Ketch (It follows that a schooner does not have a mizzen mast.) If a vessel has two masts of approximately the same height, the rig with the larger sail forward is called a ketch, while the rig with the larger sail aft is a schooner. The American two-masted schooner is rare in Europe, where the ketch rig is preferred. In the year 1775, various ketches were utilized as warships by the Sultanate of Mysore during the rule of Hyder Ali. During the 17th and 18th centuries, ketches were commonly used as small warships, until superseded in this role by brigs during
How many angels can dance on the head of a pin? How many angels can dance on the head of a pin? The question "How many angels can dance on the head of a pin?" (alternatively ""How many angels can stand on the "point" of a pin?"") is a reductio ad absurdum of medieval scholasticism in general, and its angelology in particular, as represented by figures such as Duns Scotus and Thomas Aquinas. It is first recorded in the 17th century, in the context of Protestant apologetics. The question has also been linked to the fall of Constantinople, with the imagery of scholars debating about minutiae while the Turks besieged the