Radio: A Powerful Medium of Communication Radio is a technology that allows the transmission of information through electromagnetic waves, primarily used for broadcasting audio content like music, news, and talk shows. It has played a crucial role in mass communication since the early 20th century. 🧪 Invention and History The concept of radio was developed in the late 19th century by scientists like Guglielmo Marconi, who is credited with sending the first long-distance wireless signal in 1895. Over the next few decades, radio transformed from a military and maritime tool into a global medium for public entertainment and information. 🎙️ How It Works Radio works by transmitting sound signals via radio waves. These waves travel through the air and are received by antennas on radios. The