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HP 9845C: A Colorful Pioneer of 80s Computer Graphics

2024-12-13

In 1981, the HP 9845C, the top-of-the-line model in the 9845 series, emerged as the first HP computer to support color, stunning the world with its powerful graphics capabilities. Featuring hardware-accelerated vector drawing and polygon fill, and supporting fast matrix operations for 3D model rendering, this machine initially designed for scientific and engineering use quickly became a multipurpose system, even contributing to the graphic scenes in the 1983 film "WarGames." Its demo program was remarkable, boasting over 4000 lines of code and showcasing cutting-edge concepts like 3D shading, ordered dithering, wireframe rendering, interactive light pen control, and color infographics at a high resolution of up to 4913 colors.

(socks-studio.com)

Tech computer graphics vintage computer

uv: Streamlining Python Script Dependency Management

2025-07-22

uv is a powerful tool that simplifies dependency management for Python scripts. It eliminates the need for manual environment management, automatically handling virtual environments and preferring a declarative approach to dependencies. Whether your script relies on standard library modules or external packages like `rich`, uv makes execution straightforward with the `uv run` command, specifying dependencies via the `--with` option. uv also supports inline script metadata, allowing dependency and Python version declarations directly within the script. Further enhancing reproducibility, uv offers dependency locking and handles various scenarios, including reading scripts from stdin, supporting .pyw extensions, and specifying alternative package indices.

(docs.astral.sh)

Development virtual environments

sshsync: Streamline SSH Commands Across Multiple Servers

2025-05-19

sshsync: Streamline SSH Commands Across Multiple Servers

sshsync is a fast, minimal CLI tool for running shell commands across multiple remote servers via SSH. Target all servers or specific groups, ideal for sysadmins, developers, and automation. It uses asyncssh, supports group-based configuration, SSH timeout settings, file pushing/pulling, operation history and logging, and a dry-run mode. Install via `git clone https://github.com/Blackmamoth/sshsync.git; cd sshsync; pipx install .`. It uses SSH aliases from ~/.ssh/config and stores group information in ~/.config/sshsync/config.yaml.

(github.com)

Development Server Management

Deep Dive: Humans to Test Underwater Habitat in 2025

2025-01-06

Deep Dive: Humans to Test Underwater Habitat in 2025

British startup Deep is pioneering underwater living with its Sentinel project, a modular habitat slated for completion in 2027. Utilizing advanced 3D printing and welding, Sentinel will enable scientists to live and work at depths up to 200 meters for extended periods. A smaller, transportable habitat called Vanguard, launching in 2025, will serve as a testbed. Vanguard can house three divers for up to a week, demonstrating the potential to dramatically increase the efficiency of ocean research and enhance our understanding of marine ecosystems in the face of climate change.

(spectrum.ieee.org)

Tech Underwater Habitat Ocean Exploration 3D Printing

QEMU Gains Vulkan Acceleration with VirtIO GPU Driver Update

2024-12-12

QEMU Gains Vulkan Acceleration with VirtIO GPU Driver Update

QEMU version 9.2.0 and later now supports Vulkan acceleration for VirtIO-GPU thanks to the Venus patches. This represents a significant advancement in Vulkan graphics rendering for QEMU virtual machines. The article details the setup process, including installing necessary packages (Linux kernel 6.13+, QEMU 9.2.0+, Vulkan drivers, etc.), building QEMU from source, and creating a VM image. While virt-manager currently lacks Vulkan configuration support, command-line parameters offer a workaround. Troubleshooting tips are provided, along with notes on current limitations in virt-manager and libvirt.

(gist.github.com)

Development

Is Saving Online Content Worth It? A Blogger's Reflection

2024-12-21

Is Saving Online Content Worth It? A Blogger's Reflection

While organizing his online bookmarks, blogger Ruben Schade discovered that most of his years of accumulated links were broken or altered, leading him to reflect on the meaning of preserving online content. He realized the ephemeral nature of the internet and the vulnerability of even the Internet Archive. Although he has saved a large amount of potentially worthless personal blogs, podcasts, and videos, he believes these constitute valuable time capsules of personal memories and history, worthy of preservation. Ultimately, he argues that the value of saving online content lies in its historical significance and personal memories, while the challenge lies in how to achieve efficient and economical preservation.

(rubenerd.com)

Misc online archiving digital legacy

Teotihuacan Altar Unearthed at Tikal Reveals a Violent Chapter in Maya History

2025-04-12

Teotihuacan Altar Unearthed at Tikal Reveals a Violent Chapter in Maya History

A recently unearthed altar at Tikal, the ancient Mayan city in Guatemala, is rewriting our understanding of a pivotal period in Mayan history. Dating back to the late 300s AD, the altar's artistic style strongly resembles that of Teotihuacan, a powerful civilization located hundreds of miles away in modern-day Mexico. Researchers believe skilled artisans from Teotihuacan created the altar, suggesting a significant level of Teotihuacan influence and control over Tikal. This discovery, along with previous findings like a replicated Teotihuacan citadel and unique burial practices, points to a forceful takeover and subsequent regime change, highlighting a violent and transformative chapter in Mayan civilization. The altar's discovery offers a fascinating glimpse into the complex and often contentious relationship between the two ancient empires.

(phys.org)

Tech Maya Civilization Teotihuacan

Giant Emojis in Your Terminal: A 1978 Tech Hack

2025-06-24

This article explores a clever way to display enlarged emojis in your terminal using the VT100's DECDHL escape sequence. By printing the top and bottom halves of an emoji on consecutive lines, you can achieve a vertical scaling effect. The article demonstrates how to combine different emojis to create novel results, such as merging an expressionless face and a face without a mouth into a new emoji. It also mentions Kitty terminal's more modern approach to resizing text. Overall, it's a fun and insightful look at manipulating emojis in the terminal, showcasing both vintage and modern terminal technology.

(dgl.cx)

Development

Easel: Multiplayer Game Development Made Easy

2025-05-15

Easel: Multiplayer Game Development Made Easy

Easel is a 2D game programming language that simplifies multiplayer game development to the level of single-player games. Whether beginner or expert, you'll enjoy creating games with Easel! Its hierarchical programming language, behaviors model, and reactive style allow for expressing complex game logic with surprising simplicity. Easel handles the complexities of networking and synchronization automatically, even incorporating advanced rollback netcode for a smooth experience. A complete 2D game development system, from graphics and audio to physics and UI, Easel offers an online editor and server hosting for easy deployment and sharing.

(easel.games)

Game multiplayer

Carl Sagan's Prophecy: The Decline of Science and America's Future

2025-02-05

Carl Sagan's Prophecy: The Decline of Science and America's Future

This article explores Carl Sagan's prediction of America's future trajectory, contrasting it with the cyclical theory of history proposed by the 18th-century philosopher Giambattista Vico. Sagan feared that the benefits of technological advancement in America would be controlled by a select few, leading to a decline in public scientific literacy, a rise in superstition, and ultimately, societal decline. This aligns with Vico's theory of cyclical rise and fall, but Sagan believed that reversing this trend through science education was possible. The article serves as a warning about the importance of science literacy education and avoiding a repeat of history.

(www.openculture.com)

Tech science education technological future social prediction

Xee: A Modern XML Execution Engine in Rust

2025-03-28

The author spent two years building Xee, an XML Execution Engine implemented in Rust, supporting modern XPath and XSLT. More than just a library, Xee is a full programming language implementation, featuring a command-line tool and a Rust library, aiming to revitalize the aging XML technology. The article details Xee's architecture, implementation, and the history and current state of XML, with a call to action for developers to contribute.

(blog.startifact.com)

Development

A New Paradigm for Psychology: The Mind as a Stack of Control Systems

2025-05-15

A New Paradigm for Psychology: The Mind as a Stack of Control Systems

This article tackles the long-standing issue of psychology's lack of a unifying paradigm, proposing a new framework based on control systems – cybernetic psychology. It argues the mind is a collection of control systems, each regulating a specific human need (e.g., nutrition, temperature), with error signals representing emotions. This approach offers a novel perspective on personality and mental illness, shifting psychology from symptom-based descriptions to exploring underlying mechanisms, potentially revolutionizing treatment approaches.

(www.experimental-history.com)

AI cybernetics

The Surprisingly Complex History of the Word "Mainframe"

2025-02-01

The Surprisingly Complex History of the Word

This article delves into the unexpected evolution of the term "mainframe." Initially referring to the physical frames of early computers like the IBM 701, its meaning shifted over time. It became synonymous with the CPU, and eventually settled on its modern definition: a large, powerful computer for transaction processing or business applications. The article explores this semantic shift, analyzing the impact of minicomputers and microcomputers, IBM's role in popularizing the term, and its eventual widespread adoption.

(www.righto.com)

Tech mainframe technical terminology

DeepSeek App's Security Flaws Spark US Government Concerns, Potential Ban Looms

2025-02-08

DeepSeek App's Security Flaws Spark US Government Concerns, Potential Ban Looms

A mobile app called DeepSeek is facing potential government ban in the US due to security vulnerabilities. Security experts discovered the app bypasses Apple's App Transport Security (ATS), using insecure HTTP protocols for communication, potentially exposing sensitive data to the Chinese government. Experts warn that even with encrypted communication, sending sensitive data to servers in China remains risky. US lawmakers are pushing for a 60-day ban on DeepSeek from government devices due to national security concerns that the Chinese Communist Party may have created a backdoor for accessing Americans' private data.

(arstechnica.com)

Tech Chinese Company

Go 1.24 Cryptography Overhaul: Achieving FIPS 140-3 Compliance

2025-02-06

Go 1.24 significantly refactored its cryptography packages to achieve FIPS 140-3 compliance. This is a major step forward, featuring a pure Go (and Go assembly) implementation of a FIPS 140-3 validated cryptographic module, eliminating reliance on cgo or syscalls. Microsoft Go 1.24 also updated, adding macOS preview support and enhanced Azure Linux support, but maintains its use of system libraries for cryptography, diverging from the official Go approach. New environment variables like GODEBUG=fips140=on and GOFIPS140=latest control FIPS mode; the runtime automatically enables it on FIPS-compliant systems (Azure Linux, Windows).

(devblogs.microsoft.com)

Development

Return-to-Office Fails to Revive the Struggling Office Sector

2025-02-11

Despite numerous companies mandating a return to the office, data reveals that actual office attendance has barely budged since early 2023. Kastle's weekly back-to-work barometer shows an average occupancy rate of only 54% of pre-pandemic levels in the top 10 office markets. Meanwhile, the percentage of work-from-home (WFH) days remains high, exceeding 29% of all full-paid days. This indicates that many companies have adapted to hybrid work models, with WFH proving effective in boosting productivity and reducing office costs. Therefore, hopes that return-to-office initiatives will rescue the commercial real estate office sector appear premature.

(wolfstreet.com)

Tech work from home commercial real estate

A Toast to Douglas Adams: The Humorist of the Cosmos

2025-03-15

A Toast to Douglas Adams: The Humorist of the Cosmos

Today marks the anniversary of Douglas Adams' birth. This article humorously remembers the science fiction master known for works like *The Hitchhiker's Guide to the Galaxy*, filled with absurd cosmic imaginings and profound reflections on the human condition. The author argues that Adams' work not only brought laughter but also changed how we think about technology, extinction, and the very nature of reality itself; his humorous philosophy continues to guide us in navigating an increasingly complex world.

(multiverseemployeehandbook.com)

Misc Douglas Adams Hitchhiker's Guide to the Galaxy

Blogger Resurfaces 2004 MIT Spam Conference Talk Intro Video

2024-12-13

Blogger John Graham-Cumming recently shared on his blog the intro video from his 2004 MIT Spam Conference talk. The video cleverly uses the "All your base are belong to us" meme, adapting it to discuss spam and machine learning, and paying homage to Paul Graham. It showcases early machine learning applications in anti-spam and the blogger's creative and humorous approach to tech communication.

(blog.jgc.org)

AI machine learning anti-spam

Shunpo: A Minimalist Bash Tool for Faster Directory Navigation

2025-01-27

Shunpo: A Minimalist Bash Tool for Faster Directory Navigation

Shunpo is a minimalist bash tool designed to speed up directory navigation in your terminal. It provides a simple bookmark system, allowing you to jump to frequently used directories with minimal keystrokes. Perfect for users who constantly use commands like `cd`, `pushd`, or `popd`, Shunpo lets you easily bookmark, remove, and list directories. Installation is simple: just run `install.sh`.

(github.com)

Development Bash tool directory navigation

Modeling API Rate Limits as Diophantine Inequalities

2025-06-30

This article explores a mathematical approach, specifically using Diophantine inequalities, to solve API rate limiting problems. The author uses a scenario with a 10-requests-per-hour limit and three retry attempts per task as an example, demonstrating how to transform the task scheduling problem into an integer feasibility problem. By analyzing the task retry pattern and time windows, the author establishes an inequality model and uses Go to write a program that determines whether a new task can be safely scheduled without exceeding the rate limit. The article also mentions optimizing the algorithm to reduce time complexity from O(n^2) to O(n*log(n)).

(vivekn.dev)

Development API Rate Limiting Diophantine Inequalities

A Surprisingly Rich History of Calculators

2025-01-31

A Surprisingly Rich History of Calculators

This article traces the surprisingly rich history of calculators, from ancient abacuses and counting rods to modern electronic devices. Using a personal collection of antique calculators, the author details the evolution from mechanical marvels like Pascal's adder and Leibniz's multiplier, through slide rules, hand-cranked calculators, and finally, the electronic calculator. The story highlights key technological advancements and limitations at each stage, culminating in the miniaturization and widespread adoption of handheld calculators, even integrated into wristwatches. However, the rise of smartphones ultimately relegated the standalone calculator to a niche product.

(lcamtuf.substack.com)

Tech calculator history mechanical calculators electronic calculators

Open Source Maintainer Revolt: The Libxml2 Case Study

2025-06-26

Libxml2, a widely used XML parser, highlights the successes and failures of the open-source model. After years of being relied upon by major corporations like Apple, Google, and Microsoft without adequate support, its maintainer, Nick Wellnhofer, is rejecting security embargoes and treating security vulnerabilities like regular bugs. This decision, driven by burnout and insufficient funding, sparked a debate about corporate responsibility in open source and the need for sustainable maintenance models. Wellnhofer's actions suggest a growing frustration within the open-source community and could signal a shift in how maintainers engage with large companies.

(lwn.net)

Development corporate responsibility

Revontuli Theme Update Log: Brighter Blues!

2025-07-30

Revontuli Theme Update Log: Brighter Blues!

The Revontuli theme has undergone numerous updates, most notably a significant brightening of its blue hues. From June 2023 to July 2025, updates spanned various applications, including code editors (VSCode, Vim, Sublime Text, etc.), terminals (Konsole), and even wallpapers. Beyond the improved blues, updates included adding new themes (like the Eve Online theme), bug fixes, and the addition of test files. This demonstrates a commitment to detail and continuous improvement.

(codeberg.org)

Development theme updates color adjustments

Download TikTok Videos and Images Effortlessly with Tikt.com

2025-06-15

Say goodbye to complicated TikTok download processes! Tikt.com is a simple tool that lets you download videos, audio, images, and entire profile media quickly and easily. Just remove "ok" from tiktok.com, or add tikt.com/ before any TikTok link, and press Enter. It supports a wide range of image and video platforms and offers features like bulk downloads (requires a free account). A powerful API is also available for developers.

(tikt.com)

Misc TikTok download image download

Fahmatrix: A Lightweight Pandas Alternative for Java

2025-05-17

Fahmatrix: A Lightweight Pandas Alternative for Java

Fahmatrix is a lightweight, modern Java library for working with tabular data, inspired by Python's Pandas and designed to simplify data understanding on the JVM. It offers an intuitive API for CSV reading and previewing, row filtering and column selection, and upcoming features like aggregations, grouping, and sorting. Fahmatrix currently has no external dependencies and can be downloaded as a JAR file from GitHub or used via Maven/Gradle (to be added in future versions). Key features include loading CSV files into DataFrames, pretty-printing data, `head()`/`tail()` functions, various aggregation functions, row filtering and column selection, groupBy and pivot tables, data export, and type inference and conversion. Fahmatrix empowers Java developers to work with tabular data efficiently without leaving the JVM.

(github.com)

Development

Solving NAT Timeouts for IoT Devices with Connection IDs

2025-02-14

Solving NAT Timeouts for IoT Devices with Connection IDs

Network Address Translation (NAT) timeouts frequently interrupt IoT device-cloud communication, necessitating frequent reconnections and wasting resources. This post demonstrates how Golioth leverages DTLS 1.2 Connection IDs to mitigate this. By configuring the Golioth firmware SDK to disable keep-alive messages and set appropriate receive timeouts, coupled with Connection IDs, devices maintain connectivity even after NAT timeouts without costly handshakes, reducing power consumption and improving efficiency. This is particularly crucial for battery-powered, low-power devices.

(blog.golioth.io)

Tech

IngressNightmare: Critical Vulnerabilities Impacting Thousands of Kubernetes Clusters

2025-03-25

IngressNightmare: Critical Vulnerabilities Impacting Thousands of Kubernetes Clusters

Wiz Research discovered a series of unauthenticated Remote Code Execution vulnerabilities (dubbed #IngressNightmare) in Ingress NGINX Controller for Kubernetes. Exploitation grants unauthorized access to all secrets across all namespaces, potentially leading to cluster takeover. Approximately 43% of cloud environments are vulnerable, with over 6,500 affected clusters, including Fortune 500 companies, publicly exposing vulnerable components. Immediate patching is crucial. Mitigations include updating to the latest Ingress NGINX Controller version or disabling the admission controller component.

(www.wiz.io)

Development

China's EV Giants Pivot to Humanoid Robots

2025-02-20

China's EV Giants Pivot to Humanoid Robots

A new trend is emerging in China's tech scene: leading electric vehicle companies are heavily investing in humanoid robot development. This is closely tied to the booming EV market in China, which significantly surpasses the US market share, driven by price competition, government subsidies, and well-established infrastructure. The recent appearance of dancing humanoid robots on China's New Year Gala, while sparking some technical debate, showcases China's rapid advancements in robotics. This trend could have profound implications for the global tech landscape and potentially impact policies like those of the Trump administration.

(www.technologyreview.com)

Tech

Nvidia Unveils Granary: A Massive Multilingual Dataset for AI Translation

2025-08-24

Nvidia Unveils Granary: A Massive Multilingual Dataset for AI Translation

Nvidia announced Granary, a massive open-source multilingual audio dataset exceeding one million hours of audio, designed to boost AI translation for European languages. This dataset, developed in collaboration with Carnegie Mellon University and Fondazione Bruno Kessler, includes nearly all EU official languages plus Russian and Ukrainian, focusing on under-resourced languages. Accompanying Granary are two new models, Canary and Parakeet, optimized for accuracy and speed respectively. Granary significantly reduces the data needed for training, enabling more inclusive speech technologies.

(siliconangle.com)

AI AI Translation Multilingual Dataset

Go Data Structures: A Deep Dive into Memory Layout

2025-02-05

This post provides a detailed explanation of the memory layout of basic data types, structs, arrays, and slices in Go. Using illustrative diagrams, it clearly shows how various data types are represented in memory, including ints, floats, arrays, structs, and pointers. The article also specifically explains the underlying implementation of strings and slices in Go, as well as the differences between the `new` and `make` functions. This helps readers better understand the mechanisms behind Go's efficiency and gain a deeper understanding of Go's memory management.

(research.swtch.com)

Development

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