https://sudonull.com/quantum-effect-for-powering-chips-from-air-without-batteries
Scientists have discovered the nonlinear Hall effect in bismuth telluride, allowing microchips to be powered by radio signals. Learn about the technology that will rid sensors of batteries in the 6G era.
https://sudonull.com/wspr-protocol-python-encoding-of-callsigns
Study the WSPR design for HF radio: 4-FSK modulation, data packing into 50 bits, code examples for callsigns and locators. Implement signal propagation analysis.
https://sudonull.com/esp32-s3-internet-radio-code-and-schematic
Assemble internet radio on ESP32-S3 with UDA1334 and OLED. Full code, I2S connection, web interface. For middle/senior IoT developers.
https://sudonull.com/spacex-starship-laser-data-transmission-system-2200-km-test
SpaceX tested laser communication on Starship for the first time without radio interference. Learn how this changes space communications and prepares a revolution by 2027. Read the analysis.
https://sudonull.com/tkinter-todo-search-filters-csv-export
Implement status filtering, real-time search and CSV export in Tkinter ToDo. Full code with Combobox, radio buttons and csv.writer. For middle/senior developers.
https://ymaho.com/what-is-the-gold-silver-ratio-and-how-to-use-it
Learn what is the gold silver ratio and how to use it to gauge market sentiment, identify relative value, and make smarter precious metals investment decisions.
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Explore the history of Linux and how it changed computing from a student project to the backbone of the internet, Android, and enterprise infrastructure. Learn why open-source won.
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What is a docker container and how does it differ from a vm? Learn architecture, security, performance, and when to use each. Make the right choice for your projects.
Learn how to become a self-taught programmer and get a job in 2026 with this practical roadmap. Master fundamentals, build a portfolio, and land your first developer role.
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Explore the complete history of the internet how it was created and evolved. From ARPANET to AI, discover key milestones and technological breakthroughs. Learn more today.