Masts are tall structures used primarily on ships and boats to support sails. They are essential for sailing vessels, as they help harness wind power to propel the craft forward. 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 telecommunications. These masts support antennas for mobile phones and radio signals, allowing for effective communication over long distances. They are often found on towers or rooftops and play a crucial role in modern connectivity.