Lost at Sea: Finding Longitude with Ships, Clocks & Stars
Sea Clocks: The Story of Longitude: Borden, Louise, Blegvad, Erik
John Harrison's Marine Chronometers – London, England - Atlas Obscura
Sea Clocks: The Story of Longitude Children's Book with Learning
History of Chronometers Pt. 1: Origins - Worn & Wound
In-Depth: The Microscopic Magic of H4, Harrison's First Sea Watch
F】 Book Review: Longitude By Dava Sobel
The Clock That Changed the World (BBC History of the World)
History of longitude - Wikipedia
SEA CLOCKS by Louise Borden! The Story of Longitude! A Biography!
Longitude rewards - Wikipedia
Longitude — The Glass Universe