Search Articles — Sudonull

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/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/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/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/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.

Dec 4, 2023 ·

https://www.astronomy.com/science/how-do-radio-telescopes-work/

Dec 4, 2023 · Radio telescopes come in all shapes and sizes, depending mainly on the radio wavelengths they are designed to receive. The most familiar sort is a curved dish that reflects radio waves to a focal ...

Mar 3, 2025 ·

https://radiojove.gsfc.nasa.gov/radio_telescope/

Mar 3, 2025 · Radio JOVE is a NASA education and outreach project involving high school and college students in solar and planetary radio astronomy .

Green Bank Observatory - Home of the GBT

https://greenbankobservatory.org/

1 day ago · Green Bank Telescope 20 Meter 40 Foot Green Bank Observatory and National Radio Astronomy Observatory are supported by the U.S. National Science Foundation and are operated by Associated Universities, Inc.

Searches related to radio telescope

https://lco.global/spacebook/telescopes/radio-telescopes/

Angular Resolution Radio telescopes have to be much larger than optical telescopes because the wavelengths of radio waves are so much larger than the wavelengths of visible light. Radio wavelengths are between λ ≈ 3 km to λ ≈ 1 cm, while visible light wavelengths are between λ ≈ 4 x 10 -7 m (violet) and λ ≈ 7 x 10 -7 m (red). Angular resolution is a measure of how small details of ...