Definition
Short wave refers to radio waves with relatively short wavelengths, typically between 10 and 100 meters. These waves can travel long distances by reflecting off the ionosphere, a layer of charged particles in Earth's atmosphere. This reflection allows short wave radio signals to bounce around the globe, reaching distant locations. Short wave is often used for international broadcasting, amateur radio, and emergency communications. Think of it like skipping a stone across a pond to reach the other side.