predicts heart disease risk better than BMI

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A study published in JACC found that waist circumference and waist-to-hip ratio are better indicators of cardiovascular disease risk than body mass index (BMI) alone. Adding these measures to BMI can reclassify individuals with normal weight as high-risk for heart disease.

Semaglutide linked to lower predicted dementia risk

Bede Liu, a digital signal processing pioneer, has died

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H. Vincent Liu was a renowned electrical engineer who pioneered digital signal processing, enabling technologies like streaming video and cellphone calls. He received numerous awards for his contributions to the field, including the 2018 IEEE Jack S. Kilby Signal Processing Medal.

Cultivating a state of mind where new ideas are born (2023)

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The author discusses the importance of solitude and isolation for creative individuals, citing examples from mathematician Alexander Grothendieck and filmmaker Ingmar Bergman. They argue that this state allows for a heightened sensitivity to new ideas and a freedom from social pressure.

Engineers will do anything to avoid learning from history

First we reinvented statistics. Then finance. Now we're reinventing program management and calling it agentic orchestration.

AI has access to a vastly larger working memory than the human brain

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AI systems excel in mathematics due to their ability to process and store vast amounts of information, whereas humans are limited by working memory capacity. This allows AI models to generate longer chains of deductions and explore multiple possibilities more efficiently than humans can.

At-home test for infected ticks could improve Lyme Disease diagnosis

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The US experiences a significant number of tick-borne illnesses, with over 31 million Americans affected annually. Lyme disease is the most common diagnosis, with an estimated 476,000 patients treated each year.

AI in drug discovery – what it is, where we stand and the path forward

RISC-V: They Should Have Known Better

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RISC-V's design is flawed due to its excessive optionality, leading to a lack of coherence and consistency across the architecture. This makes it difficult for developers to write code that works on all RISC-V cores, resulting in fragmentation and wasted time debugging issues.

Auto-research with codex: How I achieved a 232x Faster Kernel

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The author participated in a GPU Mode contest to implement batched square compact-Householder QR factorization, achieving a 232x speedup over the baseline solution. They used blocked Householder and WY updates to optimize performance on NVIDIA B200 GPUs.

Geek Fighter – 2d fighter game

Geek Fighter — an original pocket-sized retro browser brawler.

The Wow signal was a strong narrowband radio signal detected on August 15, 1977

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The Wow! signal was a strong, narrowband radio signal detected in 1977 by Ohio State University's Big Ear radio telescope, sparking interest in the search for extraterrestrial intelligence. Despite numerous follow-up searches and hypotheses, the signal has never recurred or been confirmed as of 2024.

A spectre is haunting Unicode

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The JIS X 0208 encoding was established in 1978 with added characters that later became known as ghost characters, which had no obvious sources. An investigation in 1997 discovered the origins of most ghost characters, including some being mistakes during cataloging and others having unclear or misread sources.

Voltair (YC W26) Is Hiring a Test Flight Engineer

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Voltair is building a distributed drone network for earth observation, focusing on power utilities. They're seeking a Flight Test Engineer to validate test fixtures and deploy drones for customer contracts within 90 days of arrival.

Modeling and Verification of Keeta's Consensus [pdf]

Cross-border financial settlement remains slow and costly, with structural inefficiencies rooted in the correspondent banking sys- tem. Keeta is a recently released blockchain network designed for high-volume global payments, employing a novel two-phase client-directed consensus algorithm. Despite its promise, the al- gorithm has only been described informally in a whitepaper and has not been ...

Working with AI feels more like leadership than coding

The author reflects on the shift from treating AI like a compiler to collaborating with it, recognizing that good leaders share context and explain desired outcomes. Effective use of AI requires expressing intent beyond just giving instructions.

Show HN: Live Claude Usage HUD for a $38 Thermalright Trofeo Vision LCD

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A desk HUD that shows live Claude usage on a Thermalright Trofeo Vision 6.86" LCD (1280×480, USB-C, ~$38), driven from macOS. Inspired by the r/ClaudeAI "$38 Claude LCD Table Display" post. What it shows: Pro/Max session + weekly limit bars with reset countdowns (from Anthropic's usage endpoint), today's tokens and hypothetical API cost (via ccusage), the live session ...

Tracking down a Zsh history data loss bug

For many years, I sometimes discovered that commands I was sure I had run were no longer present in my Z shell history file (~/.zsh_history). In this article, I will show you how I tracked down the bug. Spoiler: ultimately, patching Zsh to make it crash loudly and analyzing the crash’s core dump was the winning strategy! Zsh 5.9.2 (released July 12th, 2026) contains a fix for this issue — ...

Tess's Android Wayland Compositor

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tawc is a rootless Android app that runs Linux CLI and graphical programs, using its own Wayland compositor and tawcroot for emulation. The project has limitations, including no real sandboxing, desktop GL support, or x86 builds.

Pizza Box Project Stack

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The author created a paper-based project tracker inspired by Ratfactor's idea, using three stacks: blanks, tasks, and finished. They found it helpful for offloading mental tasks and retaining autonomy while keeping use-friction low.

BriskDB

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BriskDB is an alpha SQLite fork that adds parallel writes, PostgreSQL compatibility, and embedded Rust/Python APIs to ordinary SQLite files. It provides a responsive read-only data browser and supports various protocols like HTTP, PostgreSQL, MySQL, and MongoDB.

2D Gaussian Splatting for Bézier Spline Line Art Vectorization

A new state-of-the-art method for line art vectorization is introduced using recent advances in depth prediction and semantic feature extraction models. The proposed approach achieves high-quality results that align with artistic intent, while being fast and compatible with user input.

Show HN: Eigendrum - Draw any shape and hear what it sounds like as a drum

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Eigendrum is a software that solves the eigenvalue problem for drum shapes, allowing users to create and play custom drums. It uses numerical methods to find the frequencies of standing waves within a given shape.

The mathematical beauty of hyperbezier curves

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A new curve family, the hyperbezier, is proposed as a potential successor to cubic Béziers in 2D vector graphic design. The hyperbezier has smoother curvature variation and can represent higher-tension regions with large curvature peaks.

A controversial Alzheimer's surgery is said to reverse symptoms

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A Chinese doctor performed a surgery called deep cervical lymphatic-venous anastomosis (dcLVA) to treat Alzheimer's disease, with promising results. The procedure involves connecting tiny lymphatic vessels in the neck to nearby veins, potentially improving brain drainage and clearing waste proteins.

Printytron – Describe a part, get a printable STL

An image can overflow

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The <img> element acts as both a container and content, allowing overflow through properties like object-fit and border-radius. CSS techniques can exploit this to create advanced effects without extra elements.

Triple Product Rule of Partial Derivatives

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The triple product rule, known variously as the cyclic chain rule, cyclic relation, cyclical rule, Euler's chain rule, or the reciprocity theorem,[1] is a formula which relates partial derivatives of three interdependent variables. The rule finds application in thermodynamics, where frequently three variables can be related by a function of the form f(x, y, z) = 0, so each variable is ...

The Dutch community where people live on strips of land in a lake

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Residents in Loosdrecht, Netherlands live on manmade islands within a lake created by peat mining. These homes were built on leftover strips of land after peat was unloaded and dried.

Humazon

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The author reflects on the history of content farms in publishing, from Stratemeyer to AI-driven platforms, questioning authenticity in literature. They advocate for a human-centric bookstore experience, emphasizing readers and writers as the true pillars of the industry.