Masts are tall structures used to support sails on ships and boats. They are essential for sailing, as they help catch the wind, allowing vessels to move through water. Masts can vary in height and design, depending on the type of vessel and its intended use. In addition to sailing, masts are also used in other fields, such as telecommunications. Radio masts and cell towers are examples of masts that support antennas for transmitting signals. These structures are crucial for communication, enabling mobile phones and radios to connect over long distances.