Spark-gap transmitter

A spark-gap transmitter is an early type of radio transmitter that generates radio waves by producing electrical sparks between two electrodes. When a high-voltage electricity pulse is applied, it creates a spark that rapidly turns on and off, producing electromagnetic radiation. This radio frequency creates signals that can be sent over distances, allowing for communication. Spark-gap transmitters were widely used in the early 20th century for wireless telegraphy before more advanced technologies replaced them. Their simplicity and effectiveness laid the groundwork for modern radio communication.