# Vernier Scale on a Circle

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.

This Demonstration shows a Vernier scale on a circle with precision 5'. To start, try to find where the line segments match up the best.

Contributed by: Izidor Hafner (August 2012)

Open content licensed under CC BY-NC-SA

## Snapshots

## Details

The Vernier scale was invented in 1631 by the French mathematician Pierre Vernier (1580–1637). It was also called the nonius scale because the Portuguese mathematician Petrus Nonius (or Nunes) (1502–1578) invented a related system for the astrolabe.

Reference

[1] Wikipedia. "Vernier Scale." (Sept 27, 2012) en.wikipedia.org/wiki/Vernier_scale.

## Permanent Citation