Radio masts and towers Radio masts and towers Radio masts and towers are, typically, tall structures designed to support antennas (also known as aerials) for telecommunications and broadcasting, including television. There are two main types: guyed and self-supporting structures. They are among the tallest man-made structures. Masts are often named after the broadcasting organizations that originally built them or currently use them. In the case of a mast radiator or radiating tower, the whole mast or tower is itself the transmitting antenna. The terms "mast" and "tower" are often used interchangeably. However, in structural engineering terms, a tower is a self-supporting or cantilevered structure,
Jack Ketch fire made by the gallows". On that occasion, Ketch wielded the instrument of death either with such sadistically nuanced skill or with such lack of simple dexterity – nobody could tell which – that the victim suffered horrifically under blow after blow, each excruciating but not in itself lethal. Even among the bloodthirsty throngs that habitually attended English beheadings, the gory and agonizing display had created such outrage that Ketch felt moved to write and publish a pamphlet titled "Apologie", in which he excused his performance with the claim that Lord Russell had failed to "dispose himself as was most