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. 

Antique compass on world map. Vintage geographic history maps with old marine compasses arrows, ancient nautical sailing ship journey compass. Navigat Stock Vector Image & Art - Alamy

Explained: The science behind how compasses work - Times of India

Brass Compass Sextant Navigation Instruments Vintage Style Sextant Ship History

VINTAGE NAUTICAL MARINE Antique Astrolabe Ship Sextant Compass with BoxChristmas $124.21 - PicClick AU

The Christopher Columbus Navigation Lesson Nobody Taught Us

Compass - Wikipedia

History of the compass - Wikipedia

Evolution of Navigation Systems - Inventionland

Kompas – Wikipedie

Binnacle - Wikipedia

Nautical World Antique Flat Bronze Compass 3 Titanic Ship History ENGRAVE VTG Brass Compass : : Home & Kitchen

Jan Collaert I, New Inventions of Modern Times [Nova Reperta], The Invention of the Compass, plate 2