Cadrans

Cadrans are specialized tools used to measure angles, distances, or slopes, often found in surveying, engineering, and construction. They function similarly to a large protractor, with a graduated scale and a rotating arm or dial that indicates precise measurements. By aligning the cadran with specific points or surfaces, professionals can determine accurate angles or distances critical for design and mapping. Essentially, they serve as precise reference devices that help ensure measurements are consistent and reliable in various technical applications.