Abstract: This paper proposes a method for encoding and decoding two-dimensional bar code which based on the polar code. To use the polar encoder and matrix interleaver on the source information to ...

Thanks to Samuel F.B. Morse, communication changed rapidly, and has been changing ever faster since. He invented the electric telegraph in 1832. It took six more years for him to standardize a code ...

When [101 Things] didn’t want to copy Morse code, he decided to build a Pi Pico system to read it for him. On the face of it, this doesn’t seem particularly hard, until you look at the practical ...

From NATO phonetic to the Greek alphabet, plus historic military codes, Morse Symbols, and other tricky letter systems, there’s something for everyone in this quiz. We’ve created a 26-question ...

Infostealer threats are rapidly expanding beyond traditional Windows-focused campaigns, increasingly targeting macOS environments, leveraging cross-platform languages such as Python, and abusing ...

Author Steve Herman (W7VOA) has been a licensed amateur radio operator for over 50 years and is a retired Voice of America correspondent. To the average gamer, the “Hill” is a high-fidelity map in ...

Curious how the Caesar Cipher works? This Python tutorial breaks it down in a simple, beginner-friendly way. Learn how to encode and decode messages using one of the oldest and most famous encryption ...

When Stranger Things Season 5 concluded on December 31, 2025, the world watched as Hawkins found peace; yet, a massive portion of the fanbase felt a lingering sense of dread. Many viewers argued the ...