Al Williams writes that International Reply Coupons (IRCs) are nearing their end as the Universal Postal Union prepares to phase them out by December 31, 2026. Once essential for radio hobbyists and international mailers, these coupons allowed individuals to pay postage in one country that could be exchanged for local stamps in another, but modern digital communication has rendered such physical vouchers nearly obsolete.
- Radio enthusiasts used the system primarily to receive QSL cards from foreign stations without requiring senders to cover international shipping costs.
- The Universal Postal Union consists of an association of post offices across 192 countries.
- Charles Ponzi's original scheme involved exploiting price discrepancies for these coupons between different nations.
- Radio enthusiasts used the system primarily to receive QSL cards from foreign stations without requiring senders to cover international shipping costs.
- The Universal Postal Union consists of an association of post offices across 192 countries.
- Charles Ponzi's original scheme involved exploiting price discrepancies for these coupons between different nations.
A software project that recreates the aesthetic of a 1980s cable community bulletin board for any display, with an emphasis on vintage CRT televisions. It provides a rotating broadcast including time and date, custom messages, fun facts, dad jokes, weather updates via Open-Meteo, and scrolling RSS news headlines in a retro ticker crawl.
Key features include:
A web-based control room for real-time customization of identity, timing, feeds, colors, and message rotation without needing to reload the screen.
Hardware optimization for Raspberry Pi users looking to feed video through HDMI-to-coax modulators or composite AV outputs into old TVs.
Integration with CheerLights to incorporate global color changes directly into the headline crawl.
Support for background music via local audio files and customizable overscan margins for vintage display compatibility.
Key features include:
A web-based control room for real-time customization of identity, timing, feeds, colors, and message rotation without needing to reload the screen.
Hardware optimization for Raspberry Pi users looking to feed video through HDMI-to-coax modulators or composite AV outputs into old TVs.
Integration with CheerLights to incorporate global color changes directly into the headline crawl.
Support for background music via local audio files and customizable overscan margins for vintage display compatibility.
This New York times article from June 15, 1989 by Julie Lew explores the launch of Maxis Software's *SimCity*, a pioneering simulation game that tasks players with building and managing complex urban environments. Eschewing traditional "win or lose" mechanics, the game encourages experimentation through zoning, taxation, and infrastructure management to create thriving cityscapes. From surviving historical disasters to constructing digital utopias, the software is praised for its sophisticated modeling and potential as a legitimate tool for teaching urban planning.
This repository contains the original source code for the Apollo 11 guidance computer (AGC). It includes digitized files for both the Command Module and the Lunar Module, as archived by Virtual AGC and the MIT Museum.
- Comanche055 source code for the Command Module
- Luminary 099 source code for the Lunar Module
- Comanche055 source code for the Command Module
- Luminary 099 source code for the Lunar Module
A compilation of genealogical and historical posts focused on Lafourche Parish, Louisiana. The collection features various research snippets including:
* 19th-century social history and business anecdotes from Thibodaux.
* Detailed explorations of legal records such as successions and interdiction cases.
* Family lineage studies for names like Augeron, Benoit, Montet, and Aucoin.
* Historical reflections on local landmarks including St. Joseph Co-Cathedral and the Thibodaux library system.
* 19th-century social history and business anecdotes from Thibodaux.
* Detailed explorations of legal records such as successions and interdiction cases.
* Family lineage studies for names like Augeron, Benoit, Montet, and Aucoin.
* Historical reflections on local landmarks including St. Joseph Co-Cathedral and the Thibodaux library system.
This deep dive from *The New York Times Magazine’s* 1619 Project explores the dark origins of America's sugar industry, tracing its evolution from a luxury commodity to "white gold" fueled by the brutal exploitation of enslaved labor.
The article examines how the high-intensity demands of sugarcane production shaped Louisiana's economy and left a legacy of racial hierarchy that persists today—not only through systemic economic barriers preventing Black land ownership but also in the disproportionate impact of sugar-related health issues, such as obesity and diabetes, on African American communities.
The article examines how the high-intensity demands of sugarcane production shaped Louisiana's economy and left a legacy of racial hierarchy that persists today—not only through systemic economic barriers preventing Black land ownership but also in the disproportionate impact of sugar-related health issues, such as obesity and diabetes, on African American communities.
An exploration of the history and eventual decline of Heathkit, a company famous for producing comprehensive electronic kits ranging from ham radio to early personal computers. Starting with military surplus in 1947, the brand became known for its high-quality components and educational manuals that helped users truly understand their builds. The article discusses how market shifts toward inexpensive pre-assembled electronics and the acquisition by Zenith led to the company's eventual closure in 2012.
This repository provides an implementation and recreation of the first published version of the Logic Theory Machine, also known as the Logic Theorist. Originally developed by Allen Newell, J. C. Shaw, and Herbert A. Simon in 1956, this program was designed to prove theorems in propositional logic using principles from Principia Mathematica. The project includes a Python-based interpreter for the IPL-I abstract machine language, tools to run the program against historical axioms and theorems, and utilities to analyze generated proofs.
Main components:
Implementation of the 1956 Logic Theory Machine
Propositional logic based on Principia Mathematica
Python interpreter for the IPL-I language
Tools for running simulations and verifying results
Main components:
Implementation of the 1956 Logic Theory Machine
Propositional logic based on Principia Mathematica
Python interpreter for the IPL-I language
Tools for running simulations and verifying results
Hungarian journalist László Bíró revolutionized writing tools after observing that newspaper ink dried instantly while his fountain pen consistently left smudges. He realized that the thicker, more viscous ink used in newspapers could not flow through a traditional fountain pen, which requires thin ink to balance air and liquid. To solve this, he engineered a mechanical solution using a revolving ball mechanism to transfer thick ink onto paper smoothly.
>"Ajitem S. writes about how a conversation on a plane in 1953 set in motion the stack that eventually processes tens of thousands of flight bookings per second"
