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Dec 31, 2010 P002

John ‘Longitude’ Harrison & the History of the Longitude Problem

 

ROG

John Harrison & the Longitude Problem

 

Harrison’s tomb at Hampstead

 

Harrison memorial March 2006

Times Online

 

Guardian Unlimited

 

It’s about time (Guardian Blog)

 

Worshipful Company of Clockmakers

The Incomparable John Harrison

 

NMM Collections Online

Timekeeping

 

University of St Andrews

Longitude and the Academie Royale

 

The English Attack on the Longitude Problem

 

Royal Naval Museum Portsmouth

John Harrison & the finding of longitude

 

Galileo Project

Longitude at Sea

 

Wikipedia

John Harrison

 

Longitude

 

BBC

‘Longitude watch comes alive’ 11/3/2002

 

NOVA Online

Lost at Sea — The search for Longitude

 

Ancient Navigation

 

History of the Sextant

 

 

Internet Resources — John Harrison, Longitude, Navigation, Timekeeping & ROG History