Unusual radio technologies

The papal conclave is one of the most secretive and spiritually significant events in the world. Rooted in centuries of tradition, more than 100 cardinals gather within the Vatican walls to elect a new pope. According to strict regulations, this process must remain completely confidential, free from any external influence. In the modern era, however,…

Radar is one of the most important and widely used sensing technologies in the modern world. Whether it’s air traffic control, weather monitoring, or national defense, radar plays a central role. However, in recent years, a lesser-known yet increasingly promising technology has gained attention: passive radar. Unlike conventional (active) radar systems that emit their own…