Happy Sabbath! Last Sabbath we have studied semaphore and today we will learn how to communicate more quickly. All of the previously used methods […]
Telecommunication Series Part 4 – Semaphore
Happy Sabbath! Another more complex system for sending signals using flags – called semaphores – was later developed. Here, messages can be spelled letter […]
Telecommunication Series Part 3 – Smoke and Fire
Happy Sabbath! Did you guys know? It turns out that text messaging was not the only way people communicate back then. How did people […]