An opisometer, also called a curvimeter, meilograph, or map measurer, is an instrument for measuring the lengths of arbitrary curved lines. == Explanation == A simple opisometer consists of a toothed wheel of known circumference on a handle.
An opisometer, also called a curvimeter, meilograph, or map measurer, is an instrument for measuring the lengths of arbitrary curved lines. == Explanation == A simple opisometer consists of a toothed wheel of known circumference on a handle.
Source: Wikipedia "Opisometer" · CC BY-SA 4.0
Share this article: X · Bluesky