Image of radio waves emanating from a transmission tower. Radio waves are electromagnetic waves that a created when charge is accelerated. This happens when the voltage across a transmitting aerial is varied.
Illustration ID: PHYSICS-radio-waves-_10
copyright Russell Kightley
Illustration size: 25.0 Mpixels (71.5 MB uncompressed) - 5000x5000 pixels (16.7x16.7 in / 42.3x42.3 cm at 300 ppi)