A History of the Ship's Compass

Mechanical gyroscopes are beginning to be replaced by ring-laser or hemispherical-resonator ones, but most ships retain a traditional magnetic compass as a backup—just in case. 

The History of the Pocket Compass - Dutch Antiques

MARINE NAVIGATIONAL COMPASS HISTORY

Compass

PDF) Compasses and sinking ships: Mrs Janet Taylor's contribution in the compass adjusting controversy of mid-nineteenth-century England

What is a magnetic compass and how does it work?

File:Navigation Compass Mayflower II ship 1956.jpg - Wikimedia Commons

Magnetic Compass - National Maritime Historical Society

What is a Compass? How Does it Work? - Teaching Wiki

A History of the Ship's Compass Naval History Magazine - December 2022, Volume 36, Number 6

The compass: How a flawed and unreliable invention changed the world

How To Remagnetize A Compass – Oceanus Brass