Mag Wealth In the human world, wealth inequality arguably has more of an impact on lives and relationships than physical differences like distance and energy. We need to have meaningful discussions about structural class differences, and segmenting the population based on wealth is an obvious starting point.

This website shows over 5,350 Chinese propaganda posters, with information about their history, background and design. You can browse a Gallery of 200 highlights, look at over 300 theme presentations, or search and browse posters, artists and tags.

Build your own ML framework. TinyTorch is organized into four progressive tiers that take you from mathematical foundations to production-ready systems. Each tier builds on the previous one, teaching you not just how to code ML components, but how they work together as a complete system.

Machine Learning Systems provides a systematic framework for understanding and engineering machine learning (ML) systems. This textbook bridges the gap between theoretical foundations and practical engineering, emphasizing the systems perspective required to build effective AI solutions. Unlike resources that focus primarily on algorithms and model architectures, this book highlights the broader context in which ML systems operate, including data engineering, model optimization, hardware-aware training, and inference acceleration. Readers will develop the ability to reason about ML system architectures and apply enduring engineering principles for building flexible, efficient, and robust machine learning systems.

Papiers helps researchers and engineers explore arXiv papers with AI-generated summaries, wiki-style insights, and interactive viewing tools.

by year, since 3000 BC. Universal History datasets. Relevant Universal History vector information.

Complete works of Charles Darwin

Archive of historical photos, generated by users. Retro photos of mankind’s habitat.

Why I built an e-paper room air monitor for my flat and how the first MVP works: monitor unit with e-paper display, sensor and LED panel -> storage and forwarding to a FastAPI backend with SQLite -> visualisation in an interactive dashboard. TL;DR – In the cold season we tend to keep the windows closed. The air gets “stale”: humidity often rises above 60 %, which can harm our wellbeing and promote mould. At the same time the CO₂ level in the air increases, which impacts our ability to concentrate. So I built a room air monitor that stays unobtrusive as long as everything is in the green zone, but becomes deliberately noticeable once thresholds are exceeded. For my personal love of statistics I also visualise the measurements in a clear dashboard.

AirPods liberated from Apple’s ecosystem. Contribute to kavishdevar/librepods development by creating an account on GitHub. LibrePods unlocks Apple’s exclusive AirPods features on non-Apple devices. Get access to noise control modes, adaptive transparency, ear detection, hearing aid, customized transparency mode, battery status, and more - all the premium features you paid for but Apple locked to their ecosystem.

For Thirty Years, the AstroCam 110 Was King of Model Rocket Photography.

As mentioned in previous articles, it was Brudder Dick who got me started building my models. He also introduced me to another hobby, photography. He took the photos in our debut rocketry article with a Canonet QL viewfinder camera using Kodachrome-64 slide film.

LongtermTrends is a financial research website dedicated to helping investors understand financial markets and macroeconomic trends through a vast collection of easy-to-use, long-term historical charts and data visualizations. The platform’s mission is to make complex financial relationships accessible, allowing users to spot major trends and cycles across different asset classes and economic indicators.

Main Features/Content Areas The site organizes its extensive chart library into several major categories:

Stocks: Features long-term valuation metrics like the S&P 500 P/E Ratio (Shiller P/E) and the Buffett Indicator (Market Cap to GDP), along with comparisons of different investing styles (Growth vs. Value) and regions (US Stocks vs. The World).

Bonds: Charts the performance of bonds, including the US Yield Curve and Credit Spreads, which are used to forecast economic conditions.

Gold & Commodities: Compares the performance and ratios between different physical assets, such as Dow to Gold Ratio, Bitcoin

The Caplocus website provides a real-time, data-driven visual overview of the U.S. technology sector. It uses a treemap visualization where the size of each company’s block (like Apple, Microsoft, Amazon, etc.) is directly proportional to its live market capitalization. Users can select a performance range (from 1-day to 5-year) to color-code the blocks, immediately showing which companies are gaining (green) or losing (red) within that period. This makes it an efficient tool for instantly assessing the overall health and component movements of the tech market.

The website displays the Finviz Stock Market Map, a highly visual tool that provides an immediate overview of the performance of the S&P 500 index stocks. The map categorizes the stocks by sectors and industries, with the size of each block representing the company’s market capitalization.

Main features:

-Performance Visualization: The map uses a color-coded system (green for gains, red for losses) to show the stock’s performance over various timeframes, such as “1-Day Performance” (default), “1-Week,” “Year to Date,” and more.

-Data Metrics: Users can change the view to display other metrics by color, such as P/E ratio, Dividend Yield, Sales Growth, and Analyst Recommendations.

-Interactivity: Hovering over a stock ticker reveals its main competitors and a 3-month history graph. Double-clicking a ticker opens detailed information in a new window.

-Filtering: The map can be filtered to display different major indices, including the S&P 500, Dow Jones 30, Nasdaq 100, Russell 2000, and World ETFs.

Perkeep (née Camlistore) is a set of open source formats, protocols, and software for modeling, storing, searching, sharing and synchronizing data in the post-PC era. Data may be files or objects, tweets or 5TB videos, and you can access it via a phone, browser or FUSE filesystem.

Perkeep is under active development. If you’re a programmer or fairly technical, you can probably get it up and running and get some utility out of it. Many bits and pieces are actively being developed, so be prepared for bugs and unfinished features.

Join the community, consider contributing, or file a bug.

Things Perkeep believes:

Your data is entirely under your control Open Source Paranoid about privacy, everything private by default No SPOF: don’t rely on any single party (including yourself) Your data should be alive in 80 years, especially if you are

An open-source, code-first Go toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control. - google/adk-go

The personal website of James Belchamber. I didn’t reverse-engineer the protocol for my blood pressure monitor in 24 hours

Last week the Department of War finally killed the last vestiges of Robert McNamara’s 1962 Planning, Programming, and Budgeting System (PPBS).  The DoW has pivoted from optimizing cost and performance to delivering advanced weapons at speed. Taking decades to deliver weapons is no longer an option. The DoW has joined the 21st century and adopted…

Microplastics: No Longer a “Maybe”

I designed a fully revertible modification for a Vornado 633DC fan so I could control it remotely over WiFi. The final result is concealed entirely within the fan’s housing, leaving no visible modification.

If you’re interested in building one yourself, the schematic, BoM, and PCB design are all available here. In terms of firmware, I used ESPHome with an external component, for which the source code is available here. The rest of this post covers the research and development that went into the project.