Trammel of Archimedes

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The Trammel of Archimedes is a mechanical device that facilitates the drawing of perpendicular linear motions, ensuring accurate right angles in constructions. It consists of two arms connected by a cord and a pivot point, allowing for movement while maintaining a fixed angle between the arms. This tool was invented by Archimedes, the ancient Greek mathematician and engineer, and is still used today in various fields such as architecture, woodworking, and engineering.